Re: Mounting a dump file

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Apr 11, 2013 at 12:23:17PM +0200, Luca wrote:
> Hello,
> 
> > dump(8) has race conditions when used to dump live filesystems: it's
> > possible to get skew between what dump reads at one point and what it
> > reads at a later point.
> 
> In short, dump(8) isn't a good solution to backup a live file system ?

I've been using it for years, without data recovery issues.
I don't think there is 100% safe backup tool that can work entirely
in userland, without kernel help.

> 
> What are the alternative ?

filesystem snapshots, see dump -x or dump -X

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--