VSAN Free on Proxmox

[ticktok]

I have successfully created a shared LVM volume on a Proxmox cluster of 2 nodes with a third server as a witness via QDevice.
The performance is about the same as my original Windows based 2 node cluster.
The issue I have is thin provisioning of the VM disks, with the Windows versions disk were thin provisioned. I used the Starwind Converted to convert the .vhdx to .qcow2 disks.
After I transferred these disks to a Proxmox host and then imported them:-
qm importdisk 104 /root/vm-tfs.qcow2 vg-vms
where vg-vms is the shared Starwind storage the images were then thickly provisioned.
Am I doing something wrong?

[yaroslav (staff)]

For CVM, you need to install and set up the VSAN plugin in Proxmox (recreating the LVM will be needed) https://www.starwindsoftware.com/resour ... ion-guide/

[ticktok]

Thanks for the update, when you say you'll need to recreate the LVM - I presume this is destructive and all the VM disks will need to be exported and then imported later?
Or is it auto-magical and the VM disks can stay there?

[yaroslav (staff)]

Sadly, it is a destructive procedure.
UPD: QCOW cannot be created.

[ticktok]

Hi,
Thanks for the information after issuing the last command:-
pvesm add starlvm swlun -vgname vgt-vms -content images,rootdir -shared 1
the message I received was:-
Plugin "PVE::Storage::Custom::StarLvmPlugin" is implementing an older storage API, an upgrade is recommended

is this something to worry about??

I discovered I can't just migrate the disks from the old LVM to the new one, I suppose its convert to each disk to .qcow2 and then upload to the swlun??

[yaroslav (staff)]

Plugin "PVE::Storage::Custom::StarLvmPlugin" is implementing an older storage API, an upgrade is recommended

No, it is not a problem.

I discovered I can't just migrate the disks from the old LVM to the new one, I suppose its convert to each disk to .qcow2 and then upload to the swlun??

Yes, you can convert each disk to qcow2 from non-swlun device to a swlun one (try backing up and restoring the VM too).

[ticktok]

Hi,
After creating a new lun using the starlvm call vg-thin whenever I import a disk like:-
root@pve-rose:~# qm importdisk 107 /var/lib/vz/template/qcow/ubuntu-2404.qcow2 vg-thin --format qcow2
Plugin "PVE::Storage::Custom::StarLvmPlugin" is implementing an older storage API, an upgrade is recommended
importing disk '/var/lib/vz/template/qcow/ubuntu-2404.qcow2' to VM 107 ...
format 'qcow2' is not supported by the target storage - using 'raw' instead

It converts it to raw and is then not thin provisioned??
local-lvm disk useage

disks on local-lvm

vg-thin useage

disks on vg-thin