SMS and MERGE

MERGE processes DSNINDEX records of SMS data sets like all other DSNINDEX records that contain 1999.365 in their EXPDATE field. In other words, since SMS managed data sets have 1999.365 specified; SMS managed data sets are considered never expire for MERGE processing. It is IXMAINTs responsibility for the expiration or the deletion of SMS data sets.

MERGE does, however, use the last restore date to determine the number of level 1 days non-used. This determination is used in the merging forward process.

The SMS field that CA Disk supports is as follows:

Level 1 Days Non-usage (MC) This optional field can be defined 0 to 9999, NOLIMIT, or blank. The default is 60. When this field is defined with a number other than 0 (see the section SMS and ARCHIVE in the chapter "Backup/Archive" for more information about 0), that number of days must pass since the last Restore/Recover access from a disk archive of the data set before the data set is eligible for merge to tape (level 2). When this field is defined NOLIMIT, the data set remains on disk archive (level 1). When this field is defined with a blank, other MERGE command parameters will be used to process the data set.