[Systems] Ailing drive on housetree

[Bernie Innocenti]

On Sat, 2011-11-12 at 01:18 -0500, Bernie Innocenti wrote:
> On Fri, 2011-11-11 at 23:25 -0500, Chris Ball wrote:
> > Hi Bernie,
> > 
> > On Fri, Nov 11 2011, Bernie Innocenti wrote:
> > > Today I finally figured out why housetree was reporting high load
> > > occasionally without any apparent activity on the VMs.
> > >
> > > It turns out that sdb is dying, and we didn't even have smartd running.
> > > Luckily, sdb is part of RAID1 arrays with triple-redundancy. We could
> > > continue operating with 2 drives for some time, but I'd feel safer if we
> > > replaced the drive as soon as possible. After all, the remaining drives
> > > are the same model and have been operating for the same amount of time
> > > (806 days).
> > 
> > Dumb question for my own curiosity: what in the smartctl output tells you
> > that the disk is failing, compared to when run against the other disks?
> 
> I should have published the diffs:

Ah, the self-test failed too:

 SMART Self-test log structure revision number 1
 Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
 # 1  Short offline       Completed: electrical failure 90%     19507         0

-- 
 _ // Bernie Innocenti
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