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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 Common Array Manager Software

The Sun StorageTek Common Array Manager (CAM) software suite is your main tool for Sun Storage array enclosure management, monitoring, and service capabilities. The software has both a secure browser interface and a command-line interface (CLI). CAM is supported for use with Solaris, Linux and Windows platforms.

Viewing Sun Storage J4500 Array Information With CAM

CAM provides both a browser and command line interface. When using the browser interface, you set up user accounts to manage your array storage. When an authorized user logs in, information is laid out in pages. A handy navigation tree lists available information, see Example CAM Summary and FRU Information for the J4500 Array.

Figure 2-1 Example CAM Summary and FRU Information for the J4500 Array

image:Graphic showing example of CAM FRU summary page

Use the navigation tree to move among pages within an application. You can click a link to get details about a selected item (such as alarms, FRUs, events, array health). You can also sort and filter information displayed on a page. When you place your pointer over a button, tree object, link, icon, or column, a tooltip provides a brief description of the object.

Information about using CAM the web interface or CLI is available on the Sun documentation web site. Refer to the appropriate version of CAM documentation for complete details about installing and using CAM:

http://docs.sun.com/app/docs/prod/stor.arrmgr#hic

Problem Resolution

CAM provides two helpful tools for resolving problems that might occur with the array:

Zoning Array Storage Resources Using CAM

Starting with CAM 6.4.1, support for zoning of J4500 array storage has been added. Zoning is a configuration method that takes the available connected storage and allows each host to have its own storage resources. Zoning is done on a per host, per hard disk level. Zoning allows for storage resource segregation, controlled resource sharing, protection, and topology control. The Sun Common Array Manager (CAM) is required to configure the J4500 storage for zoning.

For more information about zoning array storage resources, see Chapter 3, Adding and Zoning Array Storage Using CAM.

Upgrading Sun Storage J4500 Array Firmware Using CAM

The J4500 array enclosure contains upgradable firmware. You may want to upgrade the enclosure firmware to:

The Sun Common Array Management (CAM) software provides firmware upgrade capabilities for the J4500 array connected to any supported HBA. For more information on using the CAM software, refer to the appropriate version of CAM documentation:

http://docs.sun.com/app/docs/prod/stor.arrmgr#hic

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

The J4500 array enclosure contains two SAS fabrics (A and B). Each fabric has its own set of SAS expanders. The firmware upgrade process is only performed on the fabric with the active SAS link to the HBA. When upgrading array enclosure firmware, Sun recommends that you upgrade firmware on both SAS fabrics to ensure they are at the same revision level.

This will require you to take the following steps:

  1. Using CAM, perform the upgrade on the enclosure's primary SAS fabric.

  2. Then, at a convenient time, move the SAS cable to the enclosure's secondary SAS fabric.

    When performing this action, allow time between the removal of the link from the primary fabric and the reconnection to the secondary fabric for your HBA to recover from the lost and then re-established SAS link. Depending on the HBA, this can take up to 3 minutes for each link state change. For example, wait 3 minutes after the SAS cable is disconnected for the HBA to confirm that the link is lost; wait 3 minutes after the SAS cable is connected for the HBA to discover the drives.

  3. Using CAM, perform the upgrade on the enclosure's secondary SAS fabric.

  4. Repeat steps 1-3 on any daisy-chained J4500 array.

Obtaining CAM Software

Support for the J4500 array is available starting with CAM version 6.1.2; support for zoning is available with CAM version CAM 6.4.1. To obtain the latest CAM software (which includes J4500 array firmware), go to the Sun software download site.

Refer to the appropriate version of CAM documentation for complete details about installing and using CAM.

http://docs.sun.com/app/docs/prod/stor.arrmgr#hic