Make a disk pool unavailable

You can select an independent disk pool to make it unavailable (vary it off).

You can select an independent disk pool to make it unavailable (vary it off). You cannot access any of the disk units or objects in the independent disk pool or its corresponding database until it is made available (varied on) again. The pool can be made available again on the same system or another system in the recovery domain of the cluster resource group.

Important: Before an independent disk pool can be made unavailable, no jobs can hold reservations on the disk pool. See Release job reservations on an independent disk poolfor details on determining whether jobs are using an independent disk pool and how to release the job reservations.

When making a UDFS disk pool unavailable using iSeries™ Navigator, messages might be generated that require a response in the character-based interface. iSeries Navigator will not provide any indication that a message is waiting.

To make an independent disk pool unavailable:

In iSeries Navigator, expand My Connections (or your active environment).
Expand the iSeries server that is the primary node .
Expand Configuration and Service.
Expand Hardware.
Expand Disk Units.
Sign on to service tools if the Service Tools Signon dialog box is displayed.
Expand Disk Pools.
Right-click the disk pool you want to make unavailable and select Make Unavailable.
From the dialog box that displays, click Make Unavailable to make the disk pool unavailable.

You can use the Vary Configuration (VRYCFG) command in the character-based interface to make the disk pool unavailable.

Start of change Use the Display ASP Status (DSPASPSTS) command to identify where a step is in the process. End of change

Start of change Use the Control ASP Access (QYASPCTLAA) API to restrict the processes that have access to the ASP. End of change

Start of change Use the Start DASD Management Operation (QYASSDMO) API to reduce the amount of time it takes to make a disk pool unavailable. End of change