Hi Reto, On Wed, Apr 19, 2023 at 9:34 PM Ilya Dryomov <idryomov@xxxxxxxxx> wrote: > > On Wed, Apr 19, 2023 at 5:57 PM Reto Gysi <rlgysi@xxxxxxxxx> wrote: > > > > > > Hi, > > > > Am Mi., 19. Apr. 2023 um 11:02 Uhr schrieb Ilya Dryomov <idryomov@xxxxxxxxx>: > >> > >> On Wed, Apr 19, 2023 at 10:29 AM Reto Gysi <rlgysi@xxxxxxxxx> wrote: > >> > > >> > yes, I used the same ecpool_hdd also for cephfs file systems. The new pool ecpool_test I've created for a test, I've also created it with application profile 'cephfs', but there aren't any cephfs filesystem attached to it. > >> > >> This is not and has never been supported. > > > > > > Do you mean 1) using the same erasure coded pool for both rbd and cephfs, or 2) multiple cephfs filesystem using the same erasure coded pool via ceph.dir.layout.pool="ecpool_hdd"? > > (1), using the same EC pool for both RBD and CephFS. > > > > > 1) > > > > > > 2) > > rgysi cephfs filesystem > > rgysi - 5 clients > > ===== > > RANK STATE MDS ACTIVITY DNS INOS DIRS CAPS > > 0 active rgysi.debian.uhgqen Reqs: 0 /s 409k 408k 40.8k 16.5k > > POOL TYPE USED AVAIL > > cephfs.rgysi.meta metadata 1454M 2114G > > cephfs.rgysi.data data 4898G 17.6T > > ecpool_hdd data 29.3T 29.6T > > > > root@zephir:~# getfattr -n ceph.dir.layout /home/rgysi/am/ecpool/ > > getfattr: Removing leading '/' from absolute path names > > # file: home/rgysi/am/ecpool/ > > ceph.dir.layout="stripe_unit=4194304 stripe_count=1 object_size=4194304 pool=ecpool_hdd" > > > > root@zephir:~# > > > > backups cephfs filesystem > > backups - 2 clients > > ======= > > RANK STATE MDS ACTIVITY DNS INOS DIRS CAPS > > 0 active backups.debian.runngh Reqs: 0 /s 253k 253k 21.3k 899 > > POOL TYPE USED AVAIL > > cephfs.backups.meta metadata 1364M 2114G > > cephfs.backups.data data 16.7T 16.4T > > ecpool_hdd data 29.3T 29.6T > > > > root@zephir:~# getfattr -n ceph.dir.layout /mnt/backups/windows/windows-drives/ > > getfattr: Removing leading '/' from absolute path names > > # file: mnt/backups/windows/windows-drives/ > > ceph.dir.layout="stripe_unit=4194304 stripe_count=1 object_size=4194304 pool=ecpool_hdd" > > > > root@zephir:~# > > > > > > > > So I guess I should use a different ec datapool for rbd and for each of the cephfs filesystems in the future, correct? > > Definitely a different EC pool for RBD (i.e. don't mix with CephFS). > Not sure about the _each_ of the filesystems bit -- Venky or Patrick can > comment on whether sharing an EC pool between filesystems is OK. That's true for CephFS too -- different pools for each ceph file system is recommended. You can use the `--allow-dangerous-metadata-overlay` option when creating a ceph file system to reuse metadata and data pools if those are already in use, however, it's only to be used during emergency situations. > > Thanks, > > Ilya > -- Cheers, Venky _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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