Apple Xsan 1.4 - Manual (Page 124)

124 Chapter 5 Managing Metadata Controllers
Switching to a Standby Controller
You can force an active metadata controller to turn over control of a volume to a
standby controller using the cvadmin command or by stopping the file system
manager process for the volume.
To switch a volume to a standby controller:
1 Open Terminal (in /Applications/Utilities/) on any controller or client connected to the
SAN.
2 In Terminal, type:
$ sudo cvadmin -e ”fail volume“
where volume is the name of an Xsan volume.
To see a list of volumes hosted by a controller, open Terminal on the controller and
type:
$ sudo cvadmin -e select
To see which controller is hosting a volume, open Xsan Admin, select the volume, and
click Overview.