Hi Ryan, it means that the OSDs are physically reading the whole content of the PG, recalculating the checksum of each object to verify that the content of the PG is identical on each OSD protecting the PG. This is to make sure the data that was written to the underlying filesystem of each OSD is identical and hasn't been altered.
So to make it short the OSDs are checking the coherence of the data stored in the PG. Cheers JC > On 13 Mar 2015, at 18:53, [email protected] wrote: > > Hi Jean, > > Actually, I want to ask you that what means deep scrubbing? What was ceph > doing at that time? > > [email protected] > > From: LOPEZ Jean-Charles <mailto:[email protected]> > Date: 2015-03-13 15:34 > To: [email protected] <mailto:[email protected]> > CC: LOPEZ Jean-Charles <mailto:[email protected]>; ceph-users > <mailto:[email protected]> > Subject: Re: [ceph-users] what means active+clean+scrubbing+deep > Hi Ryan, > > it means that the PG is in good health (clean), is available (active) and > that deep scrubbing is currently being performed (scrubbing+deep) > > JC > > > On 13 Mar 2015, at 17:59, [email protected] wrote: > > > > Hi all, > > > > Anyone knows what means 'active+clean+scrubbing+deep' ? > > > > [email protected] > > _______________________________________________ > > ceph-users mailing list > > [email protected] > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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