6.2 HP IBRIX 9000 Storage Network Best Practices Guide (TA768-96069, December 2012)

Sample ifconfig output for FSN 2after migrating the FM from FSN 1 to FSN 2:
User VIF failover
To provide high availability to File Clients, HP recommends that IBRIX user networks use VIFs for
File Client requests. One file serving node is selected as the primary FSN for the VIF and File Clients
then use this VIF when requesting files. The primary FSN is usually the node that returns those files.
Additionally, a second cluster FSN is set up a backup for that VIF, but the VIF will be in an inactive
state until it is needed for failover.
When the primary FSN is degraded and can no longer satisfy client requests, its User VIF can be
programmatically disabled, and the backup FSN can enable its User VIF. Any future client traffic
is automatically redirected to the backup FSN without the client needing to participate in the
failover. When the primary FSN is later restored to operation, the User VIF can be disabled on
the backup FSN and re-enabled on the primary FSN, causing the client to automatically switch
back to using the primary FSN for file requests.
12 Overview of HP IBRIX 9000 Series networking