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From: Jonathan E Brassow <jbrassow@redhat.com>
Subject: Re: [linux-lvm] replacing a failling disk on a mirrred VG.
Date: Thu, 8 Feb 2007 02:51:02 -0600
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To: LVM general discussion and development <linux-lvm@redhat.com>, steve@myself.gen.nz


On Feb 6, 2007, at 11:41 AM, Steve Wray wrote:

> Jonathan E Brassow wrote:
>> This one should be pretty easy...
>> Effectively, you want to keep the primary mirror devices, so do:
>> lvconvert -m0 <vg/lv>
>> to down convert them to linear devices.
>> Then remove PV1 (vgreduce), add a new disk to your system, add it to 
>> your vg (vgextend), and finally, up-convert the linear devices to 
>> mirrors again:
>> lvconvert -m1 <vg/lv>
>
> So you can't just add a new disk and use pvmove to move extents off of 
> the failing disk?
>

You could if it was a linear device, but we are still working on the 
proper stacking of mirrors.

  brassow