Description of problem: Enabling storage.linux-aio prevents adding of gluster volume as storage domain in RHEV-M. This option was enabled from group file. 

After disabling storage.linux-aio using volume set command, adding storage domain succeeded.


Version-Release number of selected component (if applicable):

rhev-hypervisor6-6.3-20120920.0.rhev31.auto33.el6.iso

# rpm -qa | grep rhevm
rhevm-webadmin-portal-3.1.0-16.el6ev.noarch

# rpm -qa | grep glusterfs
glusterfs-server-3.3.0rhsvirt1-5.el6rhs.x86_64
glusterfs-geo-replication-3.3.0rhsvirt1-5.el6rhs.x86_64
glusterfs-fuse-3.3.0rhsvirt1-5.el6rhs.x86_64
glusterfs-rdma-3.3.0rhsvirt1-5.el6rhs.x86_64
glusterfs-3.3.0rhsvirt1-5.el6rhs.x86_64



How reproducible: Consistently


Steps to Reproduce:
1. Create a gluster volume 
2. Set volume options from group virt file
3. Add gluster volume as a storage domain from RHEV-M
  
Actual results:

Adding storage domain errors out.

Expected results:

Shouldn't error out.

Additional info:

# cat /var/lib/glusterd/groups/virt 
cluster.eager-lock=enable
storage.linux-aio=enable
performance.read-ahead=disable
performance.stat-prefetch=disable
performance.io-cache=disable
performance.quick-read=disable