On Sun, Jan 27, 2013 at 08:26:56PM +0100, Wolfgang Denk wrote: [...] > # cat /sys/block/md0/md/mismatch_cnt > 362732152 > > > This is with mdadm v3.2.6 (mdadm-3.2.6-7.fc18.x86_64); except for the > huge values of mismatch_cnt, I see no other indications for errors on > the disk drives, RAID arrays or the file systems on top of these. > > Is this some known (and hopefully harmless), issue, or must I worry > about our data? [...] Hi Wolfgang, I would shamelessly suggest to try "raid6check", in order to see if some components have problems. The software is somehow buried into "mdadm" source code, probably you'll need to take it from the repository. Hope it will help, bye, -- piergiorgio -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html