| To: | Ragnar Kjørstad <xfs@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: LVM snapshot and XFS |
| From: | Steve Lord <lord@xxxxxxx> |
| Date: | Tue, 17 Jul 2001 13:19:15 -0500 |
| Cc: | Tom Carroll <tcarroll@xxxxxxxxxxxxx>, linux-xfs <linux-xfs@xxxxxxxxxxx> |
| Comments: | In-reply-to Ragnar Kjørstad <xfs@xxxxxxxxxxxxxxxxxxx> message dated "Tue, 17 Jul 2001 20:13:59 +0200." |
| References: | <20010717105707.A15638@xxxxxxxxxxxxx> <20010717201359.C29034@xxxxxxxxxxx> |
| Sender: | owner-linux-xfs@xxxxxxxxxxx |
> The snapshot device is read-only, so you can't change the UUID. > > I believe there is a kernel patch floating around to allow you to mount > multiple filesystems with the same UUID. > > You'll then run into the next problem: > The snapshot is of an unclean XFS filesystem, and since the device is > readonly you can't reply the journal or run fsck. For now the only way > around this is to unmount your filesystem when taking the snapshot. > It should be a clean filesystem, providing you use either the xfs_freeze command before the snapshot, or apply the lvm patch to have it call the filesystem to sync out to disk before the snapshot. Steve > > > -- > Ragnar Kjorstad > Big Storage |
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