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Vol. 9 Num. 6 September 2010

Aging RAID still an effective protection technology

RAID has taken some knocks lately, like criticism that it's a nearly 30-year-old technology that can't stand up to the rigors of a modern data storage environment. But 96% of the respondents to our survey said they rely on some form of RAID. RAID has taken some knocks lately, like criticism that it's a nearly 30-year-old technology that can't stand up to the rigors of a modern data storage environment. But maybe it's been around so long because it's so good: 96% of respondents to our survey rely on some form of RAID. The most-used RAID configuration isn't much of a surprise, as 87% use RAID 5, followed by RAID 1 (52%) and RAID 10 (40%). Seventy-five percent of RAID users employ more than one type on RAID on their storage systems, and nearly 20% juggle four different RAID configurations in their shops. But that's not to suggest users are totally enamored with RAID, as their two biggest gripes are inefficient use of disk capacity (36%) and lengthy rebuild times (32%); however, 10% of respondents didn't see any particular ...

Features in this issue

  • Virtualizing NAS

    Companies of all sizes are being inundated with unstructured data that's straining the limits of traditional file storage. File virtualization can pool those strained resources and provide for future growth.

Columns in this issue

  • Storage vendors stacking the deck

    by  Arun Taneja

    Storage vendors have been busy creating server-to-application product stacks. It looks like the type of ploy that will give them more leverage, and take it away from you.

  • Primary storage dedupe: Requisite for the future

    by  Tony Asaro

    Tools like automated tiering and thin provisioning help users cope with growing capacity demands; but more drastic measures, like primary storage data reduction, are needed.

  • Getting in front of backup

    Learn about a handful of key technologies that can help storage managers meet their backup recovery time objectives (RTOs) by making the first steps -- data capture and transfer -- simpler and more efficient.

  • ILM lives again!

    Information lifecycle management faded into oblivion without getting serious notice. But it's back now, with a new name and more realistic goals.

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