Re: LVM snapshots - Mailing list pgsql-admin

From Trewern, Ben
Subject Re: LVM snapshots
Date
Msg-id 996802F75C3CD411B424001083FA445B534D51@CET_PONXX_FP001
Whole thread Raw
In response to LVM snapshots  ("Matt Clark" <matt@ymogen.net>)
Responses Re: LVM snapshots  ("Matt Clark" <matt@ymogen.net>)
List pgsql-admin

I don't see why not.  What happens if your server crashes?  Hopefully what's on the disk is consistent (one of the good reasons to use Postgresql).

BTW I've heard of someone else doing something like this and using rsync.  He was running it just before the snapshot and then again against the snapshot.  This should then reduce the amount of time the actual snapshot needs to be kept.

Regards,

Ben

-----Original Message-----
From: David F. Skoll [mailto:dfs@roaringpenguin.com]
Sent: 14 March 2003 15:52
To: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] LVM snapshots

On Fri, 14 Mar 2003, Matt Clark wrote:

> Has anyone tried taking an LVM snapshot of a running DB?

I don't think there's a guarantee that a snapshot of the file system
corresponds to a consistent database, even if the snapshot corresponds
to a single point-in-time.

--
David.

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