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Access "Backup to Disk for Better Restore"

Published: 17 Oct 2012

Times sure have changed for disk backup. When IBM and StorageTek first started selling virtual tape--disk systems that emulate a tape resource--the goal was to improve backup windows and tape utilization. By inserting a disk staging area between a backup server and a tape library, maybe you'd be able to back up more servers simultaneously, and lay out backup images on the media more efficiently. But disk's role in backup may be changing. Last month, when EMC announced its Clariion Disk Library (DL), Chuck Hollis, EMC vice president of platform marketing, went to great pains to paint Clariion DL as distinct from virtual tape. Whereas virtual tape "is focused on helping your backup window, [Clariion DL] is about "improving your time to restore," he says. However, not all backup software supports disk's role as a restore enhancer. According to Chris Van Wagoner, director of product marketing at backup software maker CommVault, most backup software is built on "the philosophical underpinning that disk is a short-term staging area for backup before it gets moved ... Access >>>

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