HP StorageWorks 9000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028,
HP StorageWorks 9000 - Virtual Library System Manual
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- HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 1
Replication This document describes the HP StorageWorks VLS and D2D systems and their concepts, including automigration, deduplication, and replication, to help you define and implement your virtual tape library system. It includes best practices for working with specific backup applications. This - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 2
statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Acknowledgements Microsoft, Windows, Windows XP, and Windows NT are U.S. registered - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 3
Considerations for Single Library Systems 34 Multiple Library ...35 Benefits of Multiple Library Systems 35 Multiplexing, Multistreaming, and Multipathing 36 Multiplexing ...36 Multistreaming ...36 Multipathing ...36 Blocksize and Transfer Size ...37 HP StorageWorks VLS and D2D Solutions Guide 3 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 4
SAN Design Guidelines 46 General SAN Design Considerations 46 SAN Zoning ...46 Operating System Tape Configuration 47 LUN Masking and Mapping 49 Backup Application Basic Guidelines 50 HP Data Protector Application Overview 51 Symantec NetBackup Application Overview 51 IBM TSM Application - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 5
How it Works ...111 VLS Scalability ...111 VLS Automatic Performance Load Balancing 113 VLS Warm Failover ...114 Implementation ...115 Device Configuration Preparation 115 Capacity Licensing ...117 Virtual Libraries/drives/cartridge Configuration 118 EVA Preparation ...119 Storage Pooling ...121 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 6
Library 147 Restoring from Automigration Media 148 VLS Accelerated Deduplication 148 How it Works ...149 Accelerated Deduplication Implementation 152 Supported Replicating a Subset of Virtual Cartridges - a Use Case 193 Detailed Backup Application Guidelines for VLS 194 HP Data Protector ...194 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 7
206 6 Support and Other Resources 209 Related Information ...209 Documents ...209 Websites ...209 Contacting HP ...209 Before you contact HP ...209 HP contact information ...210 Subscription Service ...210 Document Conventions and Symbols 210 Glossary 213 Index 215 HP StorageWorks VLS and - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 8
Figures 1 Common Backup Technologies 16 2 HP Virtual Tape Library Product Range 17 3 Basic Write-to-disk Setup 19 4 Unique Backup Data 20 5 Enterprise Deployment with Small and Large Remote and Branch Offices 24 6 Remote Site Data Protection Before Replication 25 7 Remote Site Data Protection - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 9
100 41 7.5 TB System with Expansion Disk Array Enclosures 103 42 Full VLS9000 System 104 43 Internal Architecture of the VLS (VLS9000 Shown 112 44 Virtual Drives across Multiple Nodes 113 45 Storage Pool Load Balancing on the VLS 114 46 VLS12000 EVA Gateway Connected to an EVA 120 47 Single vs - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 10
66 Backup Analysis 150 67 Physical versus Logical Data 150 68 Backup Sessions with Duplicate and Unique Data 152 69 VLS9000 and VLS12000 node oversubscription 158 70 How Replication Fits into the Deduplication Architecture 162 71 The Replication Sequence 163 72 Replication Scaling 164 73 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 11
Network Latency 181 27 Summary of the Calculations Involved in the Sizing Examples 185 28 Recommended Settings for each TSM Server's dsmserv.opt File or Storage Agent's dsmsta.opt ...199 HP StorageWorks VLS and D2D Solutions Guide 11 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 12
29 Recommended Settings for each Backup-archive Client's dsm.sys File (dsm.opt File for Windows) ...200 30 Document conventions 210 12 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 13
Welcome to virtual tape libraries. This guide describes the HP StorageWorks VLS and D2D systems and their concepts, including automigration, deduplication, and replication, to help you define and implement your virtual tape library system. It includes best practices for working with specific - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 14
14 Introduction - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 15
array look to your backup server like a tape library. Implementation requires no new software and no significant redesign of your backup processes. On the VLS300 and VLS12000 Gateways, because they are attached to an EVA in your data's storage cycle. HP StorageWorks VLS and D2D Solutions Guide 15 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 16
needs of smaller IT environments. HP Virtual Library Systems are known for their easy integration, simple management, performance and capacity scalability, and fast restores. The VLS6000, VLS9000 and VLS12000 EVA Gateway are designed for medium to large-scale enterprises. They feature Accelerated - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 17
2 HP Virtual Tape Library Product Range . Typical VLS Environments In a typical enterprise backup environment, there are multiple application servers backing up data to a shared tape library on hosts' backups together into a single tape drive impacting HP StorageWorks VLS and D2D Solutions Guide 17 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 18
is required, virtual tape offers a more easily managed, higher performing solution. Consider a file library system if: • The application is in a LAN or LAN/SAN hybrid configuration. • Fewer than four servers write data to secondary disk storage. • You can redeploy existing arrays as secondary disk - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 19
than a virtual library system. You might, however, implement such a solution if: • Virtually instant recovery is critical. • You need to leverage a high-availability investment. • You are doing image recovery rather than file recovery. • You need a zero downtime solution. HP StorageWorks VLS and - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 20
storage HP StorageWorks Virtual Library Systems (VLS), and HP Dynamic deduplication, an integrated feature with HP StorageWorks D2D Backup System. Both HP deduplication solutions offer the following benefits: • Longer retention of data. • Faster, less expensive recoveries and improved service - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 21
for mid-sized enterprise and remote office users storage. Retention policy: • 1 week, 5 daily incremental backups • 6 months, 25 weekly full backups Data parameters: • Data compression rate = 2:1 • Daily change rate = 1% (10% of data in 10% of files) HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 22
Table 3 1 TB File Server Backup Data stored normally 1st daily full backup 500 GB 1st daily incremental backup 50 GB 2nd daily incremental backup 50 GB 3rd daily incremental backup 50 GB 4th daily incremental backup 50 GB 5th daily incremental backup 50 GB 2nd weekly full backup 500 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 23
old backups is not freed up. As in the example above, you should create enough virtual tape capacity to hold backups for your entire retention policy but no more. Replication Introduction -effective way. Using replication, you can protect data anywhere. HP StorageWorks VLS and D2D Solutions Guide 23 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 24
changing of physical tapes, and the process is prone to human error. HP replication, available on its VLS and D2D systems, now offers the solution to both these problems. You can replicate local backup data (virtual cartridges) between sites in a reliable, automated manner at a fraction of the costs - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 25
7 Remote Site Data Protection Using Replication . Deduplication is the key technology enabler for replication on HP VLS and D2D systems. (VLS systems use HP Accelerated deduplication, and D2D systems use Dynamic deduplication.) The same technology HP StorageWorks VLS and D2D Solutions Guide 25 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 26
can deploy the HP VLS and D2D systems for replication in many ways depending on your requirements. You should understand the terminology associated with deduplication and replication. The key terminology for replication deployment: • Source: A series of slots/cartridges in a virtual library that act - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 27
, if you have two VLS9000 sites that each requires 2-nodes/2-arrays for just their backup performance/capacity and 2-nodes/2-arrays for their replication target performance/capacity, then you have the following choices for cross-replication deployment: HP StorageWorks VLS and D2D Solutions Guide 27 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 28
2-node/2-array VLS9000 (with deduplication) for backup and a separate 2-node/2-array VLS9000 ( supported. Backup Application Interaction with Replication The replication in both the VLS and D2D systems target virtual library from the source device's backup application. • For D2D systems, this - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 29
work in every environment. Understand the possible limitations: • Do not confuse Virtual Tape Library replication with "high availability/continuous access" which is a type of full bandwidth replication used on Disk Array at an associated higher cost. HP StorageWorks VLS and D2D Solutions Guide 29 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 30
30 Concepts - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 31
when designing your system. Use models are service level than going directly to tape but does not need the highest service level (split mirror, for example). • Slow servers in your current backup topology. Supported topologies include SAN or LAN/SAN hybrid: HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 32
good candidates for VLS and D2D because you can configure multiple virtual tape drives, disable multiplexing, and then backup each slow server section of the Developer & Solution Partner Program web page: http://h21007.www2.hp.com/dev/. • Data that you want to electronically off-site using - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 33
use the fewest number of virtual libraries. For example, use one virtual library per backup application. Single Library The single-library use model is a many-to-one configuration -- all hosts see one communal library. This is the default configuration. HP StorageWorks VLS and D2D Solutions Guide 33 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 34
, you're using less media. • With the VLS9000 or VLS Gateway, you can consolidate your storage system to use only one large VLS (greater than 500 usable TB) virtual tape is licensed per TB. Setup is largely automated and does not require manual intervention. Considerations for Single Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 35
Dedicated Libraries Shown) . Benefits of Multiple Library Systems The library - There are two scenarios: 1) You have a dedicated copy host that sees the copy library and all of the dedicated virtual libraries. There is SAN sharing and you may have to HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 36
and D2D support the option of presenting any virtual library device (changer virtual library changer device over two Fibre Channel ports because the backup application must always be able to access the changer to perform any backup/restore operations. Many enterprise backup applications (such as HP - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 37
enterprise backup environments (operating systems or backup application) do not support dual path to tape drives because they see this as two separate drives. Given the fact that a virtual library can create many virtual backups? How do you want HP StorageWorks VLS and D2D Solutions Guide 37 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 38
time due to having to manually balance all backup jobs across multiple backup targets. This manual balancing is even more difficult when . • Copy your backups from your virtual library to physical tape and then ship these physical tapes to off-site storage. There are different methods of creating - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 39
type and virtual cartridge size do not need to match the physical library in any way; the backup applications all perform "object copy" where they effectively backup the backup and therefore append and span copy jobs onto the physical tapes just like they would with backup jobs. HP StorageWorks VLS - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 40
Environment . Media Server Considerations To support the background copy of backup data from the VLS or D2D to a tape library, use one or more of your tape copies are plugged into the same SAN switch as the virtual library and physical library so the copy traffic does not use any SAN bandwidth. In - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 41
storage as physical tapes can be fully filled. • Monitor and track copy jobs from the backup application. • Use any tape library that is supported that transfers data from virtual cartridges on disk to a physical tape library connected to the VLS device HP StorageWorks VLS and D2D Solutions Guide 41 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 42
failures. • Echo copy can only use the tape libraries supported by the VLS firmware (for example, HP MSL, EML, ESL-E libraries). • Because echo copy automatically links the virtual and physical tapes (to maintain media manage- ment with enterprise backup applications), human error is a factor to - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 43
working hours without affecting network performance because no data is sent over the network during the offload. • Cartridges can be offloaded at the maximum read performance for a virtual library becomes more intelligent and transfers only the changed HP StorageWorks VLS and D2D Solutions Guide 43 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 44
site on physical tape. See Introduction to Replication. The replication system on both VLS and D2D creates and maintains a cartridge mirror data compared to physical tape offsiting when you consider all manual costs. • The replication target library is not visible to the backup application and does - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 45
not using a virtual tape library. To restore from tape, place the tape in a library or drive that system, HP provides some performance tools which are part of the Library and Tape Tools package available at http:// www.hp.com/support/tapetools. HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 46
Channel SAN) to the VLS or D2D system. For example, if this test reports 30-40 MB/s on a D2D, there is not a problem with the D2D or transport link. This test should report 100150 MB on a VLS. Before starting the test, HP recommends creating a new virtual library to avoid overwriting any data on the - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 47
Design Guide available at the same web location has detailed instructions and best practices for configuring the tape drivers for the following operating systems: • HP-UX • Microsoft® Windows • Tru64 UNIX® • Linux • NetWare • Sun Solaris • IBM AIX When adding a VLS or D2D virtual library to - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 48
library devices listed. 6. Stop and disable the Removable Storage service manually edit the system registry using RegEdit. Log into the system as a user with Administrative privileges, run RegEdit, and navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services support - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 49
see the virtual devices to which it does not have access and to which it cannot write. This requires the administrator to manually allocate specific virtual drives in the virtual library to specific media servers to meet their performance requirements. HP StorageWorks VLS and D2D Solutions Guide 49 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 50
host. It lets you manually assign new LUN numbers to the virtual devices visible to the host integrating an HP virtual library with enterprise backup applications HP StorageWorks backup application implementation guides at http://www.hp.com/go/ebs detailing • HP Data Protector • IBM Tivoli Storage - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 51
the cell (as supported) can connect a library. If a system has Storage Unit: A NetBackup storage unit is a storage device attached to a NetBackup server. A storage unit consists of the media server and tape devices where NetBackup stores files and data. HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 52
pool, making a set of tapes to send off-site for disaster protection. By replacing the primary tape storage pool with a virtual library, you can dramatically improve backup and restore times, reduce the need for primary disk, and enable more use of advanced TSM functions such as LAN- - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 53
servers provide services to back up and recover data for the NetWorker client computers in a datazone. • NetWorker storage node: a NetWorker storage node can Console server, NetWorker servers, and NetWorker storage nodes are also NetWorker clients. HP StorageWorks VLS and D2D Solutions Guide 53 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 54
54 Backup Solution Design Considerations - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 55
mixed-IT solutions and environment analysis, visit the HP StorageWorks Enterprise Backup Solutions web site: http:// www.hp.com/go/ebs. The virtual tape solution uses disk storage to simulate a tape library. That is, a virtual library simulates libraries with tape drives and slots as if they were - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 56
Specifications Table 6 D2D Technical Specifications D2D2500 Backup Systems D2D4000 Backup Systems D2D4112 Backup Systems For remote or branch offices and smaller data subnets. Both ports can access the web GUI but virtual libraries are split across the two ports. Use this mode if: 56 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 57
supports 4Gbit Fibre Channel. Virtual library devices are assigned to an individual interface; therefore, balancing virtual of individual devices. Multiple Backup Streams The HP D2D Backup System performs best with multiple backup streams sent to HP StorageWorks VLS and D2D Solutions Guide 57 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 58
multiple backup jobs to back up specific data to selected virtual libraries. Configuring backups to run in parallel rather than serially using the HP D2D Backup System can be achieved by using either a directly attached tape drive or library where the offload is controlled by a manual or scheduled - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 59
. However, with virtual tape there is no need to find all of the pieces of media. Because the data is stored on disk, the time to restore is lower due the ability to randomly seek more quickly within a backup and load a second cartridge instantly. HP StorageWorks VLS and D2D Solutions Guide 59 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 60
storage. D2D Blueprints The following blueprints of D2D virtual tape libraries with deduplication and replication start from specifying company requirements, then defining the HP the business. Solution: HP D2D Backup System (iSCSI) with Tape Offload, typically used with HP Data Protector Express or - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 61
. • Configure a single library for best deduplication ratio or multiple libraries for best throughput. • Consider configuring multiple virtual libraries for different data types ( proof, 12 hour backup window, reduce dependency on physical tape. HP StorageWorks VLS and D2D Solutions Guide 61 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 62
Storage Manager, EMC Networker, Commvault, Backup Exec, etc. For a full list see http://www.hp.com/go/connect and http:// www.hp.com/go/ebs. Device configuration highlights: Consider configuring multiple virtual libraries itself. This will attract higher licencing costs, however. 62 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 63
multiple virtual libraries for different data types (office files, MSExchange databases) across multiple host servers to get best possible performance and deduplication ratio. Figure 20 Multi-site Small Business Automated Disaster Recovery Solution . HP StorageWorks VLS and D2D Solutions Guide 63 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 64
followed to ensure remote sites and data centre D2D have the same data reference points. Seeding can be done via WAN link, via 64 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 65
new link using the HP StorageWorks Backup Sizer. Introduction to VMWare Terminology Figure 22 VMWare Infrastructure Environment . The above diagram shows the different components that make up a virtualized server environment and its connections to external primary storage and data protection devices - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 66
for backup so most backup applications will work when they are installed on the Proxy server. HP has tested Data Protector and Symantec Netbackup to great depth in this area. Device configuration highlights: Consider creating one virtual library per virtual machine (best throughput) or one large - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 67
: HP D2D with VTL interface and separate VCB proxy server with Data Protector VCB ZDB IR. Note that the VCB backup and the ZDB backup are completely independent of each other. Caveats: Limited to arrays that support DP ZDB IR - XP, EVA and LHN (future). HP StorageWorks VLS and D2D Solutions Guide 67 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 68
virtual libraries for different image types. Backup application configuration highlights: Configuring Zero Downtime Backup within Data Protector and Symantec Netbackup requires some additional scripting work. See the HP EBS SAN Design Guide at http://www.hp . Solution trade-offs: 68 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 69
feature of Data Protector by using HP Business Copy for EVA, XP ( LHN to follow). Further avoiding issues with backup application support. • Automatic and manageable works with any backup application and with any data type. See http://www.hp.com HP StorageWorks VLS and D2D Solutions Guide 69 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 70
values occur. However, the actual data is only stored once, so less storage is consumed by duplicate backup data. Figure 25 illustrates the process that Dynamic deduplication is enabled per library on the D2D. See Figure 26. When you configure the library, it defaults to deduplication enabled - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 71
. Restoring Data On receiving a restore command from the backup system, the D2D device selects the correct recipe file and begins reading it, starting with the first hash. This process is illustrated in Figure 28 and the ordered list that follows. HP StorageWorks VLS and D2D Solutions Guide 71 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 72
is unloaded and returned to its storage slot. While the housekeeping process can run as soon as a virtual cartridge returns to its slot, backup application overwrites two cartridges in different virtual libraries with 400 GB of data on each cartridge, the system will need two hours of inactivity - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 73
Price point. HP D2D2500/4000/4100 Backup Systems support it Works HP D2D Backup Systems with HP Dynamic virtual cartridge size to replicate. D2D Replication Implementation The following must be performed to implement replication on D2D systems. HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 74
Licensing On HP D2D 2500/4000/4100 Backup Systems, Dynamic deduplication is included as standard. Replication is to initialize the target device. • Option 3: Use physical tape initialization. Physical tape library access is required at both sites. Export tapes from the source, import tapes into - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 75
.) As part of the import process the hash codes and deduplication store are automatically created on the target device. The import is forced into the virtual mail slot of the virtual library on the target device and can then be moved into a usable slot. HP StorageWorks VLS and D2D Solutions Guide 75 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 76
in Slot Y, that daily incrementals go to Tape A in Slot B and so on. Replication is triggered by a tape being ejected from a virtual tape drive in the D2D. HP D2D replication ensures than minimum bandwidth is used for incremental backups being replicated from the same tape, by only transferring the - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 77
library B1. This is because there is a limit of four slot mappings on the target device. So A2 and B1 have to share a slot mapping on VTL D2. Notice how at data center D, target replication libraries can be shared among sources, allowing for consolidation. HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 78
replication. This example uses a D2D2500 source library IP 192.168.0.44 and a D2D4000 Fibre Channel target library at 192.168.0.207. The target already to the rear of the D2D unit. You must set your DNS and gateway address. DHCP is permitted but the network administrator should ensure that there is - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 79
set the IP address of the target library device. You must know the target library IP address. In this case, 192.168.0.207. b. Input the target appliance IP address. c. Select Add Target Appliance. The target library appears to the source and is online. HP StorageWorks VLS and D2D Solutions Guide 79 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 80
the bar codes match identically source and target. If the target library exists already the bar codes do not match. Note how target-lib2 is non-replicating until the slot mappings have been configured. b. Select target-lib2 as the target replication library to use. c. Select Next. 80 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 81
a. Provide a name for the slot mapping. b. Select Apply. Notice how the virtual bar codes at both the source and the target are displayed. In this case there is a 1:1 mapping from the source onto the target replication library using the drop down lists. HP StorageWorks VLS and D2D Solutions Guide 81 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 82
the target replication library to see the "synchronization status" of each virtual cartridge. For example, the screenshot below shows a D2D4000 target replication library with three replication target libraries set up ( are in the processing of replicating (replication synchronizing). 82 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 83
all the replication activity concerning that source in a time stamped Event History log. For the source library configured in the example above, you can see the stages and times as each of the four took to replicate, average replication speed, and so on. HP StorageWorks VLS and D2D Solutions Guide 83 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 84
Tool to help you size any backup solution including deduplication and replication: http://www.hp.com/go/storageworks/sizer . Sizing the bandwidth required is best illustrated by some examples: • 100 GB virtual cartridge replication over a 2 Mb/sec link with 100% bandwidth utilization, data off-sited - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 85
Figure 32 Example 1: 100 GB Virtual Cartridge Replication over a 2 Mb/sec This example assumes 66% link efficiency (typical). The net result is that the system can replicate a total of 2.16 GB in 3.64 hours with full bandwidth available most businesses. HP StorageWorks VLS and D2D Solutions Guide 85 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 86
Figure 33 Example 2: 100 GB Virtual Cartridge Replication over a 2 Mb/sec Link with 25% Bandwidth Utilization . Calculating data to replicate: • requirement where 500 GB of backup requires replicating each day. Figure 34 Example 3: 500 GB Virtual Cartridge Replication over a 2 Mbit/sec Link . 86 D2D - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 87
- but this does not meet the service level agreement. In this example, start off to a 10 Mbit/sec link resolves the problem. The replication time now within a fixed window Figure 35 Example 4: 500 GB Virtual Cartridge Replication over a 10 Mbit/sec HP StorageWorks VLS and D2D Solutions Guide 87 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 88
for "catch-up" mode if replications are paused/stopped due to a link failure. • Wherever possible do a proof of concept before implementing into production. 88 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 89
initialization is done via co-location or the WAN link. Use this table as a reference guide. Table 7 Sample Initialization and Replication Times Initial backup size in GB Link speed in 0.5 WAN link WAN link WAN link WAN link WAN link/D2D appliance HP StorageWorks VLS and D2D Solutions Guide 89 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 90
section provides an overview of how Telcos provide WAN links. With HP D2D device replication the typical parameters required to be specified to the or disaster recovery site will definitely have an effect of the link price. Needless to say if your premises already have a link in place D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 91
for choosing an uncontented service is that your replication data is not mixed with other users. Today's Ethernet connections typically take the form of a VPN (Virtual private network) so connections as if their core infrastructure was a massive router. HP StorageWorks VLS and D2D Solutions Guide 91 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 92
a major UK Telco operator quoted costs for links at various speeds for HP Sites in Bristol, UK and Warrington, UK, for a distance of around /sec depending on how much data needs to replicate. Table 8 Telco Prices for a 3-year Contract Including Installation (No Existing Links in Place) Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 93
to fully investigate all the options available. Telco Terminology and Branding for WAN Services Below are a sample of the services provided by BT (British Telcom) in the UK for inter-site WAN replication links: • BTnet Premium (Internet access) HP StorageWorks VLS and D2D Solutions Guide 93 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 94
optical fibre connections. LAN speed from 10 Mbps to 1 Gbps is supported. Alternative protocols can be used such as ATM and fibre channel. Using this service the LAN could span several sites with no VPNs. There is a best suited to users with a large number of low bandwidth sites. 94 D2D Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 95
of a total disaster at a remote site where the D2D Backup System and the servers it is protecting are destroyed or damaged, the replicated Virtual Tape Library at the disaster recovery site can be used to "reverse replicate" to the Virtual Tape Library HP StorageWorks VLS and D2D Solutions Guide 95 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 96
replication is a means whereby the source and target libraries maintain their identity, but where at the point network settings. 2. Create an identical virtual library (or libraries if more than one was originally there are multiple target libraries within the target appliance select the relevant one - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 97
select Apply. The system displays a message indicating that reverse replication has been established. The source will now commence synchronizing with the target and target virtual tapes will be copied can be tracked by clicking on the slot mapping tag. HP StorageWorks VLS and D2D Solutions Guide 97 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 98
from source to target in the normal manner. It is also possible to reverse the replication even if the target D2D system has lost the mapping. This is the case if a source library is accidentally deleted. Recovery is similar to the above except that only the replication wizard will be available. The - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 99
system (cannot use a whole-tape copy system). This is easy if the physical library is on the source site because you can use the normal backup application object-copy mechanisms to simply copy from the source virtual library to the physical library . HP StorageWorks VLS and D2D Solutions Guide 99 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 100
the replicated cartridges to a physical tape library, it must be "taught" what shown in Figure 40 by setting the target virtual libary to "read-only" mode (to generate a listing of which virtual cartridges have been successfully replicated restore from the imported virtual cartridges or copy them - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 101
system requirements and restrictions. The virtual tape solution uses disk storage to simulate a tape library. That is, a virtual library simulates libraries with tape drives and slots as if they were physical devices. Backup servers see the virtual HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 102
and get better utilization of the tape drives/libraries you have. The benefits of specific VLS models: • Because the VLS12000 is a Gateway to an EVA, it can take advantage of Instant Support Enterprise Edition - if a data pool fails, the "phone-home" service activates. 102 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 103
42 shows a full VLS9000-system with two 32-port connectivity kits. This system fills four racks and includes eight nodes, 16 arrays, four Fibre Channel switches, and four Ethernet switches. Figure 41 7.5 TB System with Expansion Disk Array Enclosures . HP StorageWorks VLS and D2D Solutions Guide 103 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 104
3 arrays 4 arrays 5 arrays 6 arrays 7 arrays 1 node 80 TB 160 TB n/a n/a n/a n/a n/a 2 nodes n/a 160 TB 240 TB 320 TB n/a n/a n/a 3 nodes n/a n/a 240 TB 320 TB 400 TB 480 TB n/a 4 nodes n/a n/a n/a 320 TB 400 TB 480 TB n/a 5 nodes n/a n/a n/a n/a 400 TB n/a n/a 104 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 105
with Two 32-port Connectivity Kits and 40 TB Arrays (2:1 Compression, Non-deduplication) 1 array 2 arrays 3 arrays 4 arrays 5 arrays 6 arrays 7 arrays 1 node 80 TB 160 TB n/a n/a n/a 480 TB 480 TB n/a n/a n/a n/a 560 TB 560 TB 560 TB 560 TB n/a HP StorageWorks VLS and D2D Solutions Guide 105 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 106
nodes 4320 Mb/s Notes: • Maximum theoretical performance values. • Assumes at least one capacity array per node. • 1MB = 1,000,000 bytes. 600 Mb/s 1200 Mb/s 1800 Mb/s 2400 Mb/s 3000 Mb/s 3600 Mb/s 4200 Mb/s 4800 Mb TB 17.6 TB 56.8 TB VLS6653 13.2 TB 26.4 TB 61.2 TB 106 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 107
/s) Notes: • Maximum theoretical performance values. Actual performance is dependent on environment. Software compression on VLS6200 impacts performance by up to 50%. • 1MB = 1,000,000 bytes. HP StorageWorks VLS and D2D Solutions Guide 107 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 108
of virtual tape libraries per node Number of virtual tape drives per node VLS12000 EVA Gateway 50 TB 512 TB and 1 PB (with hardware compression) 2 to 8 1 to 16 1 to 128 Table 20 VLS12000 EVA Gateway Backup Throughput using Deduplication 1 2 3 Number of EVA3000 or 4 EVA5000 Arrays (assumes - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 109
n/a n/a n/a n/a EVA3000 or EVA5000 Arrays 3 (assumes 56 600 MB/s 600 MB/s n/a n/a n/a n/a n/a drives per array controller) 4 800 MB/s 800 MB/s 800 MB/s n/a n/a n/a n/a 5 1000 MB/s 1000 MB/s 1000 MB/s 1000 MB/s n/a n/a n/a HP StorageWorks VLS and D2D Solutions Guide 109 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 110
800 MB/s 800 MB/s 800 MB/s 800 MB/s 1200 MB/s 1600 MB/s 1600 MB/s 1600 MB/s 1600 MB/s 1600 MB/s 1600 MB/s 1200 MB/s 1800 MB/s 2400 MB/s 2400 MB/s 2400 MB/s 2400 MB/s 2400 MB/s 1200 MB/s 1800 MB/s 2400 MB/s 3000 MB/s 3200 MB/s 3200 MB/s 3200 MB/s 110 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 111
the virtual library with its virtual tape drives and the virtual cartridges are stored on the back-end array LUNs. The internal architecture of the VLS has every VLS node connected (via dual paths) to every back-end array LUN as shown in Figure 43: HP StorageWorks VLS and D2D Solutions Guide 111 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 112
is scaled up (by adding more nodes and arrays) the virtual library can be expanded with it by adding more drives and more cartridges to the existing virtual library. (This requires the robot to be initially created with additional spare empty drive bays and empty slots.) 112 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 113
LUNs are least active. When you have multiple virtual cartridges written concurrently, the load is always evenly balanced across the back-end arrays and will always provide maximum performance regardless of which virtual cartridges are use for backup. HP StorageWorks VLS and D2D Solutions Guide 113 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 114
3.2 or higher) provides an automatic mechanism for faster recovery from node0 failures, which is the ability to automatically restore the previous virtual library configuration and licenses after a complete node0 replacement. This warm failover feature works as follows: 114 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 115
/cartridges and standard device configuration. • Identify the number of required virtual libraries. This could be based on the number of separate SAN fabrics or separate backup application instances/types. See Single Library vs. Multiple Libraries. HP StorageWorks VLS and D2D Solutions Guide 115 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 116
could be based on separating cartridges across virtual libraries, or decreasing the impact of array failure. See Storage Pooling. If you are planning to use deduplication, note that this currently supports only one storage pool per VLS. • For each virtual library, decide if dual SAN fabric design is - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 117
VLS model VLS6000-series Capacity upgrade license Enables an additional MSA20 array with 250/500 GB drives or half an MSA20 array with 750/1000 GB drives per license (so you need two licenses to add an MSA20 array with 750/1000 GB drives). HP StorageWorks VLS and D2D Solutions Guide 117 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 118
and masking. • HP recommends that you do not delete individual tape drives from inside the virtual library. Deleting drives in the virtual library introduces gaps in the LUN numbering for shared (unmapped) virtual tape drives, and many operating systems fail to scan the virtual tape drives that - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 119
future if required.) When creating virtual cartridges inside the virtual library, it is good practice to keep the virtual cartridge size smaller than the physical EVA. Dual pathing provides path balancing and transparent path failover on the VLS12000. HP StorageWorks VLS and D2D Solutions Guide 119 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 120
of the array (called A and B in Command View VLS). To do this, ensure that the preferred path for half of the VRaids in the array is set to Path A-Failover only, and the preferred path for the other half of the VRaids in the array is set to Path B-Failover only. 120 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 121
, maintenance is easier on a system with only one storage pool because the VLS balances performance automatically for a single pool. Load balancing the backup jobs across the pools with the VLS12000 and VLS9000 must be done manually. See Figure 47. HP StorageWorks VLS and D2D Solutions Guide 121 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 122
may result if you select storage pool policy 2 or 4. For example, if the storage pool policy is 2 and there are three arrays in the system, the VLS divides the three arrays into two storage pools - one storage pool spans across two arrays, and the other storage pool spans 122 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 123
Gateway Storage Pooling When creating and assigning storage pools, use the following information to ensure even load balancing: • Storage pools must be manually configured onto the array LUNs. • Limit the storage represents what is backed up from them HP StorageWorks VLS and D2D Solutions Guide 123 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 124
). • An array at its maximum configuration will give full performance. • The number of disks on the array can impact performance. • To make the most of the system, there must be enough disk shelves in the EVA (12/14 disks per shelf) to reach the required performance. 124 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 125
EVA do not want to buy more tape drives. virtual library (VLS 6105) has been configured with five drives • Servers 1 and 2 have LAN-attached data • Servers 3, 4, and 5 have shared storage resident on the MSA 1000 • The backup application is Data Protector HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 126
750MB/sec of base EVA array performance plus another 750MB/sec for the deduplication, giving a total of 1500MB/sec array performance. Therefore, you would need at least six EVA 4400/6xxx/8xxx arrays (each array with 8 shelves full of disks) to meet that requirement. 126 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 127
directly from physical tape if required. Solution advantages: • Very scalable up to 1280 TB, 4800 MB/sec with 8 nodes and 16 arrays • Simple to integrate into existing backup environment • Up to 16 libraries and 64 drives per node can be emulated HP StorageWorks VLS and D2D Solutions Guide 127 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 128
virtual media is lost. But configuring multiple storage pools to overcome this means increased manageability overhead. ISVs: Data Protector, Netbackup, Networker, TSM, Commvault. See a full list at http://www.hp can be recovered directly from physical tape if required. 128 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 129
High availability features in nodes and back-end disk arrays • Flexible emulations in terms of number of libraries, drives, slots, and media sizes • Easy http://www.hp.com/go/ebs. Device configuration highlights: Size using the HP StorageWorks Backup Sizer; the smaller the virtual media the faster - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 130
Storage Costs Enterprise Backup and Disaster Recovery Capability Company requirements: Full disaster recovery capability for an Enterprise HP Data Protector, Netbackup, and TSM only at this time. (Deduplication is the key enabler for deduplication-enabled replication.) 130 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 131
each site. Figure 53 Using VLS with Full Enterprise Backup and Disaster Recovery Capability . Recovery options: transported to the primary site and imported to new servers and arrays using physical tape at the primary site. Tape could also be supported. HP StorageWorks VLS and D2D Solutions Guide 131 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 132
physical tape transport - export and import. Other information: HP strongly recommends using the backup application to perform the copy disaster recovery site in a cost effective manner by consolidating storage at the disaster recovery site and with reduced fixed costs 132 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 133
, use separate virtual drives for each VMWare machine and backup VMWare machines in parallel. Backup application configuration highlights: None - works as normal network backup, disk agents and online backup agents on VMWare machines, media agents on separate backup server. HP StorageWorks VLS and - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 134
lot of small machines with not high volumes of application data. Other information: HP strongly recommends using the backup application to perform the copy from VLS to physical . File level recovery from a file system backup is only possible with Windows. The proxy 134 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 135
are copied from the primary storage to the proxy server for these types of backup. ISVs: HP Data Protector and Netbackup only at this time. (Tested by HP enterprise backup solutions lab in depth.) Device configuration highlights: Separate virtual library created for each VMWare machine. Backup - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 136
, Exchange and Oracle. Caveats: Limited to arrays that support DP ZDB IR - XP, EVA and LHN (future). ISVs: HP Data Protector and Symantec Netbackup only at this time fully tested by HP. Device configuration highlights: Configure different virtual libraries for SQL, Exchange, Oracle snapshot backups - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 137
aware" whereas HP Data Protector ZDB EVA & XP & LHN (Future) • Snapshots could take up large amount of EVA and XP space depending on frequency of snapshotsat extra cost Other information: A simple two step backup for complete protection: 1. VM backup HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 138
HP Business Copy for EVA, XP (LHN to follow) Further enhancements possible by providing multi-site disaster recovery by using low bandwidth replication on HP VLS devices. Large Enterprise Cross-site Backup with Deduplication and Inbuilt Disaster Recovery Company requirements: Fully redundant system - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 139
are polled (scripted) by HP Data protector for recently replicated cartridges, VLS units email Data Protector for recently replicated cartridges. Both of these trigger an automated catalog import at the replication target sites (HP unique feature). HP StorageWorks VLS and D2D Solutions Guide 139 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 140
site and imported to new servers and arrays using physical tape at the primary site. • Total Solution under HP Data Protector control • virtual cartridges on disk to a physical tape library connected to the VLS device. Echo copy is the supported VLS automigration scheme. 140 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 141
. When new destination tapes are loaded, automigration scans them, and reads the backup application headers. It then creates matching virtual cartridges in the virtual library specified for the echo copy pool the physical tape is in. See Figure 60. HP StorageWorks VLS and D2D Solutions Guide 141 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 142
is kept in the firesafe before it is deleted. The default is 2 days. While virtual cartridges are in the firesafe, they can be used to access data without having to restore from a physical copy. However, as far as the backup application is concerned, these cartridges 142 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 143
destination library, and the slot range to be used on the destination library. Echo copy pools follow the automigration policy of the virtual library they pertain to. Once echo copy pools have been created, the initial automigration setup is complete. HP StorageWorks VLS and D2D Solutions Guide 143 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 144
tapes off-site for 30 days. When the physical tapes are ejected from the destination library, the matching virtual cartridges are automatically moved to the device's firesafe where they are retained for as long as the user established in the automigration policies. The 144 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 145
sharing of the virtual libraries, the customer needs a separate tape drive/library for every backup server. With automigration, the customer can use a single tape library and effectively share it across the multiple virtual libraries. See Figure 63. HP StorageWorks VLS and D2D Solutions Guide 145 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 146
of enterprise customers. Even though this shared library configuration allows tape copying via the backup application, some customers still wish to use automigration to reduce the licensing costs of the backup application or remove copy data from their SAN. See Figure 64. 146 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 147
virtual library. The physical library or libraries can be bigger or smaller than the available disk space on the virtual library. If the physical library has more capacity than the available disk of the virtual library ) multiplied by the number of HP StorageWorks VLS and D2D Solutions Guide 147 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 148
to manually move the cartridge back into the virtual library. You can then restore from the virtual virtual library for restore operations. VLS Accelerated Deduplication HP Accelerated deduplication technology is designed for optimal performance and scalability to meet the needs of enterprise - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 149
Provides maximum hardware efficiency because the virtual cartridge file system was designed to be deduplication aware from the beginning, and data is not copied to a separate deduplication store. How it Works HP StorageWorks VLS and D2D Solutions Guide 149 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 150
is unloaded either inside a drive, or when it is ejected to a library slot. This phase only occurs if backups are complete. The on-the-fly backup analysis has already been performed, and the metadata database is queried to find out: a. what new backups are on the tape 150 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 151
Figure 68. If the new backup is incremental, it is reassembled so that duplicate data is replaced with pointers to the last full backup version. HP StorageWorks VLS and D2D Solutions Guide 151 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 152
following must be performed to implement Accelerated deduplication: • Upgrade from 4 GB to 16 GB RAM per VLS node • Upgrade to firmware version 3.1.2 or higher 152 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 153
See the HP StorageWorks Virtual Library System users guide for the complete setup procedures. Supported Backup arrays option; this destroys all existing virtual cartridges. On the VLS12000 you can retain Storage Pool1 but delete all other existing storage pools, then add their EVA LUNs to Storage - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 154
virtual library to increase the number of slots (either delete/recreate the virtual library with more slots or contact your HP support representative for assistance in expanding the existing virtual library deduplicated. See the HP StorageWorks Virtual Library System user guide for complete setup - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 155
Gateway One license per 2 TB EVA LUN 1The VLS9000 7.5 TB system does not require a license for a third expansion kit because the first two expansion kit licenses cover the storage works existing virtual cartridges to may need to manually expire them to HP StorageWorks VLS and D2D Solutions Guide 155 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 156
The physical used space will vary as deduplication creates temporary working data and then eliminates the duplicate data. Handling the services in the VLS when the device reaches 98% full disk capacity. Tthis ensures that there is no loss of data access when the storage Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 157
Enable Writes in the Chassis pane to do this. Design Considerations Because every enterprise backup environment is different, there is no single answer for optimizing deduplication. will drastically reduce the performance if deduplication is enabled. HP StorageWorks VLS and D2D Solutions Guide 157 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 158
available on the HP website: http://www.hp.com/go/storageworks/sizer. Node Oversubscription With Accelerated deduplication on the VLS9000 and VLS12000, you can add more nodes to enhance the deduplication performance of the systems. For every standard node (with virtual library devices configured on - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 159
deduplication processing only. Note: the maximum deduplication configuration currently supports four nodes. Optimum Record Sizing You must configure your backup or higher you do not need to manually change from File-level differencing to Backup-level HP StorageWorks VLS and D2D Solutions Guide 159 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 160
of the backup job and the client to correlate them. • If you rename the backup job or client after you have deduplication running on your system, the deduplication for that backup data is reset (as though you just activated it for the first time). 160 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 161
and scalability to meet the needs of enterprise data centers: • On a multi-node Works The HP VLS Accelerated deduplication is the key technology enabler for replication. Understand where replication fits into the post-processing deduplication architecture: HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 162
backup job is finished and the tape (which does not need to be full) is unloaded, the system compares the current backup with previous backups identified in step 2. Identifying the differences typically takes about the duplicate data on the older backups on the target. 162 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 163
to eliminate the duplicate data. HP VLS backup systems with HP Accelerated deduplication allow only unique to the unique data transmitted, there is some overhead of data instructions that also needs to pass across the replication link. This is known HP StorageWorks VLS and D2D Solutions Guide 163 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 164
Implementation You must perform the following to implement replication on VLS systems. Licensing On HP VLS devices, the replication is licensed as follows: • Requires on the one target device (this then supports up to ten source devices, and additional licenses 164 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 165
slots for future growth). • Manually create matching virtual cartridges (with the same barcodes, cartridge sizes, and cartridge type) in the target virtual library that match the source device and this existing connection is also used for node0 HP StorageWorks VLS and D2D Solutions Guide 165 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 166
ensure the firewall is configured to allow traffic on the required ports needed for replication to work: • The source VLS must be able to contact the target VLS on HTTP port ( . See your VLS user guide for details. Figure 74 shows an overview of the steps outlined below. 166 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 167
Figure 74 VLS Replication by Numbers . HP StorageWorks VLS and D2D Solutions Guide 167 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 168
link and the TCP/IP port number used for replication data transfers. Configure a LAN/WAN target, selecting names, slot mappings, and password for access. 168 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 169
Configure the replication target's window limits - start time and window duration. HP StorageWorks VLS and D2D Solutions Guide 169 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 170
to target device). On the source device, use "Manage LAN/WAN Library" and the relevant password to link the source and target devices together library at this stage are shown with an automigration status of "Unmanaged" because they are not yet associated with a copy pool. 170 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 171
mirror between the selected source virtual library and the target library. The barcodes created initially on the target device are now also "echoed" in the source virtual library. The slot range represents (they would be restarted on the next window). HP StorageWorks VLS and D2D Solutions Guide 171 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 172
initialization will be performed over LAN/WAN. Physical Tape Initialization Because in enterprise backup environments the initial backups can be quite large (many TB), for initialization on VLS systems is via physical tape transfer as shown in the following diagram: 172 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 173
EVA arrays, and for the VLS6200/6600 this would require switching 1-2 of the front-end Fibre Channel ports to be back-end storage ports.) Then add this tape library as a "SAN Destination Library Destination Library" devices to use for the tape export: HP StorageWorks VLS and D2D Solutions Guide 173 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 174
plug an HP Fibre Channel-attached tape library into the storage ports of the target device and add it as a "SAN Destination Library." Then you select the SAN destination library to use for the import and then instruct which tapes to load into this library, show the import Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 175
to be initialized in a faster time. To implement this, do not select "Initialize via Tape Transport" when creating the echo copy pools and configuring replication. HP StorageWorks VLS and D2D Solutions Guide 175 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 176
Continuing Role for Physical Tape HP has insisted all along that virtual tape libraries and physical tape are not libraries; they still have a valuable role to play. Reporting You can view the replication status and history from both the source and target VLS devices. 176 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 177
cartridges that do not have pending replication are: • Adding Cartridge. This is when the source virtual cartridge is being initially synchronized to the target cartridges. This can take a significant time when dealing with a large number of virtual HP StorageWorks VLS and D2D Solutions Guide 177 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 178
backup data type is not supported by deduplication.) Virtual cartridges that have been pre- manually override the replication window. • Mirror Scheduled. When the replication window starts, the modified source virtual cartridge is queued up for processing. If a source virtual Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 179
Successful Echo Copy" date/time to determine which target virtual cartridges are safe to restore from. Replication Job Status monitor the actual replication transfer) and you can also manually cancel any active jobs using the "Cancel" buttons. HP StorageWorks VLS and D2D Solutions Guide 179 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 180
a VLS. Design Considerations Because every enterprise backup environment is different, there is virtual library mapped to the echo copy pool with high priority set in the policies, and the lower priority jobs would go to the other cartridges or other virtual library, etc. 180 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 181
link as shown in Table 26. Table 26 Network Latency Job Concurrency Required to Network Latency Saturate Link 2 0ms Aggregate Mbytes/sec 80 MB/sec HP StorageWorks VLS and D2D Solutions Guide 181 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 182
any backup solution including deduplication and replication. See http://www.hp.com/go/storageworks/sizer. Wherever possible, do a proof of concept before implementing into production. Basic Calculations The time required for replication is derived from the equation: 182 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 183
: 1. Sizing Scenario: 20 TB of database and file-system replication. Figure 79 VLS Sizing Example 1 . • Database Full Backup size 15TB - 1% change rate • File System Full backup Size 5TB - Typical incremental size of 10% • Replication Window 24 Hours HP StorageWorks VLS and D2D Solutions Guide 183 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 184
replication. Here in this 2-node system both nodes work to ensure the replication link is instructions to be generated, so it is easy to achieve the requirement of backup and replication within 24 hours). 3. Sizing Scenario: 266 TB of database and file-system replication. 184 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 185
This simulates a 266 TB environment being replicated (200 TB database, 66.6 TB file system) with an initially stated 24 hour replication window (allowing four hours until the first replication 125 at 40% utilization 20 Mbits/sec at 40% utilization HP StorageWorks VLS and D2D Solutions Guide 185 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 186
300 Mbits/sec). • If possible, allow 25% extra capacity for "catch up" in the event of a backlog or paused replications should a link go down. 186 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 187
amount of working disk space the virtual library containing library to a backup application in the disaster recovery site (note the backup application can only be presented to the target device, it cannot also be presented to the source device as well). HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 188
site), you can import the replicated cartridges into the existing backup application database. You can do this manually at the time of the disaster recovery, or you can use an automated import script (see Creating at the same time; see Backup Application Interaction with 188 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 189
One option would be to use the LUN Mapping feature in the VLS to hide the target virtual library from the backup application. But in the event of a disaster recovery, you can perform the much data can be restored, and so generally you would restore the HP StorageWorks VLS and D2D Solutions Guide 189 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 190
VLS GUI (loading in a previous saved configuration). Alternatively you can manually recreate the original virtual library configuration and replication configuration. There is currently no method of restoring the media database because it did not backup to those tapes. 190 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 191
that were successfully replicated into replication targets since the last report. The attachment format is: ISV~~~ Email body example: Email attachment example: HP StorageWorks VLS and D2D Solutions Guide 191 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 192
import commands: :0 bc: # send virtual cartridges on the destination VLS. The VLS with the source library must support automigration; however, it is not necessary for the destination VLS to do so. If you have an earlier generation VLS system and you purchase a VLS6200, VLS6600, or VLS12000 Gateway - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 193
extended SAN into the VLS1 back-end array zones. That is, the back-end fibre channel ports of VLS1 can see the replication library on VLS2. 4. On VLS1, "manage" or add the VLS2 replication library as the destination library. See Automigration Setup. HP StorageWorks VLS and D2D Solutions Guide 193 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 194
restores and on deduplication. Because you can create additional drives easily in the virtual library and allocate them to Media Agents as necessary, sufficient backup streams can be concurrently written without requiring multiplexing. • Disable client backup compression. 194 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 195
service pack. If this is not yet available, request SSPNT610_012 (which you can automatically deploy to all Windows Disk Agent clients) through the Data Protector support many virtual cartridges backup specification and then manually run it from the HP StorageWorks VLS and D2D Solutions Guide 195 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 196
import commands for HP Data Protector. The input to the script is the ISV Import email report (containing a list of cartridges by /barcode/library/slot that were if [ -z ${DRVNAME[2]} ] then DRVBSY[2]=1 fi if [ -z ${DRVNAME[3]} ] then DRVBSY[3]=1 fi #find a drive to use 196 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 197
the VLS for use with NetBackup, select "HP VLS" as the library emulation. NetBackup requires the use of this emulation in all HP StorageWorks VLS products for device support purposes. • Barcode formats: When configuring the barcode formats for the virtual cartridges, do not exceed eight characters - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 198
option for deduplication to work. • Disable multiplexing in virtual library in NetBackup terms with a robot type and robot number. For example, create a libmap_filecontaining entries with the library serial number, library type, and library number: DEC06150U7~TLD~2 198 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 199
a VLS regardless of whether deduplication is enabled or disabled: • Configuration of libraries: See the HP StorageWorks Enterprise Backup Solution with Tivoli Storage Manager implementation guide for details on how to configure the device drivers for HP libraries and drives, including how to set the - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 200
require further adjustments of these variables. See the IBM Tivoli Storage Manager Performance Tuning Guide, available on the IBM support web site, for more information. Table 29 Recommended Settings for the password for "admin" above with your TSM server admin password. 200 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 201
only works if systems storage pools to an off-site copy pool to recover the TSM environment if a disaster (e.g., destruction of the data center) occurs. With a backup of the TSM database in a remote location, the off-site copy storage pool is a duplicate of HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 202
a disk storage pool to support co-location because this feature is unnecessary when using a diskbased backup solution. • NDMP backup: Deduplication does not currently support LAN-free NDMP with TSM. This means you can only backup an NDMP filer over the LAN to the VLS. 202 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 203
better understand the current TSM environment and help with sizing the virtual library: • This select statement will list all primary storage pools that are not DISK and show the amount of backup • Display backup totals in TB's for a 7 day period: HP StorageWorks VLS and D2D Solutions Guide 203 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 204
64 KB, assuming that the operating system is configured for variable block size supported, HP does not recommend it for virtual libraries because the performance impact on restores and deduplication. Because you can create additional drives easily in the virtual library and allocate them to Storage - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 205
NetWorker mt command. If the maximum supported block size found via the mt issue exists when EMC NetWorker uses tape library SCSI commands via activation of a Common is activated, HPUX estape driver has a problem distinguishing between EOT and BOT, thus HP StorageWorks VLS and D2D Solutions Guide 205 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 206
parameter in the NetWorker autochanger (tapes will not be deduplicated until they are ejected from the virtual tape drive). • Disable multiplexing in Oracle RMAN backups: In the VLS firmware version 3.3.0 streams per data file; removing this argument from the backup com- 206 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 207
mands sets it to the default of 1 stream per data file). The default setting for this is disabled, and most sites do not use Striped Backups with SQL Server. HP StorageWorks VLS and D2D Solutions Guide 207 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 208
208 Virtual Library Systems - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 209
6 Support and Other Resources Related Information Documents • HP StorageWorks 9000-series virtual library system user guide • HP StorageWorks 300 and 12000 Gateway virtual library system user guide • HP StorageWorks 6000-series virtual library system user guide • HP StorageWorks Enterprise Backup - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 210
Canada, call 1-800-263-5868. For HP technical support: • In the United States, for contact options see the Contact HP United States webpage (http://welcome.hp.com/country/us/en/contact_us.html). To contact HP by phone: • Call 1-800-HP-INVENT (1-800-474-6836). This service is available 24 hours a day - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 211
Element Text emphasis • File and directory names • System output • Code • Commands, their arguments, and of electrical shock hazards. The enclosed area contains no operator serviceable parts. WARNING: To reduce the risk of injury from electrical . HP StorageWorks VLS and D2D Solutions Guide 211 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 212
a hot component, allow the surface to cool before touching. WARNING! Power supplies or systems marked with these symbols indicate the presence of multiple sources of power. WARNING: To health and safety requirements and guidelines for manually handling material. 212 Support and Other Resources - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 213
between two VLS devices via LAN/WAN. See also automigration Storage area network. The HP StorageWorks Virtual Library System product line. Virtual tape library. Wide area network. Write once, read many. A characteristic of data storage media. HP StorageWorks VLS and D2D Solutions Guide 213 - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 214
214 Glossary - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 215
storage capacity cartridge sizing D2D, 59 conventions text symbols, 211 conventions, document, 210 copying data considerations, 38 to physical tape using backup application, 39 using D2D tape offload, 43 using replication, 43 using VLS automigration, 41 HP StorageWorks VLS and D2D Solutions Guide - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 216
HP storage web site, 209 StorageWorks, deduplication, 20 StorageWorks, replication, 24 Subscriber's choice web site, 210 HP Data Protector deduplication guidelines, 195 general guidelines, 194 import example script, 196 with HP Accelerated deduplication, 194 with HP virtual tape libraries - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 217
how it works, 161 implementing, 164 incremental backups, 163 initialization, 172 job control, 180 link sizing, 182 multi-node scaling, 164 preparation, 165 reporting, 176 setup, 166 with backup applications, 28 reporting Accelerated deduplication, 155 replication on the VLS, 176 HP StorageWorks VLS - HP StorageWorks 9000 | HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 218
, 33 snap and clone See business copy specifications See technical specifications storage capacity saved by deduplication, 21 Subscriber's choice, HP, 210 Symantec NetBackup with HP Accelerated deduplication, 197 with HP virtual libraries, 51 symbols in text, 211 symbols on equipment, 211 T tape See
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HP StorageWorks VLS and D2D Solutions
Guide
Design Guidelines for Virtual Tape Libraries with
Deduplication and Replication
This document describes the HP StorageWorks VLS and D2D systems and their concepts, including automigration,
deduplication, and replication, to help you define and implement your virtual tape library system. It includes
best practices for working with specific backup applications. This document is intended for use by system
administrators who are experienced with setting up and managing system backups over a SAN.
*AG306-96028*
Part number: AG306-96028
Seventh edition: March 2010