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I remember standing with a few people discussing a RAID failure of this kind and asking each person how it could have happened. All of them could explain the be
by scandox 7y ago
I remember standing with a few people discussing a RAID failure of this kind and asking each person how it could have happened. All of them could explain the benefits of RAID 5 for the specific application but not one of them could explain its failure modes.
- jldugger 7y agoThat's just one of many. Another good one is the violent failure mode. We had a RAID 6 go bad because a head crashed hard, hard enough that two other disks in the array also head crashed. Since the enclosure puts them pretty much lines them up, this is kinda inevitable.
- blackflame7000 7y agoWow, was that an IBM Deathstar? Two additional reasons for raid 6: 1. Fan failure on a hard disk pod causes damage to multiple drives simultaneously. 2. Many adjacent drives are connected via the same power cable which always has the potential to destroy drives in groups via over-voltage from a failing power supply.