February 2, 201412 yr Hi everyone I am running stock 5.0.5 without any plugins, on 9 HDs (mixed 2tb, 1.5tb and 1tb) during a parity check, I found it odd that the reported number of reads for each HD vary wildly between HDs of the same size one 1TB HD had 10x more reads than the other. 100gb free on one, 70gb free on the other I imagine larger HDs must have more reads on a parity check, but same sized HDs should have the same number of reads right? all HDs are seagate, but their models vary both 1tb are attached to the same sas 1068-e controller can anyone explain this behavior?
February 3, 201412 yr This is normal. On older controllers without support for AHCI the # of reads will be the same for all drives of the same size; but on modern controllers they will vary quite a bit. Nothing to worry about.
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