I think the issue is with the permissions defined on the gpfs file system. The cinder-volume process is running as cinder user; if the cinder user has permission to delete/rename files from $gpfs_mountpoint_base, then the operation will succeed.
Can you check how permissions are defined for the gpfs_mountpoint_base directory?
I think the issue is with the permissions defined on the gpfs file system. The cinder-volume process is running as cinder user; if the cinder user has permission to delete/rename files from $gpfs_mountpoin t_base, then the operation will succeed.
Can you check how permissions are defined for the gpfs_mountpoint _base directory?