You might want to delete DASD volumes from the system. You can do this without performing an initial program load (IPL) by performing the following steps:

1. Set the DASD volume status to DISNEW. This disables any new allocations to the volume.

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2. Move data sets that you want to keep to other volumes using DFSMSdss.

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3. Delete the DASD volume from the storage group that contains it. See Deleting DASD volumes from storage groups for information on deleting DASD volumes.

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4. Vary the DASD volume offline. See z/OS DFSMShsm Storage Administration if you need specific information about how to vary a volume offline.

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5. Issue the DFSMShsm DELVOL command from all DFSMShsm systems that are aware of the volume. This prevents DFSMShsm from attempting to allocate to the volume during subsequent interval migrations. See z/OS DFSMShsm Storage Administration if you need specific information on the DFSMShsm DELVOL command.