Which storages support linking clones?

[zeebeedee]

I tried to 'linked' clone VM with windows7 inside, stored on rbd, and then clone fails to boot with BSOD: drive not found. Is it a bug, or rbd does not support linked clones?
Thanks!

 

[spirit]

it's working with rbd,zfs,sheepdog,raw ,qcow2 for the template image.

it should work without any problem with rbd/ceph .

do you use librbd or krbd ?

 

[zeebeedee]

Sorry, I don't know how to determine what I am using librbd or krbd.
In datacenter storage config KRBD checkbox is set.
Do I need to use non KRBD storage for templates and linked clones?

 

[spirit]

Sorry, I don't know how to determine what I am using librbd or krbd.
In datacenter storage config KRBD checkbox is set.
Do I need to use non KRBD storage for templates and linked clones?

yes, maybe krbd don't support yet clones . I need to check that.
Generally features are coming first to librbd, and are backported to krbd later.

I'll do tests next week

 

[wolfgang]

Krdb do not support clones yet.
I'm work on that at the moment.

 

[spirit]

Krdb do not support clones yet.
I'm work on that at the moment.

maybe it's a regression , because it seem to be supported since kernel 3.10.

http://workbench.dachary.org/ceph/ceph/commit/3fbcf5e2658814ce39812a973655ef7ac7619cd8