2.4.3 Inheriting a file system

HA Monitor inherits a file system on the shared disk by mounting and unmounting it. The mount and unmount operations are controlled by HA Monitor.

Connecting the file system: HA Monitor connects the shared disk and then connects the file system. The file system is mounted when the active server starts so that the active server can use the file system. When the file system is mounted, its consistency is checked by using the fsck command of the OS (or the xfs_repair command if the file system of the shared disk is XFS in RHEL7 or a later version).
Disconnecting the file system: In the event of a failure, HA Monitor inherits the file system by unmounting it from the host resulting in the failure before separating the shared disk and then mounting the file system from the host that inherits job processing. If there are processes that are using the file system when it is unmounted, HA Monitor uses the fuser OS command to forcibly terminate those processes.