http://192.168.180.206:8001/ 2026-05-12T22:01:28+00:00 http://192.168.180.206:8001/ http://192.168.180.206:8001/_media/wiki:dokuwiki.svg text/html 2024-02-14T07:03:15+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ceph:db:adding?rev=1707894195&do=diff DB adding NOTE: if partition is formatted as LVM PV, it is possible to choose this partition for DB from Proxmox UI when creating OSD: pvcreate /dev/sda5 vgcreate ceph-db-40gb /dev/sda5 Adding journal DB/WAL partition If an OSD needs to be shutdown for maintenance (i.e. adding new disc), please set text/html 2025-03-30T19:39:07+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ceph:db:move_db_disks?rev=1743363547&do=diff Move DB to bigger storage I.e: to move from 4GB partition to 30GB partition in case of spillover: 1 OSD(s) experiencing BlueFS spillover osd.3 spilled over 985 MiB metadata from 'db' device (3.8 GiB used of 4.0 GiB) to slow device lvdisplay --- Logical volume --- LV Path /dev/ceph-66ad9fa6-0f65-4fc0-baeb-41089a509347/osd-block-4a9e142e-ed4d-4890-a018-5651c36071a5 LV Name osd-block-4a9e142e-ed4d-4890-a018-5651c36071a5 --- Logical volume --- LV Path… text/html 2024-10-17T06:24:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ceph:db:move_db?rev=1729146257&do=diff Move DB to new drive blkid /dev/nvme0n1p3: PARTLABEL="DB" PARTUUID="b30d904f-94ce-4776-982a-db5947dac1cd" ceph osd set noout systemctl stop ceph-osd@3 systemctl disable ceph-osd@3 ddrescue -f -n -vv c66f0c74-12b2-aa42-afc4-f4bd12bfa87c DB.img<NEW> text/html 2024-01-18T15:01:28+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ceph:db:usage?rev=1705590088&do=diff DB usage Check DB size and usage ceph daemon osd.$(ls -1 /var/lib/ceph/osd/ceph-?/../ | cut -d "-" -f 2) perf dump | jq ".bluefs | {db_total_bytes, db_used_bytes}" 1st machine: { "db_total_bytes": 3221217280, "db_used_bytes": 1162870784 }