An administrator has configured multi-pathing using an FC array in an active-active
configuration. What is the expected behavior of the host when a failed preferred path
becomes available using the Fixed path selection policy for this array type?
A.
It automatically reverts to the preferred path.
B.
It continues using the current path until it is manually reverted.
C.
It resumes load balancing across all available paths.
D.
It reverts to the preferred path after the host has been restored and rebooted.
Fixed
VMkernel resumes using the preferred path when connectivity is restored.
VMkernel attempts to resume by using the preferred path. This action can cause path thrashing or failure when another SP now owns the LUN.
Fixed (VMware)
The host uses the designated preferred path, if it has been configured. Otherwise, it selects the first working path discovered at system boot time. If you want the host to use a particular preferred path, specify it manually. Fixed is the default policy for most active-active storage devices.
Note
If the host uses a default preferred path and the path’s status turns to Dead, a new path is selected as preferred. However, if you explicitly designate the preferred path, it will remain preferred even when it becomes inaccessible.