HP A7340A - Surestore FC 1Gb/2Gb Switch 16B User manual

user guide
hp StorageWorks
remote switch
version 3.1.x/4.1.x
Product Version: 3.1.x/4.1.x
Third Edition (June 2003)
Part Number: AA-RTS7C-TE
This document describes Remote Switch fabric functions with the aid of a “bridging device” or
network-bridge. The network-bridge supports both a Fibre Channel physical interface, as well
as a secondary non-Fibre Channel IP physical interface.

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HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Third Edition (June 2003)
Part Number: AA-RTS7C-TE

3HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
contents
Contents
About this Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Text Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Equipment Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rack Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
HP Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
HP Storage Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
HP Authorized Reseller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1 Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
About Remote Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Installing Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installing Remote Switch Using Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installing Remote Switch Using Advanced Web Tools. . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Configuring a Remote Switch Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Accessing the Switch using Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Contents
4 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide

5HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
about this
guide
About this Guide
About this Guide
This user guide provides information to help you install and configure the Remote
Switch.
“About this Guide” topics include:
■Overview, page 6
■Conventions, page 7
■Rack Stability, page 10
■Getting Help, page 11

About this Guide
6 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Overview
This section covers the following topics:
■Intended Audience
■Prerequisites
Intended Audience
This book is intended for use by system administrators who are experienced with
the following:
■StorageWorks Fibre Channel SAN switches
■Fabric Operating System V3.0 or later
Related Documentation
For a list of related documents included with this product, see the Related
Documents section of the HP StorageWorks SAN Switch 2/16 Version 3.1.x/4.1.x
Release Notes.
For the latest information, documentation and firmware releases, please visit the
following HP StorageWorks website:
http://www.hp.com/country/us/eng/prodserv/storage.html
For information about Fibre Channel standards, visit the Fibre Channel
Association web site, located at:
http://www.fibrechannel.org
Prerequisites
Before you install or configure software, make sure you consider the items in the
Conventions section that follow.

About this Guide
HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide 7
Conventions
Conventions consist of the following:
■Document Conventions
■Text Symbols
■Equipment Symbols
Document Conventions
The document conventions included in Table 1 apply in most cases.
Text Symbols
The following symbols may be found in the text of this guide. They have the
following meanings.
WARNING: Text set off in this manner indicates that failure to follow
directions in the warning could result in bodily harm or death.
Table 1: Document Conventions
Element Convention
Cross-reference links Blue text: Figure 1
Key and field names, menu items,
buttons, and dialog box titles Bold
File names, application names, and text
emphasis
Italics
User input, command and directory
names, and system responses (output
and messages)
Monospace font
COMMAND NAMES are uppercase
monospace font unless they are case
sensitive
Variables <monospace, italic font>
Website addresses Blue, underlined sans serif font text, for
example:
http://www.hp.com

About this Guide
8 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Caution: Text set off in this manner indicates that failure to follow directions
could result in damage to equipment or data.
Note: Text set off in this manner presents commentary, sidelights, or interesting points
of information.
Equipment Symbols
The following equipment symbols may be found on hardware for which this guide
pertains. They have the following meanings.
Any enclosed surface or area of the equipment marked with these
symbols indicates the presence of electrical shock hazards. Enclosed
area contains no operator serviceable parts.
WARNING: To reduce the risk of personal injury from electrical shock
hazards, do not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a network
interface connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors
into this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. Contact with
this surface could result in injury.
WARNING: To reduce the risk of personal injury from a hot
component, allow the surface to cool before touching.

About this Guide
HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide 9
Power supplies or systems marked with these symbols indicate the
presence of multiple sources of power.
WARNING: To reduce the risk of personal injury from electrical
shock, remove all power cords to completely disconnect power
from the power supplies and systems.
Any product or assembly marked with these symbols indicates that the
component exceeds the recommended weight for one individual to
handle safely.
WARNING: To reduce the risk of personal injury or damage to the
equipment, observe local occupational health and safety requirements
and guidelines for manually handling material.

About this Guide
10 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Rack Stability
Rack stability protects personnel and equipment.
WARNING: To reduce the risk of personal injury or damage to the
equipment, be sure that:
■The leveling jacks are extended to the floor.
■The full weight of the rack rests on the leveling jacks.
■In single rack installations, the stabilizing feet are attached to the rack.
■In multiple rack installations, the racks are coupled.
■Only one rack component is extended at any time. A rack may become
unstable if more than one rack component is extended for any reason.

About this Guide
HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide 11
Getting Help
If you still have a question after reading this guide, contact an HP authorized
service provider or access our website:
http://www.hp.com .
HP Technical Support
Telephone numbers for worldwide technical support are listed on the following
HP website:
http://www.hp.com/support/ . From this website, select the country
of origin.
Note: For continuous quality improvement, calls may be recorded or monitored.
Be sure to have the following information available before calling:
■Technical support registration number (if applicable)
■Product serial numbers
■Product model names and numbers
■Applicable error messages
■Operating system type and revision level
■Detailed, specific questions
HP Storage Website
The HP website has the latest information on this product, as well as the latest
drivers. Access storage at:
http://www.hp.com/country/us/eng/prodserv/storage.html .
From this website, select the appropriate product or solution.
HP Authorized Reseller
For the name of your nearest HP authorized reseller:
■In the United States, call 1-800-345-1518
■In Canada, call 1-800-263-5868
■Elsewhere, see the HP website for locations and telephone numbers:
http://www.hp.com .

About this Guide
12 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide

13HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
1
Remote Switch
This chapter provides the following information:
■About Remote Switch, page 14
■Installing Remote Switch, page 15
■Using Remote Switch, page 17
■Configuring a Remote Switch Fabric, page 18
■Accessing the Switch using Telnet, page 18
Remote Switch is an optionally licensed product that runs on HP StorageWorks
SAN Switches, version 3.0.x/4.0.x or later.
The Remote Switch fabric functions with the aid of a “bridging device” or
network-bridge. The network-bridge supports both a Fibre Channel physical
interface as well as a secondary non-Fibre Channel FCIP physical interface.
Note: Remote Switch is supported when used with HP StorageWorks Data Replication
Manager (DRM) only.

Remote Switch
14 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
About Remote Switch
The Remote Switch fabric environment functions as an E_Port.
The network-bridge accepts Fibre Channel frames from one side of a Remote
Switch fabric, tunnels them across the network, and then passes them to the other
side of the Remote Switch fabric. Switches can be cascaded together to form a
fabric that, from the viewpoint of the connected hosts and storage devices, interact
the same as locally connected switches.
Remote Switch provides:
■Any-to-any connectivity - A host connected on the local or remote switch can
communicate with storage devices at either location.
■Coordinated fabric services - The Remote Switch fabric configuration fully
supports all fabric services, the same as a centralized fabric configuration.
These services include Distributed Name Services, Registered State Change
Notifications, and Alias Services.
■Distributed management - Access to the management facilities (Advanced
Web Tools, telnet, and SNMP) is available from either the local or the remote
switch. Interconnect for switch management is routed through the Fibre
Channel connection; no additional network connection is required between
sites.
■Ability to support multiple interswitch links (ISLs) - Sites requiring redundant
configurations can connect multiple E_Ports to remote sites by using multiple
gateways. Standard Fabric OS routing facilities automatically maximize
throughput by using the E_Ports to load share traffic during normal operation,
with automatic failover and failback during interruption on the WAN
connection.

Remote Switch
15HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Installing Remote Switch
A Remote Switch fabric requires two switches that are HP StorageWorks SAN
Switch 2Gb (version 3x) or (version 4x) or StorageWorks Core Switches, with the
switches configured the same.
Installing Remote Switches requires the installation of a separate license on each
of the two switches. Licenses may have been installed on the switches at the
factory. If not, contact your switch supplier to obtain a license key.
You can install a Remote Switch license either through telnet or through
Advanced Web Tools.
Installing Remote Switch Using Telnet
To install a Remote Switch using telnet:
1. Login to the switch as the admin user.
2. To determine whether a Remote Switch license is already installed, enter
licenseShow on the telnet command line.
A list of all the licenses currently installed on the switch display as shown in
the following example:
switch:admin> licenseShow
cQebzbRdScRfcOiK:
Web license
Zoning license
AybbzQQ9edTzcc0X:
Extended Fabric license
If the Remote Switch license is listed, the feature is installed and immediately
available. Skip step 3 and step 4.
3. Enter the following at the command line:
licenseAdd “key”
“key” is the license key provided to you, enclosed in quotation marks. The
license key is case sensitive and must be entered exactly shown.
4. Verify the license was added by entering the following on the command line:
licenseShow
If the Remote Switch license is listed, the feature is installed and immediately
available. If the license is not listed, repeat step 3.

Remote Switch
16 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Installing Remote Switch Using Advanced Web Tools
To install Remote Switch using Web Tools:
1. Launch the web browser.
2. Enter the switch name or FCIP address in the Location/Address field, and
press Enter.
Advanced Web Tools launches, displaying the Fabric View.
3. Click Admin on the relevant switch panel.
The logon window displays.
4. Enter a logon name and password with administrative privileges and press
Enter.
The Administration View displays.
5. Select License Admin.
6. Enter the license key in the License Key: field, and click Add License.
The Remote Switch feature is available as soon as the license key is added.

Remote Switch
17HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Using Remote Switch
You can configure switches for use with Remote Switch using either telnet
commands or using Advanced Web Tools. For information about using Advanced
Web Tools to configure a switch, refer to the HP StorageWorks Web Tools Version
3.1.x/4.1.x User Guide.
Overview
The Remote Switch feature operates in conjunction with a Fibre Channel to FCIP
WAN gateway. This gateway provides both a Fibre Channel physical interface
functioning as an E_Port and an FCIP WAN physical interface.
The gateway accepts Fibre Channel frames from one side of a Remote Switch
fabric, transfers them across a WAN using an FCIP protocol, and passes them to
the other side of the Remote Switch fabric.
To transfer frames across a WAN using an FCIP protocol, the Fibre Channel
frames (from 256 to 2112 bytes) must be broken into pieces at the local end of the
FCIP network. Once they are broken into smaller pieces, they are tunnelled and
then transmitted across the network. At the remote end of the FCIP network, these
pieces are reassembled back into complete Fibre Channel frames and transmitted
through the remote Fibre Channel interface.
To accomplish this, the gateway provides an E_Port interface that links to the
SAN Switch E_Port. Once the link between the two E_Ports is negotiated, the
gateway E_Port moves to pass-through mode and passes Fibre Channel traffic
from the SAN Switch E_Port to the FCIP network.

Remote Switch
18 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Configuring a Remote Switch Fabric
A Remote Switch fabric requires two StorageWorks SAN Switches (2Gb, v 3x or
v4x), or StorageWorks Core Switches with identical configurations.
Remote Switch is supported over Fibre Channel for the following gateway
devices:
■ATM
■IP
■SONET
■DWDM
Most of these gateway devices include a large number of buffers to cover data
transfer over WAN.
A separate extended fabric license is not required to operate the switch at
distances much greater than 100 kilometers. This can be achieved when the switch
operates over an FCIP WAN connection.
In addition to normal switch configuration options, you can configure the
following parameters depending on the gateway requirements:
■R_A_TOV: Resource Allocation Timeout Value
■E_D_TOV: Error Detect Timeout Value
■dataFieldSize: Maximum FC data field reported by the fabric
■BB_Credit: Number of Buffer-to-Buffer credits for Nx_Port devices
■NoClassF: Enable/Disable class F traffic
■Suppress Class F Traffic: Disable class F traffic
Accessing the Switch using Telnet
Use telnet commands to set the following:
■R_A_TOV and E_D_TOV values
■Data field size

Remote Switch
19HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
You must disable the switch prior to entering the configure telnet command.
In the following example, the default value was accepted for R_A_TOV.
switch:admin> configure
Configure...
Fabric parameters (yes, y, no, n): [no] y
Domain: (97..127) [97]
BB credit: (1..27) [16]
R_A_TOV: (4000..120000) [10000]
E_D_TOV: (1000..5000) [2000]
WAN_TOV: (0..2000) [0]
MAX_HOPS: (7..13) [7]
WAN_RTT_DLY_MAX: (0..9500) [200]
Data field size: (256..2112) [2112]
Sequence Level Switching: (0..1) [0]
Disable Device Probing: (0..1) [0]
Suppress Class F Traffic: (0..1) [0]
SYNC IO mode: (0..1) [0]
Core Switch PID Format: (0..1) [1]
Per-frame Route Priority: (0..1) [0]
Long Distance Fabric: (0..1) [0]
Virtual Channel parameters (yes, y, no, n): [no] n
Zoning Operation parameters (yes, y, no, n): [no] n
RSCN Transmission Mode (yes, y, no, n): [no] n
NS Operation Parameters (yes, y, no, n): [no] n
Arbitrated Loop parameters (yes, y, no, n): [no] n
System services (yes, y, no, n): [no] n
Portlog events enable (yes, y, no, n): [no] n
No changes.
switch:admin>

Remote Switch
20 HP StorageWorks Remote Switch Version 3.1.x/4.1.x User Guide
Note: The switch must be disabled prior to entering the configure command. Some
network-bridge devices may not have a provision for handling class F frames.
Therefore, the transmission of class F frames throughout the entire Remote Switch
fabric must be suppressed.