HP StorageWorks 2.64 Director Switch - Manual (Page 164)

Optional features 164
device cannot log in to the director or switch port and cannot connect to other devices in the zone
with Switch Binding enabled.
Enterprise fabric mode
Enterprise Fabric Mode is an option available on the Fabrics menu in the HAFM application if the
SANtegrity Binding feature key is installed. This option automatically enables the following features
and operating parameters that are necessary in multiswitch Enterprise Fabric environments. Note
that there are specific requirements for disabling these parameters and features when the director
or switch is offline or online.
Features and parameters enabled
Fabric Binding
This is a SANtegrity Binding feature enabled through the Fabrics menu in HAFM that allows or
prohibits switches and directors from merging with a selected fabric. See ” Enabling and disabling
and online state functions ” on page 163 for details on enabling/disabling Fabric Binding with
Enterprise Fabric Mode enabled.
Switch Binding
This is a SANtegrity Binding feature enabled through the Configure menu in the Element Manager
that allows or prohibits switches and/or directors from connecting to switch E_Ports, devices from
connecting to F_Ports. See ” Enabling and disabling and online state functions ” on page 163 for
details on enabling/disabling Switch Binding with Enterprise Fabric Mode enabled.
Rerouting Delay
Rerouting delay is a parameter in the Configure Switch Parameters dialog box, available from the
Configure menu in the Element Manager.
Rerouting Delay ensures that frames are delivered through the fabric in order to their destination. If
there is a change to the fabric topology that creates a new path (for example, a new switch is
added to the fabric), frames may be routed over this new path if its hop count is less than a
previous path with a minimum hop count. This may result in frames being delivered to a destination
out of order since frames sent over the new, shorter path may arrive ahead of older frames still in
route over the older path. 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 (Configure menu).
This delay enables frames sent on the old path to exit to their destination before new frames begin
traversing the new path.
If Enterprise Fabric Mode is enabled, this parameter 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.
Domain RSCNs
This is a parameter in the Configure Switch Parameters dialog box, available from the Configure
menu in the Element Manager. 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 and storage devices. As an example, this information might be that a logical path has