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--- vm:proxmox:ceph:db:move_db_disks [2024/02/18 16:14] – niziak
+++ vm:proxmox:ceph:db:move_db_disks [2025/03/30 21:39] (current) – niziak
@@ Line 59: / Line 59: @@
 --> Migrate to existing, Source: ['--devs-source', '/var/lib/ceph/osd/ceph-0/block.db'] Target: /var/lib/ceph/osd/ceph-0/block
 --> Migration successful.
+</code>
+Create (or resize) new PV,VG,LV for DB and attach it:
+<code bash>
+pvcreate /dev/nvme0n1p6
+vgcreate ceph-db-8gb /dev/nvme0n1p6
+OR
+vgextend ...
+lvcreate -n db-8gb -l 100%FREE ceph-db-8gb
+OR
+lvextend -l +100%FREE ceph-db/db
+ceph-volume lvm new-db --osd-id 0 --osd-fsid 024c05b3-6e22-4df1-b0af-5cb46725c5c8 --target ceph-db-8gb/db-8gb
+--> Making new volume at /dev/ceph-db-8gb/db-8gb for OSD: 0 (/var/lib/ceph/osd/ceph-0)
+Running command: /usr/bin/chown -h ceph:ceph /var/lib/ceph/osd/ceph-0/block.db
+Running command: /usr/bin/chown -R ceph:ceph /dev/dm-0
+--> New volume attached.
+</code>
+<code bash>
+ceph-volume lvm migrate --osd-id 0 --osd-fsid 024c05b3-6e22-4df1-b0af-5cb46725c5c8 --from data db --target ceph-db-8gb/db-8gb
+--> Migrate to existing, Source: ['--devs-source', '/var/lib/ceph/osd/ceph-0/block'] Target: /var/lib/ceph/osd/ceph-0/block.db
+--> Migration successful.
+</code>
+<code bash>
 systemctl start ceph-osd@3.service
 ceph osd unset noout
 </code>
-===== create new one =====
+===== OR: create new one =====