Computer Associates BABNWUP900NE6 Administration Guide - Page 153
Retensioning a Tape, Compressing Data, Ejecting Media, Rebuilding Media
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The Device Manager Long Erase A Long Erase completely removes all data from media. It takes much longer than a Quick Erase, but the media is completely blank. For security reasons, if you want to make sure that the data on the media is erased completely, use Long Erase. Retensioning a Tape Use the Retension option to make sure a tape is evenly wound and properly tensioned to avoid errors, jamming, or breaking. You should retension a tape if you are having trouble writing to it or reading from it. Note: This feature applies only to quarter inch cartridge tapes. Compressing Data If your tape drive supports compression, you can tell BrightStor ARCserve Backup to turn it on. The only time you should turn it off is if you plan to use this tape in another drive that does not support compression. This is because the drive that does not support compression will not be able to read the compressed data on the tape. Important! You can only change compression when a blank tape is in the drive. This prevents mixing of uncompressed and compressed data on a tape. Ejecting Media Use the Eject Media option to eject media from a storage device. If you are using a library drive and the library is highlighted, it will eject the media in all of the drives. If you select a particular storage device, it will only eject from that drive. Important! This task can only be used if the storage device supports this feature. Rebuilding Media Note: This option applies only to RAID devices. This Rebuild option rebuilds a lost or damaged media. BrightStor ARCserve Backup will rebuild the target media. Managing Devices and Media 7-5