HP XP P9000 for Compatible Parallel Access Volume User Guide (AV400-96479, August 2012)

Prerequisites
• Before an alias is reassigned, the user must confirm that the number of requests to the base
device that the alias is moved from is less than 50 IOPS. This performance information is
acquired using RMF (Resource Measurement Facility Report Analysis) or other available tools.
If the alias is reassigned when there are more than 50 IOPS to the base device, the process
performance may decline in the worst cases.
• You must have the Storage Administrator (Provisioning) role to perform this task.
Procedure 3 To reassign aliases to a different base volume:
1. In the Remote Web Console main window, select Actions > Mainframe Connection > Parallel
Access Volumes.
2. Click to change to Modify mode.
3. In the Parallel Access Volumes window, select the LDKC that includes the CU image to be
modified from the LDKC list.
4. From the CU list, select the CU image that contains the aliases to be reassigned.
5. Select the base volume(s) in the Base Volume List. Press Ctrl and click to select multiple base
volumes, press Shift and click to select a series of base volumes, or click Select All to select
all base volumes in the CU image. Alias volumes for each selected base volume(s) appear in
the Alias Volume List.
6. Select one or more alias volumes to remove in the Alias Volume List. Press Ctrl and click to
select multiple alias volumes, press Shift and click to select a series of alias volumes, or click
Select All to select all alias volumes in the CU image.
7. When one or more alias volumes are selected, click Delete to remove the selected alias
volume(s) from the selected base volume(s) and move these alias volumes back to the Free
Volume List.
8. Select different base volume(s). These base volumes can be in the same CU image. Or, the
CU image can be changed by using the LDKC and CU lists.
9. When one or more new base volumes are selected in the Base Volume List and one or more
free volumes are selected in the Free Volume List, click Add to assign the selected free volume(s)
to the selected base volume(s). The assignments appear in the Alias Volume List.
10. Confirm the alias volume(s) assigned to the selected base volume(s) in the Alias Volume List.
11. Click Apply to apply the changes.
Calculating Parallel Access Volumes used capacity
After each Parallel Access Volumes operation, the Parallel Access Volumes Used Capacity value
is recalculated. These operations include:
• Assigning aliases to a new base volume and clicking Apply
• Canceling all aliases in the corresponding CU and clicking Apply
NOTE: A base volume with no assigned aliases does not contribute the total used capacity
value.
• Uninstalling base volumes using the VLVI/LUN (VLL) or External Storage software
• Assigning aliases to a new base volume by Dynamic Parallel Access Volumes or Hyper Parallel
Access Volumes function
14 Performing Parallel Access Volumes operations