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November 15, 2007

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keith carlsen

Our operational system is all SUN Unix. Backup system consists of a StorageTek LTO tape robot and Veritas Netbackup software. Initially backups are written to disks in the Netbackup server and subsequently the backups on the disks are written to tape. Advantages are that even if the robot runs out of blank tapes, backups can still run if there is sufficient space left on the disks. Also, restores of recent data occurs quickly since it's likely there's still a backup up on the disk. Only admin necessary is monitor for errors, and pumping blank tapes into the robot (which requires ejecting some full tapes to make room for the blanks). And restoring old data may require retrieving tapes from the tape cabinet for insertion into robot.

keith carlsen

Our operational system is all SUN Unix. Backup subsystem consists of a StorageTek LTO tape robot and Veritas Netbackup software. Backups are initially written to disk array on the Netbackup server. Backups are subsequenty written from the disk array to tape in the robot. Advantages are that backups can still run if there are not blank tapes in the robot so long as there is still space on the disks. Restores of recent data occurs quickly since there is likely still a copy of the data on the disk. Only admin required is to monitor for errors, and pump blank tapes into the robot (which may require ejecting full tapes to make room). And restore of old data may require retrieving tapes from the tape drawers for insertion into the robot.

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