HP StorageWorks XP Disk/Cache Partition user guide for XP12000/XP10000 Disk Arrays and SVS 200 Part number: T1722–96010 Eighth edition: September 2007
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Contents About this guide . . . . . . . . . . . . . . . . . . . . . . . . . . Supported storage platforms and firmware Intended audience . . . . . . . . . . Prerequisites . . . . . . . . . . . . Related documentation . . . . . . . . Document conventions and symbols . . HP technical support . . . . . . . . . Subscription service . . . . . . . . . HP websites . . . . . . . . . . . . . Documentation feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 4 1 ..Example of a CLPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2 ..Example of an SLPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3 ..Partition Definition pane (initial pane or Subsystem selected) . . . . . . . . . . . . . 17 4 ..Partition Definition pane (CLPR selected) . . . . . . . . . . . . . . . . . . . . . . 19 5 ..Partition Definition pane (SLPR selected) . . . . . . . . . . . . . . . . . . . . . .
Tables 1 ..Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 ..Capacity for data in a hard disk drive associated with a CLPR and standard cache capacity 13 3 ..Command View user group permissions . . . . . . . . . . . . . . . . . . . . . . 15 4 ..XP Remote Web Console mapping to Command View users . . . . . . . . . . . . . 15 5 ..XP Remote Web Console and Command View default users . . . . . . . . . . . . . 6 ..General troubleshooting for XP Disk/Cache Partition . . .
About this guide This guide provides information about: • • • • • • Understanding XP Disk/Cache Partition Understanding partition administration and administrator rights Accessing XP Disk/Cache Partition Working with CLPRs Working with SLPRs Troubleshooting XP Disk/Cache Partition Supported storage platforms and firmware In this guide, the term array refers to the following storage platforms: • HP StorageWorks XP12000 Disk Array • HP StorageWorks XP10000 Disk Array • HP StorageWorks 200 Storage Virtualizat
• HP StorageWorks XP External Storage user guide for XP12000/XP10000 Disk Arrays and SVS 200 • HP StorageWorks XP LUN Configuration and Security Manager user guide for XP12000/XP10000 Disk Arrays and SVS 200 You can find these documents at http://www.hp.com/support/rwc/manuals/ Document conventions and symbols Table 1 Document conventions Convention Element Blue text: Table 1 Cross-reference links and e-mail addresses Blue, underlined text: http://www.hp.
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About this guide
1 Overview of XP Disk/Cache Partition HP StorageWorks XP Disk/Cache Partition enables logical partitioning of the resources in the array. HP StorageWorks XP Disk/Cache Partition contains the cache logical partition function (CLPR) and the storage management logical partition function (SLPR). The cache logical partition function enables you to partition the built-in cache memory in the array into multiple virtual cache memories.
Figure 1 Example of a CLPR To create a CLPR, allocate the parity groups to CLPR. For instructions on allocating parity groups, see Working with CLPRs. To create and manage a CLPR, you need user authority for the array. For more information about user authority, see Partition administration and administrator rights and the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.
Table 2 Capacity for data in a hard disk drive associated with a CLPR and standard cache capacity Capacity for data in CLPR to 0.7TB to 2.6TB to 8.5TB to 14.4TB to 20.3TB 20.
The virtual array created by the partitioned array is referred to as the storage management logical partition (SLPR). You can create up to 32 SLPRs, including SLPR0 which is provided as a default in one array (with the exception of the SVS200). For more information, see Creating SLPRs. Figure 2 Example of an SLPR To create an SLPR, allocate the array's resources (that is, ports and CLPRs). For instructions on allocating the array's resources, see Working with SLPRs.
• Users who have read-only access.
Overview of XP Disk/Cache Partition
2 Accessing XP Disk/Cache Partition 1. Launch Command View XP or XP Remote Web Console. 2. Click the Install button ( ). The License Key pane appears. 3. Click the Partition Definition tab. Figure 3 Partition Definition pane (initial pane or Subsystem selected) • Tree: Displays SLPRs in the array. The SLPR number and name appear to the right of the SLPR icon ( ). SLPRs belonging to a CU group other than the current CU group have this icon ( out.
NOTE: For SLPR0, the cache capacity and number of CLPRs appear as follows: • Cache capacity: Value is calculated by subtracting the capacity of the cache belonging to a CU group other than the current CU group from the cache capacity that SLPR0 has. • Number of CLPRs: Value is calculated by subtracting the number of CLPRs belonging to a CU group other than the current CU group from the number of CLPRs that SLPR0 has. Regardless of which CU group is selected, CLPR0 is added as one CLPR.
3 Working with CLPRs Figure 4 Partition Definition pane (CLPR selected) • CU: Displays the selected CU's parity groups in the CLPR resource list. NOTE: You cannot specify the number of a CU belonging to a CU group other than the current CU group. To change the CU group, use the drop-down list for CU groups in the upper right of the XP Remote Web Console main pane. For more information about CU groups, see the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200.
external LUs' capacity appears, but the RAID configuration does not appear. For a parity group containing virtual volumes, the capacity of virtual devices (VDEVs) appears, but the RAID configuration does not appear. • Emulation: Parity group's emulation type. • Information: If an LU is available with On Demand, On Demand appears. To make the LU available, use the On Demand pane.
NOTE: The remaining capacity, which is calculated by subtracting Cache LUN XP Size and Partial Cache Residence Size from Cache Size, must be 4 GB or more in CLPR0. If you changed Cache Size, Cache LUN XP Size, or Partial Cache Residence Size, verify that the capacity calculated by subtracting Cache LUN XP Size and Partial Cache Residence from Cache Size remains 4 GB or more in CLPR0.
2. Right-click an SLPR in the tree, and select Create CLPR. The CLPR is added to the tree. 3. Select a CLPR in the tree. Information about the selected CLPR appears in the Detail For CLPR section. NOTE: If a CLPR has this icon ( ) and is grayed out, you cannot select the CLPR. To change the CU group, return to step 1. 4. Change CLPR settings as needed. 5. Click Apply. The progress bar appears. NOTE: Even though you clicked Apply, the parity groups have not been allocated to a CLPR yet. 6.
Migrating parity groups in CLPRs You can migrate parity groups in a CLPR to another CLPR. NOTE: You cannot migrate parity groups to a CLPR belonging to a CU group other than the current CPLR. NOTE: Multiple parity groups that construct the concatenated parity group must belong to the same CLPR. NOTE: You cannot migrate the parity group that contains the LDEVs to which the Cache Residency cache extents is defined to another CLPR. 1.
Working with CLPRs
4 Working with SLPRs Figure 5 Partition Definition pane (SLPR selected) • Tree: Displays SLPRs and CLPRs in the array. The SLPR number and name appear on the right of the SLPR icon ( ). The CLPR number and name appear on the right of the CLPR icon ( ). SLPRs belonging to a CU group other than the current CU group have this icon ( ) and are grayed out. CLPRs belonging to a CU group other than the current CU group have this icon ( ) and are grayed out. You cannot select these SLPRs and CLPRs.
If the resource type is Port, the port name appears. • Properties: CLPR's capacity and number of parity groups allocated to the specified CLPR. NOTE: The number of parity groups for CLPR0 is calculated by subtracting the number of parity groups belonging to CU groups other than the current CU group from the total number of parity groups that CLPR0 has. • Information: Channel adapter name, if the resource type is Port.
NOTE: If a customized volume (CV) is set using the Customized Volume function, and the CU number and SSID are registered to different SLPRs, a dash (-) appears to the right of the SSID. For more information, see the HP StorageWorks LUN Configuration and Security Manager XP user guide for the XP12000/XP10000/SVS200. • From: Starting number of the SSID added to the specified SLPR (0004 to FFFE). You can enter an SSID that is in SLPR0. • To: Last number of the SSID added to the specified SLPR (0004 to FFFE).
2. On the License Key Partition Definition pane, allocate licenses for software products to the SLPR (see the HP StorageWorks Command View XP Advanced Edition Device Manager Server installation and configuration guide or the HP StorageWorks XP Remote Web Console user guide for XP12000/XP10000/SVS200). NOTE: If software product licenses have not been allocated to an SLPR, the user assigned to the SLPR cannot use the software products.
NOTE: To create multiple SLPRs, repeat step 2. 3. Select an SLPR from the tree (see Figure 5). NOTE: If an SLPR has this icon ( ) and is grayed out, you cannot select the SLPR. To change the CU group, return to step 1. 4. Change the SLPR's settings as needed. 5. Click Apply. A progress bar appears. NOTE: Even though you clicked Apply, the resources (CLPRs and ports) have not been allocated to an SLPR yet. 6. To allocate resources (CLPRs and ports) to an SLPR, perform one or both of the following: a.
NOTE: If an SLPR has this icon ( ) and is grayed out, you cannot select the SLPR. To change the CU group, return to step 1. 3. Click Apply. The progress bar appears. Migrating an SLPR's resources You can migrate CLPRs and ports that are managed in an SLPR to another SLPR. NOTE: You cannot migrate CLPRs and ports to an SLPR belonging to a CU group other than the current SLPR. NOTE: You can migrate only Target ports to another SLPR. You cannot migrate Initiator, RCU Target, and External ports.
NOTE: You must select an SLPR that has this icon ( ) and black characters for the destination SLPR. NOTE: The LUN0000 and LUN0001 belonging to the NAS-Sys host group must belong to the same SLPR as the NAS port. LUNs from LUN0005 to LUN000A in the NAS system LU must belong to SLPR0. 5. Click Apply to apply settings. The progress bar appears. Displaying error messages If settings contain a discrepancy, an error message appears when you click Apply.
Working with SLPRs
5 Troubleshooting Table 6 provides general troubleshooting instructions for XP Disk/Cache Partition operations. Table 6 General troubleshooting for XP Disk/Cache Partition Error Corrective Action All XP Disk/Cache Partition functions cannot be performed. If you logged on to Command View XP or XP Remote Web Console as the storage partition administrator to use XP Disk/Cache Partition, you cannot perform any functions. To use XP Disk/Cache Partition: 1. Log on as the storage administrator. 2.
Error Corrective Action LUSE volume A parity group that is administrated in a CLPR migrated to another CLPR. The LUSE volume associated to the parity group administrated in a CLPR is set across multiple CLPRs. Check the settings, migrate the entire LUSE volume to the CLPR to which the parity group migrated, if necessary. A port in High Speed mode The port in an SLPR migrated to another SLPR. You are trying to allocate ports in a port block in High Speed mode to multiple SLPRs.
6 Notes, restrictions, and requirements This chapter provides additional information about using SLPRs and CLPRs. CLPRs • When creating a partition, the partition's license keys are disabled by default. Use the License Key Partition Definition pane to enable license keys for the new partition. Basic license keys include XP Web Console and Java® API. Both are required to enable the Web GUI for new partitions. • Adding or changing a CLPR definition can take several hours.
• Mainframe volumes must be allocated to SLPR0. • Before a customized volume (CV) is created, the StorageAdmins user must allocate CU numbers to the SLPR. Allocated CU numbers are required only for defining the CU number to be allocated to the LDEV when the StorageAdmin user creates a CV.
Index A accessing XP Disk/Cache Partition, 17 administering SLPRs, 27 administrator rights, 14 arrays, virtual, 13 audience, documentation, 7 C cache logical partitions.
W websites HP documentation, 9 HP storage, 9 HP Subscriber's Choice for Business, 9 38
