Group restore

Restoring VSAM groups rebuilds the VSAM file clusters for the files within the group from each file’s current backup. Files in groups are restored in parallel provided that the memory resources and file resources are available.

VSAM group restore operations are not synchronized. The latest backup of each file is used, regardless of the source. For example, SMS backups may be used for some files, while RUV backups can be used for other files in the group. If you want to restore a data set from a backup that is not the current backup, you must use the individual VSAM File restore command, where a BACKUP_IN can be named. Also, you can temporarily update the group definition to exclude the file, restore the group, and then add the file back into the group.