I use `dd` to force activity to the disk I want to replace, and watch the activity lights. That only works if your disks aren't 100% busy. If they are, stop the ceph-osd daemon, and see which drive stops having activity. Repeat until you're 100% confident that you're pulling the right drive.
On Wed, Nov 12, 2014 at 5:05 AM, SCHAER Frederic <frederic.sch...@cea.fr> wrote: > Hi, > > > > I’m used to RAID software giving me the failing disks slots, and most > often blinking the disks on the disk bays. > > I recently installed a DELL “6GB HBA SAS” JBOD card, said to be an LSI > 2008 one, and I now have to identify 3 pre-failed disks (so says S.M.A.R.T) > . > > > > Since this is an LSI, I thought I’d use MegaCli to identify the disks > slot, but MegaCli does not see the HBA card. > > Then I found the LSI “sas2ircu” utility, but again, this one fails at > giving me the disk slots (it finds the disks, serials and others, but slot > is always 0) > > Because of this, I’m going to head over to the disk bay and unplug the > disk which I think corresponds to the alphabetical order in linux, and see > if it’s the correct one…. But even if this is correct this time, it might > not be next time. > > > > But this makes me wonder : how do you guys, Ceph users, manage your disks > if you really have JBOD servers ? > > I can’t imagine having to guess slots that each time, and I can’t imagine > neither creating serial number stickers for every single disk I could have > to manage … > > Is there any specific advice reguarding JBOD cards people should (not) use > in their systems ? > > Any magical way to “blink” a drive in linux ? > > > > Thanks && regards > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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