Re: Crush Map and SSD Pools

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On Tue Dec 30 2014 at 11:49:09 PM Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx> wrote:
On Tue, 30 Dec 2014 11:25:40 PM Erik Logtenberg wrote:
> f you want to be able to start your osd's with /etc/init.d/ceph init
> script, then you better make sure that /etc/ceph/ceph.conf does link
> the osd's to the actual hostname

I tried again and it was ok for a short while, then *something* moved the ssd
osd's from "<host>-ssd" to "<host>". Fortunately I had them weighted at 0.

I believe that the upstart scripts will do this by default, they call out to a bash script (I can't remember precisely what that is off the top of my head) which then returns the crush rule, which will default to host=X osd=X unless it's overridden somewhere (ceph.conf).

If memory serves there's the ability to provide your own script to call out to in order to provide the crush rule.
 

I suspect it was the cluster manager I'm using (proxmox) which adds a simple
gui layer over ceph, I suspect it doesn't deal with this usecase yet.

I'll take it to the proxmox list.

--
Lindsay_______________________________________________
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