The CA Disk volume-level recovery function will overlay the entire volume in extent track order, or a specified range of absolute tracks on the volume. It is invoked from RECOVER processing through the VRECOVER command.
VRECOVER uses the volume-level backup data set identified in the DSNINDEX as DMSOS.Vvolser. CA Disk generates this name automatically.
A volume-level recovery must use a target volume that is the same device type as that from which the volume-level backup was taken. However, a single-density 3380 can be recovered to a double- or triple-density 3380, and a double-density 3380 can be recovered to a triple-density 3380. In such cases, the VTOC will be updated to invoke system routines to recalculate the free space.
If the data on the volume-level backup is compressed, it will be decompressed during VRECOVER processing using the CA Disk-supplied techniques.
Note: See Track Overflow Datasets for a description of alternate processing required to restore these data sets.
If you use the UPDATE parameter on the VRECOVER command and there is a catalog on the volume being recovered, specify the sysparm CATBKDEL with a value of Y. This allows the most current version of the catalog to be restored.
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