I've been doing some ZFS on linux vs XFS benchmarking and I'm seeing that
ZFS is performing slightly better than XFS on reads and writes but sucks on
deletes. If you're not going to be doing lots of deletes and need the
ability to expand (e.g. thinking of using LVM) then ZFS may be a nice
alternative to XFS+LVM . ZFS also has built in compression, and so far with
my benchmarks (using lzjb) with it turned, random, sequential reads and
writes are slightly slower than the vs without compression and still a few
seconds faster than XFS (which has no compression).
On Mon, Dec 2, 2013 at 4:35 PM, Carl Cravens <[email protected]> wrote:
> My experience troubleshooting I/O performance over iSCSI is that Ext4
> journaling has a much higher CPU overhead than XFS does. Papers I've read
> show evidence that "modern" XFS journaling scales better (better
> performance) than Ext4 as disks grow larger.
> http://lwn.net/Articles/476263/
>
> As a sysadmin, I like XFS management tools better than I do Ext4's.
>
> On 12/02/2013 01:15 PM, Hans Kraus wrote:
> > Am 02.12.2013 16:00, schrieb [email protected]:
> >> Hi,
> >> I'm using BackupPC 3.2.1-4 (official Debian 7 package).
> >> I'm going to configure an external storage (Coraid) in order to backup
> several
> >> server (mostly Linux).
> >> What kind of file system do you suggest?
> >> Array is 7 TB large (raid6).
> >> Thank you very much
> >
> > Hi,
> > I've chosen Ext4, standig before the same problem some months ago. The
> > reason behind this decision was that Ext4 seemed the best 'general
> > purpose' FS. Maybe one of the developers can shed more light on this.
> >
> > Regards, Hans
> >
> >
> >
> >
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>
> --
> Carl D Cravens ([email protected]), Ext 228 (620.327.1228)
> Lead System Architect
>
>
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