May 8, 201313 yr So I pre-cleared my drives, and formatted them. Then fired off the parity sync... I've got a bunch of writes on the parity disk... is that OK?
May 8, 201313 yr Absolutely -- you're doing a parity sync, so it's got to write EVERY byte on the parity disk
May 8, 201313 yr Author ha! i thought since everything is ad 0's the parity is already all set. Okay. i guess we can mark this as Solved. lol
May 8, 201313 yr Now clear your stats, and run a correctly parity check. This time you should NOT see any writes, since parity should already be correct
May 8, 201313 yr ha! i thought since everything is ad 0's the parity is already all set. Okay. i guess we can mark this as Solved. lol Pre-Clearing sets a pre-clear signature and zeroes an entire disk so that when it's added as a new data disk, the parity computation isn't changed (i.e. if you're adding up a longitudinal parity, a zero doesn't change the result). But that's definitely NOT how the parity disk needs to start off
May 8, 201313 yr Author Now clear your stats, and run a correctly parity check. This time you should NOT see any writes, since parity should already be correct actually had an accidental shutdown from console without stopping array - so let the parity check run after reboot, and indeed no writes. mostly reads.
May 8, 201313 yr I presume it completed with 0 errors -- right? e.g. something like "... Last checked on Tue May 8 12:34:56 2013 CDT, finding 0 errors."
May 8, 201313 yr Author I presume it completed with 0 errors -- right? e.g. something like "... Last checked on Tue May 8 12:34:56 2013 CDT, finding 0 errors." yup!
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