[Beowulf] Surviving a double disk failure
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Orion Poplawski orion at cora.nwra.comFri Apr 10 10:16:20 PDT 2009
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Bill Broadley wrote: > Guy Coates wrote: >> Yikes, epic recovery. >> >>> What are the lessons learnt? >> You forgot the obvious one. > > I suggest ditching silly old centos/redhat kernels and run something new > enough to allow for scrubbing. So that all your disks don't silently start > collecting errors waiting to cascade into a lost RAID upon the first > non-silent error. As a stop-gap solution here I periodically use "smartctl -t long /dev/<blah>" on all the disks to check their status. I have a daily cron that does one disk a day on my 26 disk servers so each disk checks checked once a month. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion at cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com
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