Apple Xsan 1.1 - Manual (Page 83)

Chapter 5 Managing Metadata Controllers 83
8 If you’re using a site-licensed serial number, type the registered license holder and
organization in the “Registered to” and Organization fields. Be sure to type these
exactly as they were provided when you purchased the license.
9 Click OK.
Setting Controller Failover Priority
When the primary controller for a volume fails, Xsan uses the failover priorities of the
available standby controllers to decide which one to switch to.
To set a controller’s failover priority:
1 Open Xsan Admin, select the SAN in the SAN Components list, click Setup, then click
Computers.
2 Select the controller in the computer list and click Edit.
3 Choose a failover priority and click OK.
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:
$ cd /Library/Filesystems/Xsan/bin
$ 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:
$ cd /Library/Filesystems/Xsan/bin
$ sudo ./cvadmin -e select
To see which controller is hosting a volume, open Xsan Admin, select the volume, and
click Overview.