HP 316095-B21 - StorageWorks Edge Switch 2/24 Release Note page 10

Important Information
Hard Zoning
Hard Zoning is a security enhancement in firmware Version 05.01.00-24 that
prevents ports from accessing devices outside their zones. Hard Zoning is enabled
by default when using firmware Version 05.01.00-24 or greater and cannot be
disabled. All HP-approved host bus adapters (HBAs) limit access to devices
within their zones, so you will not see a change in fabric behavior unless you are
using nonstandard HBAs. Hard Zoning improves security against intruders that
load nonstandard HBA drivers.
Hard Zoning is compatible with legacy zone definitions, including World Wide
Name (WWN) and port zoning. You can use your existing zones and zone sets
without any changes. There are no changes to the zoning interfaces, so you do not
need to modify your zone management practice, documentation, or retrain Storage
Area Network (SAN) administrators.
Hard Zoning controls access at the ingress port. When a port attempts to send a
frame to a destination outside its zones, the frame is blocked. A Class 2 frame will
be fabric rejected, and a Class 3 frame will be dropped.
Zoning Change RSCN Control
Normally, when a zone set is activated, a fabric format domain Register State
Change Notification (RSCN) is sent to all devices in the fabric. With firmware
Version 05.01.00-24. you can disable these RSCNs from being sent. This is done
using the Suppress RSCNs on zone set activations check box on the Configure
Switch Parameters dialog box.
This feature significantly changes the normal behavior of the fabric. Devices will
have no warning when zones change and will not automatically update their
zoning information. The ability to suppress RSCNs is disabled (check box is not
selected) by default. This feature can be configured through HA-Fabric Manager
(HAFM), Embedded Web Server (EWS), and the Command Line Interface (CLI).
Embedded Web Server (EWS) Changes
With firmware Version 05.01.00-24. the EWS now provides support for
configuration of Port Binding. The zoning interface has also been enhanced to
allow you to easily add members to a zone that are not directly attached to the
locally managed switch. You are presented with a list of all devices that are logged
in to the fabric. You can select these devices for addition to a zone.
10 HA-Fabric Manager Release Notes