storage.itworld.com - Storage Tip: RAID 6 to Replace RAID 5

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Title	Storage Tip: RAID 6 to Replace RAID 5
Type	Tip
Source	storage.itworld.com 11/14/2006
Summary	What seems to be the problem? The introduction of RAID technology has been a boon that made the use of open systems storage for a wide range of business applications (including mission-critical) practical. To continue to harp on a subject that has been discussed previously, RAID is great, but only one failure can safely be tolerated. Enterprises run a risk during the time that it takes to rebuild an array after a disk failure. That risk is having a much longer downtime than can be tolerated with today's 24X7 applications to rebuild from tape if a second disk fails. Multiple-parity RAID is the solution. RAID 6 is the currently most popular implementation of multiple-parity RAID. continue

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