HP StorageWorks 2.32 Edge Switch - Manual (Page 177)

Edge Switch Element Manager user guide 177
Zoning with Switch Binding enabled
Note that SANtegrity Binding has no effect on existing zoning configurations. However, if a device
WWN is in a specific zone, but the WWN is not on the Switch Membership List, the device cannot
log in to the director or switch port and cannot connect to other devices in the zone when switch
binding is enabled.
Enterprise Fabric Mode
The Enterprise Fabric Mode is available on the Fabrics menu of HAFM if the SANtegrity Binding
feature key is installed. This option automatically enables the 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 off line or on
line.
The following features and parameters are enabled by the Enterprise Fabric Mode option:
• Fabric Binding—This SANtegrity Binding feature is enabled through the Fabrics menu in
HAFM. This feature allows or prohibits switches and directors from merging with a selected
fabric. See ” Enable/disable and Online State functions ” on page 172 for details on
enabling/disabling Fabric Binding with Enterprise Fabric Mode enabled.
• Switch Binding—This SANtegrity Binding feature is enabled through the Configure menu in
the Element Manage.r This feature allows or prohibits switches and/or directors from connecting
to switch E_Ports, and prohibits devices from connecting to F_Ports. See ” Enabling or disabling
Switch Binding ” on page 174 for details on enabling/disabling Switch Binding with Enterprise
Fabric Mode enabled.
• Rerouting Delay—This 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 provided that 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 because frames sent over the new, shorter path may arrive ahead of
older frames still en 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, the Rerouting Delay option n is automatically enabled and
cannot be disabled unless the switch is off line. 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 HBAs 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.