Veritas Cluster Server Bundled Agents Reference Guide
Veritas⢠Cluster Server Bundled Agents Reference Guide - Symantec
Veritas⢠Cluster Server Bundled Agents Reference Guide - Symantec
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Storage agents<br />
Mount agent<br />
27<br />
Mount agent<br />
Note that if the shared disk is reserved by another application, the DiskReservation<br />
agent resets the disk reservation. If you use the command hastop -all -force<br />
to stop HAD on a system, the system holds reservation to the disk even after HAD<br />
is stopped and the disk is not visible from any other system. To see the shared<br />
disk from other systems, bring down the DiskReservation resource gracefully,<br />
using the command hastop -all. You could also use the havol utility to remove<br />
the reservation on the shared disks. See the description of the havol utility in the<br />
<strong>Veritas</strong> <strong>Cluster</strong> <strong>Server</strong> Administrator's <strong>Guide</strong> for instructions.<br />
The Mount agent brings a basic disk mount point online, monitors it, and takes<br />
it offline. When a shared disk fails over to another system, the Mount agent ensures<br />
that the new system accesses the volume in the same way it was accessed before<br />
failover. The Mount agent ensures a consistent device path by mounting the<br />
volume with the same mount path (drive letter) on the new system. The agent<br />
also ensures proper dismounting from a failed system when a resource or group<br />
is taken offline. When a disk partition is mounted, VCS creates an administrative<br />
share to enable remote administration of the disk. Note that the volume to be<br />
monitored using the Mount agent must not be mounted multiple times.<br />
The Mount agent supports basic disks only. VCS supports dynamic disks configured<br />
and controlled by SFW. To mount and unmount dynamic disks, use the MountV<br />
agent.<br />
See “MountV agent” on page 35.<br />
The Mount agent supports intelligent resource monitoring and uses Intelligent<br />
Monitoring Framework (IMF) for resource state change notifications. The agent<br />
uses the PnP notifications generated by the operating system. For example, PnP<br />
notifications are generated for volume arrival or departure, volume failure, and<br />
file system notifications.<br />
For more information about IMF, refer to the <strong>Veritas</strong> <strong>Cluster</strong> <strong>Server</strong> Administrator’s<br />
<strong>Guide</strong>.<br />
Note: This agent is not supported in an SFW environment.<br />
Dependency<br />
The Mount resource depends on the DiskRes resource.
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