Hi,

I'm currently testing our the RC2 with ceph backed rbd devices, which works perfectly for us on 8.2.1. After installation I tried to add an existing shared storage, without success. Then I tried to create a new one and ran into following problem. As you see I can create a volume group manually without a problem.

xe sr-create fails:

xe sr-create name-label="RC2StorageTest" shared=true type=lvm device-config:device=/dev/rbd0
Error code: SR_BACKEND_FAILURE_77
Error parameters: , Logical Volume group creation failed,

vgcreate from commandline works:

vgcreate RC2StorageTest /dev/rbd0
Physical volume "/dev/rbd0" successfully created.
Volume group "RC2StorageTest" successfully created

If I repeat the xe sr-create after manually creating a VG the VG will be removed by xe sr-create, but is still failing with the same error.

Any idea where to look to solve this issue?