Numerous performance improvements have been incorporated in Unicenter CA-View r11 tape processing.
- Backup tapes no long contain Tape Marks to separate reports. IBM-3590 and STK-9840 Tapes Drives synchronize the physical tape with their internal buffers when a Tape Mark is written. This can cause delays when writing smaller reports to the Backup Tape. Removing the separating Tape Marks allows CA-View to utilize the full write performance capabilities of these high density tape drives. (This enhancement was also available as an apar in Unicenter CA-View release 2.0.)
- Unicenter CA-View no longer issues Read Block Id on every write to the tape. The Read Block Id is only issued when the data's location must be known. This change improves tape performance over the 3590 Tape Enhancement Apar available in release 2.0.
- Backup tapes are no longer restricted to 65,535 reports. An increase in the size of the Sysout position field within the various control records allows Unicenter CAView to use the full capacity of a high density drive.
- Backup tapes are no longer restricted to only a primary and duplex tape. Unicenter CA View now has the capability to create a disaster recovery tape. In previous releases, many sites could not take advantage of the full capacity of high density tapes due the disaster recovery requirement to off-site the duplex tape. With Release 11.0, a separate disaster recovery tape can be created by both the Backup Cycle and the Tape Consolidation Utility (SARPAC) which can be taken off site. Each new backup cycle and/or tape consolidation run will create a new disaster recovery tape without regard to the number of cycles defined for the primary/duplex tapes. The primary and optional duplex tapes can continue to be reused to stack additional backup cycles. These tapes can be used at a remote location in the same manner as the standard primary and duplex tapes.
- New backup reports and utilities have been implemented to support disaster recovery tapes and the Sysout Selection Panel has been changed to indicate that a report is on primary/duplex or primary/duplex/DR Tape.
- Support has been added for WORM (Write Once-Read Many) tape drives. This new tape technology provides a secure non-destructible data media and can be used with both the Backup Cycle and the Tape Consolidation Utility (SARPAC).