Thanks Rob, one comment below.
Rob Logan wrote:
perhaps these are good picks:
5 x (7+2) 1 hot spare 35 data disks <- best safety
5 x (8+1) 1 hot spare 40 data disks <- best space
9 x (4+1) 1 hot spare 36 data disks <- best speed
1 x (45+1) 0 hot spare 45 data disks <- max space
This one stretches the models a bit. In one model, the MTTDL is
~1200 years and in a more detailed model, it is 6 years. Most
people will be very unhappy with an MTTDL of 6 years. To put
this in perspective, a 46-disk RAID-0 has an MTTDL of less than
2 years in all models.
I'd like to hear from the ZFS team how such a wide stripe would
be expected to perform :-)
-- richard
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