So we have two problems: the backup takes about 13 hours (so the backup finishes during business hours), and it...
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will soon no longer fit on one tape. We consider backup very important, but don't want to needlessly spend a lot of money. Would disk backup be recommended, or should we move to a distributed system (utilizing our current technology)?
Now in terms of storage capacity, there are a few options to consider. Disk backup is definitely a way to address single tape media capacity issues, but you will have to give some thought to your off-site storage requirements (vaulting). Another option is to upgrade you current tape technology to Ultrium II, which offers 200 GB of native capacity (400 GB at 2:1 compression). Second generation Ultrium drives are also backward-compatible with Ultrium 1 media so you can access longer retention backups or archives. A small, automated tape library would also be a way to address media capacity while reducing the need for manual intervention and media handling.
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