On 09/10/13 13:38, Kees Bos wrote:
Hi,
What is the estimated storage usage for a monitor (i.e. the amount of
data stored in /var/lib/ceph/mon/ceph-mon01)
Currently in my starting test system it's something like 40M (du -s
-h /var/lib/ceph/mon/ceph-mon01), but that will probably grow with the
number of osds.
Are there some numbers available?
We don't have hard numbers for you unfortunately. From my experience
however I can tell you that it will grow to several hundred MB to few
GB. It mostly depends on your cluster size, OSD-wise, and the
healthiness of your cluster (if you spend a considerable time in an
unhealthy OSD state, then the monitors will keep more OSD maps that they
usually do, thus increasing disk usage).
As a rule of thumbs, if your monitors' stores hit double-digits GBs and
keep growing, you should definitely look into what's going on and maybe
drop in #ceph @ OFTC, but that has been becoming unlikely as of latest
releases.
-Joao
--
Joao Eduardo Luis
Software Engineer | http://inktank.com | http://ceph.com
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