hello when I run my borgbackup over cephfs volume (10 subvolumes for 1.5To) I can see a big increase of osd space usage and 2 or 3 osd goes near full, or full, then out and finally the cluster goes in error.
Any tips to prevent this ? My cluster is cephv15 with : 9 nodes : each node run : 2x6to hdd and 2x600to ssd the cephfs got data on hdd and metadata on ssd. the cephfs md cache is : 32Go 128pg for data and metadata (this is has been setup by auto balancer) Perhaps I can fix the pg num for each of cephfs pool and prevent autobalancer to run for them. what do you think ? thx you for your help and advices. UPDATE : I increase the pg number to 256 for data and 1024 for metadata Here the df during the backup started since 30min POOL ID STORED OBJECTS USED %USED MAX AVAIL cephfs-metadata 12 183 GiB 514.68k 550 GiB 7.16 2.3 TiB Before the backup the stored was 20GiB oau _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
