First: yes, the OSD has to be down to be able to operate on it. Second: for cephadm managed daemons you'll need to use the cephadm shell, so something like (omit the FSID because the full path is mapped into the container): cephadm shell -- ceph-bluestore-tool bluefs-bdev-sizes --path /var/lib/ceph/osd.9/ Third: there's a bluefs-bdev-expand command for ceph-bluestore-tool. That could help here (IIUC, your main device has more space, no migration of DB/WAL). I haven't done this in a while (never on a production cluster, concurring with Janne's response), but I'm pretty sure it worked. So stop osd (set noout), resize PV (which you already have), run bluestore-tool (within cephadm shell) to expand the device, then start the osd (and unset noout). Zitat von lejeczek via ceph-users <ceph-users@ceph.io>:

In my lab ceph is deployed with cephadm - so, containerized env, when I do:

-> $ ceph-bluestore-tool bluefs-bdev-sizes --path /var/lib/ceph/9f4f9dba-72c7-11f0-8052-525400519d29/osd.9/ ... I get a coredump - on each node, each osd - as I thumbed through the net I read somewhere that an 'osd' must be stopped for 'ceph-bluestore-tool' to operate on it? But how would that make sense ? not in my mind, but hey... or I'm doing something forbidden there.

I don't think a "migration" - loosely defined - applies to my scenario as there is nothing to migration onto - disks which Cephs uses "got" more space - no new/more disks/devices.

Ceph sees those changes already: -> $ ceph orch device ls podster1.mine.priv  /dev/vdc  hdd               400G  No  13m ago    Has a FileSystem, LVM detected ... podster3.mine.priv  /dev/vdc  hdd               300G  No  13m ago    Has a FileSystem, Insufficient space (<10 extents) on vgs, LVM detected

first above, is easy to guess - got extra 100GB. I did fiddled with it actually "outside" of ceph, did 'pvresize' (PV which Ceph itself crerated and used LVM) which did not cause any troubles, apparently. So I was itching to do the 'lvresize' too but though Ceph's way should be (existent) preferred - I can imagine even in _production_ people do use.. partitions/LVM - as opposed to whole disks/drives.. no? _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io