director 2/64 installation guide

2–46 director 2/64 installation guide
Installing and Configuring the Director 2/64
Domain ID
The domain identification is a value between 1 and 31 that provides a unique
identification for the director in a fabric. A fabric director cannot contain the same
domain ID as another director or their E_Ports will segment when they try to join.
In the Configure Switch Parameters dialog box, a field is provided to enter a
preferred domain ID and a check box is provided to enable this ID as an insistent
domain ID.
Preferred
NOTE: To change this value, you must first set the director offline. Choose Set Online State
from the Maintenance menu to display the Set Online State dialog box, then click Set Offline.
Be sure to set the director back online after you change this value.
Use this field to set the a unique domain ID for the director. The default value is 1. Set
a value between 1 and 31. When a director comes online with a preferred ID, it
requests an ID from the fabric’s principal director (indicating its preferred value as
part of the request). If the requested domain ID is not allocated to the fabric, the
domain ID is assigned to the requesting director. If the requested domain ID is already
allocated, an unused domain ID is assigned. Note that you must set the director offline
before you can change to the preferred domain ID.
The preferred domain ID must be unique for each director and switch in a fabric. If
two switches or directors have the same preferred domain ID, the E_Ports segment,
causing the fabric to segment.
For more information on domain ID, refer to the section on domain ID assignment for
multiswitch fabrics in the hp StorageWorks SAN high availability planning guide for
details.
Insistent
This option is not supported unless the SANtegrity binding feature is installed. Click
the check box to remove or add a check mark. The default state is disabled (no check
mark).
When a check mark displays, the domain ID configured in the Preferred Domain ID
field will become the active domain identification when the fabric initializes. See the
following notes:
• This option is required if Enterprise Fabric Mode (optional SANtegrity binding
feature) is enabled.
• If you enable Insistent Domain while the switch or director is online, the Preferred
Domain ID will change to the current active domain ID if the IDs are different.