Gateway 850 User manual

user'sguide

your Gateway 850

SCSI storage enclosure

Installing

Configuring

i

Contents

1 About the Gateway 850 SCSI Storage Enclosure . . . . . . . . . . . . . . . . 1

Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Front bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Converting to a dual-backplane device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Cooling fan module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SAF-TE Disk I/O card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

RS-232 ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Control and monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Status indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Audible alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2 Setup and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Enclosure detailed installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Installing the storage enclosure in a rack cabinet . . . . . . . . . . . . . . . . . . . . . . 15

Enclosure configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Host cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Turning on the enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Turning off the enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3 Monitoring Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Enclosure component monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Status indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Audible alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

One-touch annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Enclosure monitoring using VT-100 emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Uploading SAF-TE controller card firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

General enclosure problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Common SCSI bus problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

ii

Terminal emulator and COM port problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Host SCSI channel problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Device SCSI channel problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Problems during bootup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Common problems and interpreting the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Warning and error events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Disk errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Disk channel errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

5 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Removing the front bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Replacing the cooling fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Replacing a power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Replacing a drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Replacing the SAF-TE Disk I/O card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

A Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

B Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

SAF-TE RS-232 serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Null-modem cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

C Safety, Regulatory, and Legal Information. . . . . . . . . . . . . . . . . . . . . . .77

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

1

About the

Gateway 850

SCSI Storage

Enclosure

Read this chapter to learn about:

■ Enclosure features

■ Components and connections

■ Control and monitoring functions

2

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

Welcome

Congratulations on the purchase of your new Gateway 850 SCSI Storage

Enclosure. The enclosure is the new generation of fully fault-tolerant Ultra320

SCSI storage solutions available in a unique 2U design that fits in a compact

space, ideally suited for today’s data centers. The enclosure supports as many

as twelve 1-inch high Ultra320 drives.

3

Features

www.gateway.com

Features

The enclosure is designed for mission-critical applications requiring the highest

performance with uncompromised data reliability, such as mid-range and

enterprise server storage. It maintains exceptionally high throughput and is

ideally suited for high bandwidth data-intensive applications, such as electronic

commerce, digital video, CAD, seismic research, digital pre-press, and 3-D

imaging.

The following are major features:

■ Ultra320 storage system enclosure.

■ Supports as many as 12 drives

■ Designed to fit EIA 310D standard 19-inch rack enclosures.

■ Sequential data transfers from disk arrays at over 320 MB/sec sustained.

■ Operating system-independent—no special software or drivers required.

■ Ultra320 low-voltage differential single (LVDS) host ports.

■ As many as two 320 MB/sec SCSI disk channels

■ All SCSI channels are backward compatible Ultra2 LVD and

Ultra/Fast/Asynchronous single-ended SCSI modes.

■ All SCSI channels support SPI-3 Cyclic Redundancy Check (CRC) and

Domain Validation.

■ Continuous runtime diagnostics for warnings and automatic shutdown for

out-of-spec temperatures and voltages, battery failures, and internal errors.

4

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

Front

Back

RESET ALARM

Drive Status LEDs

(left column of LEDs)

Power On LED

Channel

Status LED

Power

Supply

Status LED

Fan Status LED

Alarm Reset Button

Drive Activity LEDs

(right column of LEDs)

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SAFTE Disk I/O Card

SAF-TE Service & VT-100 Ports

Controller 2

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5

Components

www.gateway.com

Components

Front bezel

The front bezel houses the status LEDs, drive LEDs, and alarm reset button.

Remove the bezel to access the drives. You can remove and install the bezel

without interrupting current system activities.

Embedded within the front bezel is the electronic package that provides the

communication with the microprocessor. The microprocessor communicates

with SAF-TE processors (SEP) and the drives in the enclosure. It passes

information to the front bezel Channel Mode and drive status LEDs. For more

information on monitoring functions, see “Control and monitoring” on

page 11.

Power is supplied to the front bezel through an edge connector. A control circuit

monitors the bezel for a correct connection. When the bezel is correctly

installed and the storage enclosure is turned on, the bezel is immediately

powered.

For information about removing the bezel, see “Removing the front bezel” on

page 62.

Reset Alarm

Drive LEDs

Alarm Reset Button

Status LEDs

6

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

Converting to a dual-backplane device

You can convert the enclosure to a dual-backplane device by removing the

single bus module.

To convert the enclosure into a dual-backplane device:

1 Turn off the enclosure. For instructions, see “Turning off the enclosure”

on page 29.

2 Remove the controller cover plate.

3 Remove the single bus module from the Controller 1 slot.

4 Reinstall the cover plate.

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Cover Plate

Single-Bus

Module

7

Components

www.gateway.com

AC power

The storage enclosure’s power system consists of two 350-watt, hot-swappable

power supplies, each with independent AC power and cooling fans. This power

system provides the enclosure with “N+1” redundant power. Each power supply

has auto-switching circuitry for use with either 110V or 220V AC systems.

To turn on the enclosure, press each of the two power supply On/Off switches

to the “on” position.

A Power LED on each power supply turns on to indicate that enclosure is turned

on. The front bezel power LED turns green when both power supplies are on

and operating normally. If only one power supply is operational, the front bezel

power LED turns orange.

The power supplies also have a general Fault LED. If the power supply is

installed and the power supply is not receiving power or if the power supply

cooling fan fails, the general power supply Fault LED turns orange and an alarm

sounds.

Each power supply has an AC power cord module. The modules have a power

cord clip incorporated into the design to secure the power cord after it has been

correctly inserted. The clip prevents accidental power cord disconnections.

Blank Plate

8

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

Cooling fan module

The cooling system consists of two high-performance (80-CFM) cooling fans

mounted in a single fan module which slides into an open bay at the rear of

the enclosure. The design of the fan module provides an easy user-replaceable

component in a live environment without interruption of service.

If any one fan should fail, cooling redundancy and efficiency are degraded. If

a fan fails, the SAF-TE processor communicates status of the cooling fans, which

turns on the Fan Status LED and an alarm. The SAF-TE processor will also

provide the notification data to any monitoring software.

The enclosure temperature sensors are monitored for out-of-tolerance

conditions of the established temperature threshold value of 60°C (140°F). If

a threshold value is exceeded, the Fan Status LED will begin flashing orange.

The fan module can be replaced during normal operation without turning off

the enclosure or interrupting normal system operations.

Warning Do not operate the enclosure for extended periods of time

(greater than 5 minutes) with the cooling fan module

removed. No enclosure cooling is available while the fans

are removed.

9

Components

www.gateway.com

SAF-TE Disk I/O card

The SAF-TE Disk I/O card provides the built-in environmental and system status

monitoring, as well as host connectivity to the drives. It also houses the

switches for setting SCSI IDs, VT-100 communication protocols, and drive

spinup options.

This card contains two SAF-TE processors (SEPs) that continuously monitor the

enclosure for temperature status, fan status, power supply status, and SCSI

channel status. The SEPs are responsible for reporting environmental conditions

and system status to the front bezel LEDs, audible alarms, external monitoring

software, and third-party monitoring software. Using the SAF-TE specification

protocol version 1.0, the SEPs communicate through the SCSI bus to report on

enclosure status and communicate information about the associated host

system.

At power up, the SAF-TE processors read the SCSI switch settings and configure

the system for the appropriate addresses. They then execute firmware from the

on-board flash memory and perform a self-test. The firmware is flash

upgradeable using the SAF-TE RS-232 Service port located below the I/O card

slots at the rear of the enclosure. The firmware also contains the necessary

functions for enclosure management.

Specific switch settings are discussed later in “Setup and Installation” on

page 13.

Warning The SAF-TE Disk I/O card is not hot swappable. You must

turn off the enclosure prior to removing or replacing this

card.

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10

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

The SAF-TE Disk I/O card has two 68-pin VHD/CI SCSI connectors which

provide the connectivity from the host computer(s) to the drives. The

connectors are labeled “Channel 1” and “Channel 2.”

In JBOD single-bus mode, the Channel 1 connector provides SCSI bus access

to all the drive slots, 1 through 12, and the Channel 2 connector provides the

automatic SCSI bus termination.

In JBOD Dual-Bus mode, the Channel 1 connector provides SCSI bus access to

the drives in slots 7 through 12, and the Channel 2 connector provides access

to the drives in slots 1 through 6. Termination is automatic and provided

internally on the drive mid-plane circuit board.

RS-232 ports

The SAF-TE Service RS-232 serial port is located below the I/O card slots, and

between the two Control ports. The SAF-TE Service port provides an RS-232

serial interface to the SAF-TE Disk I/O card allowing firmware uploads and

maintenance/service monitoring of the SEPs.

CTRL 1

CTRL 2

SAF-TE

SAF-TE Service Port

11

Control and monitoring

www.gateway.com

Control and monitoring

The SAF-TE processors provide monitoring information for the enclosure

environmental conditions such as enclosure temperature, cooling fan status,

power supply status, and SCSI bus status. This information is reported to the

monitoring system to provide the user with LED and audible alarm

notifications. This environmentally monitored information is also

communicated to monitoring software. Refer to “Monitoring Systems” on

page 31 for more complete details.

The enclosure incorporates a “One-Touch Annunciation” which provides an

LED readout of the current switch configuration, host interface type, bus

configuration, communication BAUD setting, drive spin-up settings, and

controller status. For more information, see “One-touch annunciation” on

page 35.

Status indicator LEDs

The Status Indicator LEDs are grouped on the right side of the front bezel

directly above the Alarm Reset button.

Power LED

When the Power LED is green, it indicates that the enclosure is turned on.

Reset Alarm

Drive Status LEDs

(left column of LEDs)

Channel Status LED

Power

Supply

Status LED

Fan Status LED

Alarm Reset Button

Drive Activity LEDs

(right column of LEDs)

12

Chapter 1: About the Gateway 850 SCSI Storage Enclosure

www.gateway.com

Channel Status LED

The Channel Status LED is green at all times.

Power Supply Status LED

The Power Supply Status LED indicates the condition of the power supplies.

The LED is a steady green when both power supplies are functioning normally

and will change to orange if one power supply fails or is turned off.

A failed power supply can be identified by the orange “Fault” LED located on

the power supply.

Fan Status LED

The Fan Status LED indicates the condition of the cooling fans. The LED is green

when both fans are functioning normally. The LED is orange if any of the fans

fail.

Drive LEDs

The Drive LEDs are located on the left side of the front bezel between the

ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs.

The Drive LEDs are grouped in pairs and are in the general location of the drive

slot. There are 12 Drive Status and Drive Activity LEDs, one group or pair for

each drive. For detailed information, see “Drive LEDs” on page 33.

Audible alarm

An audible alarm sounds when any of the enclosure’s components change to

an abnormal state. To silence the alarm, press the Alarm Reset button located

on the front bezel. The corresponding alarm’s LED will remain illuminated until

the condition returns to a normal state.

2

13

Setup and

Installation

Overview

This chapter describes the procedures to install and set up

the enclosure. Each section will step you through the

hardware installation, cabling and topology

configurations, and upgrades.

It is important to thoroughly review this information and

perform the procedures in the order in which they are

presented. This will ensure a smooth and trouble-free

installation.

14

Chapter 2: Setup and Installation

www.gateway.com

The installation is divided into three sections:

■ The first section describes installing the enclosure into the rack cabinet.

See “Enclosure detailed installation” on page 15.

■ The second section describes setting the SAF-TE Disk I/O card switches and

the enclosure-to-enclosure cabling. The SAF-TE card switch settings

determine the SCSI IDs, RAID Addressing, and disk spin-up options. See

“Enclosure configuration” on page 21.

■ The third section describes the cabling of the enclosure to the host

system(s). This enclosure is very flexible and there are several possible

configurations. See “Host cabling” on page 28.

15

Enclosure detailed installation

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Enclosure detailed installation

This first section describes preparing and installing the enclosure into the rack

cabinet.

After installing the hardware components, go to “Enclosure configuration” on

page 21 and set the SAF-TE Disk I/O card switches and enclosure cabling for

your drive configuration.

Installing the storage enclosure in a rack

cabinet

To install the storage enclosure in a rack cabinet:

1 Select an appropriate location within your rack cabinet. If you are installing

more than one enclosure, you should consider the location of the

enclosures in relationship to each other

to make sure that the cables will

easily reach between enclosures.

Make sure that the selected location in the rack cabinet has adequate air

flow for the front-to-side and side-to-side areas.

2 Remove the enclosure from its shipping carton and inspect for obvious

damage. Place the enclosure on a flat surface.

Warning The power supplies and drives should be removed prior

to installing the enclosure into the rack cabinet. The

enclosure chassis could be damaged during installation

due to the added weight of the power supplies and drives.

16

Chapter 2: Setup and Installation

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3 Rotate the front bezel thumbscrews counter-clockwise one-quarter turn to

unlock the bezel.

4 Using both hands, grasp and pull the front bezel away from the enclosure.

Store the bezel in a location so that it will not be damaged.

5 Remove each of the power supplies by grasping each handle and pressing

in on the release latch with your thumb as you pull the power supply away

from the enclosure.

6 Remove each of the drives.

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Gateway 850 User manual

Gateway 850 User manual

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