On Fri, Nov 15, 2019 at 4:02 PM Wido den Hollander <wido@xxxxxxxx> wrote: > > I normally use LVM on top > of each device and create 2 LVs per OSD: > > - WAL: 1GB > - DB: xx GB Why? I've seen this a few times and I can't figure out what the advantage of doing this explicitly on the LVM level instead of relying on BlueStore to handle this. Paul > > > > > > > The initial cluster is +1PB and we’re planning to expand it again with > > 1PB in the near future to migrate our data. > > > > We’ll only use the system thru the RGW (No CephFS, nor block device), > > and we’ll store “a lot” of small files on it… (Millions of files a day) > > > > > > > > The reason I’m asking it, is that I’ve been able to break the test > > system (long story), causing OSDs to fail as they ran out of space… > > Expanding the disks (the block DB device as well as the main block > > device) failed with the ceph-bluestore-tool… > > > > > > > > Thanks for your answer! > > > > > > > > Kristof > > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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