From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Tue, 30 Aug 2011 13:47:03 +0200
From: Zdenek Kabelac <zkabelac@redhat.com>
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Subject: Re: [linux-lvm] Proper way to delete an active snapshot?
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To: LVM general discussion and development <linux-lvm@redhat.com>
Cc: "Linda A. Walsh" <lvm@tlinx.org>

Dne 30.8.2011 13:32, Linda A. Walsh napsal(a):
> 
> 
> 
> If you have a snapshot of a volume running... how are you supposed to delete
> it?
> 
> i.e. after you unmount it... if I just do a lvremove, I get a warning about it
> being
> an active volume -- so I tried doing a dmsetup remove on it first -- and that
> stops the warning -- but I just noticed, I had a bunch of inactive 'cow'
> volume names under 'dmsetup ls', that referred to the old snapshot names.


lvchange -an  vg/snapshot_lv

Does it work for you ?

If so - please post  -vvvv  trace.

Zdenek