Albert, Never used EC for (root) data pool. Le jeu. 25 janv. 2024 à 12:08, Albert Shih <Albert.Shih@xxxxxxxx> a écrit : > Le 25/01/2024 à 08:42:19+0000, Eugen Block a écrit > > Hi, > > > > it's really as easy as it sounds (fresh test cluster on 18.2.1 without > any > > pools yet): > > > > ceph:~ # ceph fs volume create cephfs > > Yes...I already try that with the label and works fine. > > But I prefer to use «my» pools. Because I have ssd/hdd and want also try > «erasure coding» pool for the data. > > I also need to set the pg_num and pgp_num (I know I can do that after the > creation). > So I manage to do ... half what I want... > > In fact > > ceph fs volume create thing > > will create two pools > > cephfs.thing.meta > cephfs.thing.data > > and if those pool already existe it will use them. > > But that's only if the data are replicated no with erasure coding....(maybe > I forget something config on the pool). > > Well I will currently continue my test with replicated data. > > > The pools and the daemons are created automatically (you can control the > > placement of the daemons with the --placement option). Note that the > > metadata pool needs to be on fast storage, so you might need to change > the > > ruleset for the metadata pool after creation in case you have HDDs in > place. > > Changing pools after the creation can be done via ceph fs commands: > > > > ceph:~ # ceph osd pool create cephfs_data2 > > pool 'cephfs_data2' created > > > > ceph:~ # ceph fs add_data_pool cephfs cephfs_data2 > > Pool 'cephfs_data2' (id '4') has pg autoscale mode 'on' but is not > marked > > as bulk. > > Consider setting the flag by running > > # ceph osd pool set cephfs_data2 bulk true > > added data pool 4 to fsmap > > > > ceph:~ # ceph fs status > > cephfs - 0 clients > > ====== > > RANK STATE MDS ACTIVITY DNS INOS DIRS > > CAPS > > 0 active cephfs.soc9-ceph.uqcybj Reqs: 0 /s 10 13 12 > > 0 > > POOL TYPE USED AVAIL > > cephfs.cephfs.meta metadata 64.0k 13.8G > > cephfs.cephfs.data data 0 13.8G > > cephfs_data2 data 0 13.8G > > > > > > You can't remove the default data pool, though (here it's > > cephfs.cephfs.data). If you want to control the pool creation you can > fall > > back to the method you mentioned, create pools as you require them and > then > > create a new cephfs, and deploy the mds service. > > Yes, but I'm guessing the > > ceph fs volume > > are the «future» so it would be super nice to add (at least) the option to > choose the couple of pool... > > > > > I haven't looked too deep into changing the default pool yet, so there > might > > be a way to switch that as well. > > Ok. I will also try but...well...newbie ;-) > > Anyway thanks. > > regards > > -- > Albert SHIH 🦫 🐸 > France > Heure locale/Local time: > jeu. 25 janv. 2024 12:00:08 CET > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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