HP Surestore E Disk Array XP256 HP XP P9000 External Storage Access Manager Us
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- HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 1
HP XP P9000 External Storage Access Manager User Guide Abstract This manual provides instructions and information for setting up, using, and maintaining External Storage Access Manager on the P9500 storage systems. HP Part Number: AV400-96579 Published: July 2013 Edition: Seventh - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 2
contained herein is subject to change without notice. The only warranties for 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 shall not be liable - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 3
Contents 1 External Storage Access Manager overview 7 How ESAM works...7 ESAM components...8 P9500 storage systems...8 Main and remote control units 9 Pair volumes...9 Data paths...9 Quorum disk...9 Multipath software ...9 Remote Web Console GUI 10 RAID Manager (RAID Manager 10 Data replication - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 4
Workflow...24 Configuring the quorum disks 24 Prerequisites...24 Procedure...24 Adding the ID for the quorum disk to the storage systems 25 Prerequisites...25 Procedure...25 Configuring host mode options 26 Prerequisites...26 Procedure...26 4 Working with volume pairs 27 Workflow for ESAM volume - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 5
path failures 65 Allowing host I/O to an out-of-date S-VOL 66 7 Using ESAM in a cluster system 67 Cluster system architecture...67 Required software...67 Supported cluster software...67 Configuration requirements ...68 Contents 5 - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 6
troubleshooting procedures 70 Troubleshooting general errors 70 Suspended volume pair troubleshooting 72 The workflow for troubleshooting suspended pairs when using Remote Web Console 72 Troubleshooting 75 9 Support and other resources 76 Contacting HP...76 Subscription service...76 - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 7
1 External Storage Access Manager overview ESAM ensures high availability of host applications used in P9500 (P9500) storage systems. ESAM provides protection against the loss of application availability when input and output (I/O) failures occur in the primary storage system by automatically - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 8
(P9500) and another storage system on the primary and secondary sites. The primary storage system consists of the main control unit (MCU) and service processor (SVP). The secondary storage system consists of the remote control unit (RCU) and SVP. The primary storage system communicates with the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 9
two data paths are needed; however, HP requires a minimum of two in each direction for greater support and security of the data. A maximum of eight data paths in each direction are supported. Therefore, the maximum number of logical paths between any two storage systems is sixteen (eight forward and - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 10
You run commands from a command device on the host. Disaster recovery operations use a mix of RWC and RAID Manager. Data replication ESAM supports data sharing between the following volumes: • A volume in the primary P9500 system and a volume in secondary P9500 system. • Volumes in external storage - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 11
information, see the HP XP P9000 Continuous Access Synchronous User Guide. • Follow all of the ESAM requirements and recommendations. specific to ESAM. NOTE: HP strongly recommends that you contact Global Solutions Services for assistance in the planning and configuration of your HP system. Required - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 12
between the two. Using two independent switches provides redundancy in the event of failure in one. • Secondary storage system cache should be configured to support remote copy workloads, as well as any local workload activity. • Cache and non-volatile storage (NVS) must be operable for both the MCU - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 13
be set using LUN Manager. For instructions, see the HP XP P9000 Provisioning for Open Systems User Guide. • If you are storing data in an external volume or volumes, make sure the external volumes are mapped to the primary or secondary storage system they support - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 14
by External Storage can be used for the quorum disk. see the HP XP P9000 External Storage for Open and Mainframe Systems User Guide for a list of supported external systems. NOTE: If the ESAM pair is created between P9500 and XP24000, the quorum disk must be located in an external storage system - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 15
• Direct and switch connections are supported. • Use target ports in the primary and RWC is in Modify Mode. For more information, see the HP XP P9000 Remote Web Console User Guide. External storage systems You can use HP storage systems, original equipment manufacturer (OEM) storage systems, and - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 16
used to store pair data. For supported external systems, see the HP XP P9000 External Storage for Open and Mainframe Systems User Guide. • You can connect one performs the following checks to detect failures: • The RCU issues service information messages (SIMs) when the data path is blocked. The - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 17
. Same as when option 48 is OFF. For more information about setting host mode options, see the HP XP P9000 Provisioning for Open Systems User Guide. Sharing volumes with other HP software products ESAM volumes can be used as volumes for other HP software products, such as Business Copy or Virtual - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 18
Table 2 Volume types that can be shared with ESAM volumes Product Volumes LUN Manager Volume where an LU path is defined Volume where no LU path is defined Volume where LUN security is applied Open Volume Management Customized Volume volume System disk LUN Expansion LUSE volume Volume - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 19
Cache Residency With Cache Residency, you can improve data access performance by storing the ESAM data in the storage system's cache memory. Performance Monitor • Performance Monitor is used to monitor usage or performance of the storage system. You can also show statistical I/O data of ESAM and - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 20
Configurations with Continuous Access Journal volumes You can use the ESAM S-VOL as a Continuous Access Journal (Cnt Ac-J) P-VOL. This configuration benefits the ESAM pair if data in the P-VOL and S-VOL become inconsistent due to a disaster. In this case, you can recover the data from the split Cnt - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 21
3 System configuration The ESAM system configuration process is the first main task in the process of setting up the ESAM system. It follows the planning of the system implementation and is based on the outcome of the system implementation planning effort. All of the configuration procedures must be - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 22
Prerequisites Before you begin, make sure you have: • Completed the system implementation (see "System implementation planning and system requirements " (page 11)). The workflow for connecting the hardware components Use the following process to connect the hardware components for a ESAM system: 1. - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 23
correct steps to install the software, refer to the installation instructions in the following documentation during the installation process: • The documentation for the multipath software. • The HP XP P9000 Remote Web Console User Guide. • The HP XP P9000 RAID Manager Installation and Configuration - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 24
. • Details about external path groups in the HP XP P9000 External Storage for Open and Mainframe Systems User Guide. Prerequisites Before you begin, make sure you have: • Installed the multipath and system software (see "Installing and configuring software" (page 22)). Workflow Use the following - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 25
- Cache mode: This parameter is not used for quorum disks. Either Enable or Disable can be specified. - Inflow control: Select Disable. Data will be written in the cache memory. - CLPR: If you partition cache memory, specify the CLPR that the quorum disk uses. - LDKC:CU:LDEV number: The number is - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 26
where the executing node and standby node reside. For more information on host mode options, see the HP XP P9000 Provisioning for Open Systems User Guide. 26 System configuration - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 27
Working with volume pairs A number of tasks must be performed on volume pairs as part of your normal ESAM system maintenance activities, when troubleshooting system issues, or when taking action to recover from failure. Workflow for ESAM volume pairs You perform several different types of tasks with - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 28
1. When a volume is not in an ESAM pair, its status is SMPL. 2. When you create an ESAM pair using SMPL volumes, the status of the P-VOL and the S-VOL changes to COPY while the system copies the data. 3. A stable synchronized pair has the status PAIR. 4. When you split a pair, the status of the P- - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 29
notifications, you can monitor those particular events remotely. When a pair is in PSUS, SSWS, or PSUE status, the primary storage system generates SIMs (service information messages). You can check SIMs in RWC's Alerts window. How hosts see volume pairs When you create an ESAM pair, the host sees - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 30
Pair status values When checking pair status in RWC, click File/Refresh to verify that the data is current. In RWC, the pair status is shown in the [pair status in Remote Web Console/pair status in RAID Manager] format. If the pair status name in RWC and the pair status name in RAID Manager are the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 31
Pair Status VOL Access Description Access to -PVOL S-VOL P-VOL S-VOL P-VOL S-VOL status)" (page 32) Blank Blank Blank Access (Lock) After the status of the S-VOL was Not forcibly changed to SSWS, you ran accessible the pairsplit-RB command to rollback. After a rollback, do not access - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 32
The following table describes pair status in RAID Manager. Item SMPL COPY PAIR PSUS SSUS PSUE PDUB SSWS Description The volume is not assigned to an ESAM pair. The initial copy for an ESAM pair is in progress, but the pair is not synchronized yet. The initial copy for an ESAM pair is completed, - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 33
of an entire initial copy operation when the pairs are resynchronized. For descriptions of suspend types and the troubleshooting steps to resolve them, see "Suspended volume pair troubleshooting " (page 72). Volume pair creation A volume pair consists of primary and secondary volume whose data is - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 34
• The initial copy parameters you specify during the procedure cannot be successfully changed after a pair is created. If you attempt to change or delete them, the Pair Operation window and Detailed Information dialog box shows misleading and inaccurate information. • If you are creating multiple - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 35
number, such as 15, copying is faster, but I/O performance of the storage system may decrease. If you specify a small number, such as 3, copying is slower, but the impact on I/O performance is lessened. 10. From the Priority drop-down menu, select the scheduling order for the initial copy operations - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 36
2. Check path configuration to the P-VOL and S-VOL using the multipath software command on the host. Set the owner and non-owner paths to the P-VOL. For more information about the multipath software commands, see the documentation provided with the multipath software. The following figure shows an - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 37
Procedure 1. Access the MCU or RCU in RWC, then click Actions > Remote Copy > Continuous Access Synchronous > Pair Operation. You do not need to vary the P-VOL offline. 2. Make sure that you are in the modify mode. 3. In the Pair Operation window tree, select the CU group, CU, port, or host group - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 38
secondary storage system S-VOL becomes the P-VOL; the primary storage system P-VOL becomes the S-VOL. The pairresync -swaps command is the only supported method for reverse resynchronizing ESAM pairs. Prerequisites Make sure that: • All errors are cleared. • Pair status is SSWS. Procedure 1. Run the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 39
Releasing a pair You can release a pair when you no longer need to keep the P-VOL and S-VOL synchronized. You can release a single pair or multiple pairs using the same procedure. When you release a pair from the P-VOL, the primary storage system stops copy operations and changes pair status of both - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 40
10. Verify that the operation completes successfully (changes to SMPL status). 11. The device identifier for one or both pair volumes changes when the pair is released. Therefore you should enable host recognition of the volumes, using one of the following methods: • Run the device recognition - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 41
• When running RAID Manager commands on the S-VOL, make sure that you specify S-VOL information in the scripts. The following table shows the supported RAID Manager commands and corresponding RWC tasks. Type of task Configuration Pair operations Task Add the quorum disk ID. Create a pair. RAID - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 42
Type of task Task RAID Manager command RWC window or dialog box Split a pair. Resynchronize a pair. Resynchronize a pair (reverse direction). pairsplit -r pairresync pairresync -swaps pairresync -swapp Pairsplit-r dialog box Pairresync dialog box N/A Maintenance Swap & suspend a pair. - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 43
RWC. Related documentation For more information about other system maintenance tasks, see the HP XP P9000 Continuous Access Synchronous User Guide. The different types of maintenance tasks The following tasks can be performed. • "Switching paths using multipath software " (page 43) • "Discontinuing - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 44
NOTE: During the procedure, you must delete the external volume mapping of the quorum disk. If the ESAM pair is still connected to the disk, you cannot delete the mapping. To ensure you can delete the mapping, before you delete the mapping, make sure you disconnect the quorum disk by running the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 45
and secondary storage system, make sure that the ID is correctly deleted. If you deleted the wrong ID, register the ID again. 5. Call the HP Support Center and ask them to turn OFF the system option. Recovery of accidently deleted quorum disks If you forcibly deleted a quorum disk by mistake, you - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 46
4. On the primary and secondary storage system, add the quorum disk ID. 5. On the primary storage system, create the ESAM pair. 6. On both the primary and secondary storage systems, make sure that Type shows ESAM. Recovering the disk when the S-VOL was receiving host I/O at deletion Use this - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 47
You can use a single procedure to perform a planned outage on: • A quorum disk • A primary storage system and the quorum disk connected to it • A secondary storage system and the quorum disk connected to it • A primary and secondary storage system and the disk connected to them The procedures for - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 48
Performing outages when the S-VOL is receiving host I/O Use this procedure when the S-VOL is receiving host I/O updates. If you also need to power off and on the primary or secondary storage system connected to the disk, use one of the other procedures (see "The procedures for performing planned - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 49
9. On the secondary storage system, complete the following: 1. Run the following External Storage command on the quorum disk: Reconnect External Volumes 2. Run the following command on the S-VOL: pairresync -swaps 3. Make sure that P-VOL and S-VOL status is PAIR. 10. Using the multipath software, - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 50
8. Using multipath software, vary the non-owner path online. Performing planned outages (both storage systems and quorum disk) Use this procedure to perform a planned outage of the primary storage system, the secondary storage system, and the disk connected the systems. 1. On the primary storage - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 51
or stop functioning. System components typically affected by these types of failures include: • Main control unit (primary storage system) • Service processor (primary or secondary storage system) • Remote control unit (secondary storage system) • Volume pairs • Quorum disks The basic recovery - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 52
NOTE: You need to determine the type of failure before you can determine which recovery procedure to use. For more information, see "Using system messages to check for failures". • "Using Remote Web Console to check for failover" (page 52) • "Using RAID Manager to check for failover" (page 52) • " - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 53
Determining which basic recovery procedures to use Determining which basic recovery procedures to use involves analyzing the information in the system information messages (SIM) and path failure system messages to identify the type of failure, then selecting the correct procedure based on the type - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 54
the original relationship of the volumes, and restoring normal host I/O. NOTE: If the failed volume is an external volume, contact the HP Support Center for assistance clearing the failure. You use multipath software and either RWC or RAID Manager to complete the recovery procedure. TIP: Some - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 55
the original relationship of the volumes, and restoring normal host I/O. NOTE: If the failed volume is an external volume, contact the HP Support Center for assistance clearing the failure. You use multipath software and either RWC or RAID Manager to complete the recovery procedure. TIP: Some - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 56
restoring the original relationship of the volumes, and restoring normal host I/O. NOTE: If the failed volume is an external volume, contact the HP Support Center for assistance clearing the failure. You use multipath software and RWC to complete this task. 1. Make sure that I/O is stopped. 2. Using - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 57
failures, host I/O is not interrupted and failover does not occur. NOTE: If the failed volume is an external volume, contact the HP Support Center for assistance clearing the failure. 1. Using multipath software, make sure that the primary storage system is receiving host I/O. 2. Using multipath - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 58
When you replace a disk, data on the disk is erased and you cannot continue using ESAM. CAUTION: To prevent host I/O from stopping, make sure you complete the steps exactly as they are listed in the procedure. 1. Use the multipath software to vary the non-owner path offline. 2. On the primary - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 59
5. Perform one of the following operations: • If using the RAID Manager to change the Continuous Access Synchronous pair to an ESAM pair on the primary storage system: Run the RAID Manager horctakeover command on the S-VOL. This reverses the relationship of the pair. • If using RAID Manager to - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 60
Recovering the system when the RCU is receiving host I/O updates Recovering the primary storage system from power failure, when host I/O updates continue after failover, involves the completion of tasks on both the primary storage system and secondary storage system. Because failover occurred, you - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 61
1. Verify that the P-VOL has the latest data by opening the Pair Operation window on the secondary storage system (S-VOL side) and checking that the VOL Access column is empty (blank). 2. On the secondary storage system, release the ESAM pairs. 3. On the secondary storage system, delete the quorum - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 62
TIP: Some of the steps can be performed using either RWC or RAID Manager. Typically, you can complete these steps quicker using RAID Manager. 1. Verify that the S-VOL has the latest data by opening the Pair Operation window on the primary storage system (P-VOL side) and checking that the VOL Access - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 63
Determining which resynchronization recovery procedure to use Determining which recovery procedure to use involves analyzing the information in the system information messages (SIM) and path failure system messages to determine if all of the conditions required to use resynchronization exist, then - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 64
Procedure 1. 2. Analyze the failure messages to determine if all conditions required for resynchronization exist: • The ESAM volumes are not blocked. • If there was a quorum disk failure, the disk does not need to be replaced. • Data was not lost as a result of shared memory initialization caused - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 65
For more information, see "Determining which resynchronization recovery procedure to use" (page 63). Procedure 1. Using multipath software, vary the owner path offline. 2. Swap and suspend the ESAM pair using the pairsplit -RS command. 3. Swap and suspend the Continuous Access Journal pair using the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 66
might need to use the S-VOL to continue host operations, even though its data is older than the data on the P-VOL. Contact the HP Support Center and ask to have the appropriate system option turned ON. This enables the S-VOL to receive host I/O. NOTE: The system option applies to the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 67
Software that uses a SCSI-2 Reservation with the hypervisor platform, Virtual Machine File System 5 (VMFS 5). • Cluster software. Supported cluster software ESAM supports the following types of cluster software: Software Microsoft Failover Cluster (MSFC) PowerHA (HACMP) 5.4.1 SP7 Operating systems - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 68
the HP XP P9000 Provisioning for Open Systems User Guide. 7. Create the ESAM pairs. NOTE: If software. If necessary, contact the HP Technical Support. Disaster recovery in a cluster system Use software, see the software's documentation for recovery instructions. 3. Use the software to fail back from - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 69
pair volumes for SAN boot. • You cannot store OS page files in ESAM pair volumes. • For Windows Server® 2008 R2, ESAM does not support Hyper-V function and Cluster Shared Volumes (CSV) function. • If using software with SCSI-2 Reservation, and SCSI-2 Reservation is registered on the P-VOL, a pair - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 70
messages and error codes that are displayed by RWC, see the HP XP P9000 Remote Web Console Messages. Basic types of troubleshooting procedures The troubleshooting procedures you use to resolve issues you encounter depend on whether the error type. The main error types are general errors, suspended - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 71
error. generated. Check the SIM, then call the HP Support Center. After you have corrected the problem, retry the operation. • If no SIM is generated, and SVP, see the HP XP P9000 Remote Web Console User Guide. There is a pinned track on an ESAM volume or the Troubleshooting general errors 71 - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 72
troubleshooting The troubleshooting procedures Manager The workflow for troubleshooting suspended pairs when the troubleshooting steps based on table lists the troubleshooting steps to use for Failure S-VOL 72 Troubleshooting Error Corrective action The HP Support Center and follow the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 73
suspended volume pairs when using RAID Manager include: • Using the RAID Manager operation log file to identify the cause of the error. • Following the troubleshooting steps based on the SSB1 and SSB2 error codes (the codes are recorded in the log file). Location of the RAID Manager operation log - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 74
RAID Manager and the steps involved in troubleshooting the errors. Error code (SSB1) HP XP P9000 Provisioning for Open Systems User Guide. An ESAM pair cannot be created because of one of the following conditions: • ESAM does not support the pairsplit -rw command. • The operation cannot be accepted - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 75
Related topics For more information about troubleshooting other types of errors, see the HP XP P9000 Continuous Access Synchronous User Guide. Recovery of data stored only in cache memory When a hardware failure occurs while the storage system is running, data in cache memory may not be - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 76
• HP XP P9000 Remote Web Console Messages • HP XP P9000 Remote Web Console User Guide You can find these documents on the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals In the Storage topic, click Disk Storage Systems for hardware or Storage Software for - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 77
websites: • http://www.hp.com • http://www.hp.com/go/storage • http://www.hp.com/service_locator • http://www.hp.com/support/manuals • http://www.hp.com/support/downloads • http://www.hp.com/storage/whitepapers Conventions for storage capacity values HP XP P9000 disk arrays use the following values - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 78
in damage to equipment or data. IMPORTANT: Provides clarifying information or specific instructions. NOTE: Provides additional information. TIP: Provides helpful hints and shortcuts. Rack a time. Racks can become unstable if more than one component is extended. 78 Support and other resources - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 79
A Conventions This appendix describes phrases in this manual that correspond to phrases in the Remote Web Console windows and messages. Business Copy and Snapshot Web Console main window and secondary window, see the HP XP P9000 Remote Web Console User Guide. Business Copy and Snapshot volumes 79 - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 80
related to ESAM systems also shown in the following windows and is documented in the HP XP P9000 Continuous Access Synchronous User Guide: - The RCU Operation window - The Usage Monitor window - The History window - The System Option window - The Quorum Disk Operation window Pair Operation - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 81
file to review the progress of your ESAM operations. For more information about this snapshot function, see the HP XP P9000 Continuous Access Synchronous User Guide. Shows the settings to be saved to the system when you click Apply. You can change or delete the settings by right-clicking. Saves the - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 82
Item S/N(LDKC) ID Paired VOL Description Navigator and the pair status name in RAID Manager are the same, the pair status name in RAID Manager is not shown. For more information, see the table of "Pair status values" (page 30). Serial number of the paired storage system. SSID of the paired storage - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 83
Pair status of P-VOL Pair Status of S-VOL VOL access of P-VOL VOL access of S-VOL Online volume SSWS Access (No Lock) Blank Any* Access (Lock) Blank Any* PSUS Access (No Lock) Blank Any* Access (Lock) Blank Any* PDUB PDUB Access (Lock) Blank P-VOL * The S-VOL pair status is - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 84
Indicates the volume is a Thin Provisioning virtual volume. For more information about virtual volumes, see the HP XP P9000 Provisioning for Open Systems User Guide. • Emulation type. • Capacity in MB (to two decimal places). • The number of blocks. The CLPR number and name of the local volume. Host - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 85
in the row below. Refresh Updates the information. Close Closes the dialog box. Paircreate(ESAM) dialog box Use this dialog box to create a pair. For instructions, see "Creating an ESAM pair " (page 33). Pair Operation window 85 - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 86
Indicates the volume is a Thin Provisioning virtual volume. For more information about virtual volumes, see the HP XP P9000 Provisioning for Open Systems User Guide. The port number, GID, and LUN for the pair's S-VOL. Port number entered directly can be specified with two characters, for example, 1A - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 87
name. Pairsplit-r dialog box Use this dialog box to split a pair. For instructions, see "Splitting pairs " (page 36). Item Volume S-VOL Write Suspend Kind virtual volumes, see the HP XP P9000 Provisioning for Open Systems User Guide. Disable appears. The S-VOL of this pair will reject the write - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 88
For more information about virtual volumes, see the HP XP P9000 Provisioning for Open Systems User Guide. P-VOL Fence Level Not used for ESAM, Never is default, meaning P-VOL is never this dialog box to release a pair. For instructions, see "Releasing a pair" (page 39). 88 ESAM GUI reference - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 89
the volume is a Thin Provisioning virtual volume. For more information about virtual volumes, see the HP XP P9000 Provisioning for Open Systems User Guide. • Yes: The pair is released even if the primary storage system cannot communicate with the secondary storage system. • No: The pair is released - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 90
Preview. When clicked, saves changes. When clicked, cancels changes. Add Quorum Disk ID dialog box Use this dialog box to add a quorum disk ID. For instructions, see "Adding the ID for the quorum disk to the storage systems" (page 25). 90 ESAM GUI reference - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 91
Item Quorum Disk RCU Description Where the external volume to be used as a quorum disk is selected. Where the paired CU is selected. The list shows the RCU information registered in CU Free. Multiple RCUs with the same serial number and controller ID, but different path group IDs, appear as one RCU - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 92
. Essentially, LUSE makes it possible for applications to access a single large pool of storage. Main control unit. A general term describing any of the supported OPEN emulation modes (for example, OPEN-E). There are two types of OPEN-x devices: legacy OPEN-x devices with a fixed size (such as OPEN - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 93
depends on the number of supported I/O slots and the number of ports available per I/O adapter. The P9000 and XP family of disk arrays supports Fibre Channel (FC) ports Service information message. Simplex. Service processor. A computer built into a disk array. The SVP, used only by an HP service - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 94
pairs, 39 resync pairs, 37 split pairs, 36 H hardware required, 11 setup, 21 help obtaining, 76 host recognition of pair, 35 HP technical support, 76 I initial copy, 33 interoperability;sharing volumes, 17 L LDEV requirements, 13 license capacity, 12 licenses required, 12 logical paths max, min - HP Surestore E Disk Array XP256 | HP XP P9000 External Storage Access Manager Us - Page 95
ESAM, 23 hardware requirements, 11 power on/off procedure, 46 primary, secondary requirements, 12 T technical support HP, 76 service locator website, 77 text symbols, 78 troubleshooting general errors;, 70 suspended pairs;, 72 using RAID Manager, 73 typographic conventions, 77 V VOL Access explained
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HP XP P9000 External Storage Access
Manager User Guide
Abstract
This manual provides instructions and information for setting up, using, and maintaining External Storage Access Manager on
the P9500 storage systems.
HP Part Number: AV400-96579
Published: July 2013
Edition: Seventh