Re: Device delete returns "unable to go below four devices on raid10" on 5 drive setup

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On Sun, 2013-09-01 at 14:08 +0200, Steven Post wrote:
> On Sat, 2013-08-31 at 18:03 -0600, Chris Murphy wrote:
> > On Aug 31, 2013, at 5:55 PM, Steven Post <redalert.commander@xxxxxxxxx> wrote:
> > 
> > > On Sat, 2013-08-31 at 11:42 -0600, Chris Murphy wrote:
> > >> 
> > >> Yes. It might take a few minutes after the chunks are reallocated for the device to be removed from the volume. I've had some cases where even a reboot was needed for the information in fi sh to refresh.
> > > 
> > > I see, so that might be normal behaviour.
> > 
> > No, I think it's expected for deleted devices to not appear in the volume listing anymore, but with older kernels I had that experience. I haven't tried it recently with newer kernels.
> 
> I might have phrased that a bit incorrectly, with 'normal behaviour' I
> meant it was known to do that and not cause major problems. Of course I
> would expect the entry to just disappear.
> I'll let you know the result of the 'device delete' operation on the
> second machine (3.10.7 kernel).

The 3.10.7 kernel doesn't seem to have this issue, the removed device is
not listed anymore immediately after the 'device delete' command
returns. Although in that instance the array still had 6 drives, not 5
as with the old one.

[...]

Best regards,
Steven

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