Switch parameters, Domain id, Preferred – HP StorageWorks 2.64 Director Switch User Manual
Page 92: Insistent
Configuring the director
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Ordinarily, you do not need to change values in this dialog box from their defaults. The only
exception is the Preferred Domain ID. Change this value if the director will participate in a
multiswitch fabric.
1.
Use information in the next section, ”
” on page 92, to change settings as
required for parameters in this dialog box.
2.
After you change settings, click Activate.
3.
Set the director online. For instructions, see the ”
Switch parameters
Configure the following parameters as required by your fabric.
Domain ID
The domain identification is a value between 1 and 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 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. 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 switch comes online with a preferred ID, it requests an ID from the
fabric’s principal switch (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 or
switch. If the requested domain ID is already allocated, an unused domain ID is assigned. You must
set the switch or director offline before you can change the preferred domain ID.
The preferred domain ID must be unique for each director and switch in a fabric. If two directors 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 operational 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).