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Document number: 62-9301-01 Rev A
First published: February 1999Printed in the USA
This manual contains information and instructions necessary
for the safe operation of the FCR200 Fibre Channel-to-SCSI
Routers. The topics discussed in this chapter are:
•Overview
•Intended Audience
•Organization
•Associated Documents
•Explanation of Symbols and Notes
•Assistance
Intended Audience
This guide is intended for operators, trained customer
specialists, and maintenance personnel of the service partner
who interact with the FCR200.
1-
Organization
This publication contains chapters detailing the operation of
the FCR200. The chapters topics include:
Chapter 1Introduction - Describes the overview,
Chapter 2Description - Describes general information
Chapter 3Safety - Describes the hazard symbols,
Chapter 4Installation - Describes the functional
Chapter 5Understanding the Configuration - Describes
Chapter 6Configuration - Describes the configuration
intended audience, organization,
associated documents, explanation of
symbols and notes, and how to obtain
additional assistance.
about the FCR200.
messages, safety features, and operational
considerations for the safe operation of the
FCR200.
installation of the FCR200.
the configuration considerations for the
FCR200.
of the FCR200.
Overview1-3
Chapter 7
Appendix A
Appendix B
Appendix CSCSI Interface and Commands - Describes
Appendix D
Appendix E
Glossary
Index
Troubleshooting
techniques and hints.
Ethernet Assignments
cable connections.
Fibre Channel Interface and Commands
Describes specific commands supported by
the FCR200.
specific information about the SCSI Inquiry
command.
Addressing, Structures, and Operation
Describes various addressing schemes for
devices.
Reference Standards
standards.
Associated Documents
- Describes troubleshooting
- Outlines the Ethernet
-
-
- List applicable
None.
Explanation of Symbols and Notes
The following symbols and highlighted passages note
important information.
Detailed explanations for the above symbols are provided in
Safety Instructions
<1> + <2>Press these keys simultaneously.
Italics
BoldSpecial Term, e. g., Utilities.
CourierTerms appearing on the operating panel,
on page 3-3.
Headline, e. g., Chapter Name,
switch position, e. g., ON, OFF
Description
1-4Introduction
62-9301-01
Federal Communication Commission
Notice (US Only)
The Federal Communications Commission (in 47 CFR 15.105)
has specified that the following notice be brought to the
attention of the users of this product.
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct
the interference at personal expense.
IEC Statement (Worldwide)
This is a Class A product. In a domestic environment this
product may cause radio interference in which case the user
may be required to take adequate measures.
Canadian Notice (Avis Canadien)
This Class A digital apparatus meets all requirements of the
Canadian Interference-Causing Equipment Regulations.
Cet appareil numerique de la classe A respecte toutes les
exigences du Reglement sur le materiel brouilleur du Canada.
European Union Notice
Products with the CE Marking comply with both the EMC
directive (89/336/EEC) and the Low Voltage Directive
(73/23/EEC) issued by the Commission or the European
Community. Compliance with these directives implies
conformity to the following European Norms (in brackets are
equivalent international standards):
•Ultra Wide SCSI for data transfer up to 40 MB/s per bus
•Connection for up to 30 devices (15 per bus)
•Simultaneous commands, tagged command queuing and
disconnect/reconnect
•Middle of bus configuration with external termination
•SCSI-2 and SCSI-3 protocols
•68-pin D shell, P type connectors
•Differential or single-ended
•Disk, tape, optical and changer devices
•SCC, Indexed and Automatic addressing modes
2-4Description
Configuration Features
•Serial RJ-11 connector for terminal access
•Ethernet RJ-45 connector for FTP, Telnet and Web
browser access
•Easy field-upgradable firmware
Management Features
•Out-of-band Ethernet TCP/IP
•SNMP with private MIB support
62-9301-01
FCR200 Specifications
Physical Specifications
•Internal power supply with power switch and detachable
power cord
•Fibre Channel activity LED
•SCSI Bus 1 activity LED
•SCSI Bus 0 activity LED
•Ethernet activity LED
•Power LED
•Fault LED
•Airflow with internal fan
•Rack mount or desktop enclosure
Physical Dimensions
•Width 43.18cm (17.00 inches)
•Depth 22.82cm (8.98 inches)
•Height 4.31cm (1.70 inches, 1U)
•Weight 3.18 kg (7 lbs)
Operating Environment
•5 to 40 °C
•5 to 80% Relative Humidity (non-condensing)
Non-operating Environment
•-40 to +55 °C
•0 to 92% Relative Humidity (non-condensing)
Power
•100 - 240 VAC, Auto Sensing
•50/60 Hz, 1.0 Amps
FCR200 Specifications2-5
FCR200 Benefits
Point-to-Point
See Figure 2-3 for a point to point illustration.
Figure 2-3Single Initiator to Single Target
Single Initiator
See Figure 2-4 for a single initiator to multiple target
illustration.
Figure 2-4Single Initiator to Multiple Targets
2-6Description
62-9301-01
Multiple Initiators
See Figure 2-5 for multiple initiators to single or multiple
targets illustration.
Figure 2-5Multiple Initiators to Single or Multiple Targets
AvailabilityWith two units, dual loop attachment
provides redundancy and no single point
of failure.
ConnectivitySCSI devices may be attached to Fibre
Channel storage networks to share data
and increase address space.
DistanceSCSI cable length from hosts to devices is
increased from 25m to 10,000m, facilitating
remote or disaster tolerant sites.
Performance100 Mbytes/sec Fibre Channel (200
Mbytes/sec bi-directional) offers increased
bandwidth when distributing data across
multiple SCSI devices.
ReliabilityLow error rates, robust error recovery and
flow control provide an enterprise with
reliable data delivery.
ScalabilityPoint-to-point links can be expanded to
multi-initiator links supporting
interconnected servers, tape drives, tape
libraries, disk drives and disk arrays.
FlexibilityAllows Fibre Channel initiators to
communicate with SCSI targets, as well as
SCSI initiators to communicate with Fibre
Channel targets, simultaneously.
FCR200 Benefits2-7
ConsolidationAllows multiple servers to share storage
resources, including tape drives, tape
libraries, disk drives and disk arrays.
CentralizationEnables existing storage to be moved to a
central location to simplify management
and maintenance, and to improve security.
Lower TCOImproving storage management,
maintenance and security can lower Total
Cost of Ownership (TCO) for enterprise
storage.
How the FCR200 Works
The FCR200 is a storage router that translates Fibre Channel
Protocol (FCP) to and from two SCSI buses so devices on these
two types of media can communicate with each other. It
attaches to either a Fibre Channel or SCSI host, and transfers
the command, data, and status information to SCSI or Fibre
Channel targets. The host passes packets to SCSI or Fibre
Channel targets as if the FCR200 were just another device
along the path.
The FCR200 provides connections for two SCSI buses and a
Fibre Channel Arbitrated Loop or Switched Fabric. It takes
advantage of Fibre Channel’s ability to encapsulate SCSI
protocol packets to allow a host with a FC or SCSI adapter to
access SCSI or FC peripheral devices transparently over a FC
connection.
Figure 2-6 on page 2-9 shows a Fibre Channel-to-SCSI
configuration. Through the FCR200 router, any host on the
Fibre Channel loop can access the tape drive and library on
each SCSI bus.
2-8Description
62-9301-01
Figure 2-6Fibre Channel-to-SCSI Configuration
Operating as Both a SCSI and Fibre
Channel Device
The router is both a SCSI and Fibre Channel device operating
on a SCSI bus and Fibre Channel network simultaneously.
The SCSI Side
On a SCSI bus, the FCR200 acts as a SCSI initiator passing
requests from hosts on the Fibre Channel network to target
devices on the SCSI bus. Each FCR200 SCSI bus uses a single
SCSI ID. The default ID is 7 and can be changed when
configuring the FCR200.
The Fibre Channel Side
In a Fibre Channel loop, the FCR200 is identified by a single
Arbitrated Loop Physical Address (AL_PA) or a fabric
assigned Source ID. Once the address is acquired, any host on
the Fibre Channel loop can access the devices on a SCSI bus
transparently over a FC connection.
Operating as Both a SCSI and Fibre Channel Device2-9
Mapping Devices
To allow Fibre Channel and SCSI devices to address each
other, the FCR200 creates a table that maps device identifiers
between Fibre Channel and SCSI. During FCR200
configuration, you can choose the mapping method and, in
certain cases, customize the device mappings. See
for more information about address modes and their
configurations.
Processing SCSI Information
The following describes how the router processes SCSI
information. Refer to Figure 2-7 on page 2-11.
1A FC host issues a command. The FC host
encapsulates the command in the FCP protocol and
sends the packet to the FCR200.
2The FC port in the FCR200 receives the packet,
interprets the FC information, and places the
packet in buffer memory.
Chapter 5
3The FCR200’s processor interprets the information
and programs a SCSI controller to process the
transaction.
4The SCSI controller sends the command to the SCSI
device (target).
5The target interprets the command and prepares to
either read or write data.
2-10Description
62-9301-01
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