[Users] Permission denied on disk image file !!

Hi Guys Any know issue why we are not able to start VM due to permission issue on disk image file .. as per docs ownership should be vdsm:kvm byt not sure why its showing below used - both ovirt-node-iso-3.0.1-1.0.1.vdsm.el6 & ovirt-node-iso-3.0.1-1.0.2.vdsm.el6 same issue [ using NFS Domain ] VM n0001vdap is down. Exit message: internal error process exited while connecting to monitor: qemu-kvm: -drive file=/rhev/data-center/d09d8a3e-8ab4-42fc-84ec-86f307d144a0/1a04e13a-0ed4-40d6-a153-f7091c65d916/images/44e3fc9b-0382-4c11-b00c-35bd74032e9a/34542412-ed50-4350-8867-0d7d5f8127fd,if=none,id=drive-virtio-disk0,format=raw,serial=44e3fc9b-0382-4c11-b00c-35bd74032e9a,cache=none,werror=stop,rerror=stop,aio=threads: *could not open *disk image */rhev/data-center* /d09d8a3e-8ab4-42fc-84ec-86f307d144a0/1a04e13a-0ed4-40d6-a153-f7091c65d916/* images*/44e3fc9b-0382-4c11-b00c-35bd74032e9a/34542412-ed50-4350-8867-0d7d5f8127fd: *Permission denied* [root@node1 44e3fc9b-0382-4c11-b00c-35bd74032e9a]# ls -lh total 1.1M -rw-rw----+ 1 *vdsm 96* 6.0G 2013-10-15 05:47 34542412-ed50-4350-8867-0d7d5f8127fd -rw-rw----+ 1 *vdsm 96* 1.0M 2013-10-15 05:47 34542412-ed50-4350-8867-0d7d5f8127fd.lease -rw-rw-rw-+ 1 *vdsm 96* 268 2013-10-15 05:47 34542412-ed50-4350-8867-0d7d5f8127fd.meta As it doesn't allow us o change permissions any alternate way for this ?or do I need to manually set permissions in *"/etc/libvirt/qemu.conf"* alos ther is no such *group *with* "96"* .. so from where it picks this config . Another question is related to SELINUX config change for below 2 parameters to recover from error "*internal error Failed to open socket to sanlock daemon: Permission denied*" I saw some where this is fixed but not sure why it appears VDSM should take care of this auto setsebool -P virt_use_sanlock=on setsebool -P virt_use_nfs=on