Attach Independent Disk pool
An independent disk pool can be moved from one partition and attached to another partition that is in a single-system environment.
A partition in a single system environment is a stand-alone partition. The attach independent disk pool operation locates disk units from an independent disk pool that are connected to a stand-alone partition, and updates the partition to accept the independent disk pool into the configuration. The independent disk pool can then be varied on which allows programs to access the data in the independent disk pool
- The partition must be in a single system environment. That means the partition cannot be a node in a device domain.
- The partition cannot have any independent disk pools that are configured when the attach independent disk pool operation is performed.
- Multiple independent disk pools cannot be attached to the partition unless it is a disk pool group. A disk pool group is a single primary disk pool and all of the secondary disk pools that are associated with the primary.
Copy an independent disk pool and attach it to a stand-alone partition
To use the data in an independent disk pool that is configured on a node in a cluster without corrupting or changing the data in the production disk pool, the disk pool can be copied and attached to a stand-alone partition.
- Use the copy-services utility to FlashCopy all of the disk units in the independent disk pool.
- On the stand-alone partition that receives the copy of the independent disk pool, run the Configure Device Auxiliary Storage Pool (CFGDEVASP ASPDEV(*ALL) ACTION(*PREPARE)) command to prepare the system configuration for the attachment of the disk units that contain the copy of the independent disk pool. This command deletes any independent disk pools that are currently configured.
- IPL the system to complete the preparation.
- Assign the FlashCopy disk units to the stand-alone node.
- Run the attach independent disk pool operation from Dedicated
Service Tools (DST) or System Service Tools (SST).
- Select Work with disk units.
- Select Work with disk unit recovery.
- Select Detect attached IASP disk units. The Confirm attach IASP disk units screen is displayed. This screen shows the independent disk pool and the units in the disk pool.
- If the disk pool and units that are displayed are correct, press enter to run the function.
- Vary-on the independent disk pool.
- Run jobs that use the data in the independent disk pool.
