Sun Microsystems A3500 User Manual
Sun™StorEdge™A3500 Hardware Configuration Guide
Sun Microsystems, Inc.
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Part No. 805-4981-11
September 1998, Revision A
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Contents
Preface v
1. Host Connections 1-1
1.1 Configuration Guidelines 1-2
1.2 Supported Host Configurations 1-3
1.2.1 Single Host 1-3
1.2.2 Daisy Chain 1-4
1.2.3 Independent Controller 1-5
1.2.4 Multi-Initiator 1-6
1.3 Ultra 2 Host System—Power Connection Requirement 1-7
2. StorEdge A3500 Configurations 2-1
2.1 StorEdge D1000 Disk Array Settings 2-2
2.1.1 1x2 Configuration 2-3
2.1.2 1x5 Configuration 2-5
2.1.3 2x7 Configuration 2-7
2.1.4 3x15 Configuration 2-9
2.2 1x2 Cabling 2-11
2.2.1 SCSI Cabling 2-11
2.2.2 Power Connections 2-13
2.3 1x5 Cabling 2-14
Contents iii
2.3.1 SCSI Cabling 2-14
2.3.2 Power Connections 2-16
2.4 2x7 Cabling 2-17
2.4.1 SCSI Cabling 2-17
2.4.2 Power Connections 2-19
2.5 3x15 Cabling 2-20
2.5.1 SCSI Cabling 2-21
2.5.2 Power Connections 2-25
2.5.3 Connecting to AC Power Source 2-25
2.5.4 Power Connections 2-26
iv Sun StorEdge A3500 Hardware Configuration Guide • September 1998
Preface
Sun StorEdge A3500 Hardware Configuration Guide provides configuration instructions
for the Sun™ StorEdge™ A3500 systems. These instructions are designed for an
experienced system administrator.
Using UNIX Commands
This document does not contain information on basic UNIX®commands and
procedures such as shutting down the system, booting the system, and configuring
devices.
See one or more of the following for this information:
■ Solaris 2.x Handbook for SMCC Peripherals
■ AnswerBook™ online documentation for the Solaris™ 2.x software environment
■ Other software documentation that you received with your system
v
Typographic Conventions
TABLEP-1 Typographic Conventions
Typeface or
Symbol Meaning Examples
AaBbCc123 The names of commands, files,
and directories; on-screen
computer output.
AaBbCc123
AaBbCc123 Book titles, new words or
What you type, when
contrasted with on-screen
computer output.
terms, words to be emphasized.
Command-line variable;
replace with a real name or
value.
Edit your .login file.
Use ls -a to list all files.
% You have mail.
% su
Password:
Read Chapter 6 in the User’s Guide.
These are called class options.
You must be root to do this.
To delete a file, type rm filename.
Shell Prompts
TABLEP-2 Shell Prompts
Shell Prompt
C shell machine_name%
C shell superuser machine_name#
Bourne shell and Korn shell $
Bourne shell and Korn shell superuser #
vi Sun StorEdge A3500 Hardware Configuration Guide • September 1998
Related Documentation
TABLEP-3 Related Documentation
Title Part Number
Sun StorEdge A3000 Controller Module Guide 805-4980-xx
Sun StorEdge A3500 Task Map 805-4982-xx
Sun Documentation on the Web
The docs.sun.comsmweb site enables you to access Sun technical documentation
on the Web. You can browse the docs.sun.com archive or search for a specific book
title or subject at:
http://docs.sun.com
Sun Welcomes Your Comments
We are interested in improving our documentation and welcome your comments
and suggestions. You can email your comments to us at:
docfeedback@sun.com
Please include the part number of your document in the subject line of your email.
vii
viii Sun StorEdge A3500 Hardware Configuration Guide • September 1998
CHAPTER
1
Host Connections
This chapter contains configurations for one or two Sun StorEdge A3000 controller
modules connected to one or more hosts. It also contains information about
connecting power to an Ultra™ host system.
■ Configuration Guidelines—page 1-2
■ Supported Host Configurations—page 1-3
■ Single Host—page 1-3
■ Daisy Chain—page 1-4
■ Independent Controller—page 1-5
■ Multi-Initiator—page 1-6
■ Ultra 2 Host System—Power Connection Requirement—page 1-7
1-1
1.1 Configuration Guidelines
Use the following guidelines for installing and cabling or reconfiguring your system.
■ Do not exceed a SCSI bus length of 25 meters.
■ Make sure that the last Sun StorEdge A3000 controller module in any daisy chain
has a total of two terminators, one in each SCSI OUT port.
■ If you are adding a controller module to an already existing configuration, halt all
activity on the SCSI bus before removing any SCSI cables.
■ Once you finish cabling the devices and powering on, reboot the system by
typing boot -r at the ok prompt before beginning any SCSI bus activity.
Perform a system check to make sure that SCSI connections are secure. Look for fault
LEDs on the hardware or error messages in the RAID Manager GUI.
Note – Refer to your server and rack documentation for instructions on grounding
the StorEdge A3500 cabinet.
1-2 Sun StorEdge A3500 Hardware Configuration Guide • September 1998
1.2 Supported Host Configurations
The examples that follow show the cable connections for configurations that are
supported by Sun Microsystems™.
1.2.1 Single Host
Differential SCSI
terminators
FIGURE 1-1 Single Host Connected to a Sun StorEdge A3000 Controller Module
Chapter 1 Host Connections 1-3
1.2.2 Daisy Chain
You can daisy chain controller modules in the same or separate cabinets.
SCSI cables
FIGURE 1-2 Two Sun StorEdge A3000 Controller Modules Daisy Chained to One Host
Differential SCSI
terminators
Note – The SCSI cables between the two controller modules are crossed to prevent
the SCSI IDs for the controllers from conflicting.
1-4 Sun StorEdge A3500 Hardware Configuration Guide • September 1998
1.2.3 Independent Controller
Differential SCSI
terminators
FIGURE 1-3 Independent Controller—One Sun StorEdge A3000 Controller Connected to
Two Hosts
Chapter 1 Host Connections 1-5
1.2.4 Multi-Initiator
FIGURE 1-4 Two-Node Multi-Initiator Configuration
Note – For more detailed information regarding the two-node multi-initiator
configuration, such as setting host SCSI IDs, refer to the SPARCcluster™ PDB™
documentation that is shipped with the host system.
1-6 Sun StorEdge A3500 Hardware Configuration Guide • September 1998
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