HP StoreOnce B6000 HP StoreOnce Backup System Concepts guide
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- HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 1
for resources. The information in this guide is valid for both single-node and multi-node StoreOnce Backup Systems. IMPORTANT: The English version that is available on the web at launch may have later updates. Always check http:// www.hp.com/support/manuals for the most up-to-date documentation - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 2
Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 3
NAS and Virtual Tape Library targets 6 Connecting to the HP StoreOnce Backup System 6 Multi-node systems...6 Multi-node terminology...7 Node...7 Couplet...7 Cluster...7 VIF...7 B6000 Management Console 7 CLI...7 Failover/Resilience ...8 Service set...8 Network and FC cabling guidelines 8 Network - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 4
...41 Glossary...42 About this guide 46 Intended audience...46 Related documentation...46 Document conventions and symbols 46 HP technical support...47 Customer self repair...47 Registering your HP StoreOnce Backup System 47 Subscription service...47 HP websites...47 Documentation feedback...48 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 5
to the HP StoreOnce Backup System (page 6) • Multi-node systems (page 6) • For more information (page 9) Overview The HP StoreOnce Backup System is a disk-based storage appliance for backing up host network servers or PCs to target devices on the appliance. These devices are configured as either - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 6
2 HP StoreOnce Backup Systems part numbers G3 G2 (single node) HP B6000 StoreOnce Backup System EH985A -- HP D2D4324 • EJ021A - Base HP B6000 rack with single couplet • EJ027A - Expansion HP B6000 rack with single couplet • EJ022A/EJ023A - expansion couplets • EJ024A/EJ025A - capacity upgrade - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 7
configuration tasks function at cluster level. A fully expanded cluster consists of two racks with two couplets in each rack. VIF The HP B6000 Backup System IP address and an associated VIF that relates to the service set running on that node. Should the physical port fail, data will be processed - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 8
configurations for each rack in a two-rack system FC restrictions • HP B6000 Backup System supports switched fabric topologies only. • Direct attach (private loop) and direct attach (point-point) topologies are not supported topologies. • The preferred topology for the HP StoreOnce Backup System - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 9
that are supported. For information about using the Web Management Interface to configure and monitor devices, refer to the HP StoreOnce Backup System user guide. For information about using the Command Line Interface commands, refer to the HP StoreOnce Backup System CLI reference guide. For more - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 10
has one tape drive. Libraries provide considerable storage capacity and full support for tape rotation strategies. (It may be necessary to upgrade your backup application to support libraries.) Emulation types The HP StoreOnceD Backup System supports a wide range of library and drive emulation types - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 11
single backup job is to run at a time. This emulation type is widely supported by backup applications. NOTE: This emulation type is not supported on HP B6000 run. (This feature can be disabled.) When you configure your HP StoreOnce Backup System with a tape library, the drive emulation type that - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 12
StoreOnce Backup System, configure 250 devices on the HP D2D4312 or D2D4324, you will not be able to configure NAS shares. See also Flexible emulation (page 13). Table 3 Maximum number of libraries and drives per G3 B6000 appliance Max libraries Max drives per library Max devices per appliance node - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 13
is not supported on any HP StoreOnce Backup System.. A switched fabric topology utilizes one or more fabric switches to provide a flexible configuration between several Fibre Channel hosts and Fibre Channel targets such as HP StoreOnce Backup Systems. Switched fabric configurations are implemented - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 14
keep the HP StoreOnce Backup System free from discovering disk controllers which it doesn't need to see. For optimal performance, where practical, dedicate HBAs for disk and tape. NOTE: Overlapping zones are supported. VTL devices on an Ethernet network (not HP B6000) Each emulated backup device is - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 15
. Data from each host goes to its corresponding iSCSI library. • Each backup device is visible only to the host for which it has been configured. • A host may have multiple devices configured for it on the HP StoreOnce Backup System, but this means fewer hosts may be connected (not illustrated). The - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 16
is working correctly and check the integrity of the replicated backup by doing a test restore • To perform manual tape copy jobs to a tape device on the network using the backup application See the HP StoreOnce Backup System user guide for more information about using this feature. 16 Virtual Tape - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 17
the HP StoreOnce Backup System user guide for more information about using the Web Management Interface to create and configure NAS shares as targets for backup applications. Refer to the UNIX and Linux Configuration Guide for more information about the NFS interface. Backup application support NAS - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 18
allowed per appliance. Across the whole HP StoreOnce Backup System the number of simultaneously open files is as follows: Table 6 Maximum number of files G3 B6000 products Max files per share Max Total Open files per appliance Max Open files >24 MB per appliance node (couplet) 25000 640 (1280) 192 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 19
data stored significantly. Figure 3 Data stored after deduplication The importance of the Index files As a backup stream arrives at the HP StoreOnce Backup System the and the HP StoreOnce Backup System Data deduplication is applied per library device or share. When you configure the library or - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 20
capacity by eliminating duplicate data • Reduces disk expenditures by reducing storage space required. You can get more backups for each host on the same size of storage (HP StoreOnce following table illustrates how this affects the space required to store the data over 25 weeks. The figures are used - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 21
9 Data deduplication savings, example 1 (continued) 3rd daily incremental backup 50 GB 4th daily incremental backup 50 GB 5th daily incremental backup 50 GB 2nd weekly full backup 500 GB 3rd weekly full backup 500 GB 25th weekly full backup 500 GB TOTAL 12,750 GB Figure 4 Space saving - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 22
physical IP addresses of the target and source StoreOnce Backup Systems. • In a multi-node StoreOnce Backup System, the appliance is the service set that contains the data to be replicated. This means that each B6000 Backup System has at least two service sets that can be selected as appliances. All - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 23
not visible to the host, unless you configure devices to make it visible. See the HP StoreOnce Backup System user guide for more information. Once you have set up a replication configuration between Source and Target HP StoreOnce Backup Systems, it is initiated automatically whenever a cartridge is - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 24
but Replication-Target libraries are not visible to the host, unless you configure devices to make it visible. See the HP StoreOnce Backup System user guide for more information. A single HP StoreOnce Backup System may host both Replication-Source and Replication-Target shares and libraries and can - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 25
supported from that Source Appliance (the HP StoreOnce Backup System that HP B6000 Series Each HP B6000 Source Appliance can replicate to up to eight Target Appliances per node. This equates to 16 Target Appliances per couplet or 64 Target Appliances with the maximum four-couplet configuration. HP - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 26
four Target Appliances. Each HP D2D 4312 Series Source Appliance can replicate to up to eight Target Appliances. Each HP D2D 4324 Series Source Source Appliances that are supported. HP B6000 Series • Each HP B6000 Target Appliance can support up to 50 Source Appliances per node. • This equates to - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 27
Data Center. Figure 8 HP D2D250x Series Fan IN example HP D2D4xxx Series • Each HP D2D4004/4009 or HP D2D4106 Target Appliance can support up to 16 Source Appliances. • Each HP D2D4112 Target Appliance can support up to 24 Source Appliances. • Each HP D2D4312 Target Appliance can support up to 50 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 28
HP D2D4100 and 4300 Series would be able to support all 20 NAS shares, because of the one-to-one mapping. • Remote Site 1 and Remote Site 4 each have one D2D Appliance and are running 4 projects. They have configured backed up data; for example, common operating system files. • Remote Site 2 has two - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 29
all the slots in a library. For example, if you have weekly full backups and daily incremental backups, you may decide to only replicate the slots that contain the full backups. You make this selection when you configure replication in the Web Management Interface and it is called a slot mapping - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 30
target appliance Maximum number of concurrent replication jobs from a source appliance Per node (couplet) 8 (16) 48 (96) 1 (2) 16 (32) 16 job concurrency rules, G2 products HP D2D 2502/2504 Appliance Fan Out Maximum number of 2 Target appliances supported by one Source appliance Appliance - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 31
of D2D2502: 4 16 24 Source appliances D2D2503: 6 supported by one D2D2504: 8 Target appliance Library Fan Out HP StoreOnce Backup System. The HP StoreOnce Backup System in Office A is being used by the host server for backup and restore and the shares and libraries that have been configured - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 32
on another library on the HP StoreOnce Backup System in Office B. Two of those cartridges are configured to replicate to a Replication-Target library on the HP StoreOnce Backup System in Office A. A replication license is required for both HP StoreOnce Backup Systems. Figure 11 Active to active - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 33
HP StoreOnce Backup System. NOTE: The Replication license can only be used on the model for which it was purchased. For example, the Replication License for a D2D250x Series can only be used on a D2D250x Backup System. It cannot be used on any of the B6000 or D2D4xxx Backup Systems - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 34
node systems: The unique HP StoreOnce Backup System serial number (found on the label on the top of the unit) • Multi-node systems: The cluster ID, which can be found via the B6000 See the HP StoreOnce Backup System user guide for information about using the Replication wizard to configure mappings - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 35
will need to open (TCP) ports 9387 (Command protocol) and 9388 (Data protocol) to allow the replication traffic to pass to and from the HP StoreOnce Backup Systems. If necessary and the D2Ds conflict with another device on the network, these ports can be changed from the defaults when you create the - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 36
to the host server. Before the failure a mapping existed between a Source Share or Library on the remote site StoreOnce Backup System and a Target Share or Library on the Data Center StoreOnce Backup System. After the failure the Source Share or Library is missing; the mapping may or may not still - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 37
: This configuration is possible in only limited situations because it will break any other backups or replications to the Data Center appliance. In a simple Active-Passive scenario, however, this may be a very good model. IMPORTANT: If you replace the disks in the source StoreOnce Backup System and - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 38
is deleted from the StoreOnce Backup System (e.g a virtual cartridge HP D2D4106 appliance would need approximately 30 minutes of quiescent time over the course of the next 24 hours to run housekeeping in order to de-reference data and reclaim any free space. What do I need to do? Configuring backup - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 39
. See the HP StoreOnce Backup System user guide for details. For more information This is a complex subject. We strongly recommend that you read HP D2D Backup Systems best practices for VTL, NAS and Replication implementations that is available on http:www.hp.com/ support/manuals for more detailed - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 40
placed on the HP StoreOnce Backup System. The following is a very brief overview of factors to be considered. We strongly recommend that you read HP D2D Backup Systems best practices for VTL, NAS and Replication implementations that is available on http:www.hp.com/support/ manuals for more detailed - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 41
To be avoided • Do not delete and eject cartridges • Avoid housekeeping jobs during backup • Avoid running a lot of small incremental backups To be avoided 41 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 42
on a Windows network. The HP StoreOnce Backup System supports this interface for connecting to NAS targets from a Windows network. The cluster is the overall configuration of servers within the StoreOnce Backup System. It consists of between one and four couplets installed in B6000 racks. There is - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 43
iSCSI initiator. For more information about iSCSI, see the HP StoreOnce Backup System Installation and Configuration Guide. Linux and UNIX users should also refer to the Linux and UNIX Configuration Guide on the HP StoreOnce Backup System CD-ROM for more information. L Library library is a Virtual - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 44
traffic is minimized. See also the HP StoreOnce Backup System Concepts Guide. The service set is the set of services that run upon a node. These include NAS, VTL, Replication and other services. The physical storage capacity of the HP B6000 StoreOnce Backup System is scalable from 32 TB to 512 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 45
. B6000 and G2 HP StoreOnce Backup Systems do not support direct export to tape. Tape rotation strategies determine when backups are HP StoreOnce Backup System Concepts Guide for example configurations. Virtual Tape Devices are backup targets on the HP StoreOnce Backup System to which the backup - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 46
single-node products. HP StoreOnce installation and configuration guide: there are separate guides for the HP B6000 multi-node product and the G2/G1 single-node products. You can find these documents from the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 47
more information about CSR, contact your local service provider. For North America, see the CSR website: http://www.hp.com/go/selfrepair Registering your HP StoreOnce Backup System Once you have installed and tested your HP StoreOnce Backup System please take a few minutes to register your product - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 48
://www.hp.com/go/storage • http://www.hp.com/service_locator • http://www.hp.com/support/manuals • http://www.hp.com/support/downloads Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, please send a message to [email protected] - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 49
B6000 Management Console, 6 B6000 network guidelines, 8 backup targets, 5 C capacity license, 33 CIFS, 17 CIFS share maximum users, 18 CLI, 7 cluster, 7 comparing NAS and VTL, 6 compression deduplication, 20 configuration HP website multi-node systems, 6 N NAS backup application support, 17 - HP StoreOnce B6000 | HP StoreOnce Backup System Concepts guide - Page 50
8 source appliance, 24 source appliance permissions, 23 StoreOnce Backup System definition, 5 StoreOnce key processes, 40 Subscriber's Choice, HP, 47 symbols in text, 46 T tape rotation example, 20 target appliance, 24 technical support HP, 47 service locator website, 47 text symbols, 46 topologies
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HP StoreOnce
Backup System Concepts Guide
Abstract
If you are new to the HP StoreOnce Backup System, read this guide before you configure your system. It describes the StoreOnce
technology and advises how to plan the workload being placed on the HP StoreOnce Backup System in order to optimize
performance and minimize the impact of deduplication, replication and housekeeping operations competing for resources.
The information in this guide is valid for both single-node and multi-node StoreOnce Backup Systems.
IMPORTANT:
The English version that is available on the web at launch may have later updates. Always check
h
t
tp://
w
w
w
.hp
.co
m/su
ppo
r
t/man
uals
for the most up-to-date documentation for your product.
HP Part Number: EJ022-90904
Published: September 2011
Edition: 2