Compaq StorageWorks 2100 User manual

Compaq StorageWorks™
Third Edition (June 2000)
Part Number: EK–SE2C8–UA. C01
Compaq Computer Corporation
Model 2100 and 2200
Ultra SCSI Controller Enclosures
User Guide

Notice
© 2000 Compaq Computer Corporation.
COMPAQ, Compaq logo, and StorageWorks Registered in U. S. Patent and Trademark Office.
NonStop is a trademark of Compaq Information Technologies Group, L.P.
All other product names mentioned herein may be trademarks or registered trademarks of their
respective companies.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The
information in this document is subject to change without notice.
The information in this publication is subject to change without notice and is provided “AS IS”
WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF
THIS INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE
LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTIAL, SPECIAL, PUNITIVE OR
OTHER DAMAGES WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS
INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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OTHER FAULT OF EITHER PARTY AND REGARDLESS OF WHETHER SUCH LIABILITY
SOUNDS IN CONTRACT, NEGLIGENCE, TORT, OR ANY OTHER THEORY OF LEGAL
LIABILITY, AND NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY
LIMITED REMEDY.
The limited warranties for Compaq products are exclusively set forth in the documentation
accompanying such products. Nothing herein should be construed as constituting a further or
additional warranty.
Printed in the U.S.A.
Compaq StorageWorks Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Third Edition (June 2000)
Part Number: EK–SE2C8–UA. C01

Contents
About This Guide
Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
How This Guide is Arranged. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Array Controller Graphic Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Getting Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Chapter 1
Introducing the Controller Enclosure
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Enclosure Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Controller Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Storage CRUs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Ultra SCSI Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Communication Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Upgrading a Model 2100 Enclosure to a Model 2200 Enclosure . . . . . . . . . . . . . . . . . . . . 1–7
Redundant Controller Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Power Monitoring Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
Ultra SCSI Bus Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8

iv Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Chapter 2
Operating the Enclosure
Ultra SCSI Configuration Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
RAID Controllers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Power Application and Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Fault Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Chapter 3
Environmental Monitoring Unit
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Status Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Alphanumeric Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
SCSI Target ID Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Horn Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
EMU Reset Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8
Alarm Reminder Tones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8
Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–8
Chapter 4
Input/Output Module
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Chapter 5
Power Supply
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
Status Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3
Chapter 6
External Cache Battery
Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
Status Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–3

Contents v
Chapter 7
Fans
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–2
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–2
Status Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–3
Chapter 8
Removal and Installation Procedures
Handling Enclosure Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1
Element Replacement Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1
ESD Protective Measures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–2
Removal and Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–3
Preliminary Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–4
EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–5
I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–6
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–8
ECB Battery Pack and ECB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10
Replacing an ECB Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10
Replacing an ECB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–12
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–14
Array Controllers and Cache Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–16
Removing an Array Controller or Cache Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–17
Installing an Array Controller or Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–18
Appendix A
Regulatory Notices
Federal Communications Commission Rules and Regulations: Part 15 . . . . . . . . . . . . . . . . . . . A–1
Electromagnetic Compatibility (EMC) Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1
Country-Specific Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–2
Appendix B
Enclosure Specifications
Physical and Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4

vi Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Appendix C
Preparing an Enclosure for Use
Initial Assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–1
Removing Elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Installing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Installing Enclosure-Front Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Installing Array Controllers and Cache Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
Connecting Ultra SCSI Bus Cables and Host Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
Ultra SCSI Bus Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3
Host Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4
Installing the Power Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4
Configuring the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4
Appendix D
Error Code Data
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
Fatal Error Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
Nonfatal Error Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2
Unrecoverable Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–3
Critical Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–3
Noncritical Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–4
Informational Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–4
Alarm Reminder Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–5
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–6
Error Display Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–6
Error Code Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–6
Correcting Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–7
Error Code List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–7
Glossary
Index

Figures
Figure 1–1. Model 2100 controller enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Figure 1–2. Model 2200 controller enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Figure 1–3. Major element mounting locations (front and rear). . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Figure 1–4. Communication port location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Figure 3–1. EMU location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Figure 3–2. EMU bezel switches and status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Figure 3–3. Changing the horn mode setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Figure 3–4. Navigating within the error code displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
Figure 4–1. I/O module locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Figure 4–2. I/O module and external connector view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Figure 4–3. I/O module bay and bus number correlation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Figure 5–1. Power supply locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
Figure 5–2. 180 W power supply bezel label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
Figure 5–3. Power supply status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3
Figure 6–1. ECB bay locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Figure 6–2. ECB status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–3
Figure 7–1. Fan locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1
Figure 7–2. Fan status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–3
Figure 8–1. Element mounting locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–4
Figure 8–2. Typical element label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–4
Figure 8–3. EMU removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–5
Figure 8–4. I/O module bay to SCSI bus number correlation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–6
Figure 8–5. I/O module removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–6
Figure 8–6. Power supply removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–8
Figure 8–7. ECB bay locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–12

viii Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Figure 8–8. ECB removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–13
Figure 8–9. Fan removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–14
Figure 8–10. Array controller and cache module locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–16
Figure 8–11. Array controller removal and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–16
Figure 8–12. Cache module removal and installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–17
Figure A–1. Product label showing country-specific certifications . . . . . . . . . . . . . . . . . . . . . . . . . A–2
Figure B–1. Model 2100 controller enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1
Figure B–2. Model 2200 controller enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
Figure C–1. Enclosure-front element locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Figure C–2. I/O module mounting locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–3

Tables
Table 1–1 Major Enclosure Elements and Their Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Table 1–2 Serial Port Pinout for Power Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
Table 1–3 Ultra SCSI Bus Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
Table 3–1 EMU Monitored Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Table 3–2 EMU Alarm Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Table 5–1 Power Supply Status LED Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3
Table 6–1 ECB Status LED Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–4
Table 7–1 Fan Status LED Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–4
Table 8–1 Element Replacement Methods and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–3
Table 8–2 Removing an EMU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–5
Table 8–3 Installing an EMU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–5
Table 8–4 Removing an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–7
Table 8–5 Installing an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–7
Table 8–6 Removing a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–8
Table 8–7 Installing a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–9
Table 8–8 Replacing an ECB Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10
Table 8–9 Installing an ECB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–13
Table 8–10 Removing an ECB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–14
Table 8–11 Removing a Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–15
Table 8–12 Installing a Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–15
Table 8–13 Removing an Array Controller or Cache Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–17
Table 8–14 Installing an Array Controller or Cache Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–18
Table B–1 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
Table B–2 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
Table B–3 Enclosure UPS Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3

x Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Table B–4 Operating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4
Table B–5 Nonoperating Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4
Table C–1 Procedural References for Removing Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Table C–2 Installing Ultra SCSI Bus Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–4
Table D–1 Alarm Tones and Remind Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–5
Table D–2 Element ID Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–6
Table D–3 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–7

About This Guide
This guide includes the product description, configuration, function, status indications,
and removal and installation instructions for elements in the Model 2100 and 2200 Ultra
SCSI controller enclosures.
Intended Audience
This publication is for use by Compaq StorageWorks Model 2100 and 2200 Ultra SCSI
controller enclosure customers and employees who are responsible for configuring,
installing, and maintaining SCSI controller enclosures.
How This Guide is Arranged
This manual discusses the enclosure and its major elements. The manual is organized as
follows:
Chapter 1, Introducing the Controller Enclosure
Describes the enclosure specifics, including an overview of each enclosure and its major
elements, options for upgrading a Model 2100 enclosure to a Model 2200 enclosure, and
the cabling required to interface storage enclosures.
Chapter 2, Operating the Enclosure
Describes configuration rules for the enclosure, startup and shutdown procedures, and
fault detection.

xii Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Chapter 3, Environmental Monitoring Unit
Provides the environmental monitoring unit (EMU) product description, functionality, and
status indications.
Chapter 4, Input/Output Module
Provides the input/output (I/O) module product description, configuration, and status
indication.
Chapter 5, Power Supply
Provides the enclosure power supply assembly product description, configuration, and
status indications.
Chapter 6, External Cache Battery
Provides the external cache battery (ECB) product description, status indications, and
configuration.
Chapter 7, Fans
Provides the fan assembly product description, configuration, functionality, and status
indications.
Chapter 8, Removal and Installation Procedures
Describes the physical removal and installation instructions for all enclosure elements,
including the array controllers, cache modules, and ECB battery pack.
Appendix A, Regulatory Notices
Provides enclosure regulatory notices.
Appendix B, Enclosure Specifications
Provides enclosure physical, electrical, and environmental specifications.

About This Guide xiii
Appendix C, Preparing an Enclosure for Use
Describes how to assemble the enclosure. Identifies the recommended sequence to follow
and provides information essential to assembling the enclosure.
Appendix D, Error Code Data
Describes alarm levels and error codes presented on the EMU alphanumeric display.
Glossary
Index
Array Controller Graphic Usage
This guide contains figures that illustrate the Compaq StorageWorks array controller as an
HSG-series array controller; however, any array controller supported by the Model 2100
or 2200 enclosure can be installed.
Model 2100 enclosures use array controllers that support only two I/O modules, such as
the HSG60 array controller. Model 2200 enclosures use array controllers that support six
I/O modules, such as the HSG80 array controller.
Getting Help
After exhausting the information in this guide, obtain further information and help using
the Compaq website at http://www.compaq.com/storage/. This website also provides access
to worldwide Compaq technical support phone numbers through the “Contact Us”link.

xiv Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Conventions
This guide uses the text conventions in Table 1 and special notices provided within this
section.
Text Conventions
Table 1 Documentation Conventions
Bold
EMU alphanumeric display characters are presented in boldface. For
example:
Ho for horn mode and En for enabled.
SMALL CAPS Used to indicate the status of an LED. For example:
FLASHING means turning on and off, ONmeans on, and OFF means off
italic type Italic type emphasizes important information and indicates complete titles of
manuals.
courier type Courier type indicates a keyboard command or screen display data.
A/R As required
The light emitting diode (LED) is OFF.
The LED is FLASHING (blinking in half-second cycles).
The LED is ONor blinking rapidly (blinking less than half-second cycles).

About This Guide xv
Special Notices
This guide does not contain detailed descriptions of standard safety procedures. However,
the guide does contain warnings for procedures that might cause personal injury and
cautions for procedures that might damage the controller or its related components. Look
for these symbols when performing the procedures in this guide:
WARNING: A warning indicates the presence of a hazard that can cause personal
injury if precautions in the text are not observed.
CAUTION: A caution indicates the presence of a hazard that might damage hardware,
corrupt software, or cause a loss of data.
IMPORTANT: An important note is a type of note that provides information essential to the
completion of a task. Users can disregard information in a note and still complete a task, but
they should not disregard an important note.
NOTE: A note provides additional information that is related to the completion of an instruction
or procedure.

xvi Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Related Documents
Table 2 identifies publications that contain additional information relevant to Model 2100
and 2200 enclosure products.
Table 2 Relevant Publications
Publication Title Publication Number
Installation and Configuration Guide for a specific platform Varied
HSG80 Array Controller ACS Version 8.n1Configuration Guide EK-HSG85-CG
HSG60/HSG80 Array Controller ACS Version 8.n1CLI Reference Guide EK-HSG85-RG
HSG60/HSG80 Array Controller ACS Version 8.n1Maintenance and Service
Guide
EK-HSG84-SV
HSJ80 Array Controller ACS Version 8.n1Installation and Configuration Guide Varied
HSJ80 Array Controller ACS Version 8.n1Configuration Planning Guide EK-HSJCP-PA
HSJ80 Array Controller ACS Version 8.n1CLI Reference Guide EK-HSJCL-RA
HSJ80 Array Controller ACS Version 8.n1Maintenance and Service Guide EK-J80MS-SA
HSJ80 Array Controller ACS Version 8.n1Troubleshooting Resources Guide EK-J80TR-SA

Chapter 1
Introducing the Controller Enclosure
The Compaq StorageWorks Model 2100 and 2200 Ultra SCSI controller enclosures use
Ultra SCSI buses to transmit and store data within up to six storage enclosures.
This chapter describes the enclosure and its major elements, called customer replaceable
units (CRUs), and various enclosure options. Figure 1–1 illustrates a Model 2100
enclosure; Figure 1–2 illustrates a Model 2200 enclosure.
NOTE: This Compaq StorageWorks enclosure only supports single-ended Ultra SCSI buses.
Figure 1–1. Model 2100 controller enclosure
CXO6321D
CXO7235A

1–2 Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
Figure 1–2. Model 2200 controller enclosure
Product Description
The Compaq StorageWorks array controllers process host data and distribute this data (at
the same rate) over six buses to storage enclosures. The controller enclosure is connected
to the storage enclosure with single-ended, 16-bit (wide) Ultra SCSI bus cables. Table 1–1
lists the elements (devices) this enclosure accommodates and their functions.
CXO6321D
CXO6322C
Table 1–1 Major Enclosure Elements and Their Functions
Element Function
Array controller A minimum of one or a maximum of two array controllers to operate the enclosure data buses.
Cache modules A minimum of one or a maximum of two cache modules to support array controller operations.
One cache is required per array controller. Each cache requires an external cache battery (ECB).
ECB Four ECB bays are provided, but the enclosure supports only two ECBs at any given time. ECBs
provide backup DC power to the cache modules in the event of a primary power failure. One ECB
is required per installed array controller and cache set.
Environmental
monitoring unit (EMU)
Monitors enclosure operations, detects and reports error conditions, and automatically initiates
some corrective actions.
Input/output (I/O)
module
Ultra SCSI single-ended I/O modules for connecting the enclosure to storage enclosures. Model
2100 enclosures support only two I/O modules; Model 2200 enclosures support six I/O modules.
Power supply A minimum of one or a maximum of two 180 W power supplies provide DC power to enclosure
elements.
Fan Three dual-speed fan (blower) assemblies provide cooling air to enclosure elements.

Introducing the Controller Enclosure 1–3
For enclosures with fewer than the maximum number of elements installed, install blank
panels or blank bezels to control airflow. Blank panels are required for empty array
controller and cache module bays to reduce electromagnetic interference (EMI) and to
maintain cooling airflow within operational requirements.
WARNING: When both array controller bays or a cache module bay is empty, a shock
hazard exists on the backplane. Do not touch the backplane.
Always install a blank panel in any bay not currently in use.
NOTE: Compaq recommends using blank panels at all times for any empty enclosure element
location to prevent a potential overtemperature condition. Since only two ECB bays are used at
any one time—one per cache module—install a blank in any vacant ECB bay.
The enclosure mounts in a rack (cabinet) containing Radio Electronics Television
Manufacturing Association (RETMA)—now known as Electronics Industries Association
(EIA)—mounting rails. In a RETMA rack, the enclosure installs in a four unit (4U, which
equals 177 mm/7 in) mounting space. To fill the full 4U height, a filler panel is positioned
directly above the enclosure.
Prerequisites
The minimum set of major elements recommended for enclosure operations includes:
■Array controller
■Cache module
■EMU
■ECB
■Two 180 W power supplies
■Three fans
■I/O modules:
❏Two in a Model 2100 enclosure
❏Six in a Model 2200 enclosure

1–4 Model 2100 and 2200 Ultra SCSI Controller Enclosures User Guide
All of these elements (except the redundant power supply and the EMU) are essential
elements for normal enclosure operation. Without the EMU, the enclosure loses some
features and functionality, but data storage capabilities continue as normal. Any empty
element bay requires the installation of a blank assembly. Figure 1–3 identifies major
element locations within the enclosure.
Figure 1–3. Major element mounting locations (front and rear)
NOTE: Model 2100 enclosures support only two I/O modules; whereas Model 2200 enclosures
support all six I/O modules. For Model 2100 enclosures, a blank panel covers the four vacant I/O
module bays (see Figure 1–1).
Appendix C describes the recommended sequence to follow for preparing an enclosure for
use.
1 ECBs
2 Fans
3 EMU
4 Power supplies
5 I/O modules
6 Array controllers
(Top: A; Bottom: B)
7 Cache modules
(Left: A; Right: B)
CXO6323C
1 1 1 1
2 2 2 3
CXO6325D
5
55 55 5
44
7 7
6
6