Mark Hahn wrote:
If someone would be so kind as to help me find *real* data that
demonstrates higher SATA/IDE failure rates as compared to SCSI, I would
most appreciate it.
I have only two very wimpy factoids to offer: my 70TB HP SFS
disk array (36 SFS20 shelves with 11x 250G SATA each) has had just one
bad disk since it was installed (say, March).
so that's one disk in 1.7Mhours, aggregated, actually a lower rate than
I would have expected...
I never see disks fail this way. Go unplug the array and turn it back
on. Tell me how many disk fail then. :-)
Craig
that storage is attached to 768 compute nodes, each of which has 2x80G
SATA, which I believe have had no failures (6.6Mhours!).
the hardware was all assembled and burned in quite a while
before being delivered, so this should be the bottom of the bathtub.
during some periods, machineroom temperatures have not been
exceptionally well-regulated :(
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