RE: OK, Now this is really weird

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> -----Original Message-----
> From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Jeff Woods
> Sent: Saturday, February 26, 2011 1:36 AM
> To: lrhorer@xxxxxxxxxxx
> Cc: 'Linux RAID'
> Subject: Re: OK, Now this is really weird
> 
> Quoting Leslie Rhorer <lrhorer@xxxxxxxxxxx>:
> > 	I have a pair of drives each of whose 3 partitions are members of a
> > set of 3 RAID arrays.  One of the two drives had a flaky power
> connection
> > which I thought I had fixed, but I guess not, because the drive was
> taken
> > offline again on Tuesday.  The significant issue, however, is that both
> > times the drive failed, mdadm behaved really oddly.  The first time I
> > thought it might just be some odd anomaly, but the second time it did
> > precisely the same thing.  Both times, when the drive was de-registered
> by
> > udev, the first two arrays properly responded to the failure, but the
> third
> > array did not.  Here is the layout:
> 
> [snip lots of technical details]
> 
> > 	So what gives?  /dev/sdk3 no longer even exists, so why hasn't it
> > been failed and removed on /dev /md3 like it has on /dev/md1 and
> /dev/md2?
> 
> Is it possible there has been no I/O request for /dev/md3 since
> /dev/sdk failed?

	Well, I thought about that.  It's swap space, so I suppose it's
possible.  I would have thought, however, that mdadm would fail a missing
member whether there is any I/O or not.

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