Apple Xsan 1.0 - Manual (Page 65)

Chapter 5 Managing Metadata Controllers 65
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).
2 If you are not working at the SAN controller computer, use SSH to log in to the
controller remotely:
$ ssh user@computer
where user is an administrator user on the controller computer and computer is the
controller’s name or IP address.
3 In Terminal, type:
$ cd /Library/Filesystems/Xsan/bin
$ sudo ./cvadmin fail volume
where volume is the name of an Xsan volume.
To see a list of volumes hosted by the controller, type:
$ sudo ./cvadmin select
To see which controller is hosting a volume, open Xsan Admin, select the volume, and
click Overview.
LL0192.book Page 65 Thursday, July 29, 2004 5:20 PM