From: James Hawtin <oolon@ankh.org>
To: linux-lvm@redhat.com
Subject: Re: [linux-lvm] Snapshots and disk re-use
Date: Tue, 05 Apr 2011 20:59:49 +0000 [thread overview]
Message-ID: <4D9B82C5.3020704@ankh.org> (raw)
In-Reply-To: <4D9B8015.2060503@abpni.co.uk>
On 05/04/2011 20:48, Jonathan Tripathy wrote:
>
> Yeah, I'll have to try this on a non-production server. Which kernel
> do you expect to crash? The Dom0 (Xen + LVM host) or the VM? Anyway,
> just thinking about it, it seems that pausing/saving/shutting down the
> VM is a must, as the VM may be writing to disk at the time of zeroing
> the cow (!!).
>
> In the hosting industy, what does everyone else do? Do they just
> ignore the issue???
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
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As an alturnative could you not?
1) Create snapshot lv using specific physical extents.
lvcreate -s -l 100 ..... /dev/sdx1:0-99
2) Backup VM
3) Delete snapshot lv
4) create a normal lv using same physical extents
lvcreate -l 100 ..... /dev/sdx1:0-99
5) zero normal lv
6) delete normal lv
James
next prev parent reply other threads:[~2011-04-05 20:59 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-23 12:36 [linux-lvm] Snapshots and disk re-use Jonathan Tripathy
2011-02-23 13:09 ` Joe Thornber
2011-02-23 13:57 ` Jonathan Tripathy
2011-02-23 14:16 ` Joe Thornber
2011-02-23 14:18 ` Jonathan Tripathy
2011-02-23 16:12 ` Ray Morris
2011-02-23 16:55 ` Jonathan Tripathy
2011-02-23 17:54 ` Stuart D. Gathman
2011-02-23 18:05 ` Jonathan Tripathy
2011-02-23 19:34 ` Stuart D. Gathman
2011-02-23 18:05 ` Stuart D. Gathman
2011-02-23 18:19 ` Jonathan Tripathy
2011-02-23 18:39 ` Les Mikesell
2011-02-23 19:39 ` Stuart D. Gathman
2011-02-23 20:03 ` Les Mikesell
2011-02-23 20:37 ` Stuart D. Gathman
2011-02-23 20:49 ` Jonathan Tripathy
2011-02-23 23:25 ` Stuart D. Gathman
2011-02-23 23:42 ` Stuart D. Gathman
2011-02-24 0:09 ` Jonathan Tripathy
2011-02-24 0:32 ` Stuart D. Gathman
2011-02-24 0:37 ` Jonathan Tripathy
2011-02-24 0:40 ` Jonathan Tripathy
2011-02-24 2:00 ` Stuart D. Gathman
2011-02-24 7:33 ` Jonathan Tripathy
2011-02-24 14:50 ` Stuart D. Gathman
2011-02-24 14:57 ` Jonathan Tripathy
2011-02-24 15:13 ` Stuart D. Gathman
2011-02-24 15:20 ` Jonathan Tripathy
2011-02-24 16:41 ` Jonathan Tripathy
2011-02-24 19:15 ` Nataraj
2011-02-24 19:25 ` Les Mikesell
2011-02-24 19:55 ` Stuart D. Gathman
2011-02-24 19:19 ` Stuart D. Gathman
2011-02-24 19:45 ` Stuart D. Gathman
2011-02-24 21:22 ` Jonathan Tripathy
2011-04-05 20:09 ` Jonathan Tripathy
2011-04-05 20:41 ` Stuart D. Gathman
2011-04-05 20:48 ` Jonathan Tripathy
2011-04-05 20:59 ` James Hawtin [this message]
2011-04-05 21:36 ` Jonathan Tripathy
2011-04-05 22:42 ` James Hawtin
2011-04-05 22:52 ` Jonathan Tripathy
2011-04-05 23:11 ` James Hawtin
2011-04-05 23:19 ` Jonathan Tripathy
2011-04-05 23:39 ` James Hawtin
2011-04-06 0:00 ` Jonathan Tripathy
2011-04-06 0:08 ` Stuart D. Gathman
2011-04-06 0:14 ` Jonathan Tripathy
2011-04-06 0:16 ` James Hawtin
2011-04-06 0:28 ` Jonathan Tripathy
2011-04-06 0:38 ` Stuart D. Gathman
2011-04-06 0:43 ` Stuart D. Gathman
2011-04-06 1:36 ` James Hawtin
2011-04-06 1:47 ` Jonathan Tripathy
2011-04-06 1:53 ` James Hawtin
2011-04-06 0:47 ` Jonathan Tripathy
2011-04-06 0:42 ` James Hawtin
2011-04-06 0:50 ` Jonathan Tripathy
2011-04-06 1:20 ` James Hawtin
2011-04-06 1:45 ` Jonathan Tripathy
2011-02-23 19:49 ` Nataraj
2011-02-23 19:24 ` Stuart D. Gathman
2011-02-23 19:07 ` [linux-lvm] Problem executing lvm related commands Tinni
2011-02-23 19:33 ` [linux-lvm] Snapshots and disk re-use Phillip Susi
2011-02-23 19:45 ` Stuart D. Gathman
2011-02-23 19:56 ` Nataraj
2011-02-23 13:18 ` Sunil_Gupta2
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