You can loop over the creation of LVs on the SSD of a fixed size, then loop over creating OSDs assigned to each of them. That is what we did, it wasn't bad. On Mon, Dec 9, 2019 at 9:32 PM Philip Brown <pbrown@xxxxxxxxxx> wrote: > > I have a bunch of hard drives I want to use as OSDs, with ceph nautilus. > > ceph-volume lvm create makes straight raw dev usage relatively easy, since you can just do > > ceph-volume lvm create --data /dev/sdc > > or whatever. > Its nice that it takes care of all the LVM jiggerypokery automatically. > > but.. what if you have a single SSD. lets call it /dev/sdx. and I want to use it for the WAL, for > /dev/sdc, sdd, sde, sdf, and so on. > > Do you have to associate each OSD with a unique WAL dev, or can they "share"? > > Do I really have to MANUALLY go carve up /dev/sdx into slices, LVM or otherwise, and then go hand manage the slicing? > > ceph-volume lvm create --data /dev/sdc --block.wal /dev/sdx1 > ceph-volume lvm create --data /dev/sdd --block.wal /dev/sdx2 > ceph-volume lvm create --data /dev/sde --block.wal /dev/sdx3 > ? > > can I not get away with some other more simplified usage? > > > > -- > Philip Brown| Sr. Linux System Administrator | Medata, Inc. > 5 Peters Canyon Rd Suite 250 > Irvine CA 92606 > Office 714.918.1310| Fax 714.918.1325 > pbrown@xxxxxxxxxx| www.medata.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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