ATTO Technology 1550D User Manual

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iPBridge Installation and Operation Manual

iPBridge 1550D

iSCSI to SCSI bridge

ATTO Technology, Inc.

155 CrossPoint Parkway Amherst, New York 14068 USA

www.attotech.com

Tel (716) 691-1999 Fax (716) 691-9353

Sales support: sls@attotech.com Technical support: Monday -- Friday, 8am-6pm EST

techsupp@attotech.com (716)691-1999 ext. 242

© 2009 ATTO 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. 10/09

........................................................................................................

Document Control Number: PRMA-0351-000

Contents

1 ATTO iPBridge Provides Storage Options .....................................................1

Features

1.1 Physical Attributes ..............................................................................3

Dimensions Environment Power SCSI port Ethernet port Serial port Reset switch LED indicators

2 Installation .........................................................................................................5

Unpacking the packing box; verifying contents Installing the iPBridge Installing Windows drivers Discovering the IP address. Installing MS iSCSI Initiator for Windows Installing iSCSI Initiator for Mac OS X Setting up Internet Explorer Beginning initial configuration

3 Configure the iPBridge .....................................................................................7

Preliminary steps ExpressWizard

3.1 Target Management ............................................................................9

Target names Default target node Automatically configure a single target Map devices manually Multiple target nodes Automatically configure multiple targets Manually configure multiple target nodes

3.2 iSCSI Configuration ............................................................................12

Ethernet iSCSI CHAP commands

3.3 Modify System Values ........................................................................13

Preliminary steps Modify passwords Set up a VLAN: Virtual Local Area Network Enhance performance iSCSI performance configuration tool (Windows only)

4 Remote System Monitoring .............................................................................15

SNMP

5 Troubleshooting ................................................................................................17

Inside out method Check basic diagnostic tools Check the host event log Check the iPBridge event and trace logs Visually inspect LEDs Check for problems on attached devices Check host versions Check iPBridge product versions Check components Check SCSI devices Check the iPBridge SCSI port Check the serial port Check the iPBridge internal configuration Check the iPBridge Ethernet port Check the LAN/WAN Check the iSCSI Host Adapter or NIC Check the iSCSI OS driver Check the Operating System Check the applications Performance issues Check SCSI devices Check the iPBridge SCSI port Check the iPBridge Ethernet port Check the LAN/WAN Check the Ethernet Host Adapter or NIC Check the applications Check the host system Check the Operating System Use the ATTO iSCSI performance configuration tool (Windows only) Optimize ATTO ExpressNAV in Internet Explorer Reset to factory defaults

6 Updating Firmware ...........................................................................................23

Using ATTO ExpressNAV Using FTP

7 Interface Options ..............................................................................................25

Using ExpressNAV Opening an ExpressNAV session Optimizing ExpressNAV in Internet Explorer Using the serial port Using Telnet

Appendix A Cabling ..............................................................................................i

SCSI cabling Cable types Examples Connecting SCSI devices to the SCSI port Ethernet connections

Appendix B CLI provides an ASCII-based interface ..........................................iii

CLI error messages CLI summary Alphabetical CLI command explanations

Appendix C Safety standards and compliances ................................................xiii

1 ATTO iPBridge Provides Storage Options

The ATTO bridge family of products provides iSCSI-to-SCSI,iSCSI-to-Fibre Channel 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 1550 is a cost-effective way of expanding your existing storage capacity without sacrificing performance. The ATTO iPBridge 1550 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

Features

• One independent Gigabit iSCSI port and one independent Ultra 320 SCSI port

• ATTO ExpressNAV™, integrated web server for configuration, upgrades, monitoring and management

• ATTO ExpressWizard, one-button initial setup for most configurations

• Inband LAN-based monitoring and management

• Command Line Interface (CLI) for configuration and management

• RS-232 serial port with RJ-11 connector

• Diagnostic capabilities

• Support for manual and auto LUN mapping

• intelligent Bridging Architecture™ for optimized performance

• Near wire speed sustained throughput

• Ideal solution for connecting high performance tape and disk devices to an IP Storage Area Network (SAN)

ATTO Technology Inc. iPBridge Installation and Operation Manual

Exhibit 1.0-1 Possible storage solutions using the iPBridge.

1.1 Physical Attributes

The ATTO iPBridge 1550D is a 1-Gigabit iSCSI to Ultra 320 SCSI desktop bridge which produces a cost-effective iSCSI solution for SMB/SME environments.

Dimensions

Width: Depth: Height:

7.5 inches wide

5.0 inches long

1.76 inches

Environment

Operating Temperature: 0-70 °C external Ambient air

Humidity:

should not exceed 40 °C

10-90% non-condensing

Power

The iPBridge 1550 uses a 12-volt power brick connected to an appropriate power source. 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:

100-240 VAC, 0.5A@100v, 47-63 Hz

12v@1.5A

SCSI port

The SCSI port is an Ultra 320 LVD/SE SCSI bus with 68-pin “P” interface; downward compatible with all forms of low voltage differential and single-ended SCSI.

iSCSI port

The 10/100/1000 GbE RJ-45 iSCSI port uses the Intel 8254x family gigabit Ethernet chipset to support iSCSI data transfer and inbound management. GbE cables must be at least CAT-5E certified.

Serial port

An RS-232 serial port provides support for remote monitoring and management. The serial port is set at the factory at 115,200 bps.

Reset switch

A manual reset switch is mounted on the back panel. Insert a tool in the hole in the back panel to activate the switch, wait until the Activity LED on the top of the iPBridge becomes green, then cycle power. The iPBridge is reset to factory defaults.

LED indicators

Ready/SCSI Port Activity:

and on the back of the iPBridge lights solid green to indicate ready and blinks to show SCSI activity and to identify the iPBridge when commanded by software.

Ethernet port:

Ethernet connector. One lights solid green to denote a complete link and blinks green to show activity. A bicolor green/yellow LED lights yellow to indicate 1 Gb/sec. transmission speed and lights green to show 100 Mb/sec. speed.

two LEDs are integrated into the

a green LED on the top

ATTO Technology Inc. iPBridge Installation and Operation Manual

Exhibit 1.1-1 iPBridge 1550D back panel

2 Installation

Note

CAUTIONCAUTION

Note

If you have not already completed the instructions on the Quick Start packed with your iPBridge, use the following instructions to install the iPBridge.

Unpacking the packing box; verifying contents

• The iPBridge Note the serial number of your iPBridge, located on the bottom of the unit, for later use: ____________________________________

• Power cord

• Power brick

• CD which includes the iPBridge firmware, the

Installation and Operation Manual, the ATTO QuickNAV program and ATTO iPBridge drivers.

Installing the iPBridge

1 Place the iPBridge on a stable flat surface. 2 Connect the host computer to the iSCSI port. 3 Connect SCSI devices to the iPBridge using the

proper SCSI cables. For details refer to Cabling on page i of the Appendix.

4 Power up the SCSI devices. Proper termination

is required.

You must power up attached devices before adding power to the iPBridge.

Installing Windows drivers

1 Windows automatically detects the iPBridge

and asks for the driver in the Add Hardware wizard. Select Install from a list or specific

location.

2 Click Next. 3 Choose Don’t Search. 4 Click Next. 5 Choose Have disk. 6 Specify the driver as found in the PC folder in

the setup CD. The files are in a folder based on your operating system: Win2K drivers for Windows 2000 and Windows XP/2003 drivers for all 2003 Server products.

7 Follow the remaining instructions to complete

8 After the driver is installed, the iPBridge is listed

Use the files directly from the CD or copy them onto a floppy or to a local directory on your hard drive.

the installation procedure.

in the System Devices folder.

5 Connect the iPBridge Ethernet port to your

network using at least Cat5e cable. For details refer to Cabling

6 Connect the AC power cord from the iPBridge

to the proper AC source outlet, connect the AC power cord to the power brick and connect the brick to the iPBridge.

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.

7 Wait for the iPBridge Ready LED to light

indicating the bridge has completed its poweron self test sequence.

8 Windows

Windows drivers; Mac® users continue to Discovering the IP address.

on page i of the Appendix.

users continue to Installing

Discovering the IP address.

1 From the CD supplied with your iPBridge, run

the QuickNav Utility QuickNAV-windows.exe for Windows or QuickNAV-Mac for Mac OS X.

2 Locate the iPBridge with the serial number

recorded earlier.

3 Highlight the serial number. 4 Click Next.

If a DHCP server is available on your network,

an address is assigned automatically by the

server. Note the assigned address: _____________________________________ If you do not have a DHCP server, get an IP

address and subnet mask from your network

administrator, type it into the area provided, and

select Next. Note the IP address and subnet

mask here._____________________________

5 Click on Launch Browser.

Your browser points to the ATTO ExpressNAV

splash screen.

ATTO Technology Inc. iPBridge Installation and Operation Manual

Windows users continue to Installing MS iSCSI

Note

Initiator for Windows; Mac users continue to Installing iSCSI Initiator for Mac OS X

If you use Internet Explorer, use Setting up

Internet Explorer if needed.

Installing MS iSCSI Initiator for Windows

1 Download the latest version of Microsoft

Software Initiator from

www.microsoft.com/downloads. Searching

on iSCSI Initiator usually helps to locate it.

2 Launch the Initiator installation program and

follow the instructions.

3 Find the Microsoft iSCSI Initiator icon on your

desktop and launch the program.

4 Click on the Discovery tab. 5 Click on the Add button under the target portal

heading.

6 Type in the iPBridge IP address previously-

recorded in Discovering the IP address. page 5.

7 Click on OK. 8 Click the Targets tab. 9 Click on Log on button. 10 Select Automatically restore this connection

when the system reboots.

11 Click OK to complete logon. 12 If the Found New Hardware Wizard appears,

follow the instructions and install the iPBridge driver from the CD that came with your iPBridge.

13 Click OK to close the iSCSI Initiator utility.

You should now have storage you can manage through Windows Disk Management. Continue to Beginning initial configuration

iSCSI

Installing iSCSI Initiator for Mac OS X

Contact your ATTO sales representative or go to

www.attotech.com

Technology Xtend SAN, iSCSI Initiator for Mac OS X.

to purchase the ATTO

Setting up Internet Explorer

1 Open your browser. 2Select Internet Options. 3 In the Internet Options screen, select the

Security tab. 4 Click on the Trusted Sites icon. 5 Click on the Sites button. 6 In the text box Add this Web site to the zone,

add the IP address of the iPBridge. You may

use wild cards. 7 Click on Add. 8 Uncheck the Require server verification

check box. 9 Click OK. 10 At the bottom of the Internet Options box, click

on OK and close the box.

Beginning initial configuration

1 Return to the ExpressNAV interface welcome

screen. Click on Enter Here. 2 Type in the user name and password.

The default values are user name password insensitive and the password is case sensitive.It is best practice to change the default user name and password. Refer to

Modify passwords

3The Status page appears. Continue to

Configure the iPBridge

Password

on page 13.

. The user name is case

on page 7.

root

and

3 Configure the iPBridge

To configure the ATTO iPBridge, use ATTO ExpressNAV. Default values are appropriate for most configurations, but may be modified. The ExpressWizard simplifies initial configuration of the iPBridge.

Default values are appropriate for most applications. If you wish to change these values, use ATTO ExpressNAV, a browser-based graphical interface. Other methods are also available. Refer to

Options

on page 25.

Interface

Preliminary steps

1 If you are not already in

the ExpressNAV interface, type the IP address of your iPBridge in a standard browser as found in

Using ExpressNAV

page 25, click Enter Here, type in your user name and password, and click OK.

2The Status page

appears. You may view the

default settings by clicking on each element in the left hand menu, then continue in one of three ways:

If you do not use the ExpressWizard, continue to

• Mapping and addressing, also known as Target

Management on page 9

• iSCSI Configuration

• Modify System Values

• Review the settings, keeping the automatic settings created when you powered up your iPBridge and do nothing now.

• Use the ExpressWizard, accessed from the side menu, to initially set up your iPBridge and its attached storage for specific applications automatically.

• Use the individual pages listed on the side menu to make changes or use other features as needed.

on page 12

on page 13

ExpressWizard

Most applications may be set up automatically using the ExpressWizard from the ExpressNAV interface. The ExpressWizard simplifies initial configuration of the iPBridge

1 Follow the Preliminary steps. 2 From the side menu select ExpressWizard. 3 Select your storage type

• Digital video disk storage: optimized for

digital video (sequential access) configurations

• Digital audio disk storage: optimized for

audio applications (sequential access)

ATTO Technology Inc. iPBridge Installation and Operation Manual

• IT/database disk storage optimized for general IT and database applications (random access).

• Tape storage

• Optical storage

4 Click Next. 5 In the Devices Detected page, click on

Rescan to ensure all the devices you wish in your storage configuration are present. The ExpressWizard uses all attached storage for the configuration.

6 When all devices are listed, click Next. 7 Set your administrator password. 8 Click Next.

9 Select the answer to the question Does your

network support Jumbo Frames?

10 Click Next. 11 Data port IP address, subnet mask and

gateway information is listed. Change any elements as needed.

12 Click Next.

13 The configuration for the iPBridge based on

your input in the previous screens appears. If the information is correct, click Commit.

14 The ExpressWizard configures your iPBridge

and storage. You may select items on the left side menu to view the current configuration or to change the configuration at any time.

3.1 Target Management

CAUTIONCAUTION

Storage devices are mapped using the designations for the iSCSI LUN. The easiest way to map devices is to use the Automatic Target Management feature in the ATTO ExpressNAV interface.

• You may map each device to its own target, breaking the single iSCSI target node into

Changing the device map can affect the host’s view of devices and your application configuration.

To map SCSI devices, you must connect the devices to the iPBridge SCSI port. To access mapped SCSI devices over iSCSI, you must have a host computer connected to the iPBridge iSCSI data port.

If you decide to change the automatic mapping set up when you powered up the iPBridge, you have two options to map devices after you disable automatic mapping:

• You may map devices manually to the single default node.

Default target node

multiple nodes. Multiple target nodes allow flexibility to grant or deny access between initiators and devices.

If you divide the default single target node into multiple target nodes, you must set up access to each node separately.

Target names

Each iSCSI target node is identified by a unique worldwide iSCSI-qualified name which references the iPBridge serial number and target node name:

iqn.1995-12.com.attotech:ipbridge: serialnumber <targetname>

The default target is set as a single target with Access Control (ACL) disabled and CHAP authentication disabled. The default target node cannot be deleted.

Use the ExpressNAV interface to map devices automatically or manually. Refer to

ExpressNAV session

about ExpressNAV.

on page 25 for information

Opening an

Automatically configure a single target

1 If you have not already, open an ExpressNAV

session. For instructions, refer to Opening an

ExpressNAV session on page 25, click Enter

Here, type in your user name and password, and click OK.

2The Status page appears. From the

ExpressNAV menu, select Auto Target Mgt.

3 Click on the Map all devices to default target

button.

4 When the action is complete, the iSCSI Target

Management page appears. Make any adjustments to the mapping or begin a discovery session.

5 When the action is complete, the iSCSI Target

Management page appears. From there you

may make adjustments to the mapping or begin a discovery session.

If you are prompted to restart the iPBridge, go to the Firmware Restart page and restart the iPBridge.

Map devices manually

1 If you have not already, open an ExpressNAV

session. For instructions, refer to Opening an

ExpressNAV session on page 25, click Enter

Here, type in your user name and password, and click OK.

2The Status page appears. Select the Manual

Target Mgt menu item on the left panel.

3 Click on the Device Maps link of the default

target.

4 Select the devices from the box on the right

panel and drag to the appropriate LUN on the central panel.

5 Click Submit.

If you are prompted to restart the iPBridge, go to the Firmware Restart page and restart the iPBridge.

Multiple target nodes

Multiple targets allow you to create a more configurable mapping scheme which can segregate

ATTO Technology Inc. iPBridge Installation and Operation Manual

storage into different iSCSI nodes within the iPBridge,

Note

with each iSCSI target having its own set of access criteria.

For example, if you have two servers and a library with four tapes and a media changer, the default node would provide both servers access to all tapes and the media changer (default target mode).

If you configured multiple target nodes, you are able to map some devices to one server and other devices to the other server, requiring separate user names and passwords for access using various methods including Access Control Lists, iSNS and CHAP authentication. Consult with your network administrator and refer to

Exhibit 3.1-1

If you map actual storage to more than one iSCSI target and a server has authorization for both targets, the server could show duplicate storage without any warning.

Automatically configure multiple targets

1 If you have not already, open an ExpressNAV

session. For instructions, refer to Opening an

ExpressNAV session on page 25

2 From the ExpressNAV main menu, click on the

Automatic Target Management menu item on the left side of the screen.

3 Click on the Map each device to its own

target button. A target name suffix is attached to the iqn of

each SCSI device such as

vendorid-devicename-xxx

• vendorid is the SCSI device vendor ID

• devicename is the SCSI device’s inquiry

device name.

• xxx is a device index When the action is complete, the iSCSI Target

Management page appears. If you are prompted to restart the iPBridge, go to the Firmware Restart page and restart the iPBridge.

Manually configure multiple target nodes

1 If you have not already, open an ExpressNAV

session. For instructions, refer to Opening an

ExpressNAV session on page 25

2The Status page appears. Select Auto Target

Mgt menu item on the left side of the screen.

3 In the iSCSI Target Management page, type

[name] in the Add an iSCSI target box. The name is a suffix appended to the standard

IPBridge iqn name. The suffix name can be up to 24 characters.

4 Click on the device map link of your target. 5 After the next mapping page opens, drag the

boxes representing devices to the LUNs you want.

6 Click Submit. 7 Repeat from Step 3

configure.

8 If you are prompted to restart the iPBridge, go

to the Firmware Restart page and restart the iPBridge.

for each node you want to

Exhibit 3.1-1 Target node configurations.

ATTO Technology Inc. iPBridge Installation and Operation Manual

3.2 iSCSI Configuration

Note

You may fine-tune the iPBridge using the ATTO ExpressNAV interface.

Several special iPBridge features may be accessed using the ExpressNAV graphical user interface. For details on each command, refer to

ASCII-based interface

1 If you are not already in the ExpressNAV

interface, type the IP address of your iPBridge in a standard browser as found in Using

ExpressNAV on page 25, click Enter Here,

type in your user name and password, and click OK.

2The Status page appears. Click on the menu

item which regulates the parameter you wish to change.

• Ethernet

• iSCSI iSNSServer, Speedwrite

• CHAP commands Target in the Manual Target Mgt menu

3 Click Submit on each page after you make

changes to save your choices. When you have completed all changes, go to the Restart page and click on Restart.

: iSCSI port number

iSCSI Alias, ISNS Login Control,

on page iii of the Appendix.

: iSCSI Chap Secret, iSCSI

CLI provides an

iSNSServer

Specifies whether the IP address of a valid iSNS server from which the iPBridge will attempt iSCSI initiator discovery. Setting to 0.0.0.0 disables the iSNS server lookup. Default is 0.0.0.0.

SpeedWrite

When enabled, improves the performance of WRITE commands to SCSI devices attached to the iPBridge.

CHAP commands

To find the CHAP commands, 1 Click on the Manual Target Mgt menu item. 2 Click on the Target Management page. 3 Click on the iSCSI CHAP table entry next to the

iSNS Login Control cannot be used with Access Control found on the

Management

iSCSI target you wish to use.

iSCSI Target

page.

Ethernet

Click on the

iSCSI Port Number

Specifies the port number whereby the iPBridge listens for iSCSI connections. The port number must be between 1024 and 65535 except for port 860. The default is 3260.

Ethernet

menu item.

iSCSI

Click on the

iSCSI Alias

Provides a human-readable name assigned to the iPBridge. Aliases may be 1 to 64 characters long and may contain spaces if spaces are enclosed in quotation marks. The default is a blank space.

iSNS Login Control

Specifies whether the iPBridge will delegate its access control/authorization to an iSNS server. Default is disabled.

iSCSI

menu item.

iSCSI CHAP

iSCSI CHAP controls whether CHAP (Challenge Handshake Authentication Protocol) is used for the iSCSI protocol. If CHAP is enabled, the target requires the initiator to negotiate CHAP authentication using CHAP secrets (passwords). An initiator may reject this negotiation.

iSCSI Chap Secret

Specifies the incoming and outgoing secrets (passwords) for iSCSI CHAP sessions. Secrets are case sensitive, 12 to 32 characters (16 for Microsoft iSCSI initiator), and cannot contain spaces. different.

secret is for authentication of the server to the

iPBridge. The iPBridge can store up to 32 in secrets. An

out

secret is for authentication of the iPBridge to the server. There is only one out secret per target that cannot be deleted.

and

out

secrets must be

iSCSI Target

Creates or deletes an iSCSI target name. The target name acts as a suffix to the standard bridge iSCSIqualified name. The target name may not exceed 24 characters.

3.3 Modify System Values

Default values, even if you have not used the ExpressWizard, are appropriate for most configurations, but may be modified.

Preliminary steps

1 If you are not already in the ExpressNAV

interface, type the IP address of your iPBridge in a standard browser as found in Using

ExpressNAV on page 25, click Enter Here,

Modify passwords

1 Follow the Preliminary steps 2 Click Bridge.

The Bridge Configuration page is displayed.

type in your user name and password, and click OK.

2The Status page appears.

View the default settings by clicking on each element in the left hand menu, then use the individual pages listed on the side menu to make changes or use other features.

3 Enter the Administrator (Admin) password

where indicated.

4 Enter appropriate information into the New

Admin Password, Confirm New Admin Password or New Read Only Password and Confirm New Read Only Password text

boxes.

5 Click Submit. 6 Go to the Restart page and restart the

iPBridge.

The Administrator user name that you are currently logged in with and the current read only user name, if present, are displayed in their text boxes.

Set up a VLAN: Virtual Local Area Network

A Virtual LAN (VLAN) is a group of devices on the same physical LAN which can communicate with each other as if they were all on different physical LANs. This creates a network that is independent of physical location, allows grouping of users into logical workgroups, increases efficient use of resources, and adds security options by allowing some users into the LAN and keeping other users out.

You may create up to eight Virtual LAN IDs for each iSCSI data port. Each VLAN ID is assigned a VLAN name of up to 64 characters. If no VLAN Id exists for a data port, VLAN is disabled for that port.

1 Follow the Preliminary steps 2 Click on the Ethernet menu item.

3The Ethernet Port Configuration page

appears. Add a VLAN ID number and name in the appropriate boxes.

4 Press Submit. 5 Go to the Restart page and restart the

iPBridge. After rebooting, Virtual LAN takes effect.

Once VLAN has been enabled on a data port, some features require a VLAN ID to be specified for that port: SNTP (see

Remote Management iSCSI

Time & Date

page).

page), SNMP Traps (see

page) and iSNS Server (see

ATTO Technology Inc. iPBridge Installation and Operation Manual

Enhance performance

Note

If you used ExpressWizard to set up your iPBridge, changing these parameters may interfere with ExpressWizard settings.

Default values, even if you have not used the ExpressWizard, are appropriate for most configurations, but may be modified.

1 Follow the Preliminary steps. 2 On the iSCSI page, enable SpeedWrite. 3 On the Ethernet page, change MTU to 9014.

If you change the MTU on the iPBridge, you must enable jumbo frames on your initiator and change the MTU on the initiator.

4 For Windows operating systems, use the ATTO

iSCSI performance configuration tool (Windows only).

iSCSI performance configuration tool (Windows only)

The ATTO iSCSI performance configuration tool changes the Windows registry parameters for Microsoft iSCSI Initiator and TCP/IP to enhance overall data throughput.

1 From the CD which came with your iPBridge,

copy the Perftune.exe file to your hard drive.

2 Execute the program. 3 Click on Use ATTO Performance Settings.

Settings take effect on the next system reboot.

The following settings are affected:

FirstBurstLength

The maximum amount, in bytes, of unsolicited data an iSCSI initiator may send to the target during the execution of a single SCSI command including the immediate data and the sequence of unsolicited Data-Out PDUs which follow the command.

MaxBurstLength

ATTO value: 1048576 decimal 00100000 hex

FirstBurstLength

cannot exceed

MaxBurstLength

The maximum SCSI data payload, in bytes, in a Data-In or a solicited Data-Out iSCSI sequence. A sequence consists of one or more consecutive Data-In or Data-Out PDUs that end with a Data-In or Data-Out PDU with the F bit set to one.

ATTO value: 1048576 decimal 00100000 hex

MaxRecvDataSegmentLength

The maximum data segment length, in bytes, that a transmitter (initiator or target) can receive in an iSCSI PDU. The transmitter is required to send PDUs with a data segment that does not exceed

MaxRecvDataSegmentLength

ATTO value: 1048576 decimal 00100000 hex

of the receiver.

MaxTransferLength

The maximum number of bytes that may be transferred by a single SCSI request block (SRB).

ATTO value 1048576 decimal 00100000 hex

SrbTimeoutDelta

The maximum amount of time, in seconds, before an SRB request will time out.

ATTO value 300 decimal 0000012c hex

Tcp1323Opts

This parameter controls RFC 1323 time stamps and window-scaling options. Time stamps and window scaling are enabled by default, but can be manipulated with flag bits. Bit 0 controls window scaling and bit 1 controls time stamps.

ATTO value: 1

4 Remote System Monitoring

You may set up the iPBridge to send notifications when certain events occur.

You may set up the iPBridge to send notifications when certain events occur using the

Management

You designate the person receiving notification of conditions and the level of severity which prompt notification using the Simple Network Management Protocol (SNMP).

page of the ExpressNAV interface.

Remote

SNMP

For both methods, the severity level which is report can be

• Critical means only critical event notifications

• Warning means only warnings and critical event

• All means warnings, critical events and

critical, warning or all

are sent.

notifications are sent.

informational messages are sent.

An agent resides in the iPBridge which takes information from the iPBridge and translates it into a form compatible with SNMP. If certain conditions arise, the agent sends notifications (traps) to a client.

Contact your network administrator for the MIB software and appropriate MIB file for your iPBridge.

1 Follow the Preliminary steps on page 13. 2 Click on Remote Mgt from the side menu. The

Remote Management page appears. 3 In the SNMP line, click on the enabled button. 4 In the SNMP Traps or SNMP Extended Traps

line, click on Enable. For details, refer to

SNMPTraps

page xi of the Appendix. 5 If VLAN has been enabled, specify the VLAN ID

to be used by SNMP Traps for the data port. 6 In the SNMP Trap Recipient IP addresses

section, enter the IP address of each person you

want to notify. 7 From the drop-down box next to each trap

address, select the level of severity for which

you want each address to be notified: None, All,

Critical or Warning. 8 Click on Submit.

and SNMPExtendedTraps on

9 Go to the Restart page and restart the iPBridge.

After rebooting, the iPBridge sends notifications as you set them up.

ATTO Technology Inc. iPBridge Installation and Operation Manual

5 Troubleshooting

If it is clear that a particular component system is at fault in a problem situation, go directly to that component. If it is not clear, the best approach is to troubleshoot using the inside-out method.

You may check on the status of your iPBridge using the ExpressNAV interface. You may also look for information by using the diagnostic CLI commands, enumerated in

CLI provides an ASCII-based

interface

ExpressNAV interface or by using the CLI directly. To start and use the ExpressNAV interface, including

how to access the version information, refer to

Opening an ExpressNAV session

on page iii, in the

Advanced

on page 25.

page of the

Inside out method

To troubleshoot using the inside out method, begin with the device(s) connected to the iPBridge first, then work your way out.

• SCSI devices

• iPBridge SCSI port

• iPBridge internal configuration

• iPBridge Ethernet/iSCSI port

• LAN/WAN

• Ethernet host adapter or NIC in host

• Initiator

• OS

• Application

Check basic diagnostic tools

Check the host event log

Check the event log on the host. Look for the most recent entries and determine what could be causing a problem, then go to that event and continue troubleshooting.

Check the iPBridge event and trace logs

Check the iPBridge event log through the CLI. Look for the most recent entries and determine what could be causing a problem. Then go to that event and continue troubleshooting.

Visually inspect LEDs

Light Emitting Diodes (LEDs) are located the back of the iPBridge.

Each SCSI bus has its own LED which lights when the iPBridge is ready and blinks steadily when there is SCSI activity.

ATTO Technology Inc. iPBridge Installation and Operation Manual

Check for problems on attached devices

Check the following in order to find problems on attached devices:

• LEDs

• Display panels

• Firmware levels

• Operability

Check host versions

Check the following to find problems on attached hosts:

• Operating system version

• Service pack version

• Host adapter version

• Host adapter firmware version

• Host adapter device driver version

• iSCSI driver version If an update is required, perform the update. For an

updated list of supported iPBridge host platforms and host adapters, visit

www.attotech.com.

Check iPBridge product versions

For a current list of required updates, visit

www.attotech.com

1 If you have not already, open an ExpressNAV

session.

Check components

2 Go to the Status page and check the version

number.

3 If you need to update, download the update

from

www.attotech.com.

Refer to Updating

Firmware on page 23.

Check SCSI devices

1 Check SCSI devices to make sure they are all

set to different SCSI IDs. By default, the iPBridge SCSI port uses SCSI ID 7 so drives should use IDs 0 through 6 and 8 through 15.

2 Check the SCSI device power. Make sure the

devices are powering up.

3 Watch the drive lights before, during, and after

startup. Many drives have term power lights that should be on before startup and turn off when system boots.

4 Verify the external terminator is the correct type

and does not have damaged pins.

5 Check cable integrity. Check the cables for

solid connections. Make sure they are screwed down. Inspect cable ends for bent pins.

6 If termination is correct, and the problem

persists, try drives one at a time with different cables, adding drives and cables until the problem occurs. This helps pinpoint the drive or cable causing the problem.

7 Check with the manufacturer of SCSI device(s)

for further troubleshooting methods.

If SCSI devices appear to be working, continue to the iPBridge SCSI port section.

Check the iPBridge SCSI port

1 Verify the iPBridge has its termination set

properly. By default, termination is

2 Perform a SCSI bus scan on each SCSI port.

If no devices appear, re-check SCSI cables and termination. If garbage information appears, the problem is most likely a bad SCSI cable or termination.

3 Check the internal cabling of the SCSI device.

LVD SCSI cable lengths are limited to 12.5 meters. Longer cable lengths can cause problems. Internal cabling is also considered when calculating total cable length. For details, refer to Cabling

on page i of the Appendix.

enabled

4 Some older SCSI devices improperly negotiate

with the iPBridge SCSI port. If older devices are not showing up, contact your service representative.

5 If all devices appear, invoke the ScsiTargets

command several times on each SCSI port to verify that the devices can be seen. If devices disappear then appear again, the problem is most likely a SCSI cable.

If all devices appear and remain, move to the iPBridge internal configuration section.

When changing any setting on the iPBridge the configuration must be saved by using either the saveConfiguration CLI command or through the ATTO ExpressNAV interface.

Check the serial port

1 Verify you have the correct settings and that

your terminal is configured to:

• Baud rate: 115200

• Data bits: 8

• Stop bits: 1

• Parity: off

• Flow control: None

• Echo: disabled

2 Verify that your serial cable is less then two

meters in length.

Check the iPBridge internal configuration

Verify that the SCSI devices are mapped properly. Check in the ATTO ExpressNAV interface or use the

routedisplay iSCSI command to show mappings. If

devices do not appear, power down the iPBridge and power back on. Refer to page 9.

When changing any setting on the iPBridge, the configuration must be saved.

Target Management

Check the iPBridge Ethernet/iSCSI port

1 Check Ethernet cable integrity. Check the

cables for solid connections. Cat5 cable can cause connection issues with Gigabit Ethernet. Cat6 cable is the best cabling for the iPBridge.

2 Verify the IP address, subnet mask, and

gateway are properly set on each data port on the iPBridge for your network environment. Refer to Install

3 Verify that the Ethernet speed is set to auto:

invoke the get EthernetSpeed all command, check the Ethernet page of the ATTO ExpressNAV interface, or check the LED link lights to determine if the Ethernet speed is correct.

4 Determine if the iPBridge is set to get its IP

information from a DHCP server. If so, verify that the DHCP server has available IP addresses. Refer to Install

5 Verify that each used Ethernet port on the

iPBridge can be pinged from the desired host. Refer to Ping

If the host cannot ping the iPBridge port and the iPBridge port is properly configured, continue to the Local Area Network/Wide Area Network section, Check the LAN/WAN

Verify that each port on the iPBridge can ping each desired host. Refer to Ping the Appendix. If the iPBridge cannot ping the host, continue to Check the LAN/WAN

19.

6 If using DHCP, verify that the DHCP server is

assigning the correct IP information to the host.

7 Some older switches/hosts cannot auto

negotiate between the iPBridge and the switch/host at the desired speed. You may have to force the host/switch or the iPBridge to the desired speed.

8 Verify that the host is logging into the iPBridge

correctly by viewing the Connections page and determining if there a “session open” status.

9 Verify that you are using the correct log in

procedure for your initiator. For example: When connecting using the Adaptec initiator, the log on screen requests the iPBridge iqn (iSCSI qualified name). If left blank, Adaptec cannot log in. Enter “iSCSI” into this field for auto iqn discovery.

When changing any setting on the iPBridge the configuration must be saved by using either the

ation on page 5.

on page ix of the Appendix.

on page 19.

on page ix of

on page

saveConfiguration

ATTO ExpressNAV interface.

CLI command or through the

Check the LAN/WAN

1 Verify that the switch/switches are segmented

properly so that hosts and the iPBridge have access to each other.

2 If there are routers involved in the setup, make

sure the IP addresses and/or MAC addresses of the iPBridge are allowed through the router.

3 Verify that the switch can see the iPBridge on

the port(s) in question. Refer to your switch vendor’s guide for more information.

Check the iSCSI Host Adapter or NIC

iSCSI host adapters appear as a type of Storage Controller to the host OS, not as a standard NIC. These adapters usually have hardware acceleration to offload the TCP processing from the host. Configuration of these adapters is usually done through the vendor’s own utility and not through the OS itself.

NICs come in two types: accelerated and unaccelerated. Accelerated NICs use some hardware to offload some of the TCP processing from the host. Unaccelerated NICs make the OS do all TCP processing.

To check the iSCSI host adapter or NIC 1 Check cable integrity. Check the cables for

solid connections. Make sure they are plugged in properly. Inspect cable ends for broken clips and improper wiring.

2 Verify that the iSCSI host adapter or NIC is

configured with the correct IP information.

3 If using DHCP, verify that the DHCP server is

assigning the correct IP information to the host.

4 Verify that the hosts are running the

recommended driver and firmware level for the iSCSI host adapter or NIC vendor.

5 Verify that the hosts and the iPBridge are using

the same port number to communicate via iSCSI. The default port number for the iPBridge is 3260.

6 Make sure the host adapter/NIC is configured

to log into the iPBridge. Some iSCSI host adapters do not re-login upon reboot or unplug/replug event without marking a check box.

7 Some older switches cannot autonegotiate

between the host and the switch properly. You may have to force the host or switch to the desired speed.

ATTO Technology Inc. iPBridge Installation and Operation Manual

For a NIC using an OS iSCSI driver, continue to the iSCSI OS driver section.

Check the iSCSI OS driver

This section is for hosts using a driver that allows the OS to talk to iSCSI targets via a NIC, not an iSCSI storage adapter.

1 A PC using an iSCSI storage adapter and an

iSCSI OS driver might not work correctly on the same machine. Check with the vendors to make sure they are compatible.

2 Verify that the PC has the latest iSCSI driver as

well as the required service packs and patches. Check with the iSCSI OS driver vendor for more information.

3 Verify that the iSCSI OS driver has started.

Look under Device Manager for Windows or lsmod for Linux.

4 Verify that the iSCSI OS is still looking for the

iPBridge at the right IP address.

5 If using DHCP, verify that the DHCP server is

assigning the correct IP information to the host.

6 Verify that the NIC is configured with the correct

IP information.

7 Verify that the hosts and the iPBridge are using

the same port number to communicate via

iSCSI. The default port number for the iPBridge is 3260.

8 Check cable integrity. Check the cables for

solid connections. Make sure they are plugged in properly. Inspect cable ends for broken clips and improper wiring.

Check the Operating System

1 Verify that the OS has the required service

packs or patches installed. If not, obtain the proper service packs and patches and install them.

2 Some iSCSI host adapters and iSCSI OS

drivers do not always automatically find new targets when plugged in or when forced to rescan. Reboot the hosts.

3 Check if the vendor has a new driver. If so,

install it.

Check the applications

1 Verify that the application is running the latest

device drivers for the devices connected to iPBridge. If not, get the latest device drivers and install them.

2 Verify with the application vendor if the iSCSI

technology is supported on the version of the application being used.

Performance issues

If the host is not getting the performance it should, check the following items.

Check SCSI devices

1 Verify that the devices are running at their

highest possible SCSI speed. Mixing SE and LVD devices on the same SCSI

bus forces the speed of the bus to SE, thus slowing faster LVD devices. The iPBridge cannot accelerate an already slow device. Refer to Connecting SCSI devices to

port on page ii of the Appendix.

2 Verify that the proper terminator is being used.

An SE terminator forces the SCSI bus to SE speeds.

Check the iPBridge SCSI port

1 Verify that the SCSI port configuration is set to

the highest speed using the ExpressNAV interface, SCSI page.

the SCSI

The iPBridge SCSI port speed, wide negotiation, and sync negotiation settings all affect the speed of the port. By default, these settings are set for optimal speed.

Check the iPBridge Ethernet/iSCSI port

1 Verify that the data port is set to auto negotiate

or forced to 1000 Mb.

2 Verify that the MTU size is set to optimal setting

for the LAN/WAN environment. The current optimized frame size for the

iPBridge is 9k.

Check the LAN/WAN

1 Verify that the MTU size is set to optimal setting

for the LAN/WAN environment. 9k frame size is the current optimized frame size for the iPBridge. Many switch and router vendors do not support the larger frame size of 9k.

2 Verify that each associated port in the IP SAN

is configured for 1000Mbs. IP SAN traffic should be segmented so that it

does not interfere with the main LAN network traffic. For better performance, the IP SAN should be on its own set of hardware.

3 Verify that packets are not being dropped along

the LAN/WAN. Many utilities track packet activity and switch statistics.

Check the Ethernet Host Adapter or NIC

Ethernet Storage Adapters generally outperform accelerated NICs and un-accelerated NICs by offloading most of the processing from the host.

An accelerated NIC provides some offloading, but still requires a host OS iSCSI driver, making the host spend more CPU cycles.

An un-accelerated NIC does not offload anything so the CPU must do much of the processing.

To check the Ethernet host adapter or NIC 1 Verify that the adapter or NIC is sent to auto-

negotiate or forced to 1000 Mb.

2 Set the MTU size to the largest MTU size

supported in the LAN/WAN. 9k frame size is the current optimized frame

size for the iPBridge. Many switch and router vendors do not support the larger frame size of 9k. Set the maximum transfer size to the most efficient size for the intended target(s). For many tape drives, 64k is the optimal setting.

Check the applications

Some applications can be configured to change transfer sizes. Configure the application for the optimal size for the particular SCSI device(s) connected to the iPBridge.

If the adapter supports PCI-X, place the adapter in a PCI-X slot. If one is not available, the host might not achieve the optimal performance capable from the adapter.

Even placing a PCI-X adapter into a 64 bit 66 MHz slot loses performance. Some adapters adjust clock speed depending on the speed of the PCI slot into which they are plugged.

2 The host OS disk and swap disk/partition/file

should be on a high speed drive such as a SCSI drive to minimize the time needed to access the host’s virtual memory.

The more memory a system has, the less time it spends accessing virtual memory (hard drive space).

Check the Operating System

If possible, eliminate swap space and virtual drives which require large amounts of system memory. However, the OS might not allow the elimination of swap space. An OS set to run many kinds of different servers spends much of its CPU cycle on other operations, thus slowing down performance.

Use the ATTO iSCSI performance configuration tool (Windows only)

The ATTO iSCSI performance configuration tool changes the Windows registry parameters for Microsoft iSCSI Initiator and TCP/IP to enhance overall data throughput.

1 From the CD which came with your iPBridge,

copy the Perftune.exe file to your hard drive.

2 Execute the program. 3 Click on Use ATTO Performance Settings.

Settings take effect on the next system reboot.

The following settings are affected:

Check the host system

The faster the host, the faster your transfer times are. The work flow goes only as fast as the slowest connection in the host system, so transferring data from an IDE drive, 100Mb connection, a DLT 4000, a high speed RAID volume across the country, or other applications, slows the system no matter how fast everything else is in the system.

1 Verify that the iSCSI storage adapter or NIC is

connected to the fastest PCI bus connector supported by the adapter or NIC.

ATTO Technology Inc. iPBridge Installation and Operation Manual

FirstBurstLength

MaxBurstLength

ATTO value: 1048576 decimal 00100000 hex

FirstBurstLength

cannot exceed

MaxBurstLength

ATTO value: 1048576 decimal 00100000 hex

Tcp1323Opts

ATTO value: 1

MaxRecvDataSegmentLength

The maximum data segment length, in bytes, that a transmitter (initiator or target) can receive in an iSCSI PDU. The transmitter is required to send PDUs with a data segment that does not exceed

MaxRecvDataSegmentLength

ATTO value: 1048576 decimal 00100000 hex

of the receiver.

MaxTransferLength

The maximum number of bytes that may be transferred by a single SCSI request block (SRB).

ATTO value 1048576 decimal 00100000 hex

SrbTimeoutDelta

The maximum amount of time, in seconds, before an SRB request will time out.

ATTO value 300 decimal 0000012c hex

Reset to factory defaults

A manual reset switch is mounted on the back panel. Insert a tool in the hole in the back panel to activate the switch, wait until the Activity LED on the top of the

Optimize ATTO ExpressNAV in Internet Explorer

1 Go to the browser toolbar and select Tools. 2Select Internet Options. 3 Select the Security tab. 4 Select the Custom Level button. 5 On the menu presented, go to the Microsoft

VM, Java permissions and make sure Disable Java is not selected.

6 Go to the Miscellaneous topic and select

METAREFRESH.

iPBridge becomes green, then cycle power. The iPBridge is reset to factory defaults.

6 Updating Firmware

CAUTIONCAUTION

Several processors control the flow of data in the ATTO iPBridge. The firmware to control these processors can easily be upgraded in the field.

The iPBridge firmware is distributed as an .ima file can be obtained from the ATTO Technology, Inc. web site at

www.attotech.com

your iPBridge.

Before beginning this procedure, ensure that all I/O to the iPBridge has stopped.

During this procedure, do not interrupt the flash process.

Do not power down the host or the iPBridge until the display returns the Ready prompt.

Interrupting the flash process will make your iPBridge inoperable and you must return it to ATTO Technology for repair.

or from the CD included with

Using ATTO ExpressNAV

1 If you have not already, open an ExpressNAV

session. For instructions, refer to

ExpressNAV session on page 25

2 Click on the Firmware page. 3 Click Browse and locate the firmware you

downloaded from the website or from the CD. A sample filename:

c:\bridge_firmware\ibrg0370.ima

4 Click Upload and wait until a success message

is displayed.

5 Click the Restart link. 6 Click on Restart.

Opening an

Using FTP

1 Establish an FTP link to the bridge that is to be

flashed.

2Use the PUT command to download the

firmware file. A sample filename:

c:\bridge_firmware\ibrg0370.ima

3 Once the download is complete, cycle power on

the iPBridge to activate the new firmware.

ATTO Technology Inc. iPBridge Installation and Operation Manual

7 Interface Options

Note

Alternative methods to the ATTO ExpressNAV interface may be used to manage the iPBridge. ATTO ExpressNAV is the recommended interface.

Using ExpressNAV

Each page in the ATTO ExpressNAV interface provides information and/or configuration parameters based on a specific topic.

ATTO ExpressNAV is the recommended management tool for the iPBridge. It is a web-based graphical user interface (GUI) that allows you to manage the iPBridge by clicking choices and commands in traditional GUI fashion or by entering CLI commands directly, as you would in a terminal emulation session, on the

Advanced CLI

page.

Opening an ExpressNAV session

1 Point your browser at the IP address of the

iPBridge. Refer to Discovering the IP address. on page 5.

2The ExpressNAV home page is displayed.

Click Enter.

3 Enter the user name and password values.

The default values are user name: password: insensitive and password is case sensitive. It is best practice to change user names and passwords. Refer to page 13.

Password

. The user name is case

Modify passwords

root

and

The Status page appears.

Each page can be reached through the menu at the side of each page. An image on each page’s header shows each port in the product faceplate. Each port is clickable and takes you to the appropriate page.

If you have completed configuration operations at any time and have clicked viewing, go to the iPBridge to save the settings.

If you have not completed configuration changes, go on to the next command.

Submit

Restart

on the page you are

page and restart the

Optimizing ExpressNAV in Internet Explorer

1 Go to the browser toolbar and select Tools. 2Select Internet Options. 3 Select the Security tab. 4 Select the Custom Level button. 5 On the menu presented, go to the Microsoft

VM, Java permissions and make sure Disable Java is not selected.

6 Go to the Miscellaneous topic and select

METAREFRESH.

Using the serial port

1 Connect a cable from iPBridge RS-232 serial

port to the serial (COM) port on a personal

computer. 2 Turn on the iPBridge. 3 Start a terminal emulation program on the

personal computer, and use it to connect to the

iPBridge. For example, if you are using

HyperTerminal on a computer running a

Windows operating system,

a. Type iPBridge in the New Connection

dialog box.

b. Click OK. c. In the Connect To dialog box, for the

Connect using field select the COM

ATTO Technology Inc. iPBridge Installation and Operation Manual

port number to which your serial cable is connected.

d. Click OK. e. In the COM Properties dialog box

select the following values:

• Bits per second: 115200

• Data Bits: 8

• Parity: None

• Stop Bits: 1

• Flow Control: None

• Terminal type: ASCII

• Echo: off

f. Click OK.

4 After you connect to the iPBridge, start-up

messages are displayed. These messages are

only displayed at start-up. The last line in the

Note

start-up message sequence is Ready. 5 In serial port sessions, there is no prompt on

the line below the word Ready. Begin typing

commands in the blank line where the cursor is

resting. No user name or password is required

for serial port access.

Using Telnet

6 To verify that you have connected successfully,

type help after the Ready prompt and press Enter.

• If a list of all available commands does not appear on the screen, review the steps in this section, check the cable, or contact service personnel until the problem is solved.

If you have difficulty using the serial port, verify that you have the correct settings and that your serial cable is less then two meters in length.

Up to three Telnet sessions can be conducted simultaneously. A serial port session can use the CLI while Telnet sessions are open. Whichever session issues the first issue set commands, while the other sessions can only issue Once a connection is established, refer to

provides an ASCII-based interface

Appendix. 1 Connect to the iPBridge from a computer on the

same Ethernet network.

2 Start a Telnet session.

There is more than one way to connect to the iPBridge using a telnet program.Your telnet program may operate differently than in the following instructions.

set

CLI command can continue to

get

commands or display information.

on page iii of the

CLI

3 At the telnet prompt, issue the open command

where x.x.x.x is the IP address of the iPBridge.

telnet > open x.x.x.x

4 If you have to specify a port type, enter the port

type “telnet” and the terminal type “vt100”.

port type: telnet

terminal type: vt100

5 Enter the default values for the user name,

root, and the password, Password, if you did not set new values in Modify passwords page 13.

Appendix A Cabling

Note

Additional information to physically connect ports to devices and to your SAN.

SCSI cabling

Cables and devices must be chosen to maximize performance and minimize the electrical noise from the high-speed data transfers available with the SCSI protocol. Cabling and termination methods become important considerations for proper performance. SCSI cables and devices are subject to specific length and number limitations to deal with electrical problems that arise at increased operating speeds.

Cable types

Use high-quality cables rated for the type of SCSI transfers required: well-insulated SCSI cables ensure error free communications. Try to keep cable lengths as short as possible to ensure higher signal quality and performance.

Exhibit A-1 Various types of SCSI operate at different speeds and require different bus lengths to support a certain number of devices.

Bus speed

STA terms

Fast SCSI 10 8 3 25 n/a 8 Fast/WIDE SCSI 20 16 3 25 n/a 16 UltraSCSI 20 8 1.5 25 n/a 8 Ultra/WIDE SCSI 40 16 n/a 25 n/a 16 WIDE Ultra SCSI 40 16 1.5 n/a n/a 8 WIDE Ultra SCSI 40 16 3 n/a n/a 4 Ultra2 SCSI 40 8 n/a n/a 12 8 WIDE Ultra2 SCSI 80 16 n/a n/a 12 16 Ultra 160 SCSI 160 16 n/a n/a 12 16 Ultra 320 SCSI 320 16 n/a 12 n/a 16

MB/sec.

max.

Bus

width

bits

Examples

The SCSI specification limits total bus cable length for single-ended SCSI in a non-UltraSCSI environment to 3 meters (combined length of both internal and external cable lengths).

In an UltraSCSI workgroup environment with a 7-drive tower, you are limited to 1.5 meters between the host and the tower, including the cabling for the tower. If the 7-drive tower requires 1 meter of cabling to connect all of its drives, the distance from the tower to the host must be .5 meters.

UltraSCSI is very sensitive to SCSI bus noise, cable distances and the number of devices connected on the SCSI bus. Carefully connect your devices when working with UltraSCSI.

Max. bus lengths in meters

Single-

ended

Differential LVD

Max. device

support

ATTO Technology Inc. iPBridge Installation and Operation Manual

Connecting SCSI devices to the SCSI port

Note

ATTO iPBridge SCSI ports connect SCSI storage devices to the network.

The SCSI port is a bus capable of supporting 15 devices and each bus is capable of 40, 80, 160 or 320 MB/sec. (Ultra, Ultra2 or Ultra320) transfer rates.

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.

1 Connect the cable from the SCSI device to a

VHDCI 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

Ethernet connections

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.

4 Terminate the SCSI bus after the last device.

The iPBridge is terminated internally.

Use at least Cat 5e cable to connect the Ethernet port to your network.

For best performance, all cabling, network interface cards (NICs), host bus adapters (HBAs), and network switches must be Gigabit Ethernet (GbE), and at least Cat 5e certified. Most standard offices use 2-pair wiring which is not compatible. GbE requires 4-pair wiring.

For best performance, support for 9014 byte jumbo frames should be available for all switches and host iSCSI equipment.

Before you begin installing the iPBridge Ethernet port, be sure to check or complete the following:

• If you are managing your iSCSI system across a WAN and your system uses a firewall, be sure that the following ports are open and available:

If you are using the TCP protocol

• telnet (port 23)

• http (port 80)

• ftp (ports 20 and 21)

• iSCSI (port 3260)

• iSNS (port 3705)

If you are using the UDP protocol

• ntp (port 123)

• Be sure your host system(s) is set up and configured.

• Your host system can use any of three different types of cards: a network interface card (NIC), a telnet offload engine card (TOE), or a storage network interface card (SNIC).

• The ATTO driver file from the CD included with your iPBridge or from the ATTO website, your host.

• The switch has been configured to forward UDP broadcast messages.

• The minimum requirement for Windows-based browsers is Internet Explorer 5.5 or Netscape Navigator 6.2. The minimum requirement for Macintosh browsers is Internet Explorer 5.2 or Safari 1.2.

• Ethernet speed defaults to auto; the iPBridge determines the speed and set other parameters based on the speed.

www.attotech.com, is installed on

Appendix B CLI provides an ASCII-based interface

CAUTIONCAUTION

Note

The command line interface (CLI) uses ASCII commands typed while in CLI mode.

Do not use CLI unless you are directed to by an ATTO technician. Changing parameters may cause loss of data and/or disruption to performance and reliability of

the iPBridge. The ExpressNAV interface is the preferred method to operate and manage the iPBridge. Refer to

Interface Options

The command line interface (CLI) is a set of ASCIIbased commands which perform configuration and diagnostic tasks. Refer to

25.

• CLI commands are context sensitive and generally follow a standard format

• [Get|Set] Command [Parameter1|Parameter2]

followed by the return or enter key

• CLI commands are case insensitive: you may type all upper or all lower case or a mixture. Upper and lower case in this manual and the help screen are for clarification only.

• Commands generally have three types of operation: get, set and immediate.

• The get form returns the value of a parameter or setting and is an informational command.

• Responses to get commands are followed by

Ready.

on page 25 for details.

Interface Options

on page

• The set form is an action that changes the value of a parameter or configuration setting. It may require a SaveConfiguration command and a restart of the system before it is implemented. The restart can be accomplished as part of the SaveConfiguration command or by using a separate FirmwareRestart command. A number of set commands may be issued before the SaveConfiguration command.

• Responses to set commands are either an error message or Ready. *. The asterisk indicates you must use a SaveConfiguration command to finalize the set command.

• Set commands which do not require a SaveConfiguration command, defined as immediate commands, are immediately executed.

Using certain CLI commands during normal operation can cause a performance drop. Once command actions are complete, performance should return to normal levels.

Exhibit A-2 Symbols, typefaces and abbreviations used to indicate functions and elements of the command line interface used in this manual.

Symbol Indicates

[ ] Required entry

< > Optional entry

| pick one of

- a range (6 – 9 = 6, 7, 8, 9)

sb SCSI bus number (sb=1)

sl SCSI LUN ID (0 <= sl <=63) st SCSI target ID (0 <= st <= 15)

dp1 Ethernet port used to manage the iPBridge

iii

ATTO Technology Inc. iPBridge Installation and Operation Manual

CLI error messages

CAUTIONCAUTION

The following error messages may be returned by the Command line Interface

ERROR. Invalid Command. Type 'Help' for command list. ERROR. Wrong/Missing Parameters Usage: <usage string>

CLI summary

The following chart summarizes the Command Line Interface commands, their defaults, and an example of how to enter the commands. Commands which have

Do not use CLI unless you are directed to by an ATTO technician. Changing parameters may cause loss of data and/or disruption to performance and reliability of

the iPBridge. The ExpressNAV interface is the preferred method to operate and manage the iPBridge. Refer to

Interface Options

Command Default Example

AccessControl disabled for default node

AccessEntry set accessentry discovery all delete AutoMap automap AutoMapOnBoot enabled set automaponboot disabled AutoMapOnBootDelay 0 set automaponbootdelay 20 BridgeModel get bridgemodel BridgeName iPBridge set bridgename Omega6 ClearEventLog cleareventlog Date set date 03/03/2003 DeleteAllMaps deleteallmaps DPMTU 1514 set dpmtu 9014 DumpConfiguration dumpconfiguration DumpEventLog dumpeventlog EthernetSpeed auto set ethernetspeed dp1 100 Exit exit FirmwareRestart firmwarerestart Help help automap IdentifyBridge disabled set identifyBridge enabled Info info IPAddress 10.0.0.1 get ipaddress dp1 IPDHCP enabled set ipdhcp dp1 disabled IPGateway 0.0.0.0 get ipgateway dp1 IPSubnetMask 255.255.0.0 get ipsubnetmask dp1 iSCSIAlias “ “ set iscsialias diamond iSCSIChap disabled set iscsichap default enabled

on page 25 for details.

enabled for all other nodes

no default values have a blank entry in that column of the table.

set accesscontrol default enabled

Command Default Example

iSCSIChapSecret set iscsichapsecret default in iqn.1991-

05.com.microsoft:barbpc barb123 ISCSIInitiators iscsiinitiators iSCSIMPIO iSCSIPortNumber 3260 get iscsiportnumber dp1 iSCSITarget iscsitarget alpha1 iSCSITargetNameDisplay iscsitargetnamedisplay iSCSIVideoStreaming iSCSIWANIPAddress 0.0.0.0 set isciwanipaddress dp1 172.21.22.1 iSNSLoginControl disabled set isnslogincontrol enabled iSNSServer 0.0.0.0 get isnsserver IsReserved isreserved Password Password set password Ping ping dp1 192.42.155.155 ReadOnlyPassword Password set readonlypassword ReadOnlyUsername user get readonlyusername Reserve reserve RestoreConfiguration restoreconfiguration default RMON see Exhibit A-3

Route route iscsi default 2 scsi 1 1 1 RouteDisplay routedisplay iscsi SaveConfiguration saveconfiguration restart SCSIDomainValidation scsidomainvalidation SCSIInitId 0x07 set scsiinitid 1 12 SCSIPortBusSpeed ultra320 set scsiportbusspeed 1 ultra160 SCSIPortList scsiportlist SCSIPortReset scsiportreset 1 SCSIPortResetOnStartup enabled set scsiportresetonstartup 1 disabled SCSIPortSyncTransfer enabled set scsiportsynctransfer 1 disabled SCSIPortTermination enabled set scsiporttermination 1 enabled SCSIPortWideTransfer enabled set scsiportwidetransfer 1 disabled SCSITargetLUNs 8 set scsitargetluns 1 64 SCSITargets scsitargets 1 SerialNumber get serialnumber SerialPortBaudRate 115200 set serialportbaudrate 19200 SerialPortEcho enabled get serialportecho SNMP enabled set snmp disabled SNMPDumpMIB snmpdumpmib SNMPExtendedTraps disabled set snmpextendedtraps enabled SNMPTrapAddress iPAddress = 0.0.0.0

SNMPTraps disabled set snmptraps enabled SNTP enabled get sntp SNTPServer 192.43.244.18 set sntpserver 129.6.15.28

disabled set

disabled

on page xii

of the Appendix

level = none

set iscsivideostreaming enabled

get RMON ethernethistory

set snmptrapaddress 6 192.42.155.155 all

iscsimpio

enabled

ATTO Technology Inc. iPBridge Installation and Operation Manual

Note

Command Default Example

SpeedWrite disabled set speedwrite scsi all enabled SpeedWriteDefault disabled get speedwritedefault TailEventLog taileventlog Time 00:00:00 set time 03:32:30 TimeZone EST set timezone pst Username root set username barbara VerboseMode enabled set verbosemode disabled VirtualDriveResponse disabled get virtualdriveresponse VLAN set vlan dp1 5 alpha1

Alphabetical CLI command explanations

AccessControl

Controls access on a target node. Access to the target node is keyed to the iSCSI qualified name of listed initiators.

AccessControl cannot be used with iSNS.

Default: disabled on the default node; enabled on all other

nodes

set AccessControl [default | Target Name] [enabled |

disabled]

get AccessControl [default | Target Name]

AccessEntry

Allows the addition or deletion of an initiator entry from the access control list of a target node. The initiator name must be formatted as an iSCSI qualified name and must be between 1 to 223 characters, is case sensitive and cannot be

set AccessEntry [default | Target Name | discovery]

get AccessEntry [default | Target Name | discovery]

all

[Initiator Name <delete> | all [delete]]

AutoMap

Automatically maps all target devices visible to the iPBridge to iSCSI addresses. If you use no arguments, all devices are mapped to the default target. If you specify a target, all devices are mapped to that target. If you specify

each device is mapped to its own auto-named target.

Automap <default | * | target name> SaveConfiguration command required

AutoMapOnBoot

Regulates automatic device detection and mapping (

AutoMap

Default: enabled set AutoMapOnBoot [enabled | disabled] get AutoMapOnBoot

) at startup.

AutoMapOnBootDelay

Specifies the duration of time in seconds that the iPBridge waits before performing an

AutoMapOnBoot

delay to take effect.

Default: 0 set AutoMapOnBootDelay [0 - 256] get AutoMapOnBootDelay

must be enabled for the specified

AutoMapOnBoot

operation.

BridgeModel

Reports specific model and firmware information.

get BridgeModel

BridgeName

Specifies the eight-character ASCII name assigned to the iPBridge to identify individual units. It is not the World Wide Name. Changes take effect immediately.

Default: iPBridge set BridgeName [name] SaveConfiguration Restart command required get BridgeName

ClearEventLog

Clears the contents of the event log. No new entries are recorded until the operation is completed.

ClearEventLog

Date

Regulates the current date for this iPBridge. The date range is 1/1/2000 to 12/31/2099.

set Date [MM] / [DD] / [YYYY] get Date

FirmwareRestart

Resets and reinitializes the iPBridge firmware. Use the

forced

other sessions.

FirmwareRestart <forced>

option to override any CLI reservations held by

DeleteAllMaps

Removes all mapped devices from the map table. Upon the subsequent POST, the default maps are loaded if no maps are present.

DeleteAllMaps SaveConfiguration command required

DPMTU

Controls the MTU, or maximum transmission unit, used by the data port.

default: 1514 set DPMTU [dp1 | all] [1514 | 9014] get DPMTU [dp1 | all]

DumpConfiguration

Displays the iPBridge configuration to the ExpressNlAV

Advanced

session.Results may be truncated in the ExpressNAV readout.

DumpConfiguration

page text box, an available RS-232 or telnet

DumpEventLog

Dumps the entire contents of the event log to the ExpressNlAV RS-232 or telnet session.Results may be truncated in the ExpressNAV readout.

DumpEventLog

Advanced

page text box, an available

EthernetSpeed

Regulates the speed of the iPBridge Ethernet port. If

Auto

is enabled, the Ethernet speed is negotiated. When

hard set, 10 and 100 speeds are half duplex.

Default: auto set EthernetSpeed [dp1 | all] [10 | 100 | 1000 | auto] get EthernetSpeed [dp1 | all]

Exit

Terminates the current CLI session over Telnet. This command has no effect if used during a serial CLI session.

Exit

Help

Issued with no parameters displays a list of available CLI commands. When a CLI command name is specified, a command usage string and command description are displayed.

Help <Command>

IdentifyBridge

Causes both the iPBridge to blink so that you can identify the iPBridge hardware. Disabling this option cancels the blinking.

Default: disabled set IdentifyBridge [enabled | disabled] get IdentifyBridge

Activity

and

SCSI

LEDs on the

Info

Displays version numbers and other product information for key components within the iPBridge.

Info

IPAddress

Controls the current IP address of the Ethernet port on the iPBridge. If reports the current IP address assigned by the network DHCP server, followed by the (DHCP) identifier.

Default: 10.0.0.1 if IPDHCP is disabled set IPAddress [dp1] [xxx.xxx.xxx.xxx] SaveConfiguration Restart command required get IPAddress [dp1 | all]

IPDHCP

is enabled, the get command

IPDHCP

Regulates how the iPBridge acquires its IP address. When disabled, the iPBridge uses the IP address specified by the enabled, the iPBridge gets its IP address from a DHCP server.

Default: enabled set IPDHCP [dp1 | all] [enabled | disabled] SaveConfiguration Restart command required get IPDHCP [dp1 | all]

IPAddress

CLI command.; when

vii

ATTO Technology Inc. iPBridge Installation and Operation Manual

IPGateway

Controls the current default gateways used by any Ethernet port on the iPBridge. If

get

command reports the current IP gateway assigned

by the network DHCP server.

Default: 0.0.0.0 set IPGateway [dp1 | all] [xxx.xxx.xxx.xxx] SaveConfiguration Restart command required get IPGateway [dp1 | all]

IPDHCP

is enabled, the

IPSubnetMask

Controls the current subnet masks used by any Ethernet port on the iPBridge. If command reports the current IP subnet mask assigned by the network DHCP server.

Default: 255.255.0.0 set IPSubnetMask [dp1 | all] [xxx.xxx.xxx.xxx] SaveConfiguration Restart command required get IPSubnetMask [dp1 | all]

IPDHCP

is enabled, the get

iPBridge. The iPBridge can store up to 32 each with a unique Account Name and secret pair. An

out

secret authenticates the iPBridge to the server. There is only one deleted. The by default.

out

secret per target which cannot be

account name

for the out secret is

secrets,

root

iSCSIInitiators

Displays a list of previous and current successfully logged-in iSCSI initiators, including successful initiators recorded in the event log and any initiators manually added since the last reboot. This list is cleared if the event log is cleared.

iSCSIInitiators

iSCSIAlias

Assigns a human-readable name to the iPBridge. Aliases may be 1 to 64 characters in length and may contain spaces if enclosed in quotes.

Default: “ “ set iSCSIAlias [Alias] get iSCSIAlias

iSCSIChap

Regulates whether CHAP (Challenge-Handshake Authentication Protocol) is to be used for the iSCSI protocol. If CHAP is enabled, the target requires the initiator to negotiate CHAP authentication using the CHAP secrets. An initiator may reject this negotiation. If

discovery

during discovery sessions.

Default: disabled set iSCSICHAP [default | Target Name | discovery]

get iSCSICHAP [default | Target Name | discovery]

is specified, the setting applies to CHAP

[enabled | disabled]

iSCSIChapSecret

Specifies the incoming and outgoing passwords for iSCSI CHAP sessions. Secrets are case sensitive, 12 to 32 characters, and cannot contain spaces. secrets must be different for each name. If specified, the setting applies to CHAP during discovery sessions. An

secret authenticates the server to the

and

discovery

out

iSCSIMPIO

The iSCSIMPIO setting helps initiators configured for Multi-Path I/O to recognize when a back-end link has been broken. Enable this setting if using a Multi-Path iSCSI initiator. Disable this setting when Multi-Path I/O is not used, to avoid undesirable target behavior.

Default: disabled set iSCSIMPIO [enabled | disabled} get iSCSIMPIO

iSCSIPortNumber

Specifies the port number which listens for iSCSI connections. Port number must be between 1024 and 65535 with the exception of port 860.

Default: 3260 set iSCSIPortNumber [dp1 | all] [portnumber] get iSCSIPortNumber [dp1 | all]

iSCSITarget

Creates/deletes an iSCSI target. The target name acts as a suffix to the standard iPBridge iSCSI-qualified name. The target name may not exceed 24 characters. A newlycreated target has one LUN, the iPBridge LUN, at LUN 0.

AccessControl iSNSLoginControl

already exists, this command does nothing. The default target cannot be deleted.

iSCSITarget [Target Name] <delete>

is enabled by default, unless

is already enabled. If the target name

iSCSITargetNameDisplay

Displays iSCSI target names.

iSCSITargetNameDisplay

viii

iSCSIVideoStreaming

Note

This command is used to set the iSCSI video streaming mode. Enable video streaming mode if RX FIFO overflows are being reported in the event log. Enabling this mode may signficiantly degrade write performance.

Default: disabled set iSCSIVideoStreaming [enabled | disabled] get iSCSIVideoStreaming

iSCSIWANIPAddress

Sets or displays the IP address reported to an iSCSI initiator located outside the iPBridge LAN. If this iPBridge is behind a NAT router, the address must be set to the external IP address of the router. Setting the address to

0.0.0.0

outside the LAN.

Default: 0.0.0.0 set iSCSIWANIPAddress [dp1] | all] [xxx.xxx.xxx.xxx] get iSCSIWANIPAddress [dp1] | all]

causes the iPBridge to be inaccessible from

iSNSLoginControl

Specifies whether the iPBridge delegates its access control/authorization policy to an iSNS server.

iSNSLoginControl cannot be used with

AccessControl

Default: disabled set iSNSLoginControl [enabled | disabled] get iSNSLoginControl

Password

Specifies the password used for all sessions: NDMP, Telnet, FTP and ExpressNAV. Password is case sensitive, 0 to 32 characters, and cannot contain spaces. An empty password can be configured by pressing the enter key when prompted for the new password and new password confirmation.

Default: Password set Password

Ping

Sends an ICMP echo request to the specified host.If

VLAN

is enabled, the VLAN ID must be provided.

ping [dp1] [xxx.xxx.xxx.xxx] <VLAN ID> <count <size>>

ReadOnlyPassword

Specifies a password which allows only read and no writes. It is case sensitive, 0 to 32 characters, and cannot contain spaces. An empty password can be configured by not specifying one.

Default: Password set ReadOnlyPassword

ReadOnlyUsername

Specifies the user name which allows only read and no writes. It is case insensitive, 1 to 32 characters, and cannot contain spaces.

Default: user set ReadOnlyUsername [username] get ReadOnlyUsername

iSNSServer

Specifies the IP address of a valid iSNS server from which the iPBridge tries iSCSI initiator discovery. Set to

0.0.0.0

enabled, a VLAN ID must be specified for each data port. All iSNS connections have the same VLAN tag.

Default: 0.0.0.0 set iSNSServer [xxx.xxx.xxx.xxx] <[dp1] [VLAN ID]> get iSNSServer

to disable iSNS server lookup.If

VLAN

IsReserved

Displays the reservation status of the current iPBridge.

IsReserved

ATTO Technology Inc. iPBridge Installation and Operation Manual

Reserve

Reports the state of CLI reservation for the current CLI session. If the command reports that Reservations are enabled, then another CLI session has control of parameter modification on the unit.

Reserve

RestoreConfiguration

Issued with the NVRAM settings to their original defaults. The option undoes any changes made to this session since the last save.

RestoreConfiguration [Default | Saved]

defaul

t option, forces the iPBridge

saved

RMON

Note

Displays Ethernet data and allows data collection at specified intervals. Get displays hex.

Valid range for bucketsRequest= 1-180 Valid range for ethernetStat index = 1-3 Valid range for historyControl = 1-6 Valid range for ethernetHistory index = 1-6 Valid range for sampleIdx = 1-2147483647

Valid range for interval = 1-3600 Default: See set rmon [idx] [bucketsRequest] [interval] [valid | invalid] get rmon [ethernetStat | historyControl] <idx> get rmon [ethernetHistory] <idx sampleIdx>

Exhibit A-3

on page xii of the Appendix

Route

Assigns an iSCSI protocol address to a target destination device. If you try to map a new SCSI BTL to the same iSCSI LUN, the new BTL overwrites the previous map. Using the map from its map table. In verbose mode, overwriting a map requires secondary confirmation.

Route [iSCSI] [default | Target Name] [lun] [SCSI <sb st

Delete

identifier instead of

sl> | Bridge | Delete]

SCSI

removes the

RouteDisplay

Displays a combined list of iSCSI to SCSI bus, target, LUN mappings. The optional target name limits the list to maps which have that target name. The optional LUN parameter limits the list further to the map which satisfies a search for the given LUN.

RouteDisplay iSCSI <default <lun> | Target Name <lun>>

SCSIInitID

Specifies the persistent SCSI initiator ID used by the iPBridge on this SCSI bus. All maps coinciding with the user-specified ID are destroyed after this command is issued.

Default: 0x07 set SCSIInitID [sb] [0-15] get SCSIInitID [sb]

SCSIPortBusSpeed

Controls the transfer rate at which the iPBridge attempts to negotiate with its SCSI devices.

Default: ultra320 set SCSIPortBusSpeed [sb] [fast | ultra | ultra2 | ultra160

| ultra320]

get SCSIPortBusSpeed [sb]

SCSIPortList

Lists the status of the SCSI port.

SCSIPortList

SCSIPortReset

Resets the SCSI bus.

SCSIPortReset [sb]

SCSIPortResetOnStartup

Controls whether the SCSI bus is reset each time the iPBridge is powered up.

Default: enabled set SCSIPortResetOnStartup [sb] [enabled | disabled] get SCSIPortResetOnStartup [sb]

SaveConfiguration

Issued with the after saving configuration changes. The option saves changes without restarting.

SaveConfiguration <Restart | NoRestart>

restart

Certain modifications require a system restart.

option, cycles iPBridge power

norestart

SCSIDomainValidation

Runs Domain Validation tests on the SCSI system which may detect problems with SCSI cables, termination or damaged transceivers. Tape drives attached to the iPBridge should be loaded with media. The media is not overwritten. Disable running this test and reboot the iPBridge after running the test.

SCSIDomainValidation

VirtualDriveResponse

before

SCSIPortSyncTransfer

Controls the iPBridge attempts to negotiate synchronous SCSI transfers with devices on the specified bus.

Default: enabled set SCSIPortSyncTransfer [sb] [enabled | disabled] get SCSIPortSyncTransfer [sb]

SCSIPortTermination

Configures the SCSI internal termination of the specified SCSI port. Enabling termination allows the iPBridge to act as a terminator at the end of a SCSI chain.

Default: enabled set SCSIPortTermination [sb] [enabled | disabled] get SCSIPortTermination [sb]

SCSIPortWideTransfer

Controls the iPBridge attempts to negotiate wide SCSI transfers with devices on the specified bus.

Default: enabled set SCSIPortWideTransfer [sb] [enabled | disabled] get SCSIPortWideTransfer [sb]

SNMPDumpMIB

Displays the contents of the ATTO iPBridge private SNMP MIB to the current CLI session. For further assistance with SNMP, consult your network administrator.

SNMPDumpMIB

SCSITargetLUNs

Controls the maximum number of SCSI LUNs per target the iPBridge queries during a SCSI bus scan.

Default: 8 set SCSITargetLUNs [sb] [ 8 | 64] get SCSITargetLUNs [sb]

SCSITargets

Lists the physical devices that are connected and running on the specified SCSI port.

SCSITargets [sb]

SerialNumber

Displays the serial number of the iPBridge. The serial number is a 13 character field. The first seven alphanumeric characters are an abbreviation representing the product name. The remaining six digits are the individual iPBridge number.

get SerialNumber

SerialPortBaudRate

Configures the baud rate for the iPBridge RS-232 serial port. The number of data bits per character is fixed at 8 with no parity.

Default: 115200 set SerialPortBaudRate [2400 | 9600 | 19200 | 38400 |

57600 | 115200] SaveConfiguration Restart command required get SerialPortBaudRate

SerialPortEcho

Controls if the iPBridge echoes characters on its RS-232 port. When enabled, all non-control character keyboard input is output to the display.

Default: enabled set SerialPortEcho [enabled | disabled] get SerialPortEcho

SNMP

Controls whether or not SNMP functions on the iPBridge.

Default: enabled set SNMP [enabled | disabled] get SNMP

SNMPExtendedTraps

Regulates Extended (i.e., Device Transition and Device Error) SNMP trap functionality.

Default: disabled set SNMPExtendedTraps [enabled | disabled] get SNMPExtendedTraps

SNMPTrapAddress

Regulates or displays IP Trap Addresses and Trap Levels.

Index

is a value from 1 to 6. The IP address must be in the same subnet as the iPBridge, and is the host that wishes to receive traps. The supported severity levels required to trigger a trap are: Warning, Critical.

Default IP address: 0.0.0.0 Default level: none set SNMPTrapAddress [index] [xxx.xxx.xxx.xxx] [None |

All | Warning |Critical]

get SNMPTrapAddress [index]

None, All,

SNMPTraps

Regulates SNMP traps.If port, a VLAN ID for that port must be specified. All SNMP traps are sent with the same VLAN tag.

Default: disabled set SNMPTraps [enabled |disabled] <[dp1] [VLAN ID]> get SNMPTraps

VLAN

is enabled on a data

SNTP

Controls whether SNTP time server is used.If enabled on a data port, a VLAN ID for that port must be specified.

Default: enabled set SNTP [enabled | disabled] <[dp1] [VLAN ID]> SaveConfiguration Restart command required get SNTP

VLAN

SNTPServer

Controls or displays the main IP address the client uses to retrieve the SNTP time.

Default: 192.43.244.18 set SNTPServer [xxx.xxx.xxx.xxx] SaveConfiguration Restart command required get SNTPServer

ATTO Technology Inc. iPBridge Installation and Operation Manual

SpeedWrite

Improves the performance of SCSI WRITE commands to target devices attached to the iPBridge. Specify the Speed Write state for each currently mapped device on the iPBridge, or to get a list of the Speed Write states of all currently mapped devices on the iPBridge.

Default: disabled set SpeedWrite SCSI [ sb st sl | all] [enabled | disabled] get SpeedWrite SCSI [ sb st sl | all]

all

to set

SpeedWriteDefault

Specifies the default device mappings created manually or using an operation.

Default: disabled set SpeedWriteDefault [enabled | disabled] get SpeedWriteDefault

SpeedWrite

state applied to new

AutoMap

TailEventLog

Displays new events to the terminal. Type press

ENTER

TailEventLog

to exit tail mode.

quit

then

Time

Controls or displays the current time as clocked by the iPBridge in 24 hour format.

set Time [HH: MM: SS] get Time

TimeZone

Controls or displays the time zone or an offset from GMT.

Default: EST set TimeZone [[EST | CST | MST | PST] | [[+| -]

[HH]:[MM]]] SaveConfiguration command required get TimeZone

Username

Specifies the user name for all sessions. It is case insensitive, 1 to 32 characters, and cannot contain spaces.

Default: root set Username [username] SaveConfiguration command required get Username

VerboseMode

Controls the level of detail in CLI command response output for the current CLI session.

Default: enabled set VerboseMode [enabled | disabled] get VerboseMode

Help

output and

VirtualDriveResponse

Provides proxy responses to SCSI INQUIRY and TEST UNIT READY commands if a SCSI device selection times out or has a busy event. Host systems can assign devices consistently regardless of the device’s state during the execution of the commands.

Default: disabled set VirtualDriveResponse [enabled | disabled] get VirtualDriveResponse

VLAN

Sets Virtual LAN ID values for each Ethernet data port. Up to 8 IDs can be stored per port. Incoming packets are filtered if their tags are not on the list of VLAN IDs for that data port. Outgoing packets are tagged to match their connection. Each VLAN ID is assigned a VLAN name of up to 64 characters. If no VLAN IDs exist for a data port, VLAN is disabled for that data port.

set VLAN [dp1] [[VLAN ID] [VLAN Name] <delete> | [all]

[delete]]

get VLAN [dp1]

Exhibit A-3 Default history Control table (buckets and interval in hexadecimal) for the RMON CLI command.

Idx DataSrc BktReq BktGrant Interval Owner Status ==================================================================== 001 43.6.1.2.1.2.2.1.1.1 00000032 00000032 0000001e monitor 00000004 002 43.6.1.2.1.2.2.1.1.1 00000032 00000032 00000708 monitor 00000004 003 43.6.1.2.1.2.2.1.1.2 00000032 00000032 0000001e monitor 00000004 004 43.6.1.2.1.2.2.1.1.2 00000032 00000032 00000708 monitor 00000004 005 43.6.1.2.1.2.2.1.1.3 00000032 00000032 0000001e monitor 00000004 006 43.6.1.2.1.2.2.1.1.3 00000032 00000032 00000708 monitor 00000004

xii

Appendix C Safety standards and compliances

WARNING

The equipment described in this manual generates and uses radio frequency energy. If this equipment is not used in strict accordance with the manufacturer's instruction, it can and may cause interference with radio and television reception. See the Technical Specification sheet for a full list of certifications.

Risk of explosion if battery is removed and/or replaced by an incorrect type. Dispose of used batteries in accordance with your local environmental regulations.

No operator serviceable components inside the iPBridge 1550D.

Do not remove cover of the iPBridge 1550D. Refer servicing to qualified personnel.

FCC Standards: Radio and Television Interference

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause

interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC rules, which are designed to provide a reasonable protection against such interference when operating in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.

If this equipment does cause interference to radio and television reception, which can be determined by turning the equipment off and on, try to correct the interference by one or more of the following measures

• Move the receiving antenna.

• Relocate the bridge with respect to the receiver,

or move the bridge away from the receiver.

• Plug the computer into a different outlet so the

computer and receiver are on different branch

circuits. The booklet How to Identify and Resolve Radio/TV Interference Problems prepared by the Federal Com- munications Commission is a helpful guide. It is available from the US Government printing office, Washington, DC 20402, Stock No. 004-000-00345-4.

• If necessary, consult an ATTO authorized dealer, ATTO Technical Support Staff, or an experienced radio/television technician for additional suggestions.

Application of Council Directive: 89/336/EEC Standard(s) to which conformity is declared: EN55022, EN50082-1 This Declaration will only be valid when this product is used in conjunction with other CE approved devices and

when the entire system is tested to the applicable CE standards and found to be compliant.

xiii

ATTO Technology Inc. iPBridge Installation and Operation Manual

Canadian Standards

This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

European Standards: Declaration of Conformity

This following statement applies to the ATTO iPBridge. This device has been tested in the basic operating configuration and found to be compliant with

the following European Union standards

The ATTO iPBridge 1550 complies with Directive 2002/95/EC on the Restriction of the Use of Hazardous Substances in Electrical and Electronic Equipment (RoHS).

xiv

ATTO Technology 1550D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 ATTO iPBridge Provides Storage Options

Features

Exhibit 1.0-1 Possible storage solutions using the iPBridge.

1.1 Physical Attributes

Dimensions

Environment

Power

SCSI port

iSCSI port

Serial port

Reset switch

LED indicators

Exhibit 1.1-1 iPBridge 1550D back panel

2 Installation

Unpacking the packing box; verifying contents

Installing the iPBridge

Installing Windows drivers

Discovering the IP address.

Installing MS iSCSI Initiator for Windows

Installing iSCSI Initiator for Mac OS X

Setting up Internet Explorer

Beginning initial configuration

3 Configure the iPBridge

Preliminary steps

ExpressWizard

3.1 Target Management

Default target node

Target names

Automatically configure a single target

Map devices manually

Multiple target nodes

Automatically configure multiple targets

Manually configure multiple target nodes

Exhibit 3.1-1 Target node configurations.

3.2 iSCSI Configuration

iSNSServer

SpeedWrite

CHAP commands

iSCSI Target

Ethernet

iSCSI Port Number

iSCSI

iSCSI Alias

iSNS Login Control

iSCSI CHAP

iSCSI Chap Secret

3.3 Modify System Values

Preliminary steps

Modify passwords

Set up a VLAN: Virtual Local Area Network

Enhance performance

iSCSI performance configuration tool (Windows only)

FirstBurstLength

MaxBurstLength

MaxRecvDataSegmentLength

MaxTransferLength

SrbTimeoutDelta

Tcp1323Opts

4 Remote System Monitoring

SNMP

5 Troubleshooting

Inside out method

Check basic diagnostic tools

Check the host event log

Check the iPBridge event and trace logs

Visually inspect LEDs

Check for problems on attached devices

Check host versions

Check iPBridge product versions

Check components

Check SCSI devices

Check the iPBridge SCSI port

Check the serial port

Check the iPBridge internal configuration

Check the iPBridge Ethernet/iSCSI port

Check the LAN/WAN