Re: Best File System for partitions over 600GB

["Kushal Kumaran" <kushal.kumaran+debian@gmail.com>]

On 4/2/07, Siju George <sgeorge.ml@gmail.com> wrote:
> On 2/20/07, marcus.blumhagen@web.de <marcus.blumhagen@web.de> wrote:
> >
> > So this is where my suggestion for a filesystem comes into play. I
> > used XFS in the beginning of my experiments with LVM but am migrating
> > to ext3 now, since XFS can only be grown but not shrunk. But growing
> > *and* shrinking are both natively supported features of ext3. Also it
> > seems to be slightly faster than XFS on my setup. I recently migrated
> > my /home (about 16GB) partition from XFS to ext3, using some spare
> > diskspace with an intermediate ext3 partition. Copying from the XFS to
> > the ext3 partition took about 14 minutes, whilst copying from the
> > intermediate ext3 to the final ext3 /home took 12 minutes.
> >
>
>
> But it seems ext3 has to be unmounted to increase and decrease in size right?
> That would mean downtime for server.
>
> ReiserFS seems to be only file system from
>
> http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html
>
> that can be extended and shrunk while the file systems are mounted and
> are online without disrupting the Services that the Server offers.

The resize_reiserfs manpage says that the filesystem has to be
unmounted before shrinking.  IIRC, it will refuse to shrink if it is
mounted, although I don't know what happens if you try shrinking with
too much data on the filesystem.

Extending is no problem.

--
Kushal