HP StorageWorks 2.64 Director Switch - Manual (Page 73)

Configuring the Product
73 Embedded Web Server User Guide
If Rerouting Delay is enabled, traffic ceases in the fabric for the time specified in
the E_D_TOV field of the Configure Fabric Parameters dialog box (for more
information, see “
Configuring Fabric Parameters ” on page 41). This delay enables
frames sent using the old path to arrive at their destination before frames begin
traversing the new path.
If Enterprise Fabric Mode is enabled, Rerouting Delay is automatically enabled
and cannot be disabled unless the director or switch is offline. In this case,
disabling Rerouting Delay also disables Enterprise Fabric Mode. For information
about configuring and enabling Rerouting Delay, see “
Configuring Operating
Parameters ” on page 38.
Domain RSCNs and the Enterprise Fabric Mode
Domain register for state change notifications (domain RSCNs) are sent between
end devices in a fabric to provide additional connection information to host bus
adapters (HBA) and storage devices. As an example, this information might be
that a logical path has been broken because of a physical event, such as a fiber
optic cable being disconnected from a port.
If Enterprise Fabric Mode is enabled, Domain RSCNs are automatically enabled
and cannot be disabled unless the director or switch is offline. In this case,
disabling Domain RSCNs also disables Enterprise Fabric Mode. For information
about enabling Domain RSCNs, see “
Configuring Operating Parameters ” on
page 38.
Insistent Domain Identification (ID) and the Enterprise Fabric Mode
If enabled, Insistent Domain ID specifies that the preferred domain ID configured
for the product will be the product’s active domain identification when the fabric
initializes. For information about configuring the preferred domain ID, see
“
Configuring Operating Parameters ” on page 38.
A static and unique domain ID is required by the Fabric Binding feature because
the feature's FBML identifies switches by WWN and domain ID. If a duplicate
preferred domain ID is used, then made insistent, warnings display when directors
and switches are added to an FBML.
If Fabric Binding or Enterprise Fabric Mode is enabled, Insistent Domain ID is
automatically enabled and cannot be disabled unless the director or switch is
offline. In this case, disabling Insistent Domain ID disables Enterprise Fabric
Mode and Fabric Binding. For information about configuring the domain ID and
Insistent Domain ID, see “
Configuring Operating Parameters ” on page 38.