You can't really disable the journal. It's used for failure recovery. It should be fine to place your journal on the same ssd as the osd data directory (though it does affect performance).
-Sam
On Wed, Sep 4, 2013 at 8:40 AM, Neo <neo@xxxxxxxxxxx> wrote:
-------- Original-Nachricht --------
Betreff: Re: SSD only storage, where to place journal Datum: Fri, 30 Aug 2013 22:13:12 +0200 Von: Stefan Priebe <s.priebe@xxxxxxxxxxxx> An: Tobias Brunner <tobias@xxxxxxxx> Kopie (CC): ceph-users@xxxxxxxxxxxxxx
Hi Stefan.
Am 30.08.2013 22:09, schrieb Tobias Brunner: SSD only setup >> Am I doing the correct considerations? What are best practices on an SSD >> only storage cluster? > Yes, thats correct what i hate at this point is that you lower the ssd > speed by writing to journal, reading to journal wirting to ssd. Sadly > there is no option to disable the journal. I think for SSD this would be > best. Are there any considerations by now? Or, is disabling journal sowhat tricky, that we cant build an --nojournal switch for such scenarios? I'd be glad for answers. Have fun and keep up the good work Neo
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