My Oracle Support Banner

Tuning the fp and fcp driver timeouts for faster path failover (Doc ID 1002789.1)

Last updated on OCTOBER 05, 2022

Applies to:

Sun Storage Traffic Manager Software - Version 3.0 and later
Solaris Operating System - Version 8 and later
All Platforms


These values determine how long the host will wait before offlining the device, after which the multi-pathing module (e.g. Sun STMS a.k.a. MPxIO) starts the failover process. The previously fixed values have now been made into tunables, and can be configured for a faster failover process, but please see the warnings below.

The Sun SAN Foundation Suite driver stack (also known as "Leadville", STMS or MPXIO) has two timers built-in, to offline devices when they go missing. When the link goes offline or there is a change in the configuration, these timers start ticking and when they expire, the host offlines the devices via that path.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.