On Fri, 01 Nov 2013 13:59:40 +0100 Jack Wang <xjtuwjp@xxxxxxxxx> wrote: > Hi Neil and all, > > Is there anyway to know: > > 1. How often does a raid start to resync? Look at your logs? > 2. How many bytes did it resync? Look at "mismatch_cnt" in sysfs (and multiply by 512). NeilBrown > > If not, for the first one, I think we cound add field into mddev like > resync_counter, increase when resync done, and annother field into > md_rdev to track how many bytes synced to the outdated disk? > > Regards, > Jack
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