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Sun Storage J4500 Array Service Manual
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Preface

1.  Introduction to the Sun Storage J4500 Array

1.1 Features

1.2 Exterior Features, Controls, and Indicators

1.2.1 Front Panel

1.2.2 Back Panel

1.2.3 Sun Storage J4500 Array Internal Components

1.3 Accessory Kit

2.  Configuring and Powering On the Sun Storage J4500 Array

2.1 Configuration and Cabling

2.1.1 Terms and Definitions

2.1.2 Configuration Rules

2.1.3 Cabling the SAS Connectors

2.1.4 Example Configurations

2.2 Powering On and Off the Array

To Power On the Array

To Place the Array Into Standby Power Mode

To Power Off the Array

2.2.1 AC Power Failure Auto-Recovery

3.  Maintaining the Sun Storage J4500 Array

3.1 Options and Replaceable Components

3.2 Tools and Supplies Needed

3.3 Powering Off the Array and Removing It From the Rack

To Power Off the Array

To Remove the Array Enclosure From the Rack

3.4 Removing and Replacing the Hard Disk Drive Access Cover

To Remove the Hard Disk Drive Access Cover

To Replace the Hard Disk Drive Access Cover

3.5 Internal Component Locations

3.6 Replacing Components

To Replace a Fan Module

To Replace the Front Indicator Board

To Replace a Hard Disk Drive

To Replace the Power Distribution Board

To Replace a Power Supply

To Replace the System Controller Module

To Replace the Array Chassis

3.7 Upgrading Enclosure Firmware

3.7.1 Ensure Both SAS Fabrics are Upgraded to the Same Firmware Revision Level

4.  Troubleshooting

4.1 External Status LEDs

4.2 Internal Disk Drive and Fan LEDs

4.3 Diagnostic and Management Tools

4.3.1 SunVTS

4.3.2 Common Array Manager (CAM)

4.4 Troubleshooting Problems with the Array

4.4.1 Initial Start-up

4.4.2 Check the Event and Performance Logs

4.4.3 Using the Array Management Software to Monitor Enclosure Health

4.4.4 Array Link Problems

4.4.5 Disk Problems

4.4.6 Array Environment Problems

4.4.7 Power Problems

4.5 Resetting the Enclosure Hardware

To Reset the Enclosure Hardware Using the Reset Button

4.6 Clearing the Enclosure Zoning Password

To Clear the Enclosure Zoning Password

A.  System Specifications

B.  Connector Pinouts

B.1 Mini-SAS Connectors

B.2 I/O-to-Disk Backplane Connectors

B.2.1 Power Blade Connector

B.2.2 High-Speed Dock Connectors

B.3 Power Supply Connector

B.4 Disk Backplane-to-Front Indicator Connector

B.5 Backplane-to-Disk-Backplane Connector

B.6 Fan Tray Connectors

B.7 Fan Connectors

Index

1.1 Features

The Sun Storage J4500 array is a mid-level, modular, rack-optimized, expansion storage solution in the Sun storage product family. It is designed for deployment into commercial server markets in a slide-mounted, horizontally biased enclosure for rack cabinet installations, primarily in datacenter locations.

Summary of Features summarizes the features of the Sun Storage J4500 array.

Table 1-1 Summary of Features

Feature or Component
Description
Hard disks
Up to forty-eight 3.5-inch SATA II drives, of 500 GB, 750 GB or 1 TB capacity each (48 TB total system capacity), 3 Gbit/sec data rates, hot-pluggable.
System Controller
The System Controller contains four LSI SAS x36 expanders. These expanders provide a redundant set of independent SAS fabrics (two expanders per fabric), enabling two paths to the J4500 array's 48 drives.

Four external mini-SAS x4 (by four) connector ports, each connector contains four PHYs (physical links) enabling eight SAS lanes per fabric to connect to storage. Each x4 connector port links to all 48 disks.

The expander firmware is upgradable (see Chapter 3, Maintaining the Sun Storage J4500 Array). The System Controller module is hot-pluggable.
RAID options
RAID support is specific to the supported host bus adapter.
Data rates
The SAS interface allows 1.5 and 3 Gbit/sec SAS and SATA with auto-negotiation.
Bandwidth
Up to 48 Gb/sec total bandwidth:2 (x4-wide) SAS host/uplink ports (24 Gb/sec bandwidth)

2 (x4-wide) SAS expansion port (24 Gb/sec bandwidth)
Protocols
Supports SSP, STP, SMP as defined in the Serial Attached SCSI (SAS) v1.0 and v1.1 specifications.
Management
Enclosure management is provided through SMP and SES-2.
I/O
Four external mini-SAS x4 connector ports (a two-port primary path and a redundant two-port secondary path).
Power
Two 1500 W DC max output power supplies, two bays, 1+1 redundancy (array continues to operate with one power supply), hot-swappable.

110–220 VAC input voltage

47-63 Hz input frequency

1100 W DC max power consumption
Cooling
Five variable-speed fan modules (two per module), hot-swappable.

Additionally, each power supply has its own fan.

Cooling is front-to-back forced air.
SAS cables
Two mini-SAS x4 SFF-8088 cables are supplied with the array.
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