Yes. Dumping a mounted filesystem can be bad in some cases. xfs_dump
however, (while not as stable as it could be in that sense) can do it.
Always best to umount though.
--
Austin Gonyou
Systems Architect, CCNA
Coremetrics, Inc.
Phone: 512-796-9023
email: [EMAIL PROTECTED]
> -----Original Message-----
> From: Robert Loomans [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 12, 2001 12:19 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Win4Lin-users] which journal FS - update
>
>
> On Sun, Jun 10, 2001 at 09:58:10PM -0400, Dan Swartzendruber wrote:
> >
> > rejected reiserfs (no dump/restore - personal taste).
>
> In case you don't know, using dump on a mounted filesystem is
> generally
> problematic (not just under Linux, nor is this filesystem
> specific), if
> it's under load, chances are you'll get an inconsistent filesystem and
> possibly corrupted or lost files.
>
> Under Linux, specifically, definitely with ext2/3 possibly with other
> filesystems, in the near future, the 2.4.X series of kernels will keep
> various structures (directories, etc) in the page cache which in turn
> uses the buffer cache. Dump accesses the device through the buffer
> cache, so it won't necessarily get consistent/up-to-date data.
>
> Linus has been quoted (in his typical style :) stating
> something to the
> effect that it's broken, it's always been broken, and it'll get even
> more broken.
>
> So, even if dump has and does work for you, don't expect it
> to continue
> to do so....
>
> Cheers,
> Rob
>
> --
> Robert Loomans
> [EMAIL PROTECTED]
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