18 Oct
2011
18 Oct
'11
5:07 p.m.
On Tue, Oct 18, 2011 at 11:05 AM, Arun Khan knura9@gmail.com wrote:
btw, dont think that these issues dont affect hardware raid - they do. its just that the management for these things is slightly more abstracted away and the controllers are better integrated with the disk cages.
About 10 years ago, I had a h/w raid controller go bad (HDDs connected via SCSI cable - no HDD bays involved). The replacement card recreated the RAID array - lost all data. I did have a back up to restore most of the data.
I don't think anything is immune to failure. Another fun case is a randomly-bad memory bit causing different things to be written to software raid mirrors. I had one that took 3+ days of running memtest86 to catch.
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Les Mikesell
lesmikesell@gmail.com