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Sun Storage J4500 Array System Overview
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Document Information

Preface

1.  Hardware Overview

Overview of the Sun Storage J4500 Array

Features

Exterior Features, Controls, and Indicators

Front Panel

Back Panel

Supported Server Platforms

Supported Host Bus Adapters

Installation Overview

Sun Storage J4500 Array Rack Slide Rails

Compatible Racks

Tools and Staff Required

Configuration and Cabling

Term Definitions

Configuration Rules

Cabling the SAS Connectors

Example Configurations

Powering On and Off the Array

To Power On the Array

To Place the Array Into Standby Power Mode

To Power Off the Array

AC Power Failure Auto-Recovery

2.  Software Overview

Operating System Support

Updated Driver Files Required for Windows

Clustering Software Not Supported With the J4500 Array

Array Management Overview

Management Term Definitions

About Enclosure Management

Array Management Options

Management Options When Using the StorageTek SAS RAID External HBA (Adaptec-Based)

Management Options When Using the StorageTek SAS External HBA (LSI-Based)

Using the Common Array Manager Software

Viewing Sun Storage J4500 Array Information With CAM

Problem Resolution

Zoning Array Storage Resources Using CAM

Upgrading Sun Storage J4500 Array Firmware Using CAM

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

Obtaining CAM Software

Using the StorageTek RAID Manager Software

Viewing Sun Storage J4500 Array Information With the Sun StorageTek RAID Manager

Multiple Array Identification

3.  Adding and Zoning Array Storage Using CAM

Overview of Zoning

System Requirements

Access Configuration (Zoning) Guidelines

Adding (Cascading) a J4500 Array to An Existing Zoned J4500 Array

To Prepare an Existing Array Prior to Cascading Additional Storage

To Prepare a New J4500 Array for Cascading

To Cascade Arrays Using CAM

Configuring Multiple Host Access for a J4500 Array

To Configure Multiple Host Access for a J4500 Array

4.  SAS Multipathing

System Requirements

Supported Sun Storage J4500 Array Firmware and Common Array Manager (CAM) Software

Supported HBAs

Supported Operating Systems and Drivers

Supported Drives for Multipath

Multipathing Configuration Guidelines

Configuration Examples

Multipathing With One Host, One HBA and One Array

Multipathing With One Host, One HBA and Cascaded Arrays

Multipathing With One Host, Two HBAs and Cascaded Arrays

Multipathing With Two Hosts, Four HBAs and Cascaded Arrays

Multipathing With Two Hosts, Multiple HBAs and Cascaded Arrays

Enabling and Disabling Multipathing in the Solaris Operating System

About Multipathing

stmsboot Options

stmsboot Conditions

To Enable Multipathing on LSI-Based Multipath-Capable Controllers

To Disable Multipathing on LSI-Based Multipath-Capable Controllers

Configuring Multipathing on Selected Ports

Enabling and Disabling Multipathing in the Linux Operating System

About Multipathing

To Enable Multipathing in Linux

To Disable Multipathing in Linux

Enabling and Disabling Multipathing in the Windows Operating System

About Multipathing

How a Failover is Handled by Windows

To Enable Multipathing in Windows Server 2008

To Disable Multipathing in Windows Server 2008

5.  Troubleshooting

CAM Service Advisor

To Access Service Advisor Procedures

Taking Electrostatic Discharge (ESD) Precautions

To Reserve the Array for Maintenance

To Release the Array After Maintenance

Understanding the CAM Event Log

Troubleshooting Problems with the Array

Initial Start-up

Check the Event and Performance Logs

Using the Array Management Software to Monitor Enclosure Health

Array Link Problems

Disks Problems

Array Environment Problems

Power Problems

Resetting the Enclosure Hardware

To Reset the Enclosure Hardware Using the Reset Button

Clearing the Enclosure Zoning Password

To Clear the Enclosure Zoning Password

Index

Using the StorageTek RAID Manager Software

The Sun StorageTek RAID Manager is included with the StorageTek SAS RAID External HBA (SG-XPCIESAS-R-EXT-Z, Adaptec-based RAID controller). It provides a GUI and a command line interface. In addition to RAID volume management, it supports SES-2 component monitoring and status, email alerts, FRU identification, fault isolation and HBA firmware upgrade.

You can compliment enclosure management with the additional capabilities available using CAM, such as array firmware upgrade, enclosure reset, the Service Advisor wizard and Sun Auto Service Request for problem resolution (see Using the Common Array Manager Software).

Information about using the Sun StorageTek RAID Manager is available with the HBA documentation on the Sun documentation web site:

http://docs.sun.com/app/docs/prod/j4500.array

Viewing Sun Storage J4500 Array Information With the Sun StorageTek RAID Manager

After connecting your J4500 array, configuring RAID volumes and installing the StorageTek RAID Manager software, starting the software will display the main window, shown in Sun StorageTek RAID Manager Main Window. The main window depicts the array enclosure topology as interpreted by the HBA and shows an HBA with two daisy-chained J4500 arrays connected to it.

Figure 2-2 Sun StorageTek RAID Manager Main Window

image:This graphic shows the StorageTek RAID Manager main window.

Figure Legend

1 Enclosure identifier and SAS ID (unique WWN number found on the back of the enclosure)

2 Enclosure disks (48)

3 Enclosure management devices (represent the outside and inside SAS expanders)

4 Enclosure event viewer

The J4500 array is represented as an enclosure with 48 disks. Disks are listed in the StorageTek RAID Manager main window from left to right and top to bottom, starting with the lowest number found in each enclosure.

The enclosure management device icons represent the two SAS expanders linking to all 48 disks (refer to The Main Components of the Sun Storage J4500 Array):

In addition to disk management, you can use the StorageTek RAID Manager software to obtain status information about the enclosure. This includes information on voltages, temperature, and the status of enclosure power supplies and fans. In the J4500 array, enclosure status information is provided by through the outside expanders (expander 0 for SAS fabric A, and expander 2 for SAS fabric B).

To view enclosure status information, double-click the enclosure management device icon for the array's outside expander, and then click the Status tab. See Displaying Array Enclosure Status.


Note - The array's outside expanders, which include the enclosure management information, always link array disks 0-19.


Figure 2-3 x86: Displaying Array Enclosure Status

image:Graphic showing J4500 array enclosure status in StorageTek RAID Manager

Multiple Array Identification

If you have two J4500 arrays daisy-chained it might be difficult to tell one from the other unless you have the two arrays configured differently. During boot, the HBA will create a map of the attached arrays (one of the array's will be mapped as enclosure 0 and the other array will be mapped as enclosure 1), but the order in which enclosures are found might change after a system (host and array) power cycle.

One way to tell one enclosure from another is with the unique WWN number listed in the enclosure identifier. This WWN number matches what's on the WWN label at the back of the enclosure.

In a situation where you have multiple systems and arrays, you can use the StorageTek RAID Manager's blink enclosure feature available by right-clicking on the enclosure management icon (see Displaying Array Enclosure Status). This lights the Locate LED on the front and back of the array (see Sun Storage J4500 Array Front Panel Controls and Indicators ). Then, use the enclosure's internal fault indicators to identify components requiring service.