Thank you! I already knew about the ceph osd map command, but I am not sure how to interpret the output. For example, on the described erasure coded pool, the output is:
osdmap e30 pool 'ecpool' (1) object 'sample-obj' -> pg 1.fa0b8566 (1.66) -> up ([1,4,2,0,3], p1) acting ([1,4,2,0,3], p1) This basically tells me that the object 'sample-obj‘ is located on pg 1.fa0b8566 (1.66) and has it’s chunks stored on OSDs [1,4,2,0,3]. But I cannot tell where the data chunks and where the coding chunks are stored, can I? Or is the order of the OSDs in the [1,4,2,0,3] list of relevance? I am missing some documentation on how to interpret the output, I guess. - Jonas > Am 19.06.2017 um 23:45 schrieb Marko Sluga <[email protected]>: > > Hi Jonas, > > ceph osd map [poolname] [objectname] > > should provide you with more information about where the object and chunks > are stored on the cluster. > > Regards, > > Marko Sluga > Independent Trainer > > <1487020143233.jpg> > > W: http://markocloud.com <http://markocloud.com/> > T: +1 (647) 546-4365 > > L + M Consulting Inc. > Ste 212, 2121 Lake Shore Blvd W > M8E 4E9, Etobicoke, ON > > > ---- On Mon, 19 Jun 2017 14:56:57 -0400 Jonas Jaszkowic > <[email protected]> wrote ---- > > Hello all, I have a simple question: > > I have an erasure coded pool with k = 2 data chunks and m = 3 coding chunks, > how can I determine the location of the data and coding chunks? Given an > object A > that is stored on n = k + m different OSDs I want to find out where (i.e. on > which OSDs) > the data chunks are stored and where the coding chunks are stored. > > Thank you! > > - Jonas > _______________________________________________ > ceph-users mailing list > [email protected] <mailto:[email protected]> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> >
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