HP 316095-B21 - StorageWorks Edge Switch 2/24 Instruction Manual

Release Notes
hp StorageWorks
Edge Switch
Product Version: FW V05.02.00-13
HAFM Notebook SW V07.01.00-09
HAFM 1U Appliance SW V07.02.00-09
Fourth Edition (December 2003)
Part Number: AA–RTDZD–TE/958–000284–004
These Release Notes contain late-breaking and supplemental information for the
HP StorageWorks Edge Switch 2/24 and Edge Switch 2/32.
For the latest version of these Release Notes and other edge switch documentation, access the
HP storage website at:
http://www.hp.com/country/us/eng/prodserv/storage.html .

2Edge Switch Release Notes
© Copyright 2001-2003 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited
to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be
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The information contained in this document is subject to change without notice.
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Nothing herein should be construed as constituting an additional warranty.
Printed in the U.S.A.
Edge Switch Release Notes
Fourth Edition (December 2003)
Part Number: AA–RTDZD–TE/958–000284–004

About this Document
3Edge Switch Release Notes
About this Document
These Release Notes contain late breaking and supplemental information for the
HP StorageWorks Edge Switch 2/24 and Edge Switch 2/32.
Be sure to read these Release Notes before installing an edge switch. This
information is periodically updated and available on the World Wide Web at:
http://www.hp.com/country/us/eng/prodserv/storage.html .
This section describes the content reflected in this document, including:
■Release Notes Information, page 4
■Intended Audience, page 5
■Firmware Version 05.02.00-13, page 5
■Other Edge Switch Documentation, page 5
■CD-ROM Directory Structure, page 7
■Supported Configurations, page 8
■Cable Requirements, page 9
■Important Information, page 10
■Known Issues, page 18

Release Notes Information
4Edge Switch Release Notes
Release Notes Information
These Release Notes cover the following major topics:
■Embedded Web Server access to modify zones is limited to first 255 zones,
page 18
■SNMP trap reports incorrect FRU position, page 18
■Certain Unauthorized Devices may Increase Response Time for Fabric
Operations Under Specific Conditions with the Edge Switch 2/24, page 18
■CTP Events for Edge Switch 2/24 Show Incorrect FRU Number, page 19
■HSG80 Transparent Mode Not Supported with IBM AIX, page 19
■HSG80 Transparent Mode Not Recommended with Controller in SCSI-3
Mode with HP-UX Operating Systems, page 19
■ISL Disconnect Causes NOS Error with the OpenVMS Operating Systems,
page 20
■Support for Speed Auto-Negotiate, page 20
■Ports May Accumulate Spurious Events, page 21
■Firmware Downloaded to the Edge Switch 2/24 Using HAFM Can
Occasionally Time Out, page 21
■Adding a Defective ISL Connection May Cause all ISLs to Segment Between
the Two Switches or Directors, page 21
■Possible Switch Reset After Power Failure or Power Off Sequence, page 22
■Erroneous Error Message When No Firmware File Selected, page 22
■A Device Cannot Send Frames to Itself After the Active Zone Set Is
Deactivated, page 22

Intended Audience
5Edge Switch Release Notes
Intended Audience
This document is intended for customers who purchased the HP StorageWorks
Edge Switch 2/24 and Edge Switch 2/32.
Firmware Version 05.02.00-13
Firmware Version 05.01.00-24 is the initial firmware released with the Edge
Switch 2/24 and Edge Switch 2/32. A copy of the latest version of the firmware,
05.02.00-13 (as of this date), is contained on the HP StorageWorks Edge Switch
Documentation and Firmware CD (Part Number 524-000001-003).The latest
firmware is also available on the HP website at:
http://www.hp.com/country/us/eng/prodserv/storage.html.
You need to upgrade Version 05.01.00-24 to Version 05.02.00-13 if Version
05.02.00-13 is not preloaded on the edge switch. For more information on
upgrading firmware versions, refer to the appropriate HP StorageWorks Edge
Switch Service Manual. The features of this firmware version are detailed in the
accompanying manuals.
Other Edge Switch Documentation
The documentation contained on the HP StorageWorks Edge Switch
Documentation and Firmware CD (Part Number 524-000001-003) was previously
released with firmware Version 05.01.00-24. The documentation applies to
firmware Version 05.01.00-24 and Version 05.02.00-13.
In addition to these Release Notes, HP provides the corresponding information
listed below:
■HP StorageWorks Edge Switch 2/24 Rack Mount Kit Installation Instructions,
AA-RTDGC-TE/958-000285-002
■HP StorageWorks Edge Switch 2/24 Flexport Upgrade Instruction,
AA-RTDHB-TE/958-000286-001
■HP StorageWorks Edge Switch 2/24 Installation Guide,
AA-RTDWB-TE/958-000283-001
■HP StorageWorks Edge Switch 2/24 Service Manual, AA-RTDXB-TE
■HP StorageWorks Edge Switch 2/24 Product Manager User Guide,
AA-RTDYB-TE

Other Edge Switch Documentation
6Edge Switch Release Notes
■HP StorageWorks Edge Switch Rack Mount Kit Installation Instructions,
AA-RT4MC-TE/958-000293-001
■HP StorageWorks Edge Switch 2/32 Flexport Upgrade Instruction,
AA-RS33C-TE/958-000291-001
■HP StorageWorks Edge Switch 2/32 Installation Guide,
AA-RSTZC-TE/958-000290-001
■HP StorageWorks Edge Switch 2/32 Service Manual, AA-RS2GC-TE
■HP StorageWorks Edge Switch 2/32 Product Manager User Guide,
AA-RS2HC-TE
■HP StorageWorks CLI Reference Guide for Directors and Edge Switches,
AA-RQ7AD-TE
■HP StorageWorks SNMP Reference Guide for Directors and Edge Switches,
AA-RQ7BD-TE
■HP StorageWorks SAN High Availability Planning Guide, AA-RS2DC-TE
■HP StorageWorks SAN Design Guide, AA-RMPNJ-TE
■HP StorageWorks Embedded Web Server User Guide, AA-RTDRB-TE
■ HP StorageWorks HA-Fabric Manager User Guide, AA-RS2CD-TE
■ HP StorageWorks HAFM Server for Windows 2000 Installation Guide,
AA-RT4KC-TE
■ HP StorageWorks HA-Fabric Manager Server Installation Guide,
AA-RU5FA-TE/958-000324-000
■ HP StorageWorks HA-Fabric Manager Release Notes,
AA-RUR6B-TE/958-000288-006
■ HP StorageWorks Director and Edge Switch Glossary, AA-RU5JA-TE

CD-ROM Directory Structure
7Edge Switch Release Notes
CD-ROM Directory Structure
The HP StorageWorks Edge Switch Documentation and Firmware CD contains
the following items:
CD-ROM Directory Structure for Edge Switch 2/24 and Edge Switch 2/32
Documentation
■Manuals.pdf – (HP StorageWorks Edge Switch 2/24 and Edge Switch 2/32
Documentation; links to all documents below and search function)
■Docs
— README.TXT – (HP Doc Structure; late breaking doc changes)
— AA-RTDWB-TE/958-000283-001 – (HP StorageWorks Edge Switch
2/24 Installation Guide)
— AA-RTDXB-TE – (HP StorageWorks Edge Switch 2/24 Service Manual)
— AA-RTDYB-TE – (HP StorageWorks Edge Switch 2/24 Product
Manager User Guide)
— AA-RSTZC-TE/958-000290-001 – (HP StorageWorks Edge Switch 2/32
Installation Guide)
— AA-RS2GC-TE – (HP StorageWorks Edge Switch 2/32 Service Manual)
— AA-RS2HC-TE – (HP StorageWorks Edge Switch 2/32 Product Manager
User Guide)
— AA-RQ7AD-TE – (HP StorageWorks CLI Reference Guide for Directors
and Edge Switches)
— AA-RQ7BD-TE – (HP StorageWorks SNMP Reference Guide for
Directors and Edge Switches)
— AA-RS2DC-TE – (HP StorageWorks SAN High Availability Planning
Guide)
— AA-RMPNJ-TE – (HP StorageWorks SAN Design Guide)
— AA-RS2CD-TE – (HP StorageWorks HA-Fabric Manager User Guide)
— AA-RTDRB-TE – (HP StorageWorks Embedded Web Server User
Guide)
— AA-RT4KC-TE – (HP StorageWorks HAFM Server for Windows 2000
Installation Guide)
— AA-RU5FA-TE/958-000324-000 – (HP StorageWorks HA-Fabric
Manager Server Installation Guide)

Supported Configurations
8Edge Switch Release Notes
— AA-RU5JA-TE – (HP StorageWorks Director and Edge Switch Glossary)
■Firmware
— HPQ_HAF_v05.01.00-24.bin – (HP StorageWorks edge switch preloaded
Firmware)
— HPQ_HAF_v05.02.00-13.bin – (HP StorageWorks edge switch
Firmware)
— firmwareupdate.txt – (Instructions for updating Firmware)
■Acrobat
— RP505ENU.EXE – (Windows installation file for Acrobat Reader 5.0
with Search)
Supported Configurations
Operation of multiple switches in a fabric topology is subject to the following
topology limits. Consider the impact of these limits when planning the fabric.
Note: For more information about planning the fabric, refer to HP StorageWorks
SAN High Availability Planning Guide
.
■Fabric Elements – Each fabric element is defined by a unique domain ID that
ranges between 1 and 31; therefore, the theoretical limit of interconnected
switches in a single fabric is 31. The supported limit of interconnected
switches in a single fabric is 24. Because this number is subject to change,
contact your HP authorized service representative for the current number of
interconnected switches supported in a single fabric.
■Inhomogeneous fabric – To determine if interoperability is supported for a
product, or if restrictions apply, refer to the product publications, or contact
your HP authorized service representative.
■Number of Interswitch Links (ISLs) – The maximum supported number of
ISLs for edge switches is all available switch ports. For redundancy, at least
two ISLs should connect any two switch-class fabric elements. Because this
number is subject to change, contact your HP authorized service
representative for the current number of ISLs supported per switch.

Cable Requirements
9Edge Switch Release Notes
■Hop Count – The Fibre Channel theoretical limit of ISL connections
traversed (hop count) in a single path through a fabric is 7. The maximum
supported hop count in a single path through a fabric is 3. Because this
number is subject to change, contact your HP authorized service
representative for the current hop count supported by a single fabric path.
Note: The hop count is equal to the number of ISL connections traversed in a single
path, not the total number of ISL connections between devices.
Cable Requirements
Note: Please note that optical cables for the Edge Switch 2/24 and Edge
Switch 2/32 must be ordered separately.
For cables measuring up to 500 meters (1 Gbps) or 300 meters (2 Gbps), use
multi-mode Fibre Channel cables. For longer cables, use single-mode Fibre
Channel cables.
Multi-mode optical cables are connected to short-wave optical transceiver
modules in a switch. Single-mode optical cables are connected to long-wave
optical transceiver modules in a switch. Multi-mode cables should use 50/125
optical fibers, and single-mode cables typically use 9/125 optical fibers for
distances up to 10 km.
Verify that connectors interfacing with the Edge Switch 2/24 and Edge
Switch 2/32 use LC Duplex connectors with a PC finish. In addition, the
connector at the opposite end of the cable must use either LC or SC type,
depending on the requirements of the connected device.

Important Information
10 Edge Switch Release Notes
Important Information
This section describes important information related to the Edge Switch 2/24 and
Edge Switch 2/32.
HAFM and Firmware Version Compatibility
Table 1 lists the minimum version of HAFM that can run with the various versions
of firmware for the directors and edge switches.
Upgrading from an Earlier Version of Firmware
Upgrading to firmware Version 05.02.00-13 is nondisruptive to attached devices.
The edge switch or director is not required to be offline before performing an
upgrade operation. Limitations to upgrades are clearly identified if there are any
limitations to performing the operation.
Before upgrading firmware, it is highly recommended that you back up the edge
switch or director configuration in the event that a failure should occur. Refer to
the switch or director Product Manager user guide for more information.
Embedded Web Server (EWS) also provides an option to print or save product
configuration to a file. Refer to the HP StorageWorks Embedded Web Server User
Guide for more information.
Table 1: HAFM and Firmware Compatibility
Firmware Version HAFM Version (Minimum)
01.01.02 04.00.01 (HP EFCM)
01.02.02-06 04.01.02-14 (SDCM)
01.03.00-35 04.02.00-40 (HP EFCM)
01.04.00-01 04.02.00-40 (SDCM)
02.00.00-33 06.00.00-45 (HP EFCM)
02.00.02-01 06.00.02-06
04.01.02-04 06.03.01-05
05.01.00-24 07.01.00-09 (Notebook Server)
05.01.00-24 07.02.00-09 (1U Appliance)
05.02.00-13 07.01.00-09 (Notebook Server)
05.02.00-13 07.02.00-09 (1U Appliance)

Important Information
11Edge Switch Release Notes
All products must be running firmware Version 04.00.00 or higher before
upgrading to Version 05.02.00-13.
All products must be running Version 02.00.00 or higher before upgrading to
Version 04.01.02-04. Upgrading to Version 04.01.02-04 from Version 02.00.00
or higher is nondisruptive to attached devices.
Firmware that predates the 01.03.00 or 01.04.00 firmware release must first be
upgraded to a 01.03.xx or 01.04.xx firmware version, and then upgraded to
Version 02.00.00 or higher, before the upgrade to Version 04.01.02-04 can be
completed.
A small number of early-shipped Surestore Director FC-64 units may receive one
of the following messages when they upgrade to Firmware V05.02.00-13:
■HAFM – Firmware cannot be loaded due to insufficient
CTP memory.
■EWS – File System Error: Insufficient memory for new
firmware version.
This would only occur in certain units with CTP cards. Units with CTP2 cards
will not have this issue.
If you get one of these messages during the upgrade, the firmware upgrade failed,
but the unit continues working with the existing firmware without an interruption
in service. The upgrade process checks for sufficient memory before activating
the new Firmware image. The Firmware upgrade will not complete without
sufficient memory. Please contact HP customer support if you receive this
message.
Considerations for Downgrading the Version of Firmware
Directors and edge switches are not required to be offline before performing a
firmware downgrade operation. Limitations to downgrades are clearly identified if
there are any limitations to performing the operation.
Before downgrading firmware, it is highly recommended that you back up the
edge switch or director configuration in the event that a failure should occur.
Refer to the switch or director Product Manager user guide for more information.
Embedded Web Server (EWS) also provides an option to print or save product
configuration to a file. Refer to the HP StorageWorks Embedded Web Server User
Guide for more information.
Downgrading directly to a version prior to 04.00.00 from Version 05.02.00-13 is
not allowed. To downgrade to a version before 04.00.00, you must first
downgrade to version 04.YY.ZZ.

Important Information
12 Edge Switch Release Notes
Note: The Director 2/140 and Edge Switch 2/24 cannot be downgraded below
version 04.01.00.
Downgrading directly to a version prior to 02.00.00 from version 04.YY.ZZ is not
allowed. To downgrade to a version before 02.00.00, you must first downgrade to
version 02.YY.ZZ.
Firmware downgrades should not be performed using EWS and Microsoft®
Internet Explorer version 5.00.3315.1000x. If this operation is performed, the
download operation may not complete and may eventually time-out leaving the
switch with the previous version of firmware.
NVRAM Validation Errors
Firmware Version 05.02.00-13 contains an enhancement that eliminates outages
in certain types of NVRAM failures. In Version 05.01.00-24, when the NVRAM
validation routine detects an error in the configuration data, it faults the processor.
On director products this results in a failover to the redundant CTP card, with no
interruption of Fibre Channel service. On switch products with no redundant CTP,
the processor IPLs and resets the configuration to factory defaults.
Firmware Version 05.02.00-13 implements a new correction algorithm, that
allows the switch to automatically recover from errors detected during system
runtime. If an error is detected during the validation process, the firmware uses the
configuration data stored in DRAM to refresh NVRAM. When this occurs, the
processor does not fault, no IPL occurs, and an event is logged. Fibre Channel
operation is not impacted.
If a validation error is discovered on the same CTP twice during a one-hour period
on a director product, the CTP will fault and fail over to the backup. If multiple
errors within an hour occur on a switch product, the unit will fault and be reset to
factory defaults.

Important Information
13Edge Switch Release Notes
Upgrading Firmware on an Edge Switch
An issue has been identified in release 04.xx.xx if the contents of the nonvolatile
storage (NVRAM) on the CTP become corrupted. Once the configuration has
been loaded, this corruption is not detected until an IPL/IML, power cycle, or
Firmware code load. If the NVRAM in the CTP has corrupted contents, the
firmware load can cause the configuration to reset to factory defaults, which could
cause a system outage.
Edge Switch products already running Version 05.01.00 or later, continually
validate the NVRAM configuration, so risk of an outage is extremely low. For
Edge Switch products running an earlier version of firmware, the risk of an outage
increases due to the NVRAM issue. If an outage compromises system integrity,
HP recommends that the edge switch firmware upgrade be a scheduled
maintenance action that anticipates the failure of switch connectivity. This issue is
corrected with Version 05.02.00-13 firmware.
1. Upgrade HAFM software on the HAFM server/appliance to Version 07.01.00
(minimum).
2. Download Firmware V05.02.00-13 using the Firmware Library option
under the Product Manager Maintenance menu.
3. Back up the edge switch configuration using the Backup & Restore
Configuration option under the Product Manager Maintenance menu.
4. Upgrade the Firmware to Version 05.02.00-13 on each edge switch using the
Send option on the Firmware Library dialog box.
HAFM Upgrade Required for Firmware Version 05.02.00-13
If you are using HAFM to manage the Director 2/140, Director 2/64, Edge Switch
2/32, Edge Switch 2/24, and/or Edge Switch 2/16, and they are running firmware
Version 05.02.00-13, you need to upgrade HAFM to version 07.01.00-09
(minimum). For more information on upgrading software versions, refer to the HP
StorageWorks HA-Fabric Manager User Guide. The features of this software
version are detailed in the accompanying manuals listed in section “Other Edge
Switch Documentation”.
Open Trunking Feature is Not Available in Current Release
The Open Trunking feature is not available in Firmware Version 05.02.00-13.
Open Trunking feature will be available in a future release.

Important Information
14 Edge Switch Release Notes
Zoning is Disabled by Default
The default zone on the Edge Switch 2/24 and the Edge Switch 2/32 is disabled by
default. Zoning must be configured in order for any devices connected to the edge
switches to communicate.
Some IP Addresses must be Avoided
If you use HAFM to manage M-Series Fabric directors and edge switches, when
you select IP addresses for edge switches, directors, and for the HAFM
server/appliance, do not use IP addresses in the following range:
■192.168.0.0 through 192.168.0.255—This subnet is used internally to the
HAFM server/appliance. Using an IP address in this range causes the
call-home feature to function incorrectly.
Hard Zoning
Hard Zoning is a security enhancement introduced 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.

Important Information
15Edge Switch Release Notes
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 or later, 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 or later, 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.
Command Line Interface (CLI) Changes
CLI has been enhanced to provide the following benefits:
■Access to symbolic name information in the name server database.
■Counter Threshold Alerts (CTA)—Used to configure limits and alerts for
any of the supported port statistics fields. You can configure alerts for
individual ports, groups of ports, or various port types, based on
user-specified counter value exceeded over a specified time duration.
Note: The CTA configuration is cleared upon downgrade to firmware below
05.01.00.

Important Information
16 Edge Switch Release Notes
SNMP Changes
Firmware Version 05.02.00-13 supports the following management information
base (MIB) versions on all products:
■Fabric Element MIB: V1.1
■MIB-II MIB: RFC-1213, non-implemented sections are not included
■FCEOS MIB: V2.0
■SNMP Framework MIB: RFC-2271 (1997/09/30)
■FA MIB: V3.1
Zoning Limitations
Firmware Version 05.02.00-13 includes the ability to configure large zone sets,
including up to 1024 zones and 1024 end ports in a single zone set. Table 2 shows
the supported limits for the edge switches and directors.
Note: Hard Zoning will be enforced upon firmware initialization. Devices not
conforming to zoning rules will be restricted to their assigned zones.
Table 2: Zoning Parameters Supported Limits
Note: The supported number of zones is based on a zone name with a maximum of
32 characters. On all edge switches and directors except the Director 2/140, the
maximum number of zones decreases if full 64 character names are used. The
supported limits are based on two members per zone.
Zoning Parameter Maximum Value
Number of end ports 1024
Unique zone members 1024
Members per zone 1024
Zones 1024
Number of zone sets 64
Maximum devices supported 1024

Important Information
17Edge Switch Release Notes
Zone set sizes are affected by the number of zones in the zone set, the length of
each zone name, the number of members in each zone, and the Interoperability
mode of the fabric. Please consult with HP Professional Services or your support
representative if you have questions regarding specific zone set configurations.
Using the Same Firmware
All switches and directors in the same fabric should have the same FW level
installed—whether 1 Gbps or 2 Gbps capable.
The only exception is the recently released HP StorageWorks Edge Switch 2/12,
which currently has an interim firmware version specific for the Edge
Switch 2/12, Version 05.05.00-12. This firmware cannot be used for any other
edge switch or director. This interim version is compatible with firmware
Versions 05.01.00-24 and 05.02.00-13 used for the rest of the M-Series Fabric
products. The next major firmware release will be a common firmware version for
all the M-Series Fabric products.
Reinstalling Feature Licenses
Feature Licenses (or keys) must be reinstalled after performing a factory reset on
an edge switch to regain use of the licensed features (e.g., SANtegrity Binding).
Disconnecting the Null Modem Cable
Always log out and disconnect the Null Modem cable from the serial maintenance
port when not in use or when the switch is reset.
CTP Controls Port Lights
Port lights on the edge switch and director products are controlled by the CTP
functionality. Certain activities such as FW updates, IPLing the CTP, or switching
over to the backup CTP (Director) can cause these port lights to extinguish
momentarily until control is reasserted by the CTP. The actual FC traffic is not
affected during these times.

Known Issues
18 Edge Switch Release Notes
Known Issues
This section describes the known issues related to the Edge Switch 2/24 and Edge
Switch 2/32.
Embedded Web Server access to modify zones is limited to first 255
zones
If you have an active zone set of greater than 255 zones, you will not be able to
access the zones past the 255th zone using the Embedded Web Server (EWS). The
higher number zone names are listed, but when accessed to modify the zone (for
example, the zone that would be numbered “n”), you will get the zone member list
for the (n-255) zone. This will be corrected in a future firmware release.
Workaround
Using the HAFM server to manage directors and edge switches will allow you to
modify zones in zone sets with greater than 255 zones.
SNMP trap reports incorrect FRU position
When an SNMP trap is sent and reports a FRU position number, the reported
number is one greater than the actual FRU position that caused the SNMP trap to
be issued.
Workaround
None.
Certain Unauthorized Devices may Increase Response Time for Fabric
Operations Under Specific Conditions with the Edge Switch 2/24
When Port Binding is enabled, unauthorized devices (devices that are not set up
by the Port Binding) with older technology can transmit numerous fabric login
(FLOGI) requests, which are rejected by the Edge Switch 2/24. Processing these
exchanges may increase fabric response times for activities such as fabric builds
and valid FLOGI response time for other ports.

Known Issues
19Edge Switch Release Notes
Workaround
Remove the unauthorized device, change the Port Binding WWN (if this device
should be authorized), or alternatively disable Port Binding.
CTP Events for Edge Switch 2/24 Show Incorrect FRU Number
Should a CTP event occur in an Edge Switch 2/24, the event log may show
“CTP-24” instead of “CTP-0”. There is only one CTP in the Edge Switch 2/24, so
there should be no question as to what FRU is exhibiting the event.
HSG80 Transparent Mode Not Supported with IBM AIX
Use of an HSG80 with IBM AIX is restricted to operating the HSG80 in Multibus
mode with the Edge Switch 2/24 and Edge Switch 2/32. Transparent mode is not
supported at this time.
Workaround
None.
HSG80 Transparent Mode Not Recommended with Controller in SCSI-3
Mode with HP-UX Operating Systems
Due to an issue with non-existent duplicate LUNs being displayed with the
HP-UX operating systems, the HSG80 controller is restricted to SCSI-2 mode of
operation when set to Transparent failover mode. SCSI-3 mode of operation in
Multibus failover mode is fully supported with the use of Secure Path software,
Version 3.0 or later versions.
Workaround
None.

Known Issues
20 Edge Switch Release Notes
ISL Disconnect Causes NOS Error with the OpenVMS Operating Systems
When an ISL connection is physically removed between directors or switches, the
Fibre Channel Adapter model FCA2354 transmits a Not Operational Sequence
(NOS) error. This is observed as an entry in the HAFM server Link Incident log
for the port in which the FCA2354 is attached. The director’s Hardware View also
displays a yellow triangle icon over the port that detected this incident. The fabric
operation or data movement is not disrupted by these incidents, which can be
cleared using the following procedure.
Workaround
Use these steps to clear the incident alerts.
1. At the HAFM Hardware View, click the port module to open the Port Card
View.
2. Right click on the port with the yellow triangle icon, and choose Clear Link
Incident Alert(s).
Support for Speed Auto-Negotiate
Auto-negotiate is supported. However, HP recommends that the port speed for
E_Ports (for Interswitch Links, or ISLs) be set to a specific port speed (1Gb/sec or
2Gb/sec, as appropriate for the speed of the directors or edge switches being
connected) instead of to Negotiate. Using a specific port speed decreases the time
for a fabric build in response to some perturbation event in the fabric. Similarly,
setting a specific port speed for N_Ports also decreases fabric build time.
However, setting a specific port speed for N_Ports is not required.
There are a few older HBA devices that do not always succeed in logging in to a
switch port when the port speed is set for auto-negotiate.
Workaround
If an older HBA is found to have difficulty logging into a switch port that has its
port speed configured as Negotiate, configure that port speed to 1Gb/sec or
2Gb/sec according to the operation speed of the HBA connected to that port.