cephfs: creating two subvolumegroups with dedicated data pool...

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Hello list,

i have a strange issue creating cephfs subvolumegroup  with  dedicated
pools....

We have four fs (volumes); one is "backup" I would like to set up two
subvolumegroup  "veeampool" and "bareospool" each with dedicated data
pools  "cephfs.backup.veeam.data" and "cephfs.backup.bareos.data".  Both
EC42 with overwrites enabled and application cephfs. Pls see below.

isceph@ceph-deploy:~$ sudo ceph fs subvolumegroup create backup
veeampool  --pool_layout cephfs.backup.veeam.data

...First one is ok.
 
isceph@ceph-deploy:~$ sudo ceph fs subvolumegroup create backup
bareospool --pool_layout cephfs.backup.bareos.data
Error EINVAL: Invalid pool layout 'cephfs.backup.bareos.data'. It must
be a valid data pool

Second one throws this error...   Is there only one data pool allowed
per volume?

Many thanks for clarification

Christoph

...pool ls detail
[..]
pool 44 'cephfs.backup.meta' replicated size 3 min_size 2 crush_rule 0
object_hash rjenkins pg_num 32 pgp_num 32 autoscale_mode on last_change
1132068
flags hashpspool stripe_width 0 pg_autoscale_bias 4 pg_num_min 16
recovery_priority 5 application cephfs

pool 45 'cephfs.backup.data' replicated size 3 min_size 2 crush_rule 0
object_hash rjenkins pg_num 32 pgp_num 32 autoscale_mode on last_change
1132068
flags hashpspool stripe_width 0 application cephfs


pool 46 'cephfs.backup.veeam.data' erasure profile ec-42-profile size 6
min_size 5 crush_rule 9
object_hash rjenkins pg_num 64 pgp_num 64 autoscale_mode warn
last_change 1174754 lfor 0/0/1174708
flags hashpspool,ec_overwrites stripe_width 16384 application cephfs

pool 48 'cephfs.backup.bareos.data' erasure profile ec-42-profile size 6
min_size 5 crush_rule 10
object_hash rjenkins pg_num 64 pgp_num 64 autoscale_mode warn
last_change 1176205
flags hashpspool,ec_overwrites stripe_width 16384 application cephfs



-- 
Christoph Ackermann | System Engineer


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