Apple Xsan 1.0 - Manual (Page 64)

64 Chapter 5 Managing Metadata Controllers
Adding a Controller
You can add one or more standby controllers to a SAN so that volumes are still
available if the primary controller fails.
Any computer set to act as a controller can also function as a client. So, if you don’t
want to dedicate a computer to act solely as a standby controller, you can use an
existing client.
To add a controller:
1 If you haven’t already, connect the new controller computer to the SAN’s Fibre Channel
and Ethernet networks and install the Xsan software.
2 In Xsan Admin, select the SAN in the SAN Components list and click Setup.
3 Select the new controller in the computer list and click Edit.
4 Choose Controller from the Role pop-up menu.
If this computer has just been added to the SAN, also enter a serial number and choose
the Ethernet interface the controller will use to communicate with other devices on the
SAN.
5 Choose a failover priority and 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.
LL0192.book Page 64 Thursday, July 29, 2004 5:20 PM