Proxmox V5.2 - Ceph - Unused disk

[TwiX]

Hi,

Spoiler: pveversion -v

proxmox-ve: 5.2-2 (running kernel: 4.15.17-3-pve)
pve-manager: 5.2-3 (running version: 5.2-3/785ba980)
pve-kernel-4.15: 5.2-3
pve-kernel-4.15.17-3-pve: 4.15.17-13
pve-kernel-4.13.13-2-pve: 4.13.13-33
ceph: 12.2.5-pve1
corosync: 2.4.2-pve5
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.0-8
libpve-apiclient-perl: 2.0-4
libpve-common-perl: 5.0-34
libpve-guest-common-perl: 2.0-17
libpve-http-server-perl: 2.0-9
libpve-storage-perl: 5.0-23
libqb0: 1.0.1-1
lvm2: 2.02.168-pve6
lxc-pve: 3.0.0-3
lxcfs: 3.0.0-1
novnc-pve: 1.0.0-1
proxmox-widget-toolkit: 1.0-19
pve-cluster: 5.0-27
pve-container: 2.0-23
pve-docs: 5.2-4
pve-firewall: 3.0-12
pve-firmware: 2.0-4
pve-ha-manager: 2.0-5
pve-i18n: 1.0-6
pve-libspice-server1: 0.12.8-3
pve-qemu-kvm: 2.11.1-5
pve-xtermjs: 1.0-5
qemu-server: 5.0-29
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.9-pve1~bpo9

I built a ceph pool with checked option 'add storages'

I restored a KVM virtual machine on dedicated KVM ceph pool (ceph_vm).
I noticed that GUI shows me a unused disk on ceph_ct storage which is same disk image !

 

[Alwin]

Can you please post your storage configuration?

 

[TwiX]

Contents of ceph_ct and ceph_vm :

I only have 3 KVM virtual machines on that fresh cluster, and 2 of them have their own true disk image as unused disk on ceph_ct storage.

 

[TwiX]

rbd: ceph_vm
        content images
        krbd 0
        pool ceph

rbd: ceph_ct
        content rootdir
        krbd 1
        pool ceph

 

[Alwin]

Try a 'qm rescan', it may remove the entry from the config. Did the VM already exist on the cluster?

 

[TwiX]

Thanks for your reply, I just did it but the unused disk still there.

This is a new cluster without any VMs. I restored 3 VMs from .vma backups.

 

[Alwin]

There exists already a bug report for this. Subscribe to the bug ticket to get updates.
https://bugzilla.proxmox.com/show_bug.cgi?id=1650

 

[TwiX]

Thanks, I will create 2 pools, one for vm and the other for ct.

In the meantime, you should ask user in GUI if the pool is dedicated to ct or vm (not for both), add storage with krbd or not if required. But one pool per kind of virtualization type.

 

[Alwin]

In the meantime, you should ask user in GUI if the pool is dedicated to ct or vm (not for both), add storage with krbd or not if required. But one pool per kind of virtualization type.

This should not be necessary, the content type of the storage should work as a filter. If you don't need the krbd (only KVM) then the storage 'ceph_vm' should suffice.

 

[TwiX]

Yes but in that case the option 'add storages' create 2 storages and people may be affected by this issue...

 

[Alwin]

There is a patch available and should soon come in a package.
https://git.proxmox.com/?p=qemu-server.git;a=commit;h=4771526af1d8b324f9dbf101026f975c7a1a2a55