ATTO Technology 1500D/E User manual

ATTO Technology, Inc.
iPBridge
TM
1500D/E
iPBridge
TM
1550D/E
Installation and Operation Manual
© 2005ATTO Technology, Inc. All rights reserved. All brand or product names are trademarks of their respective
holders. No part of this manual may be reproduced in any form or by any means without the express written
permission of ATTO Technology, Inc.
4/2005Document Control Number: PRMA-0351-000MD

Contents
Introduction: iSCSI provides storage options
Glossary
1 Setting up the iPBridge .....................................................................1
iPBridge1500 features
iPBridge 1550 features
1.1 ATTO iPBridge 1500E ..........................................................3
Dimensions
Environment
Power
Reset switch
SCSI port
Ethernet port
Serial port
LED indicators
Installation instructions
1.2 ATTO iPBridge 1500D ..........................................................5
Dimensions
Environment
Power
SCSI port
Ethernet port
LED indicators
Reset switch
Installation instructions
1.3 ATTO iPBridge 1550E ..........................................................7
Dimensions
Environment
Power
Reset switch
SCSI port
Ethernet port
Serial port
LED indicators
Installation instructions
1.4 ATTO iPBridge 1550D ..........................................................9
Dimensions
Environment
Power
SCSI port
Ethernet port
LED indicators
Reset switch
Installation instructions

1.5 Connecting SCSI devices to the SCSI port ........................11
Cabling
Cable types
Examples
1.6 Configuring the iPBridge .....................................................13
Connect using the GbE port
Using ATTO ExpressNAV
Connecting using the serial port
Use Telnet
2 Managing the iPBridge ......................................................................17
Change default username, password
SCSI configuration
Ethernet port configuration
iSCSI configuration
Mapping
OEM configuration services
2.1 ExpressNAV provides web-based interface ......................19
Status
Serial Port Configuration
Ethernet Port Configuration
SCSI Configuration
iSCSI Configuration
Bridge Configuration
Mapping
Advanced CLI Configuration
Restart Firmware
Help
2.2 CLI provides ASCII-based interface ...................................21
2.2.1 CLI commands summary .......................................23
2.2.2 General use commands .........................................25
Help
Password
ReadOnlyPassword
ReadOnlyUsername
RestoreConfiguration
SaveConfiguration
Username
VerboseMode
2.2.3 Diagnostic commands ...........................................27
BridgeModel
BridgeName
Help
IdentifyBridge
Info
IsReserved

OEMConfigFile
Ping
RMON
RouteDisplay
SCSIPortList
SCSITargets
CLI Error Messages
2.2.4 Maintenance commands ........................................29
FirmwareRestart
Password
Reserve
RestoreConfiguration
SCSIPortReset
SpeedWrite
SpeedWriteDefault
Username
2.2.5 SCSI configuration commands .............................31
SCSIInitID
SCSIPortBusSpeed
SCSIPortList
SCSIPortReset
SCSIPortResetOnStartup
SCSIPortSelTimeout
SCSIPortSyncTransfer
SCSIPortTermination
SCSIPortWideTransfer
SCSITargets
SpeedWrite
SpeedWriteDefault
2.2.6 Serial port configuration commands ....................33
SerialPortBaudRate
SerialPortEcho
2.2.7 Ethernet commands ...............................................35
DPMTU
EthernetSpeed
Exit
IPAddress
IPDHCP
IPGateway
IPSubnetMask
Password
Ping
ReadOnlyPassword
RMON
Username
ReadOnlyUsername
2.2.8 iSCSI commands ....................................................37
iSCSIAlias
iSCSIChap
iSCSIChapSecret
iSCSIPortNumber

iSCSITarget
iSNSLoginControl
iSNSServer
MultiTargetMode
2.2.9 Mapping commands ...............................................39
AutoMap
iSCSITarget
MultiTargetMode
Route
RouteDisplay
SCSIInitID
SCSITargets
2.2.10 Privileged OEM configuration services ..............41
AutoMapOnBoot
ColdReset
InquiryProductID
InquiryVendorID
IqnVendorPrefixID
ModelNumber
OEMConfigFile
ProductID
VendorID
2.3 Mapping devices ..................................................................43
Node names
Single target mode
Use Command Line Interface
Use the ExpressNAV interface
Multiple target mode
Use Command Line Interface
Example
2.4 Updating firmware ................................................................47
Appendix A Safety standards and compliances .................................i
Appendix B ATTO accessories .............................................................iii
Appendix C Contact ATTO Technology, Inc. ......................................v

ATTO Technology Inc. iPBridge Installation and Operation Manual
Introduction: iSCSI provides storage options
The iSCSI protocol allows storage devices such as hard drives, tape drives and libraries and CD
jukeboxes to attach easily to Internet Protocol networks such as Gigabit Ethernet. The iPBridge 1500
and the ATTO iPBridge 1550 support the high throughput needs of streaming data transfers, optimizing
performance and management using ATTO Technology intelligent Bridging Architecture™.
The iSCSI protocol increases the capabilities and
performance of storage data transmission by
transmitting data over local area networks
(LANs), wide area networks (WANs), or the
Internet, providing location-independent data
storage and retrieval to enhance current and future
Storage Area Networks (SANs).
Gigabit Ethernet (GbE) is a transmission
technology based on the Ethernet format and
protocol used in local area networks (LANs). It
provides a data rate of 1 billion bits per second
(one gigabit) as defined in the IEEE 802.3
standard.
intelligent Bridging Architecture, the engine
within ATTO FibreBridge™ and iPBridge
products, uses ATTO Data Routing Fabric
topology and ATTO Virtual Device Manager to
optimize performance. For more information see
www.attotech.com/iBA.html.
Glossary
More information is available through the Storage Networking Industry Association
(www.snia.org/education/dictionary) , the Network Data Management Task Force (www.ndmp.org) , and
the IETF
(www.ietf.org).
Term Definition
Btl Bus-Target-LUN: Identification for a parallel SCSI device
CHAP Challenge-Handshake Authentication Protocol: If
CHAP is enabled, the target
requires the initiator to negotiate CHAP authentication using the CHAP secrets
(passwords). An initiator may reject this negotiation.
DP
data port
GbE port used for data movement and management
firmware Software stored in read-only memory (ROM) or programmable ROM (PROM);
firmware is often responsible for the behavior of a system when it is first
switched on
GbE
Gigabit Ethernet
A protocol for transferring block-level IO over Telnet networks; speed at which
data is passed over Ethernet
IETF Internet Engineering Task Force: The standards body responsible for Internet
standards such as SNMP and Telnet through a community of network designers,
operators, vendors and researchers concerned with the evolution and smooth
operation of the Internet
initiator device A component which originates a command
iSCSI Internet SCSI (Small Computer System Interface), a protocol to link data storage
facilities over the Internet or an intranet developed by the Internet Engineering
Task Force (IETF); carries SCSI commands over IP networks to facilitate data
transfers over intranets and manage storage over long distances
LED Light-emitting diode, a type of diode that emits light when current passes through
it; visible LEDs are used as indicator lights on all sorts of electronic devices

Introduction
LUN Logical Unit Number: a SCSI identifier of a device
NAS Network Attached Storage: storage elements connected to a network to provide
file access services to computer systems; an NAS Storage Element includes an
engine to implement the file services and one or more devices to store data;
NAS elements may be attached to any type of network; an NAS host system
uses a file system device driver to access data and NAS systems interpret these
commands to execute the necessary internal file and device I/O operations
SCSI Small Computer Systems Interface: a processor-independent standard for
system-level interface between a computer and intelligent devices including hard
disks, floppy disks, CD-ROM, printers, scanners, etc.
SNMP Simple Network Management Protocol: a standard for monitoring and managing
systems and devices in a network; data is defined by a MIB; functions supported
include the request and retrieval of data
Tape Window A fixed-size parameter indicating the maximum data length that can be written to
a tape in one Data Mover action; once the tape window is reached, the Data
Mover will pause until writes occur and the tape window becomes available.
TCP/IP Abbreviation for the basic communication protocols used on the Internet
including Transmission Control Protocol (TCP), Internet Protocol (IP), File
Transfer Protocol (FTP), Simple Mail Transfer Protocol (SMTP) and Telnet.
Term Definition

1
ATTO Technology Inc. iPBridge Installation and Operation Manual
1 Setting up the iPBridge
The ATTO bridge family of products provides GbE-to-SCSI or Fibre Channel-to-SCSI bridges available
as embeddable boards, stand alone enclosures that can be fitted for rackmount integration, or desktop
units, depending on the model and your needs.
The ATTO iPBridge and ATTO FibreBridge
family of products share common configuration
options and functions to provide the most
versatile connectivity options available. Each
product has been engineered to address specific
customer needs. New capabilities are integrated
into products throughout the family as much as
possible, requiring only an upgrade of firmware to
incorporate them into your SAN (Storage Area
Network) or NAS (Network Attached Storage).
The ATTO iPBridge 1500E/D is a low cost single-
channel iSCSI-to-SCSI bridge that enables
existing Direct-Attached Storage solutions to be
integrated into an Ethernet network allowing IT
departments to leverage existing investment in
SCSI storage and Ethernet infrastructure and
expertise.
The ATTO iPBridge 1550E/D is a cost-effective
way of expanding your existing storage capacity
without sacrificing performance. The ATTO
iPBridge 1550E/D is ideally suited to the SME or
for corporate IT departments seeking to expand
storage requirements with minimal disruption
while making existing SCSI equipment accessible
over an Ethernet network to all network users.
To make sure you have the most up-to-date
version of the firmware, visit the ATTO
Technology website, www.attotech.com.
iPBridge1500 features
• One independent Gigabit Ethernet port and one
independent Ultra3 SCSI port
• Support for iSCSI protocol V1.0
• ATTO ExpressNAV
TM
, integrated web server for
configuration, upgrades, monitoring and
management
• Available as a desktop or embedded form factor
• 10/100 Ethernet management port for LAN-
based monitoring and management
• Command Line Interface (CLI) for configuration
and management
• RS-232 serial port with RJ11 connector
• Diagnostic capabilities
• Support for manual and auto LUN mapping
• Intelligent Bridging Architecture
TM
for optimized
performance
• Up to 37MB/sec. throughput
iPBridge 1550 features
• One independent Gigabit Ethernet port and one
independent Ultra3 SCSI port
• Support for iSCSI protocol V1.0
• ATTO ExpressNAV
TM
, integrated web server for
configuration, upgrades, monitoring and
management
• Available as a desktop or embedded form factor
• 10/100 Ethernet management port for LAN-
based monitoring and management
• Command Line Interface (CLI) for configuration
and management
• RS-232 serial port with RJ11 connector
• Diagnostic capabilities
• Support for manual and auto LUN mapping
• Intelligent Bridging Architecture
TM
for optimized
performance
• Near wire speed sustained throughput
• Virtual Device Architecture for features such as
hardware RAID and Virtual Tape
• Ideal solution for connecting high performance
tape and disk devices to an IP Storage Area
Network (SAN)
• Up to 100 MB/sec. throughput

2
Installation
Tape Library NDMP Storage
ATTO FibreBridge ATTO iPBridge
Gb-E Switch
Storage
Virtualization
Software
Backup Software
Tape Backup Software
2-Gb FC Switch
Possible SAN/NAS
configuration
Storage Arrays
Ethernet
Fibre Channel
SCSI
embedded
ATTO FibreBridge
Storage Media
Tape, CD, MO, DVD

3
ATTO Technology Inc. iPBridge Installation and Operation Manual
1.1 ATTO iPBridge 1500E
The ATTO iPBridge 1500E is a 1-Gigabit Ethernet to SCSI embeddable bridge for midrange
performance, cost effective solutions in SMB/SME environments.
The iPBridge 1500E includes a single Ethernet
port which may be used for either data transfer or
configuration, a serial management port and a
SCSI port.
Dimensions
Length: 6.4 inches
Width: 4.4 inches
Height of the tallest component: .536 inches
Environment
Operating Temperature: 5-40° C external
Ambient air should not exceed 40°C.
Humidity: 10-90% non-condensing
Recommended airflow: 11 cubic feet per minute
Power
The iP1500E board may be powered from a 4-pin
connector.
Input voltage: 12V DC ±10% derived from a 4-
pin connection.
Power draw: 12V, 1.7 amps
Reset switch
A manual reset switch is mounted on the board
near the serial port.
SCSI port
The SCSI port on the iPBridge 1500E connects
storage devices into the Storage Area Network
(SAN). The port is an Ultra 3 LVD/SE SCSI bus
with 68-pin “P” interface: 160 MB/sec. maximum
throughput, downward compatible with all forms
of single-ended SCSI.
The iPBridge supports SCSI devices including
hard disk drives, tape drives RAID controllers,
DVD, MO and CD libraries.
Ethernet port
The 10/100/1000 GbE RJ45 Ethernet port uses the
Intel 8254x family gigabit Ethernet to support
Telnet-based data transfer and management
through a an ASCII-based command line
interface or ATTO ExpressNAV, a browser-based
interface.
GbE cables must be at least CAT-5E certified for
1000 Mb/sec. use.
Serial port
The RS-232 serial port provides support for
remote monitoring and management through a
command line interface. It is set at the factory at
115,200 bps.
LED indicators
Activity: A green LED in the middle of the
iPBridge blinks to show the unit is ready and to
identify the iPBridge when the CLI command
IdentifyBridge
is enabled. It goes dark when there is
SCSI activity.
SCSI Activity: the SCSI bus has an LED which is
lit when the iPBridge is ready and goes dark when
there is SCSI activity.
4- pin power connector pin outs
Pin Description
1 12 volt input
2 Ground
3Ground
4 No connect
Pin outs of the RJ11
connector, part number
CBL-0911-001
Pin Description
2TXD
3Ground
4RXD
5Ground

4
Installation: ATTO iPBridge 1500E
Exhibit 1.1-1 iPBridge 1500E board layout
Exhibit 1.1-2 iPBridge 1500E board profile and dimensions
Installation instructions
1 Install the iPBridge 1500E in the target device
using the mounting holes in the board. (See the
board layout diagram in Exhibit )
2 Connect SCSI devices to the iPBridge. (See
Connecting SCSI devices to the SCSI port on
page 11)
3 Connect the iPBridge to your SAN: attach CAT
6 or CAT 5E cables to the Ethernet port on the
iPBridge or connect an RJ11 and adapter
crossover serial cable (null modem) between
the iPBridge serial port and one of the
computer's serial COM ports.
4 Connect the power connector and power up.
5 Boot the computers on the SAN.
6 Access iPBridge Services via the Ethernet port.
(See Configuring the iPBridge on page 13) or
the serial port (Connecting using the serial port
on page 14)
7 Verify that the bridge can be accessed on the
local Ethernet network by using the
Ping utility.
(See Step 7 on page 15)
8 Set up the configuration for the devices
connected to the iPBridge (See Managing the
iPBridge on page 17.)
9 Power cycle the iPBridge. The iPBridge will
automatically map the devices on startup
Mounting hole
Mounting hole
Mounting hole
Mounting hole
Mounting hole
SCSI port
Ethernet port
SCSI Activity LED
Reset
Serial port
4-pin
power
connector
SCSI Activity
LED
Fault LED SCSI Activity
LED
pin 1
.3 4 3
.536
.3 1 3
Long Board Edge
Ethernet Port SCSI Port Power
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 Port
.3 4 3
.536
.3 1 3
.3 4 3
.536
.3 1 3
Long Board Edge
Ethernet Port SCSI Port Power
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 Port
.3 3 1
.2 7 6
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 PortRJ-11 Port-11 Port

5
ATTO Technology Inc. iPBridge Installation and Operation Manual
1.2 ATTO iPBridge 1500D
The ATTO iPBridge 1500D is a 1-Gigabit Ethernet to SCSI embeddable bridge for midrange
performance, cost effective solutions in SMB/SME environments.
The iPBridge 1500E includes a single Ethernet
port which may be used for either data transfer or
configuration, a serial management port and a
SCSI port.
Dimensions
Width: 7.5 inches wide
Depth: 5.0 inches long
Height: 1.76 inches
Environment
Operating Temperature: 0-70° C external
Ambient air should not exceed 40°C.
Humidity: 10-90% non-condensing
Recommended airflow: 11 cubic feet per minute.
Power
Plug in the 12 volt, 20 Watt wall mount adapter to
the back of the unit, then into an appropriate
power source (100-240 VAC input, 50/60 Hz).
The power source must be connected to a
protective earth ground and comply with local
electrical codes. Improper grounding may result
in an electrical shock or damage to the unit.
Input voltage: 12.0V DC +10%
SCSI port
The SCSI port on the iPBridge 1500E connects
storage devices into the Storage Area Network
(SAN). The port is an Ultra 3 LVD/SE SCSI bus
with 68-pin “P” interface: 160 MB/sec. maximum
throughput, downward compatible with all forms
of single-ended SCSI.
The iPBridge supports SCSI devices including
hard disk drives, tape drives RAID controllers,
DVD and CD libraries.
Ethernet port
The 10/100/1000 GbE RJ45 Ethernet port uses
the Intel 8254x family gigabit Ethernet
controllers to support Telnet-based data transfer
and management through an ASCII-based
command line interface or ATTO ExpressNAV, a
browser-based interface.
GbE cables must be at least CAT-5E certified for
1000 Mb/sec. use.
LED indicators
Activity: A green LED on the top of the iPBridge
blinks to show the unit is ready and to identify the
iPBridge when the CLI command IdentifyBridge is
enabled. It goes dark when there is SCSI activity.
SCSI Activity: the SCSI bus has an LED which is
lit when the iPBridge is ready and goes dark when
there is SCSI activity.
Reset switch
A manual reset switch is mounted on the board.
Insert a tool in the hole in the back panel to
activate the switch.
SCSI ID LED

6
Installation: ATTO iPBridge 1500D
Exhibit 1.2-1 iPBridge 1500D back panel
Installation instructions
1 Place the iPBridge 1500D where you want it.
2 Connect SCSI devices to the iPBridge. (See
Connecting SCSI devices to the SCSI port on
page 11)
3 Connect the iPBridge to your SAN: attach CAT
6 or CAT 5E cables to the Ethernet port on the
iPBridge or connect an RJ11 and adapter
crossover serial cable (null modem) between
the iPBridge serial port and one of the
computer's serial COM ports.
4 Connect the power connector and power up.
5 Boot the computers on the SAN.
6 Access iPBridge Services via the Ethernet port.
(See Configuring the iPBridge on page 13) or
the serial port (Connecting using the serial port
on page 14)
7 Verify that the bridge can be accessed on the
local Ethernet network by using the
Ping utility.
(See Step 7 on page 15)
8 Set up the configuration for the devices
connected to the iPBridge (See Managing the
iPBridge on page 17.)
9 Power cycle the iPBridge. The iPBridge will
automatically map the devices on startup.
air vents power
connector
Power
LED
SCSI port
activity LED
Ethernet
speed LED
Ethernet
activity LED

7
ATTO Technology Inc. iPBridge Installation and Operation Manual
1.3 ATTO iPBridge 1550E
The iPBridge 1550E includes a single Ethernet port which may be used for either data transfer or
configuration, a serial management port and a SCSI port.
Dimensions
Length: 6.4 inches
Width: 4.4 inches
Height of the tallest component: .536 inches
Environment
Operating Temperature: 5-40° C external
Ambient air should not exceed 40°C.
Humidity: 10-90% non-condensing
Recommended airflow: 11 cubic feet per minute
Power
The iP1500E board may be powered from a 4-pin
connector.
Input voltage: 12V DC ±10% derived from a 4-
pin connection.
Power draw: 12V, 1.7 amps
Reset switch
A manual reset switch is mounted on the board
near the serial port.
SCSI port
The SCSI port on the iPBridge 1550E connects
storage devices into the Storage Area Network
(SAN). The port is an Ultra 3 LVD/SE SCSI bus
with 68-pin “P” interface: 160 MB/sec. maximum
throughput, downward compatible with all forms
of single-ended SCSI.
The iPBridge supports SCSI devices including
hard disk drives, tape drives RAID controllers,
DVD, MO and CD libraries.
Ethernet port
The 10/100/1000 GbE RJ45 Ethernet port uses the
Intel 8254x family gigabit Ethernet to support
Telnet-based data transfer and management
through a an ASCII-based command line
interface or ATTO ExpressNAV, a browser-based
interface.
GbE cables must be at least CAT-5E certified for
1000 Mb/sec. use.
Serial port
The RS-232 serial port provides support for
remote monitoring and management through a
command line interface. It is set at the factory at
115,200 bps.
LED indicators
Activity: A green LED in the middle of the
iPBridge blinks to show the unit is ready and to
identify the iPBridge when the CLI command
IdentifyBridge
is enabled. It goes dark when there is
SCSI activity.
SCSI Activity: the SCSI bus has an LED which is
lit when the iPBridge is ready and goes dark when
there is SCSI activity.
4- pin power connector pin outs
Pin Description
1 12 volt input
2 Ground
3Ground
4 No connect
Pin outs of the RJ11
connector, part number
CBL-0911-001
Pin Description
2TXD
3Ground
4RXD
5Ground

8
Installation: ATTO iPBridge 1550E
Exhibit 1.3-1 iPBridge 1550E board layout
Exhibit 1.3-2 iPBridge 1550E board profile and dimensions
Installation instructions
1 Install the iPBridge 1550E in the target device
using the mounting holes in the board. (See the
board layout diagram in Exhibit )
2 Connect SCSI devices to the iPBridge. (See
Connecting SCSI devices to the SCSI port on
page 11)
3 Connect the iPBridge to your SAN: attach CAT
6 or CAT 5E cables to the Ethernet port on the
iPBridge or connect an RJ11 and adapter
crossover serial cable (null modem) between
the iPBridge serial port and one of the
computer's serial COM ports.
4 Connect the power connector and power up.
5 Boot the computers on the SAN.
6 Access iPBridge Services via the Ethernet port.
(See Configuring the iPBridge on page 13) or
the serial port (Connecting using the serial port
on page 14)
7 Verify that the bridge can be accessed on the
local Ethernet network by using the
Ping utility.
(See Step 7 on page 15)
8 Set up the configuration for the devices
connected to the iPBridge (See Managing the
iPBridge on page 17.)
9 Power cycle the iPBridge. The iPBridge will
automatically map the devices on startup
Mounting hole
Mounting hole
Mounting hole
Mounting hole
Mounting hole
SCSI port
Ethernet port
SCSI Activity LED
Reset
Serial port
4-pin
power
connector
SCSI Activity
LED
Fault LED SCSI Activity
LED
pin 1
.3 4 3
.536
.3 1 3
Long Board Edge
Ethernet Port SCSI Port Power
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 Port
.3 4 3
.536
.3 1 3
.3 4 3
.536
.3 1 3
Long Board Edge
Ethernet Port SCSI Port Power
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 Port
.3 3 1
.2 7 6
.3 3 1
.2 7 6 Short Board Edge
Ethernet PortRJ-11 Port-11 PortRJ-11 Port-11 Port

9
ATTO Technology Inc. iPBridge Installation and Operation Manual
1.4 ATTO iPBridge 1550D
The ATTO iPBridge 1550D is a 1-Gigabit Ethernet to SCSI embeddable bridge for high performance,
cost effective solutions in SMB/SME environments.
The iPBridge 1550E includes a single Ethernet
port which may be used for either data transfer or
configuration, a serial management port and a
SCSI port.
Dimensions
Width: 7.5 inches wide
Depth: 5.0 inches long
Height: 1.76 inches
Environment
Operating Temperature: 0-70° C external
Ambient air should not exceed 40°C.
Humidity: 10-90% non-condensing
Recommended airflow: 11 cubic feet per minute.
Power
Plug in the 12 volt, 20 Watt wall mount adapter to
the back of the unit, then into an appropriate
power source (100-240 VAC input, 50/60 Hz).
The power source must be connected to a
protective earth ground and comply with local
electrical codes. Improper grounding may result
in an electrical shock or damage to the unit.
Input voltage: 12.0V DC +10%
SCSI port
The SCSI port on the iPBridge 1550E connects
storage devices into the Storage Area Network
(SAN). The port is an Ultra 3 LVD/SE SCSI bus
with 68-pin “P” interface: 160 MB/sec. maximum
throughput, downward compatible with all forms
of single-ended SCSI.
The iPBridge supports SCSI devices including
hard disk drives, tape drives RAID controllers,
DVD and CD libraries.
Ethernet port
The 10/100/1000 GbE RJ45 Ethernet port uses the
Intel 8254x family gigabit Ethernet controllers to
support Telnet-based data transfer and
management through an ASCII-based command
line interface or ATTO ExpressNAV, a browser-
based interface.
GbE cables must be at least CAT-5E certified for
1000 Mb/sec. use.
LED indicators
Activity: A green LED on the top of the iPBridge
blinks to show the unit is ready and to identify the
iPBridge when the CLI command
IdentifyBridge is
enabled. It goes dark when there is SCSI activity.
SCSI Activity: the SCSI bus has an LED which is
lit when the iPBridge is ready and goes dark when
there is SCSI activity.
Reset switch
A manual reset switch is mounted on the board.
Insert a tool in the hole in the back panel to
activate the switch.
SCSI ID LED

10
Installation: ATTO iPBridge 1550D
Exhibit 1.4-1 iPBridge 1550D back panel
Installation instructions
1 Place the iPBridge 1550D where you want it.
2 Connect SCSI devices to the iPBridge. (See
Connecting SCSI devices to the SCSI port on
page 11)
3 Connect the iPBridge to your SAN: attach CAT
6 or CAT 5E cables to the Ethernet port on the
iPBridge or connect an RJ11 and adapter
crossover serial cable (null modem) between
the iPBridge serial port and one of the
computer's serial COM ports.
4 Connect the power connector and power up.
5 Boot the computers on the SAN.
6 Access iPBridge Services via the Ethernet port.
(See Configuring the iPBridge on page 13) or
the serial port (Connecting using the serial port
on page 14)
7 Verify that the bridge can be accessed on the
local Ethernet network by using the
Ping utility.
(See Step 7 on page 15)
8 Set up the configuration for the devices
connected to the iPBridge (See Managing the
iPBridge on page 17.)
9 Power cycle the iPBridge. The iPBridge will
automatically map the devices on startup.
air vents power
connector
Power
LED
SCSI port
activity LED
Ethernet
speed LED
Ethernet
activity LED

11
ATTO Technology Inc. iPBridge Installation and Operation Manual
1.5 Connecting SCSI devices to the SCSI port
The ATTO iPBridge SCSI port connects SCSI storage devices to the network.
The SCSI port is a bus capable of supporting up
to15 devices in LVD mode and each bus is
capable of 40, 80 or 160 MB/sec. (Ultra, Ultra2 or
Ultra3) transfer rates.
The SCSI bus auto-negotiates the appropriate
sync rates with the connected devices. If slower
devices are mixed with faster devices, the bus will
communicate at the rate of the slowest device,
thus wasting the performance capabilities of the
faster devices.
The iPBridge supports a wide variety of SCSI
storage devices including stand-alone drives,
removable drives, JBODs, RAIDs, tape, CD and
DVD drives, changers and libraries.
To connect SCSI devices to the ATTO iPBridge
1 Connect the cable from the SCSI device to the
68-pin HD SCSI port on the iPBridge.
2 Check the type of cable, cable length limit and
number of devices recommended for the port.
See Exhibit 1.5-1.
Keep cable lengths as short as possible to
ensure the highest signal quality and
performance. These cable lengths include the
wiring inside the devices.
3 Set the IDs of the SCSI devices connected to
the bridge to a value other than 7.
Use a sequential ID starting at 0 for each
device. The SCSI port in the ATTO iPBridge
has an internal factory setting ID of 7, typical for
a SCSI initiator device.
Note
The entire SCSI bus will operate at the speed
of the slowest device on that bus.
4 Terminate the SCSI bus after the last device.
The iPBridge is terminated internally.
To set SCSI port bus speed and transfer rates
Note
The preferred method to set parameters for
the iPBridge is to use ATTO ExpressNAV.
Refer to
Configuring the iPBridge on page 13
and
ExpressNAV provides web-based
interface on page 19.
1 Enter the Command Line Interface (see
Configuring the iPBridge on page 13)
2 Determine the current speed and transfer rates:
type
get SCSIPortBusSpeed
get SCSIPortSyncTransfer
3
SCSIPortBusSpeed controls the transfer rate at
which the iPBridge will attempt to negotiate with
its SCSI devices. Default is Ultra3
To change from the default or the current port
bus speed, type
set SCSIPortBusSpeed sb [fast|ultra|
ultra2|ultra3]
with sb being the SCSI bus number (0) and the
speeds being Fast, Ultra, Ultra2 or Ultra3. See
Exhibit 1.5-1.
4 If you have completed configuration operations,
type
SaveConfiguration ; if not, go on to
the next command.
5 SCSIPortSyncTransfer specifies whether
synchronous SCSI transfers should be
negotiated with devices on the SCSI port. The
default is
enabled . To change the setting, type
set SCSIPortSyncTransfer sb disabled
6 When you have completed configuration
operations, type
SaveConfiguration t o save the
configuration for use after a power up or
firmware restart.