Apple Xserve RAID: Using RAID 1.2 Admin and Disk Utility - Manual (Page 30)

30 Chapter 3 Monitoring Status and Changing Settings
Setting Fibre Channel Speed and Topology
The default settings for fibre channel speed and topology are auto-negotiation and
auto-topology. If you have a requirement for fixed settings, you can use RAID Admin to
adjust settings on Xserve RAID systems and Fibre Channel Utility to adjust settings on a
Macintosh or Xserve host.
To adjust the fibre channel settings for an Xserve RAID system:
1 Open RAID Admin and click Settings.
2 If necessary, enter the management password and click OK.
3 In the Settings window, click the Fibre Channel button.
4 Click the buttons for the settings you want to change.
• Change the Speed setting for auto-negotiate or a fixed speed.
• Change the Topology setting for auto-topology or a fixed topology. Consult your
network administrator if you aren’t sure whether to change this setting.
5 Click OK.
6 In the confirmation window, click OK.
Note: The fibre channel changes take effect when the Xserve RAID system restarts.
Data availability will be interrupted during the RAID controller’s restart.