When Fast Archive processing is enabled, CA Disk can reuse existing backups or archives to back up a data set with no data movement. CA Disk checks the data set to determine whether it has been modified. The product uses the same variables since the most recent Archive/Backup that the Modified criteria uses. When an eligible data set is found, a new DSNINDEX record is created using a new Archive/ Backup date and time. The ARCHVOL information from the existing DSNINDEX record is flagged as a FAST record. The ARCHVOLS record and tape expiration are updated to keep the longest expiration date but not all dates are compatible. The new Fast Archive DSNINDEX record is kept until IXMAINT expires it and merges forward if processed by Merge. All copies of the DSNINDEX are treated as different versions for Restore and IXMAINT processing.
Note: Verify that Sysparm DSNDUPVL is set to Y if you are using volume pooling. Setting DSNDUPVL to Y prevents the older DSNINDEX versions from being selected.
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