Incremental backups and MAX_VERSIONS for SVCDTA

When you configure SAN Volume Controller Dynamic target allocation, you can choose to run incremental backups. When the maximum number of backups as defined by MAX_VERSIONS is reached for a device class with FLASHCOPY_TYPE INCR, the oldest backup is deleted just before the new backup is taken. This new backup refreshes the INCR FlashCopy relation of the previous deleted backup.

For more information about device class settings, see Device class backup version retention.