I do not believe there is any way to change the size of any part of a bluestore OSD configuration.
On Thu, May 10, 2018 at 6:37 AM Paul Emmerich <paul.emmer...@croit.io> wrote: > You usually don't do that because you are supposed to use the whole disk. > > > Paul > > 2018-05-10 12:31 GMT+02:00 Yi-Cian Pu <yician1000c...@gmail.com>: > >> Hi All, >> >> >> >> We are wondering if there is any way to expand OSD’s capacity. We are >> studying about this and conducted an experiment. However, in the result, >> the size of expanded capacity is counted on the USED part rather than the >> AVAIL one. The following shows the process of our experiment: >> >> >> >> 1. We prepare a small cluster of luminous v12.2.4 and write some >> data into pool. The osd.1 is manually deployed and it uses a disk partition >> of size 100GB (the whole disk size is 320GB). >> >> ===================================================================== >> >> [root@workstation /]# ceph osd df >> >> ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS >> >> 0 hdd 0.28999 1.00000 297G 27062M 271G 8.89 0.67 32 >> >> 1 hdd 0.09999 1.00000 100G 27062M 76361M 26.17 1.97 32 >> >> TOTAL 398G 54125M 345G 13.27 >> >> MIN/MAX VAR: 0.67/1.97 STDDEV: 9.63 >> >> ===================================================================== >> >> >> >> 2. Then, we expand the disk partition used by osd.1 by the >> following steps: >> >> (1) Stop osd.1 daemon >> >> (2) Use “parted” command to expand 50GB of the disk partition. >> >> (3) Restart osd.1 daemon >> >> >> >> 3. After we do the above steps, we have the result that the >> expanded size is counted on USED part. >> >> ===================================================================== >> >> [root@workstation /]# ceph osd df >> >> ID CLASS WEIGHT REWEIGHT SIZE USE AVAIL %USE VAR PGS >> >> 0 hdd 0.28999 1.00000 297G 27063M 271G 8.89 0.39 32 >> >> 1 hdd 0.09999 1.00000 150G 78263M 76360M 50.62 2.21 32 >> >> TOTAL 448G 102G 345G 22.94 >> >> MIN/MAX VAR: 0.39/2.21 STDDEV: 21.95 >> >> ===================================================================== >> >> >> >> This is what we have tried, and the result looks very confusing. We’d >> really want to >> >> know if there is any way to normally expand OSD’s capacity. Any feedback >> or suggestions would be much appreciated. >> >> >> >> Regards, >> Yi-Cian >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> > > > -- > -- > Paul Emmerich > > Looking for help with your Ceph cluster? Contact us at https://croit.io > > croit GmbH > Freseniusstr. 31h > 81247 München > www.croit.io > Tel: +49 89 1896585 90 <+49%2089%20189658590> > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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