Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx> wrote on Fri, 31 Jan
2014 13:14:12 GMT:

But, if you have 1 parity set of 24 drives, you can only lose
1 and keep running, correct? With 3 parity sets of 8 drives,
you could theoretically lose 3 drives and still be running. I
say "theoretically" because the 3 failures would have to be 1
drive in each of the 3 parity sets as opposed to any 3 random

Correct. The loss of 1 drive in a parity set enables you to
keep running. The loss of a 2nd drive in a RAID5 parity set
gives you the opportunity to reload your data. This why we
recommend hot spare to start the rebuild at the earliest
possible moment or RAID6.

This thread ...


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