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Re: Dumping a mounted filesystem

To: Chris Pascoe <c.pascoe@xxxxxxxxxxxxxx>
Subject: Re: Dumping a mounted filesystem
From: ivanr@xxxxxxxxxxxxxxxxx (Ivan Rayner)
Date: Tue, 1 May 2001 10:36:51 +1000
Cc: <linux-xfs@xxxxxxxxxxx>
In-reply-to: <Pine.GSO.4.33.0105010033270.21451-100000@mango.csee.uq.edu.au>
Sender: owner-linux-xfs@xxxxxxxxxxx
On Tue, 1 May 2001, Chris Pascoe wrote:

> I guess the big one that I'm curious about is: will an xfsdump of a live
> XFS filesystem produce reliable dumps every time?  Or should one
> definitely be using tar for backups - in which case I guess the problem
> mentioned here about a week ago(?) that there's currently no easy way to
> back up just the extended information remains.

I haven't read the thread in the kernel mailing list, so please
excuse me if I'm missing the point.

Xfsdump will read from the filesystem like tar (but more efficiently) and
does not need to read directly from the device, so it should be as
reliable as tar.

It is best, however, to run xfsdump on a filesystem when it is not being
used to reduce the chances of files and data changing while xfsdump is
running.  This would also be applicable to tar, of course.

Ivan

-- 
Ivan Rayner
ivanr@xxxxxxxxxxxxxxxxx


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