I think the simplest way is to get a new LUN and migrate the VM disks to it.
Once the 2 old LUNs are free  - you can release them both.

Best Regards,
Strahil Nikolov

On Jul 4, 2019 12:06, Nathanaël Blanchet <blanchet@abes.fr> wrote:

Hello

We made a mistake at the conception of our storage domain and we aggreggated two FC luns like so:

We need to retrieve one of the two luns for other use, is there a way to easy detach one of the two luns from the VG ?


-- 
Nathanaël Blanchet

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