Buttons; Setting (Creating) A Cache Extent - HP StorageWorks XP10000 User Manual

• Start: The starting address for data that will reside in the cache. This is expressed as a logical block
address for open systems and as a cylinder and head address for mainframe systems.
• End: The ending address for data that will reside in the cache. This is expressed as a logical block
address for open systems and as a cylinder and head address for mainframe systems.
NOTE: If you specify the VMA volume, and it has not been set for Cache LUN XP yet, the next LBA of
LBAs for the VMA appears in the Start box.
• Select All Area: If you select this check box, all data areas in the selected LDEV will be set to Cache
LUN XP cache.
This check box can be selected if no data areas in the selected LDEV are set to Cache LUN XP cache.
This check box cannot be selected and is grayed out if some data areas in the selected LDEV are set to
Cache LUN XP cache. If you select the Select All Area check box, nothing will be set to the starting
address and the ending address, and the Start and End fields remain empty.
• Available Cache LUN Size): Displays the size you can set. Bind displays the size you should set for bind
mode and Prio displays the size you should set for priority mode.
• Multi Set / Release: Selecting this check box and then clicking Set displays the Multi Set pane, which
you can use to make Cache LUN XP settings on more than one LDEV. Selecting this check box and then
clicking Release displays the Multi Release pane, which you can use to cancel Cache LUN XP settings
on more than one LDEV.
Data that will reside in the Cache LUN XP cache is specified by the starting address in the Start field
and the ending address in the End field. When the Select All Area check box is selected, all data areas
of the selected LDEVs will be set for the Cache LUN XP.
If you cancel the settings, all the settings specified for the LDEV will be canceled.
The Multi Set / Release check box does not select and cancel an individual Cache LUN XP data area
specified for the LDEV. You must use the Release button to cancel an individual Cache LUN XP data
area.
If you select the VMA volume from the LDEV tree in the Cache LUN XP panel, only volumes for which
VMA is set are displayed in the Multi Set /Release panel. If you select a non-VMA volume, only
volumes for which VMA has not been set are displayed in the Multi Set/Release panel.

Buttons

• Set: Creates a cache extent.
• Release: Deletes a cache extent.
• Apply: Applies the parameters to the disk array. You can then set or release other cache extents.
• Cancel: Cancels the operation.

Setting (creating) a cache extent

1. In the LDEV tree of the Cache LUN pane, click the CU:LDEV number of the LDEV you want to put in
cache.
The LDEV table displays Cache LUN XP information for the LDEV you selected.
2. Select an area to be made resident in the Cache LUN XP cache from one of those marked "-" in the
Mode column. The Set button is enabled. The From and To boxes display the selected area's values.
3. Click Bind or Prio to indicate the mode.
4. Click Yes or No to indicate whether to set pre-staging.
5. Complete one of the following steps:
• To place all data on an LDEV into cache, go to
• To place specific data from an LDEV into cache, go to
• To place all data on multiple LDEVs into cache, go to
• To place specific data from multiple LDEVs into cache, go to
6. To place all data on an LDEV into cache:
a. Select the Select All Area check box.
18 Cache LUN XP for the XP10000/XP12000
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