Why creating disk/snapshot in RHV is failing with error "existing signature left on the device"

Solution Verified - Updated -


  • Creating disk/snapshot in RHV is failing with below error while it creates the backend LV.
vdsm.storage.exception.CannotCreateLogicalVolume: Cannot create Logical Volume: "vgname=641bd3f8-747f-4199-8c2c-f23ba87a4cb7 lvname=7f93ab9a-41c9-4dba-af91-56fb07b349b2 err=['WARNING: dos signature detected on /dev/641bd3f8-747f-4199-8c2c-f23ba87a4cb7/7f93ab9a-41c9-4dba-af91-56fb07b349b2 at offset 510. Wipe it? [y/n]: [n]', '  Aborted wiping of dos.', '  1 existing signature left on the device.', '  Failed to wipe signatures on logical volume 641bd3f8-747f-4199-8c2c-f23ba87a4cb7/7f93ab9a-41c9-4dba-af91-56fb07b349b2.', '  Aborting. Failed to wipe start of new LV.']"


  • Red Hat Virtualization 4.4.6.

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