On 1.5.2011 08:52, Alexander Farber wrote: > Hello Mark and others, > > On Thu, Apr 28, 2011 at 10:21 PM, <m.roth-x6lchVBUigD1P9xLtpHBDw@xxxxxxxxxxxxxxxx> wrote: >> At this point, I'd run the long test on each drive, and (after coming back >> an hour or two later, see the results. > > I have that dreadly warning again - > > /etc/cron.weekly/99-raid-check: > WARNING: mismatch_cnt is not 0 on /dev/md0 This does not mean necessarily mean that something is wrong. Writes are not occuring at exactly the same time, there is a short timespan where data is written to disk A but not yet to disk B. So it is possible that 2 mirrored blocks hold different data. http://marc.info/?l=linux-raid&m=117555829807542&w=2 http://marc.info/?l=linux-raid&m=117304688617916&w=2 https://bugzilla.redhat.com/show_bug.cgi?id=566828 > By the "long tests" do you mean some Linux command > I could run while booted in "rescue mode"? $ smartctl -t long /dev/sdX No need for rescue mode. -- Kind Regards, Markus Falb
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