Switch parameters, Domain id, Preferred – HP StorageWorks 2.140 Director Switch User Manual
Page 92: Insistent

Configuring the director
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3.
Use information in the next section, ”
” on page 92, to change settings as
required for parameters in this dialog box.
4.
After you change settings, click Activate.
5.
Set the director on line. For instructions, see the ”
Switch parameters
Configure the following parameters as required by your fabric.
Domain ID
The domain identification is a numeric value (1 though 31) that provides a unique identification for
the switch in a fabric. A fabric switch cannot contain the same domain ID as another switch or their
E_Ports will segment when they try to join.
In the Configure Switch Parameters dialog box, a box is provided to enter a preferred domain ID
and a check box is provided to enable this ID as an insistent domain ID.
Preferred
Use this field to set a unique preferred domain ID for the director. Fibre Channel addresses in the
switch include this preferred domain ID, which creates a unique identification for the switch in the
fabric. The default value is 1. Set a preferred value of 1 through 31.
The preferred domain ID must be unique for each switch in a fabric. If two switches have the same
preferred domain ID, the E_Ports will segment, causing the fabric to segment.
Insistent
Click the Insistent check box to remove or add a check mark. The default state is disabled (no
check mark). When a check mark is displayed, the domain ID configured in the Preferred
Domain ID box becomes the active domain identification when the fabric initializes.
NOTE:
This option is required if Enterprise Fabric Mode (optional SANtegrity Binding feature) is
enabled. See ”
” on page 178 for details.
NOTE:
If you enable Insistent Domain while the switch or director is on line, the Preferred Domain
ID will change to the current active domain ID (if the IDs are different).
CAUTION:
If a switch with a duplicate domain ID exists in the fabric, the E_Ports on both switches
will segment when they try to join.