Updated sanlock packages that add multiple enhancements are now available for Red Hat Enterprise Linux 6.
The sanlock packages provide a shared disk lock manager that uses disk paxos to manage leases on shared storage. Hosts connected to a common Storage Area Network (SAN) can use sanlock to synchronize the access to the shared disks. Both libvirt and vdsm can use sanlock to synchronize access to shared virtual machine (VM) images.
The sanlock packages have been upgraded to the latest upstream version, which provides a number of enhancements over the previous version. (BZ#782600
All users of sanlock are advised to upgrade to these updated packages, which add these enhancements.