Storage spending report


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iSCSI deployments increasing

Compliance plans take shape


Protecting data differently
The creep toward using disk for compliance is seemingly an echo of the very clear message respondents sent about disk and backup (see

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Disk-based backup growth continues). With 54% of those surveyed increasing their disk-to-disk (D2D) backup and 24% maintaining D2D backup purchases, the approach is clearly becoming mainstream. Backup to disk and then to tape continues to be respondents' favored approach (48%), with backup to disk and archive to tape and file system backup also popular. Despite many products and hype, virtual tape and WORM disk continue to be the least-favored approaches (12% and 7%, respectively), except for single-instance storage (2%), which is the newest and least productized approach.

The fact that two-stage disk/tape approaches are dominating users' deployments is also reflected in respondents' choice of vendors for disk-based backup. The two most common respondent choices were "Don't have one" and "Other" (40% and 20%, respectively), vs. EMC Corp.'s 17% (the top vendor mention) and single digits for every other vendor. Clearly, users are still looking for vendors to step up to the plate in this category.

Other signs point to more change within the data protection environment. For example, 21% of respondents say they've implemented some form of continuous data protection, with another 10% indicating they'll implement it, and 41% evaluating or planning to evaluate products in that category (see New technologies extend networks).

The combination of disk and storage networking is also widening the focus of data protection from a local to a wide-area activity. For the first time, remote replication has outstripped offsite tape storage as the primary focus of disaster recovery (DR) spending (46% to 44%). While many respondents (38%) indicate that they won't spend anything on remote mirroring in 2005, 43% are increasing their spending on the technology vs. 33% who are increasing spending on offsite tape. While tape may still be the main medium for DR activities, remote mirroring and other disk-based techniques are definitely gaining ground.

This was first published in June 2005

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