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Forum Discussion
Raid5 Failures HDD MTBF XRaid2 Raid6 Dual Redundancy
Why Raid5(Single Redundancy) is not enough and why Raid6(Dual Redundancy) is better. I was reading this with interest some time ago ..http://www.usenix.org/events/fast07/tech/schroeder/schroeder_ht...
Raid5 Failures vs Raid6 Raid7 XRaid2 Dual Triple Stripe with Parity Redundancy
Does RAID 6 stop working in 2019?
http://storagemojo.com/2010/02/27/does-raid-6-stops-working-in-2019/
Triple-Parity RAID and Beyond http://queue.acm.org/detail.cfm?id=1670144
Does RAID 6 stop working in 2019?
http://storagemojo.com/2010/02/27/does-raid-6-stops-working-in-2019/
Late 2009 Sun engineer, DTrace co-inventor, flash architect and ZFS developer Adam Leventhal, analyzed RAID 6 as a viable data protection strategy.
He lays it out in the Association of Computing Machinery’s Queue magazine, in the article Triple-Parity RAID and Beyond.
The good news: Mr. Leventhal found that RAID 6 protection levels will be as good as RAID 5 was until 2019.
The bad news: Mr. Leventhal focussed on enterprise drives whose unrecoverable read error (URE) spec has improved faster than the more common SATA drives.
SATA RAID 6 will stop being reliable sooner unless drive vendors get their game on.
Triple-Parity RAID and Beyond http://queue.acm.org/detail.cfm?id=1670144
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