Procedure - HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual

— If you have three switches and set two to Default and one to Never Principal,
the switch with the Default setting and the lowest WWN becomes the
principal switch.
Note that at least one switch in a multi-switch fabric needs to be set as Principal or
Default. If all of the switches are set to Never Principal, all of the interswitch links
(ISLs) will segment. If all but one switch is set to Never Principal and the switch
that was Principal goes offline, then all of the other ISLs will segment.
NOTE: We recommend configuring switch priority as Default. If you are considering changing
this value to something other than the default, refer to sections on principal switch selection for
multi-switch fabrics in the hp StorageWorks SAN high availability planning guide for details.
In the Audit Log, you may notice that the Principal setting maps to a number code
of 1, Default maps to a number code of 254, and Never Principal maps to a
number code of 255. The number codes 2-253 are no longer in use.
• Interop Mode
Select the interoperability mode for the switch:
— Homogeneous Fabric - Select this mode if the fabric contains only HP Edge
Switches and Directors that are also operating in Homogeneous Fabric mode.
— Open Fabric 1.0 - Default. Select this mode if the fabric contains HP Directors
and Edge Switches and other open-fabric compliant switches. Select this
mode for managing heterogeneous fabrics.

Procedure

To configure fabric operating parameters
1. The switch must be offline to configure parameters in this dialog box. If it is not
and you activate values in this dialog box, a dialog box displays prompting you to
set the unit offline.
CAUTION: Setting the switch offline terminates all Fibre Channel connections.
To set the unit offline:
a. From the Product Manager window menu bar, select Maintenance > Set
Online State.
b. When the Set Online State dialog box displays, click Set Offline.
edge switch 2/24 product manager user guide
Configuring the Switch
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