This bug was initially created as a copy of Bug #2303080 I am copying this bug because: With the 4.16.1 fix to initialize the pools so the PG autoscaler can properly scale the PGs, the .mgr CephBlockPool CR is now being created by ODF. The user has no need to configure this pool, so let's hide it from the UI. Description of problem (please be detailed as possible and provide log snippests): ================================================================================= The default cephblockpool, cephfilesystem and cephobjectstore.rgw pools are created with a single PGs on 4.16.0 (4.16.0-137) and 4.16.1 (4.16.1-7). It looks like the regression started from 4.16.0, on 4.15.5 the PGs count for the default ceph pools was set correctly. ODF 4.16.0 and 4.16.1: ================== --- POOLS --- POOL ID PGS STORED (DATA) (OMAP) OBJECTS USED (DATA) (OMAP) %USED MAX AVAIL QUOTA OBJECTS QUOTA BYTES DIRTY USED COMPR UNDER COMPR ocs-storagecluster-cephobjectstore.rgw.buckets.non-ec 1 8 0 B 0 B 0 B 0 0 B 0 B 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.buckets.index 2 8 0 B 0 B 0 B 11 0 B 0 B 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.meta 3 8 2.8 KiB 2.8 KiB 0 B 14 144 KiB 144 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.control 4 8 0 B 0 B 0 B 8 0 B 0 B 0 B 0 435 GiB N/A N/A N/A 0 B 0 B .rgw.root 5 8 5.7 KiB 5.7 KiB 0 B 17 192 KiB 192 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.log 6 8 3.7 KiB 3.7 KiB 0 B 181 420 KiB 420 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.otp 7 8 0 B 0 B 0 B 0 0 B 0 B 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephblockpool 8 1 128 MiB 128 MiB 0 B 239 384 MiB 384 MiB 0 B 0.03 435 GiB N/A N/A N/A 0 B 0 B .mgr 9 1 577 KiB 577 KiB 0 B 2 1.7 MiB 1.7 MiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephobjectstore.rgw.buckets.data 10 1 1 KiB 1 KiB 0 B 1 12 KiB 12 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephfilesystem-metadata 11 1 61 KiB 61 KiB 0 B 24 264 KiB 264 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ocs-storagecluster-cephfilesystem-data0 12 1 158 B 158 B 0 B 1 12 KiB 12 KiB 0 B 0 435 GiB N/A N/A N/A 0 B 0 B ODF 4.15.5 ========== --- POOLS --- POOL ID PGS STORED OBJECTS USED %USED MAX AVAIL ocs-storagecluster-cephblockpool 1 32 21 GiB 6.38k 63 GiB 1.21 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.buckets.non-ec 2 8 0 B 0 0 B 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.control 3 8 0 B 8 0 B 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.log 4 8 6.5 MiB 340 21 MiB 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.meta 5 8 3.3 KiB 17 145 KiB 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.otp 6 8 0 B 0 0 B 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.buckets.index 7 8 381 KiB 11 1.1 MiB 0 1.7 TiB .rgw.root 8 8 5.7 KiB 16 180 KiB 0 1.7 TiB ocs-storagecluster-cephobjectstore.rgw.buckets.data 9 32 189 KiB 5 600 KiB 0 1.7 TiB ocs-storagecluster-cephfilesystem-metadata 10 16 659 MiB 226 1.9 GiB 0.04 1.7 TiB ocs-storagecluster-cephfilesystem-data0 11 32 0 B 0 0 B 0 1.7 TiB .mgr pg_num and pgp_num are set to 1 in the ceph osd ls pools pool 1 'ocs-storagecluster-cephblockpool' replicated size 3 min_size 2 crush_rule 9 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode on last_change 47 flags hashpspool,selfmanaged_snaps stripe_width 0 target_size_ratio 0.49 application rbd read_balance_score 3.00 pool 2 'ocs-storagecluster-cephobjectstore.rgw.control' replicated size 3 min_size 2 crush_rule 15 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.88 pool 3 '.rgw.root' replicated size 3 min_size 2 crush_rule 13 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.50 pool 4 'ocs-storagecluster-cephobjectstore.rgw.log' replicated size 3 min_size 2 crush_rule 12 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.50 pool 5 'ocs-storagecluster-cephobjectstore.rgw.buckets.index' replicated size 3 min_size 2 crush_rule 16 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.50 pool 6 'ocs-storagecluster-cephobjectstore.rgw.otp' replicated size 3 min_size 2 crush_rule 17 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.13 pool 7 'ocs-storagecluster-cephobjectstore.rgw.buckets.non-ec' replicated size 3 min_size 2 crush_rule 14 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 35 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.50 pool 8 'ocs-storagecluster-cephobjectstore.rgw.meta' replicated size 3 min_size 2 crush_rule 11 object_hash rjenkins pg_num 8 pgp_num 8 autoscale_mode on last_change 36 flags hashpspool stripe_width 0 pg_num_min 8 application rgw read_balance_score 1.88 pool 9 'ocs-storagecluster-cephfilesystem-metadata' replicated size 3 min_size 2 crush_rule 19 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode on last_change 25 flags hashpspool stripe_width 0 pg_autoscale_bias 4 pg_num_min 16 recovery_priority 5 application cephfs read_balance_score 3.00 pool 10 'ocs-storagecluster-cephobjectstore.rgw.buckets.data' replicated size 3 min_size 2 crush_rule 21 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode on last_change 37 flags hashpspool stripe_width 0 target_size_ratio 0.49 application rgw read_balance_score 3.00 pool 11 'ocs-storagecluster-cephfilesystem-data0' replicated size 3 min_size 2 crush_rule 22 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode on last_change 51 flags hashpspool,selfmanaged_snaps stripe_width 0 target_size_ratio 0.49 application cephfs read_balance_score 3.00 pool 12 '.mgr' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 1 pgp_num 1 autoscale_mode on last_change 28 flags hashpspool stripe_width 0 pg_num_max 32 pg_num_min 1 application mgr read_balance_score 3.00 Version of all relevant components (if applicable): 4.16.0 (4.16.0-137) and 4.16.1 (4.16.1-7). Does this issue impact your ability to continue to work with the product (please explain in detail what is the user impact)? AFAIK, there won't be any issues accessing the pool but it may impact the performance Is there any workaround available to the best of your knowledge? Yes, we can increase the number of PGs in the pool to desired number from tool box pod Rate from 1 - 5 the complexity of the scenario you performed that caused this bug (1 - very simple, 5 - very complex)? 1 Can this issue reproducible? Yes Can this issue reproduce from the UI? If this is a regression, please provide more details to justify this: Yes, it is a regression. The default ceph pool are created correctly on 4.15.5 Steps to Reproduce: =================== 1) Deploy an ODF cluster on 4.16.0 or 4.16.1 and check the default ceph pools by running ceph df command or ceph osd pool ls detail or through any command which shows the pg count for a pool Actual results: =============== The default cephblockpool, cephfilesystem and cephobjectstore.rgw pools are created with a single PGs (pg_num 1 pgp_num 1) Expected results: ================= The default ceph pools should be created with its default values as in 4.15.5