6 notes, restrictions, and requirements, Clprs, Slprs – HP StorageWorks XP Remote Web Console Software User Manual

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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. To minimize the amount of time
required when moving cache from one CLPR to another, create partitions when the array's workload
is light.

HP does not recommended the following operations with CLPRs:
• Creating a LUSE volume extending over multiple CLPRs. If performed, you cannot use volumes

belonging to the CLPRs to which the LUSE is set as a Continuous Access XP or TrueCopy for
z/OS® pair volume.

• Business Copy XP Quick Restore operations affecting multiple CLPRs.
• Auto LUN XP manual migrations affecting multiple CLPRs.

If you perform Continuous Access XP Asynchronous or TrueCopy for z/OS Asynchronous operations,
and allocate volumes that extend over multiple CLPRs to the same consistency group, you cannot
create a pair.

If you perform Continuous Access XP Asynchronous or TrueCopy for z/OS Asynchronous operations,
you can allocate only Continuous Access XP Asynchronous or TrueCopy for z/OS Asynchronous
pairs belonging to the same CLPR to one consistency group. Parity groups allocated to the CLPR
that these Continuous Access XP Asynchronous or TrueCopy for z/OS Asynchronous pairs belong
to cannot migrate to another CLPR.

Continuous Access XP - Journal data volumes and journal volumes do not need to belong to the
same CLPR. All journal volumes in one journal group must belong to the same CLPR. Data volumes
in one journal group must belong to the same CLPR.

The following CU groups are for mainframe volumes: CU40-7F, CU80-BF, and CUC0-FE. Therefore,
you cannot use these CU groups for some program products. For more information about whether
or not you can use all CU groups, see the user guide for each program product.

SLPRs

Ports being assigned to an SLPR should not have existing host groups and LUNs assigned to them.
Assign LUNs and define host groups after the partition is created.

Assign LUNs for an SLPR from array groups that are assigned to control units (CUs) that have been
assigned to that SLPR. The StorageAdmin for a partition can only allocate from array groups
belonging to the StorageAdmin's assigned partition.

HP does not recommend making settings on multiple SLPRs in a single operations because it results
in more complex and difficult SLPR administration.

If an administrator forces the following functions for multiple SLPRs and contradictions occur as a
result, the StorageAdmin user‘s ability to use the SLPR is affected:

XP Disk/Cache Partition user guide

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