HP XP P9000 for Compatible PAV Software Licenses - Manual (Page 11)

3 Performing Parallel Access Volumes operations
This chapter describes performing Parallel Access Volumes operations on the storage system using
the GUI.
Assigning aliases to base volumes
Up to 255 aliases can be assigned to one base device. If the number of selected free volumes is
larger than the number of selected base volumes, the Parallel Access Volumes function attempts to
allocate the free volumes equally to the base volumes. For example, if six free volumes and two
base volumes are selected, three free volumes (aliases) are allocated to each base volume.
If you only use Hyper Parallel Access Volumes to issue I/O requests to a CU, first decide the number
of aliases that are necessary for the CU, and then assign the aliases to arbitrary base volumes.
The assigned aliases function as aliases for all base volumes in that CU. In this case, assign three
or less alias devices for each base device.
If you want to assign aliases to more than one CU that is used by the host, you should click Apply
whenever you assign aliases to one CU. If you click Apply only once to assign aliases simultaneously
to more than one CU, the host performance may degrade.
Prerequisites
•
Parallel Access Volumes option or Hyper Parallel Access Volumes option is enabled in Remote
Web Console.
•
You must have the Storage Administrator (Provisioning) role to perform this task.
•
Base devices are defined in the storage system.
To assign aliases to base volumes in the P9500:
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 (shown in the following figure), select the LDKC which
includes the CU image to be modified from the LDKC list.
4. From the CU list, select the CU image which contains the desired base volumes.
Assigning aliases to base volumes 11