Compaq RA8000, ESA12000 User Manual

RA8000 and ESA12000 Storage Subsystems

User's Guide

EK-SMCPR-UG. A01 387404-001

Compaq Computer Corporation

While Compaq Computer Corporation believes the information included in this manual is correct as of the date of publication, it is subject to change without notice. Compaq makes no representations that the interconnection of its products in the manner described in this document will not infringe existing or future patent rights, nor do the descriptions contained in this document imply the granting of licenses to make, use, or sell equipment or software in accordance with the description. No responsibility is assumed for the use or reliability of firmware on equipment not supplied by Compaq or its affiliated companies. Possession, use, or copying of the software or firmware described in this documentation is authorized only pursuant to a valid written license from Compaq, an authorized sublicensor, or the identified licensor.

Commercial Computer Software, Computer Software Documentation and Technical Data for Commercial Items are licensed to the U.S. Government with Compaq’s standard commercial license and, when applicable, the rights in DFAR 252.227 7015, “Technical Data-Commercial Items.”

Compaq, the Compaq logo, DIGITAL, DIGITAL UNIX, DECconnect, HSZ, HSG, StorageWorks, VMS, OpenVMS Registered in the United States Patent and Trademark Office.

UNIX is a registered trademark in the United States and other countries exclusively through X/Open Company Ltd. Windows NT is a registered trademark of the Microsoft Corporation. Sun is a registered trademark of Sun Microsystems, Inc. Hewlett-Packard, TACHYON, and HP-UX are registered trademarks of the Hewlett-Packard Company. IBM and AIX are registered trademarks of International Business Machines Corporation. All other trademarks and registered trademarks are the property of their respective owners.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the manuals, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Restrictions apply to the use of the local-connection port on this series of controllers; failure to observe these restrictions may result in harmful interference. Always disconnect this port as soon as possible after completing the setup operation. Any changes or modifications made to this equipment may void the user's authority to operate the equipment.

Warning! This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Achtung!

Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.

Attention! Ceci est un produit de Classe A. Dans un environnement domestique, ce produit risque de créer des interférences radioélectriques, il appartiendra alors à l’utilisateur de prendre les mesures spécifiques appropriées.

JAPAN

USA This equipment generates, uses, and may emit radio frequency energy. The equipment has been type tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC rules, which are designed to provide reasonable protection against such radio frequency interference. Operation of this equipment in a residential area may cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. Any modifications to this device - unless expressly approved by the manufacturer - can void the user’s authority to operate this equipment under part 15 of the FCC rules.

Contents

Revision Record About This Guide

...................................................................................................... xiii

......................................................................................................xv

1 Product Description

1.1 Subsystem Overview..................................................................................................1–1

1.2 Major Components ....................................................................................................1–6

1.2.1 Array Controllers....................................................................................................1–8

1.2.2 SCSI Buses.......................................................................................................... 1–10

1.2.3 Single-Ended I/O Module (SE I/O) ......................................................................1–11

1.2.3.1 Expanding the UltraSCSI Bus ............................................................................1–12

1.2.3.2 Controlling the Internal SCSI Bus..................................................................... 1–13

1.2.3.3 Controlling the External SCSI Bus....................................................................1–13

1.2.3.4 Controlling the Fault Bus.................................................................................. 1–13

1.2.3.5 “Warm Swapping” I/O Modules and Cables...................................................... 1–13

1.2.3.6 Maximum Bus Length....................................................................................... 1–14

1.3 Error Detection and Reporting .................................................................................1–14

1.3.1 Fault Bus .............................................................................................................1–14

1.3.2 Environmental Monitor Unit (EMU).................................................................... 1–15

1.3.2.1 EMU Front Panel.............................................................................................. 1–13

1.3.2.2 Array Controller Status.....................................................................................1–17

1.3.2.3 I/O Module Status............................................................................................. 1–17

1.3.2.4 Enclosure Configuration Information................................................................ 1–17

1.3.3 Power Verification and Addressing (PVA) Module.............................................. 1–18

1.3.3.1 Monitoring Power Supply Operation................................................................. 1–19

1.3.3.2 Master Enclosure Controlled Power Shutdown.................................................. 1–20

1.3.3.3 Expansion Enclosure Initiated Power Shutdown................................................ 1–21

1.4 Storage Device SBBs.............................................................................................. 1–22

1.5 Power Configuration...............................................................................................1–22

1.5.1 AC Input Power Entry Controllers .......................................................................1–23

1.6 Power Supply SBBs................................................................................................1–24

1.7 Standard (4 + 1) Power Configuration ................................ ................................ ..... 1–25

1.8 Redundant (4 + 4) Power Configuration..................................................................1–26

1.9 ECB SBBs .............................................................................................................. 1–28

EK–SMCPR–UG. A01 387404-001 v

RA8000 and ESA12000 Storage Subsystems

1 Product Description (continued)

1.10 Subsystem Cooling ............................................................................................... 1–30

1.11 Setting the PVA SCSI Address.............................................................................. 1–32

1.11.1 Compaq Supported Master PVA Address........................................................... 1–33

1.11.2 Compaq Supported Expansion PVA Addresses .................................................. 1–34

1.11.3 Non-Supported PVA SCSI Bus Addresses.......................................................... 1–34

2 Installing the RA8000 and ESA12000 Storage Subsystems

2.1 Installing the RA8000................................................................................................2–1

2.1.1 RA8000 Site Preparation........................................................................................2–1

2.1.2 Placing the RA8000 Storage Enclosure................................................................ ..2–2

2.1.3 Connecting the Subsystem to the Host ...................................................................2–2

2.2 Installing the ESA12000............................................................................................2–2

2.2.1 Site Preparation......................................................................................................2–2

2.2.2 Moving the ESA12000 to It’s Designated Site .......................................................2–3

2.2.3 Joining Adjacent ESA12000’s................................................................................2–4

2.2.4 SW42U Cabinet Rack Mount Template..................................................................2–4

2.3 BA370 Major Components.........................................................................................2–5

2.3.1 Installing Storage Building Blocks (SBBs).............................................................2–7

2.3.2 Installing the External Cache Battery (ECB) ........................................................ 2–11

2.4 Installing Additional Components (Options)............................................................2–12

2.4.1 Installing BA370 Universal Mounting Kit DS-BA370-XB ...................................2–12

2.4.2 Connecting AC Power and ECB Cables................................................................2–25

2.4.3 Installing the Ds-BA356-SG UltraSCSI Hub 41U RETMA Shelf Mounting Kit ...2–26

2.4.4 Installing a Filler Panel Mounting Kit in a 41U RETMA Cabinet......................... 2–30

2.4.5 Installing the DS-SWX4U-2U ECB Shelf Mounting Kit.......................................2–33

2.4.6 Installing the Fibre Channel Hub Mounting Kit.................................................... 2–36

2.4.7 Cabling a Master Enclosure to an Expansion Enclosure(s) ...................................2–46

2.4.8 Setting the PVA Addresses .................................................................................. 2–49

2.5 Installing SBBs........................................................................................................2–52

2.5.1 Installing SBB Disk Drives..................................................................................2–52

2.5.2 Installing Power Supply SBBs.............................................................................. 2–53

2.5.3 Installing the AC Input Power Controller.............................................................2–55

2.5.4 Installing the External Cache Battery (ECB) ........................................................ 2–56

387404-001 EK–SMCPR–UG. A01vi

3 Configuring the Storage Cabinet

3.1 Configuring the EMU ................................................................................................3–1

3.1.1 Connecting the EMU Communications Bus ...........................................................3–2

3.1.2 Setting the Temperature Sensors............................................................................3–2

3.1.3 Setting the Blower Speed Control ..........................................................................3–4

3.1.4 Alarm Control Switch............................................................................................3–5

3.2 Setting the PVA Addresses.....................................................................................3–6

4 Error Analysis and Fault Isolation

4.1 Storage Subsystem Error Reporting ..........................................................................4–1

4.2 EMU Error and Fault Status Reporting......................................................................4–4

4.3 EMU Subsystem Status LEDs...................................................................................4–5

4.3.1 EMU Status LEDs..................................................................................................4–5

4.3.2 Configuration Fault Code Reporting.......................................................................4–9

4.3.3 Shutting Down the Subsystem.............................................................................. 4–15

4.4 Controller Error Conditions ....................................................................................4–15

4.5 Storage Device Fault Notification........................................................................... 4–16

4.6 Power Supply Fault Notification............................................................................. 4–18

4.7 I/O Module and Expansion Cable Error Conditions................................................. 4–20

4.7.1 I/O Module or Expansion Cable........................................................................... 4–20

4.7.2 Incompatible I/O Modules ...................................................................................4–20

4.7.3 No I/O Module Installed ......................................................................................4–20

4.7.4 TERMPOWER Errors .......................................................................................... 4–21

5 Replacing Components

5.1 Replacing a Controller, Cache Module or External Cache Battery.............................5–1

5.1.1 Tools Required.......................................................................................................5–1

5.1.2 Precautions ............................................................................................................5–1

5.2 Preparing Your Host System.....................................................................................5–2

5.2.1 Back Up the System...............................................................................................5–2

5.3 Array Controller Replacement ..................................................................................5–3

5.3.1 Array Controller Removal......................................................................................5–3

5.3.2 Array Controller Installation..................................................................................5–4

5.4 Cache Module Replacement......................................................................................5–6

5.4.1 Cache Module Removal.........................................................................................5–6

5.4.2 Cache Module Installation .....................................................................................5–7

5.5 External Cache Battery Replacement ........................................................................5–8

5.6 Shutting Down the Subsystem................................................................................. 5–10

5.6.1 Automatic Shutdown Using Standby Power Mode ............................................... 5–10

5.6.2 Full Power Shutdown...........................................................................................5–10

5.6.2.1 Shutting Down the Subsystem for a Cold Swap................................................. 5–11

5.6.2.2 Turning On the Subsystem................................................................................5–11

5.6.2.3 Disabling the External Cache Batteries..............................................................5–12

5 Replacing Components (continued)

5.7 Disk Drive SBB Replacement.................................................................................5–13

5.7.1 SBB Handling Procedures.................................................................................... 5–14

Contents

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RA8000 and ESA12000 Storage Subsystems

5.7.1.1 Hot Swap.......................................................................................................... 5–15

5.7.1.2 Warm Swap ......................................................................................................5–15

5.7.1.3 Cold Swap.........................................................................................................5–15

5.7.2 Disk Drive SBB Removal ....................................................................................5–16

5.7.3 Single Disk Drive SBB Installation...................................................................... 5–16

5.7.4 Multiple Disk Drive SBB Installation in an UltraSCSI Enclosure......................... 5–17

5.8 Power Supply SBB Replacement............................................................................. 5–19

5.8.1 Handling Instructions ........................................................................................... 5–20

5.8.2 Power Supply SBB Removal ................................ ................................ ................ 5–20

5.8.3 Power Supply SBB Installation............................................................................ 5–20

5.9 Enclosure Blowers.................................................................................................. 5–21

5.9.1 Enclosure Blower Removal..................................................................................5–21

5.9.2 Enclosure Blower Installation .............................................................................. 5–21

5. 10 AC Input Power Entry Controller..........................................................................5–23

5.10.1 AC Input Power Entry Controller Removal........................................................ 5–24

5.10.2 AC Input Power Entry Controller Installation..................................................... 5–24

5. 11 EMU ...................................................................................................................5–25

5.11.1 EMU Removal...................................................................................................5–25

5.11.2 EMU Installation................................................................................................5–25

5.12 PVA Module................................................................ ................................ ......... 5–26

5.12.1 PVA Removal.................................................................................................... 5–27

5.12.2 PVA Installation ................................................................................................ 5–28

5.13 I/O Module........................................................................................................... 5–29

5.13.1 I/O Module Removal.......................................................................................... 5–30

5.13.2 I/O Module Installation......................................................................................5–30

5.14 FRU Parts List...................................................................................................... 5–32

387404-001 EK–SMCPR–UG. A01viii

Figures

Figure 1–1 BA370 Rack Mountable Enclosure................................................................1–1

Figure 1–2 RAID 8000 Pedestal......................................................................................1–2

Figure 1–3A ESA12000 Storage Cabinet (Shown with two BA370 Rack Mountable

Enclosures in a Single Cabinet)...................................................................1–3

Figure 1–3B Joined ESA12000 Storage Cabinet (Shown with Four BA370 Rack

Mountable Enclosures in Two Cabinets).....................................................1–4

Figure 1–4 Configured BA370 Rack Mountable Unit Major Components.......................1–7

Figure 1–5 HSG80 Array Controller and Cache Modules................................ ................1–8

Figure 1–6 HSZ80 Array Controller and Cache Modules................................................1–9

Figure 1–7 SCSI Buses................................................................................................. 1–10

Figure 1–8 Single-Ended I/O Module Location............................................................. 1–11

Figure 1–9 Single-Ended I/O Module ........................................................................... 1–12

Figure 1–10 Environmental Monitor Unit (EMU)......................................................... 1–15

Figure 1–11 Power Verification and Addressing (PVA) Module................................... 1–18

Figure 1–12 Disk Drive SBB ........................................................................................1–22

Figure 1–13 AC Input Power Entry Controller.............................................................. 1–23

Figure 1–14 Typical Shelf Power Supply SBB..............................................................1–24

Figure 1–15 Standard Power Configuration (4 + 1).......................................................1–26

Figure 1–16 Redundant Power Configuration (4 + 4)....................................................1–27

Figure 1–17 Dual- Battery (ECB) SBB .........................................................................1–28

Figure 1–18 Cache-to ECB-Connection ........................................................................1–30

Figure 1–19 Dual Speed Blower Locations ................................................................... 1–31

Figure 1–20 PVA SCSI Address Switch........................................................................ 1–32

Figure 1–21 Enclosure SCSI Bus Addresses for all SBB Device IDs.............................1–33

Figure 2–1 RA8000 Minimum Installation Clearance Measurements..............................2–1

Figure 2–2 Minimum Installation Clearance Measurements............................................2–2

Figure 2–3 ESA12000 Storage Subsystem ......................................................................2–3

Figure 2–4 Leveler Foot Adjustment...............................................................................2–4

Figure 2–5 ESA12000 Subsystem Major Components ....................................................2–5

Figure 2–6 SCSI Buses, Associated Ports, and Device Addressing..................................2–8

Figure 2–7 Installing SBB Power Supply (n+1 Shown)...................................................2–9

Figure 2–8 Installing an AC Input Power Entry Controller ........................................... 2–10

Figure 2–9 Installing the External Cache Batteries into the ESA12000 .........................2–11

Figure 2–10 Installing Left-Lower Mounting Plate (41U RETMA Shown)....................2–15

Figure 2–11 Installing Right-Lower Mounting Plate (41U RETMA Shown) .................2–16

Figure 2–12 Positioning the LED Bracket on the BA370...............................................2–18

Contents

EK–SMCPR–UG. A01 387404-001 ix

RA8000 and ESA12000 Storage Subsystems

Figures (continued)

Figure 2–13 Installing the LED Bracket and the BA370 Mounting Brackets................. 2–19

Figure 2–14 Installing the Cover Plate.......................................................................... 2–22

Figure 2–15 Installing ECB Y-Cables........................................................................... 2–25

Figure 2–16 Mounting Bracket Stop Positions.............................................................. 2–27

Figure 2–17 Mounting Example Using Stop Position 1.................................................2–27

Figure 2–18 Three-Port UltraSCSI Configuration Layout..............................................2–29

Figure 2–19 Five-Port UltraSCSI Configuration Layout................................................ 2–29

Figure 2–20 Installing the Cover Plate.......................................................................... 2–32

Figure 2–21 Installing the ECB Shelf Mounting Kit...................................................... 2–34

Figure 2–22 Three FC Hub Configuration Example...................................................... 2–36

Figure 2–23 Installing U-Nuts and Brackets..................................................................2–38

Figure 2–24 Attaching Slide Brackets...........................................................................2–39

Figure 2–25 Installing Slide Brackets ...........................................................................2–40

Figure 2–26 Dual Controller, Dual Hub Configuration.................................................. 2–41

Figure 2–27 Single Controller/Single Server/Single Port...............................................2–42

Figure 2–28 Single Controller/Single Server/Dual Port Configuration ..........................2–42

Figure 2–29 Dual Controller/Single Server/Single Port Configuration ..........................2–43

Figure 2–30 Dual Controller/Single Server/Dual Port Configuration............................. 2–43

Figure 2–31 Single Controller/Dual Server/Dual Port Configuration............................. 2–44

Figure 2–32 Multiple Server/Dual Controller Configuration......................................... 2–44

Figure 2–33 Clustered Dual Server/Single Hub Configuration .......................................2–45

Figure 2–34 SE I/O Port Identification.......................................................................... 2–46

Figure 2–35 SE I/O Port Wiring (One Expansion Unit)................................................. 2–47

Figure 2–36 SE I/O Connections for Two Expansion Units...........................................2–48

Figure 2–37 EMU Front Panel...................................................................................... 2–48

Figure 2–38 Multiple EMUs Connected Together......................................................... 2–49

Figure 2–39 PVA Module Front Panel.......................................................................... 2–49

Figure 2–40 Expansion Enclosure SCSI Bus Addresses ................................................2–51

Figure 2-41 Installing Power Supply SBB (4+1 Shown)................................................ 2–54

Figure 2–42 ECB Shelf Location (ESA12000 Shown)....................................................2–56

Figure 4–1 Storage Subsystem Status LEDs....................................................................4–2

Figure 4–2 EMU Front Panel Layout..............................................................................4–4

Figure 4–3 HSG80 and HSZ80 OCP Display ...............................................................4–15

Figure 4–4 Disk Drive SBB LEDs ................................................................................4–16

Figure 4–5 Power Supply SBB Status LEDs .................................................................4–18

387404-001 EK–SMCPR–UG. A01x

Figures (continued)

Figure 4–6 I/O Module LEDs .......................................................................................4–21

Figure 5–1 Array Controllers and Cache Modules............................................................5–3

Figure 5–2 External Cache Battery Storage Building Block............................................5–8

Figure 5–3 External Cache Batteries............................................................................. 5–12

Figure 5–4 Location of the Disk Drive SBB.................................................................. 5–13

Figure 5–5 Placement of Multiple Disk Drive SBBs..................................................... 5–18

Figure 5–6 Location of the Power Supply SBB............................................................. 5–19

Figure 5–7 Location of the Blowers.............................................................................. 5–22

Figure 5–8 Location of the AC Input Power Entry Controller .......................................5–23

Figure 5–9 Location of the EMU ..................................................................................5–25

Figure 5–10 EMU Communication............................................................................... 5–26

Figure 5–11 Location of the PVA ................................................................................. 5–27

Figure 5–12 Location of the I/O Modules .....................................................................5–29

Figure 5–13 Storage Cabinet Field Replaceable Parts (RA8000 Pedestal Shown).......... 5–33

Contents

EK–SMCPR–UG. A01 387404-001 xi

RA8000 and ESA12000 Storage Subsystems

Tables

Table 1–1 EMU Front Panel Component Descriptions..................................................1–16

Table 1–2 Storage Subsystem Major Power Components................................ .............. 1–23

Table 1–3 ECB Status Indications................................................................................. 1–29

Table 1–4 Expansion Enclosure Address Combinations............................................... 1–34

Table 2–2 Installing Rails for the Upper BA370 ........................................................... 2–18

Table 2–3 Installing Rails for the Lower BA370........................................................... 2–18

Table 2–5 Expansion Enclosure Address Combinations............................................... 2–28

Table 3–1 EMU Set Point Temperature Conversions ......................................................3–3

Table 3–2 Temperature Set Point Rules – EMU Firmware Vers. 1.0 and 1.1...................3–3

Table 3–3 Temperature Set Point Rules – EMU Firmware Vers. 1.2 and 1.3...................3–4

Table 3–4 Expansion Enclosure Address Combinations..................................................3–7

Table 4–1 Subsystem Status LEDs...................................................................................4–3

Table 4–2 EMU Subsystem Status LEDs ........................................................................4–5

Table 4–3 EMU Status Displays ..................................................................................... 4–6

Table 4–4 EMU Fault Code LEDs Displays.................................................................. 4–10

Table 4–5 Storage SBB Status LED Conditions............................................................ 4–17

Table 4–6 Storage SBB Status LED Displays................................................................ 4–17

Table 4–7 Power Supply SBB Status LED Conditions .................................................. 4–18

Table 4–8 Power Supply SBB Status LED Displays.......................................................4–19

Table 5–1 SBB Handling Rules.....................................................................................5–14

Table 5–2 Subsystem Field Replaceable Units..............................................................5–32

387404-001 EK–SMCPR–UG. A01xii

Revision Record

This Revision Record provides a concise publication history of this guide. It lists the manual revision levels, release dates, and summary of changes.

The following revision history lists all revisions of this publication and their effective dates. The publication part number is included in the Revision Level column, with the last entry denoting the latest revision.

Revision Level Date Summary of Changes

EK–SMCPR–UG. A01 November 1998 Initial release

EK–SMCPR–UG. A01 387404-001 xiii

About This Guide

This section identifies the users of this guide and describes the contents and structure. In addition, it includes a list of conventions used in this guide and related documentation.

RA8000 and ESA12000 Storage Subsystems User's Guide

This guide provides a product description, set up, configuration, and maintenance information for the RAID Array 8000 (RA8000) and the Enterprise Storage Array 12000 (ESA12000) Storage Subsystems.

Visit Our Web Site for the Latest Information

Check our web for the latest drivers , technical tips, and documentation. We can be found in the technical area of our web page,

Intended Audience

This guide is intended for users who are responsible for installing, configuring, and repairing the RA8000 and ESA12000 Storage Subsystems.

Document Structure

This guide contains the following chapters:

Chapter 1: Product Description

Product Description

Subsystems. It also describes their components, features, and operating functions.

provides a product overview of the RA8000 and ESA12000 Storage

http://www.compaq.com/

Chapter 2: Installing the RA8000 and ESA12000

Installing the RA8000 and ESA12000

site preparation, installing SBBs, and cable connections between the subsystem and the host. The chapter also describes how to install options and how to connect a master ESA12000 to an expansion enclosure.

EK–SMCPR–UG. A01 387404-001 xv

describes how to install the subsystem. It includes

RA8000 and ESA12000 Storage Subsystems

Chapter 3: Configuring the Storage Cabinet

Configuring the Storage Cabinet

bus and setting monitoring controls.

describes how to connect the EMU communications

Chapter 4: Error Analysis and Fault Isolation

Error Analysis and Fault Isolation

that may occur during the enclosure's initialization and operation.

describes the errors, faults, and significant events

Chapter 5: Replacing Components

Replacing Components

Replaceable Units (FRUs) in the subsystem.

describes the procedures to remove and install the Field

Conventions

This guide uses the following conventions:

Style Meaning

boldface type For emphasis and user input.

italic type

plain monospace type

For emphasis, manual titles, utilities, menus, screens, and filenames

Screen text.

Related Documentation

For additional information on the RAID array controller, refer to the following StorageWorks documents:

Document Title Document Part Number

HSG80 Array Controller ACS Version 8.x Configuration and CLI Reference Guide EK-HSG80-RG/387402-001

HSG80 Array Controller ACS Version 8.x Maintenance and Service Guide EK-HSG80-SV/355218-001

HSZ80 Array Controller ACS Version 8.x Configuration and CLI Reference Guide EK-HSZ80-RG/388222-001

HSZ80 Array Controller ACS Version 8.x Maintenance and Service Guide EK- HSZ80-SV/388221-001

xvi 387404-001 EK–SMCPR–UG. A01

Product Description

This chapter describes the RA8000 and ESA12000 Storage Subsystems including the Ultra Small Computer System Interface (SCSI-3) connections (ports) for StorageWorks building block (SBB) shelves.

1.1 Subsystem Overview

The RA8000 and ESA12000 Storage Subsystems are members of Compaq’s StorageWorks family of modular enclosures. They share a common major component, the BA370 Rack Mountable Enclosure (Figure 1-1), that includes an Environmental Monitor Unit (EMU), a Power Verification and Addressing (PVA) module, power supplies, and an AC Power Entry Controller. StorageWorks storage devices, redundant power supplies, array controller(s), cache module(s), External Cache Battery (ECB), and redundant ac power entry controllers may also be included. Figures 1-2 , 1-3A, and 1-3B show three possible BA370 configurations.

Figure 1–1 BA370 Rack Mountable Enclosure

CXO5797A

EK–SMCPR–UG. A01 387404-001 1–1

RA8000 and ESA12000 Storage Subsystems

Figure 1–2 RAID 8000 (RA8000) Pedestal

SHR-1145

1–2 387404-001 EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–3A ESA12000 Storage Cabinet (shown with two BA370

rack-mountable enclosures in a single cabinet)

CXO6618A

EK–SMCPR–UG. A01 387404-001 1–3

RA8000 and ESA12000 Storage Subsystems

Figure 1–3B Joined ESA12000 Storage Cabinets (shown with four BA370

rack-mountable enclosures in two cabinets)

CXO6619A

1–4 387404-001 EK–SMCPR–UG. A01

Chapter 1. Product Description

The major features of the BA370 rack mountable enclosure are as follows:

Holds up to twenty-four 3½-inch disk drive SBBs per BA370

•

Redundant power distribution to eliminate single points of failure

•

Redundant ac power entry controllers

•

Contains six, single-ended, Ultra Wide SBB backplane SCSI buses

•

Minimizes SCSI bus cables

•

A StorageWorks HSG80 or HSZ80 RAID array controller (can hold single or dual

•

redundant array controllers) All major components, except the single ended I/O modules and PVA module, can

•

be replaced using the hot-swap method which reduces down time (described in Chapter 5)

Fault monitoring and reporting capability for incorrect voltages, shelf blower failure,

•

power supply failure, and excessive operating temperature The BA370 may be used as a master or an expansion unit

•

One or two expansion enclosures can be connected to a master enclosure which

•

provides SBB slots for up to 72 disk drives

NOTE

The mas ter unit c ontains the arr ay control ler(s) and cache module(s). Expansion units contain additional storage devices on the same SCSI buses.

The 24-SBB RAID Array 8000 storage subsystem and the ESA12000 storage

•

subsystem are Class A FCC certified

EK–SMCPR–UG. A01 387404-001 1–5

RA8000 and ESA12000 Storage Subsystems

1.2 Major Components

A fully configured redundant subsystem (Figure 1-4) consists of the following major components:

1) A BA370 Rack mountable enclosure (1)

2) Cooling Fan (8)

3) Single-Ended I/O Modules (6)

4) Optional Fibre Channel or UltraSCSI Hub (12-port Fibre Channel Hub shown)

5) Cache module (2)

6) HSG80 Fibre Channel RAID Array controllers (2) or HSZ80 SCSI RAID Array Controllers (2)

7) Power Verification and Addressing (PVA) Module (1)

8) Environmental Monitor Unit (EMU) (1)

9) AC Input Power Controllers (1 standard, 2 shown in Figure 1–4)

10) 180-watt power supply (5 standard, 8 shown in Figure 1-4)

11) External Cache Battery (ECB), single External Cache Battery (ECB), dual

Also, Power Distribution Unit (2)

Not shown, mounted in ESA12000 cabinet only

1–6 387404-001 EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–4 Configured BA370 Rack Mountable Unit Major Components

CXO6568A

EK–SMCPR–UG. A01 387404-001 1–7

RA8000 and ESA12000 Storage Subsystems

1.2.1 Array Controllers

Either an HSG80 Fibre Channel array controller or an HSZ80 UltraSCSI array controller can be used. The array controller presents the storage devices to the host system as another device connected to one of its I/O buses. The array controller then processes the I/O requests to the storage devices of the subsystem. The array controller(s) mount in the lower front of the cabinet (see Figure 1-5 for HSG80 and Figure 1-6 for the HSZ80). Installing two array controllers with cache modules provides complete array controller redundancy as described in either the

Maintenance and Service Guide Maintenance and Service Guide

Array controllers and cache modules removed from array controller card cage for clarity in Figures 1-5 and 1-6. Modules are not a single unit.

Figure 1–5 HSG80 Array controller and Cache Modules

Controller Card Cage

HSG80 Array Controller ACS Version 8.3

HSZ80 Array Controller ACS Version 8.3

NOTE

Controller Shelf or Enclosure

Array Controller Modules

Cache Modules

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Chapter 1. Product Description

Figure 1–6 HSZ80 Array controller and Cache Modules

Controller Card Cage

Controller Shelf or Enclosure

Array Controller Modules

Cache Modules

SHR-1146

The array controller documentation describes procedures for:

•

Configuring the array controller

•

Setting initial array controller parameters using a maintenance terminal

•

Determining the proper method for replacing SBBs

The array controller software revision level determines the devices supported by the array controller.

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RA8000 and ESA12000 Storage Subsystems

1.2.2 SCSI Buses

There are six Ultra Wide SCSI buses associated with the array controller. The ports and device addresses for the master unit are shown in Figure 1-7.

Figure 1–7 SCSI Buses

Port/ Bus 2

Port Bus 4

Port Bus 6

ID3

ID2

ID1

Typical Backplane Connection

ID0

ID6 ID7

Port/ Bus 1

Port/ Bus 3

Device Address 3

Device Address 2

Device Address 1

Device Address 0

Device Address 6 Device Address 7

Port/ Bus 5

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Chapter 1. Product Description

The subsystem enclosure supports single-ended, Ultra Wide storage devices. The configuration rules for the SCSI buses are as follows:

All devices and ports in the same column are on the same SCSI bus or port

•

All devices in the same row (device shelf) have the same device address

•

You may only install array controller-compatible Ultra Wide storage SBBs

•

Device addresses 4 and 5 are only used when the SBB has a device address switch

•

Device addresses are determined by the backplane connector into which the device is

•

inserted unless the SBB has a device address switch

1.2.3 Single-Ended I/O Module (SE I/O)

Figure 1–8 Single-Ended I/O Module Location

I/O Modules

SHR-1148

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Each SCSI enclosure, whether it is a master or an expansion enclosure, has six I/O modules mounted at the bottom rear of the enclosure as shown in Figure 1-8. In all enclosures these modules are the interconnection point between the array controller in the master enclosure and the devices in the expansion enclosures. In an UltraSCSI RAID subsystem, the I/O modules, the internal SCSI buses, and the array controller ports all have the same number. For example, array controller port 2, SCSI bus 2, and I/O module 2 are different elements of the same bus. Figure 2–34, Chapter 2, identifies the six I/O port numbers at the bottom of the enclosures. The major features of the single-ended I/O module are described in the following sections.

1.2.3.1 Expanding the UltraSCSI Bus

Each I/O module has an UltraSCSI single-ended bus expansion integrated circuit. This device isolates the internal and external SCSI bus and extends the length of the SCSI bus.

Figure 1–9 Single-Ended I/O Module

External TERM POWER disable LED

Internal TERM POWER disable LED

CXO5947A

The two VHDCI female connectors are the connection points for expanding the SCSI buses between enclosures (see Figure 1-9). These connectors are wired in parallel and act as a tri-link connector. In an expansion configuration, Compaq recommends that maximum cable length not exceed 1.5 m (4.6 ft.) between enclosures. Compaq supplies a cable kit, DS-BNK37-IE, containing the necessary cables to connect an expansion unit.

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Chapter 1. Product Description

1.2.3.2 Controlling the Internal SCSI Bus

The I/O module controls the internal SCSI bus in the following manner:

Isolates the internal SCSI bus from the external SCSI bus.

•

Provides single-ended SCSI bus termination.

•

Disconnects the internal SCSI bus from the external SCSI bus when the EMU so

•

directs. Distributes TERMPOWER (+5 V dc) to the internal SCSI bus.

•

Turns ON the green internal TERMPOWER LED (see Figure 1-9) when the internal

•

TERMPOWER is present. Turns OFF the green internal TERMPOWER LED (see Figure 1-9) when there is an

•

internal TERMPOWER overcurrent condition.

1.2.3.3 Controlling the External SCSI Bus

The I/O module controls the external SCSI bus in the following manner:

Provides single-ended SCSI bus termination.

•

Distributes TERMPOWER (+5 V dc) to the external SCSI bus.

•

Turns ON the green external TERMPOWER LED (see Figure 1-9) when the external

•

TERMPOWER is present. Turns OFF the green external TERMPOWER LED(see Figure 1-9) when there is an

•

external TERMPOWER overcurrent condition. Automatically disables the external bus termination when a cable is connected to the

•

right hand VHDCI connector.

1.2.3.4 Controlling the Fault Bus

The I/O module controls the fault bus operation in the following manner:

Provides a fault bus driver for improved signal transmission.

•

Distributes the FAULT_CLK and FAULT_DATA signals from the master enclosure

•

to the expansion enclosures. Distributes the SHELF_OK and SWAP_L signals from the expansion enclosures to

•

the master enclosure.

1.2.3.5 “Warm Swapping” I/O Modules and Cables

You can replace either the I/O module or a cable when the associated SCSI bus is quiesced (no data transfers occurring) – a warm swap. This enables you to correct problems affecting only one bus without disrupting data transfers on the other five buses.

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1.2.3.6 Maximum Bus Length

The maximum bus length, including external cables (distance from the I/O module terminator to the last terminator on the bus) is a function of the bus speed and the number of devices. If the external bus is configured point to point (from SE I/O module-to-SE I/O module with no devices installed in between), the cables may be extended to 20 meters due to the isolation and re-timing circuitry of the SE I/O module.

1.3 Error Detection and Reporting

The subsystem error detection and reporting function has two major elements – the fault bus and the EMU (environmental monitor unit). For a detailed discussion of error detection, fault reporting, and correction, refer to Chapter 4, Error Analysis and Fault Isolation.

1.3.1 Fault Bus

The subsystem fault bus monitors subsystem operation and reports fault conditions to either the HSG80 or the HSZ80 array controller and the EMU. The array controller and EMU then report the error condition to the user. The fault bus monitors the following conditions:

Blower failure (SHELF_OK)

•

Power supply failure (SHELF_OK)

•

Storage device removal (SWAP_L)

•

Storage device installation (SWAP_L)

•

SBB failure (FAULT_CLK, FAULT_DATA)

•

The fault bus consists of three subsystem backplane signals routed to the array controller port connectors as follows:

•

Shelf Status Signal

power (ac and dc) and blower operation

•

SBB Swap Signal

inserted in the subsystem

•

SBB Fault Signals

indicates a device fault. This device fault LED is controlled by the fault clock (FAULT_CLK) and the fault data (FAULT_DATA) control signals.

– The SHELF_OK status signal indicates the state of subsystem

– The SWAP_L signal is asserted whenever an SBB is removed or

– The SBB amber LED displays either the storage address or

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Chapter 1. Product Description

1.3.2 Environmental Monitor Unit (EMU)

The primary function of the EMU (see Figure 1-10) is to monitor, process, report, and display enclosure and array controller environmental status information for the power supplies, temperature, blowers, configuration, SCSI addressing, I/O modules, communications, and the EMU microcode version. The EMU and array controller can exchange and process this information.

CAUTION

Proper operation of a storage subsystem requires an operational EMU and PVA in each BA370 rac k mountable enclosure. You must also establish communications links between the EMUs to ensure proper subsystem operation and error reporting.

1.3.2.1 EMU Front Panel

The EMU front panel contains all of the user interface controls, connectors, and displays (see Figure 1-10 and Table 1-1).

Figure 1–10

Environmental Monitor Unit (EMU)

EMU COMMUNICATIONS CONNECTOR

SYSTEM FAULT LED AND ALARM CONTROL SWITCH

EMU MAINTENANCE CONNECTOR

EMU COMMUNICATIONS CONNECTOR

BLOWER FAULT LED(S)

POWER STATUS LED

TEMPERATURE FAULT LED

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RA8000 and ESA12000 Storage Subsystems

Table 1–1 EMU Front Panel Component Descriptions

Component Function

EMU Com. Connector

Provides inter-EMU communications. (LEFT ) System Fault LED (amber) and Alarm Control Switch

The System Fault LED in the Alarm Control Switch is

ON whenever there is an error condition.

This LED is FLASHING whenever the EMU has one

or more fault codes to display.

When there is a fault code, momentarily pressing this

switch turns OFF the audible alarm and starts the

fault code LED display.

Pressing the Alarm Control switch for at least 5

seconds clears all the active fault codes.

After a controlled power shut down, momentarily

pressing this switch will restore power to the

enclosure. Temperature Fault LED (amber)

Whenever either the ambient temperature or the

enclosure backplane temperature exceeds the user-

defined temperature set point, this LED is ON until

the condition is corrected. Power Status LED (green)

This LED is ON whenever there are:

At least four operational +5 V dc power supplies

At least four operational +12 V dc power supplies

TERMPOWER is present on all six I/O modules

This LED is OFF whenever there are:

Fewer than four operational +5 V dc power supplies

Fewer than four operational +12 V dc power supplies

One or more I/O modules are missing

TERMPOWER EMU Maintenance Connector

You can connect a maintenance terminal or PC to

this connector to display EMU:

Error messages

Information messages

A PC can also load EMU microcode through this

connector. Blower Fault LEDs (amber)

One or more of these eight blower fault LEDs are

ON whenever one or more blowers are:

Not operating

Not operating at the correct speed.

Removed

There is a fault code display EMU Com. Connector

Provides inter-EMU communications.

(RIGHT)

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Chapter 1. Product Description

1.3.2.2 Array Controller Status

The master EMU also monitors the state of both array controllers. Should the EMU detect an array controller fault it can:

Sound the audible alarm

•

Cause the EMU system fault status LED to flash

•

Display an array controller fault code on the blower LEDs when you momentarily

•

press the Alarm Control switch

When an error is detected on the EMU array controller communications path, it causes an array controller fault.

1.3.2.3 I/O Module Status

The EMU also ensures that all six I/O modules are present, are properly installed, and that each has TERMPOWER. If any of these conditions are not met, the EMU reports an error condition to the array controller(s). The EMU also reports each I/O module type to the array controller. Should an array controller determine that the I/O module configuration is incorrect, it displays this information on the console.

An integrated circuit on each I/O module functions as an UltraSCSI bus extender. The EMU and the array controller can enable or disable individual I/O module circuits, thereby controlling individual external SCSI buses.

1.3.2.4 Enclosure Configuration Information

The EMU maintains the following configuration information:

Enclosure number

•

EMU microcode version

•

EMU message protocol version

•

PVA SCSI ID setting

•

Temperature sensor set points

•

The number of installed power supplies by location

•

The number of installed SBBs by location

•

The number of installed blowers by location

•

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RA8000 and ESA12000 Storage Subsystems

1.3.3 Power Verification and Addressing (PVA) Module

Proper operation of the subsystem, whether it be a master or an expansion enclosure, requires both a PVA module and an EMU module. The PVA (Figure 1-11) and its associated EMU ensures that all major UltraSCSI components are functioning properly. When an error condition occurs, these modules notify the user that a problem exists. The array controller identifies the specific problem. The PVA and EMU LED displays identify possible causes of the problem.

The PVA mounts in the lower right section of the enclosure, directly above the array controller. The PVA and EMU have the same physical dimensions, use the same type connectors, and are mounted next to each other – the EMU on the left and the PVA on the right (see Figure 1-4). They are not interchangeable.

Figure 1–11 Power Verification and Addressing (PVA) Module

As shown in Figure 1-11, the major user-accessible components of the PVA include the following:

The dc power shutoff switch which includes a green power status LED

•

The UPS connector (RJ-45) for future UPS monitoring capability

•

The enclosure SCSI address switch that establishes the enclosure address and thereby

•

the SCSI bus IDs for each storage device

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Chapter 1. Product Description

The PVA has two status indicators:

The green power status LED in the power shut down switch. This LED is ON

•

whenever there at least four operational power supplies. When an error condition occurs, the LED is OFF and the PVA reports the error to the EMU. The EMU also monitors the power supplies for this condition

An audible alarm that beeps at a slow rate when the PVA detects removal of or

•

improper installation of the EMU. This ensures you are aware the EMU must be replaced within 8 minutes to prevent a system shut down

The primary functions of the PVA include the following:

1) Ensures that there is a minimum of four operational power supplies in the enclosure. If the PVA senses less than four power supplies, it notifies the EMU.

2) Allows the user to select the Compaq-supported device SCSI bus addresses for the master and each expansion enclosure.

3) Monitors the EMU status and:

Notifies the user of removal of the EMU

•

Notifies the user when there is no master EMU

•

Notifies the user when there are multiple master EMUs

•

Provides the user a switch to disconnect dc power from the enclosure power

•

buses Monitors the optional UPS for proper operation and reporting the UPS status (a

•

planned future capability)

1.3.3.1 Monitoring Power Supply Operation

For accurate, reliable transfer of data without data corruption or loss, the enclosure requires a minimum of four operational power supplies to furnish both +5 and +12 Vdc for operation of the following:

Storage Devices (SBBs)

•

Array controllers and cache memories

•

EMU

•

PVA

•

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RA8000 and ESA12000 Storage Subsystems

Therefore, both the EMU and PVA monitor all of the power supplies (a maximum of eight) to ensure that at least four are operational. An error condition is indicated by one of the following conditions:

The +5 Vdc voltage drops to +4.7 Vdc

•

The +12 Vdc voltage drops to 11.4 Vdc

•

Another voltage essential for proper operation is the +5 Vdc termination power (TERMPOWER) required for the SCSI bus on each of the six I/O modules. If this voltage drops to +4.7 Vdc, an error condition exists.

As long as there are four operational supplies and TERMPOWER is correct, the EMU and PVA generate the POK (power OK) signal. As long as POK is present the array controller can continue to transfer data providing there are no other error conditions.

The loss of the POK signal for any reason causes the array controller to shut down and halt all data transfers. All six buses remain quiesced (no data transfers occurring) until the array controller determines that power is correct. The array controller does this by checking the status of the POK signal. Until the POK reports that there are at least four operational power supplies and that TERMPOWER is correct, the array controller, the cache memories, and all the devices remain passive. The EMU and the PVA continue to monitor the system and report the error condition.

1.3.3.2 Master Enclosure Controlled Power Shutdown

The EMU can shut down the dc power in the master enclosure or the subsystem when one of the following conditions occur:

The EMU determines an extreme over-temperature condition that requires removing

•

power from the subsystem The user presses and holds down the PVA dc power switch until the EMU initiates a

•

controlled power shut down

NOTE

This proc edure will only work when the array has been s hut down.

When you initiate a controlled power shut down from the master enclosure PVA the sequence of events is as follows:

1) The EMU changes its status to indicate that the dc power switch was pressed

2) The master EMU notifies the array controller of the change in status.

3) When the array controller is ready, it sends a controlled power shutdown command to the master EMU.

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Chapter 1. Product Description

4) A controlled power shut down is completed on all the subsystem cabinets.

NOTE

If the master EMU is not communicating with the array controller or the array controller does not support a controlled shut down, the master EMU commands all enclosures to perform an immediate power shut down.

1.3.3.3 Expansion Enclosure Initiated Power Shut Down

NOTE

This proc edure will only work when the array controller(s) have been shut down.

When you press the PVA dc power switch on the expansion enclosure and the expansion EMU

communicate with the master EMU, one of the following power shut down

can

operations occurs:

NOTE

When the expansion EMU master EMU, pressing the dc power switch causes an immediate controlled power shut down of only the expansion enclosure.

cannot

communicate with the

1. The slave EMU changes its status to indicate that the dc power switch was pressed.

2. The master EMU notes the change in status.

3. The master EMU notifies the array controller of the change in status.

4. When the array controller is ready, it sends a controlled power shut down command to the master EMU.

5. A controlled power shut down is completed on all the subsystem cabinets.

NOTE

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RA8000 and ESA12000 Storage Subsystems

1.4 Storage Device SBBs

The BA370 can accommodate up to twenty-four 3½-inch storage device SBBs (Figure 1–12). Each occupies one slot (six SBBs per shelf). The SCSI device addresses of the SBBs can be assigned in the following ways:

By the backplane connector

•

With the SCSI device address switch mounted on the rear of the SBB

•

The HSG80 and the HSZ80 array controllers software product descriptions and release notes list the subsystem compatible SBBs.

Figure 1–12 Disk Drive SBB

DEVICE ACTIVITY (GREEN)

DEVICE FAULT (AMBER)

1.5

Power Configuration

There are two primary storage subsystem power configurations:

•

Standard

power supply SBBs on power bus

•

Redundant

power supply SBBs on power bus SBBs on power bus

– 4 + 1 power configuration includes one ac power controller and five

– 4 + 4 power configuration includes one ac power controller and four

one ac power controller, and four power supply

When there are less than four operational power supplies, the subsystem will cease operating to preserve and protect the data. Table 1-2 lists the storage subsystem power components and configurations.

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Chapter 1. Product Description

CAUTION

A minimum of four operational SBB power supplies are required for operation of the subsystem. The fifth SBB power supply provides redundancy.

Table 1–2 Storage Subsystem Major Power Components

Component Order No. Power Configurations

ac Power Entry

DS-BA35X-HE 1 2

Standard

Redundant

Controller Shelf Power Supply

DS-BA35X-HH 5 8

SBB

1.5.1 AC Power Entry Controllers

The ac input power is routed from the wall outlet to one of the power entry controllers (Figure 1-13) that may have either of the following input voltages:

100 – 120 V ac, 60 Hz, single-phase, 12A

•

220 – 240 V ac, 50 Hz, single-phase, 6A

•

Each power entry controller has a system ON/OFF switch and distributes ac power to all power supply SBBs on either power bus A or power bus B.

Figure 1–13 AC Power Entry Controller

AC Power Switch

Fuse

AC Receptacle

SHR-1150

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RA8000 and ESA12000 Storage Subsystems

1.6 Power Supply SBBs

CAUTION

The subsystem requires power supply SBBs rated for at least 180 W s uch as the DS-BA35X-HH. You cannot use lower rat ed supplies, suc h as the 131 W (DS-BA35X-HA) , the 145 W (DS-BA35X-HD), or the 150 W (DS-BA35X-HF).

The 180 W shelf power supply SBB (Figure 1-14) converts the ac voltage from the power controller to +5 V dc and +12 V dc for distribution throughout the storage subsystem. The maximum capacity of the storage subsystem is eight power supplies.

Figure 1–14 Typical Shelf Power Supply SBB

Power Status LED (Green)

Power Supply Status LED (Green)

SHR-1151

The 4 + 1 standard configuration provides five power supplies connected to power bus A (the black power cords). As long as any four of these supplies are operational, the subsystem is operational. The failure of a second supply places the subsystem array controller in a reset state. This precludes further data processing and prevents the corruption or loss of the stored data.

With the 4 + 4 full redundant power option, the subsystem can survive multiple power supply faults. To fully realize the benefits of the 4 + 4 configuration, connect the ac power entry controllers to different ac distribution circuits on the same site distribution panel. The four subsystem power supply SBBs on the left end of the shelf are connected to ac power entry controller A. The four on the right end of the shelf are connected to ac power entry controller B.

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Chapter 1. Product Description

1.7 Standard (4 + 1) Power Configuration

NOTE

The black power cord at the upper right corner of the subsystem is used only for the standard (4 + 1) configuration. It is not used for the redundant (4 + 4) configuration.

This standard power configuration (Figure 1-15) is the minimum configuration Compaq recommends. If a power supply SBB fails you might be able to replace it before a second fails. The standard power configuration has the following components:

5 – power supply SBBs

•

1 – ac power entry controller

•

Any one of the following errors will cause the subsystem to cease operation:

Failure of two power supply SBBs

•

Failure of the ac power entry controller

•

Failure of the ac power source

•

Failure of the PDU (ESA12000 only)

•

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RA8000 and ESA12000 Storage Subsystems

Figure 1–15 Standard Power Configuration (4 + 1)

Power Controller A

SHR-1153

1.8 Redundant (4 + 4) Power Configuration

A full redundant power configuration requires two separate power sources, two ac entry power controllers, and eight shelf power supplies (Figure 1–16). Compaq recommends this configuration to provide complete power system redundancy. Any one of the following error conditions will cause the subsystem to cease operation:

•

Failure of five power supply SBBs

•

Failure of both ac power entry controllers

•

Failure of both ac power sources

•

Failure of both PDUs (ESA12000 only)

The primary ac source provides power to ac power entry controller A, which distributes the ac power through the four black power cords to the four power supply SBBs on the left end of each shelf.

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Chapter 1. Product Description

The second, or redundant, ac source provides power to ac power entry controller B. The four power supply SBBs on the right end of each shelf are connected to power bus B with the four gray power cords.

Figure 1–16 Redundant Power Configuration (4 + 4)

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RA8000 and ESA12000 Storage Subsystems

1.9 ECB SBBs

The external cache battery (ECB) SBB provides power to the RAID array controller cache module if system power fails. The cache module in turn provides power to the ECB during normal operation. Compaq supplies two versions of ECBs: a single-battery ECB for single-array controller configurations and a dual-battery ECB for dual-redundant array controller configurations. Each battery has a power connector, status LED, and battery disable switch (see Figure 1–17).

To check the ECB status, look at the battery status LED (one for each cache module) for the appropriate indication (see Figure 1–17 and Table 1–3).

Figure 1–17 Dual-Battery ECB SBB

Status LED

Battery Disable Switch

Power Connector

Status LED

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Battery Disable Switch

SHR-1154

Table 1–3 ECB Status Indications

LED Status Battery Status

System power is on and the ECB is fully charged.

System power is on and the ECB is charging.

System power is off and the ECB is supplying power to the cache.

System power is off and the ECB is not supplying power to the cache.

LEGEND

Chapter 1. Product Description

=Off

= On

= Blink fast

= Blink slow

In the RA8000, the ECB SBB is mounted at the top of the pedestal. In an ESA12000 cabinet, the ECB SBB is mounted in the middle front of the cabinet between the BA370 enclosures. A Y-cable connects the ECB to the array controller cache module. The cache is mounted under the array controller and is identified by the single plug in the middle of the module (Figure 1–18). Cache module to ECB cables are factory installed.

CAUTION

The ECB cable i s c onfigur ed in a “Y” to allow c onnect ion to a new battery without interrupting power to the cache module. The cable is only to be used to connect ONE battery to ONE cache modul e. Do not c onnect bot h ends of the ECB “Y” cable at the s ame time exc ept when replac ing ECBs. See chapt er 5 of this manual f or ECB replacement instructions.

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RA8000 and ESA12000 Storage Subsystems

Figure 1–18 Cache-to ECB-Connection

External cache battery

Unconnected

Cache module

CXO5928A

1.10 Subsystem Cooling

As shown in Figure 1–19, the subsystem is equipped with eight dual-speed blowers. These blowers pull air in from the front of the cabinet, through the SBBs, array controllers, EMU and PVA, and exhaust it out the rear. Backplane connectors provide +12 V dc to operate the blowers and route the blower status signals to the shelf backplane and the EMU.

The EMU may be set to automatically increase fan speed or set to a constant fanspeed of high. Refer to the either the HSG80 Array Controller ACS Version 8.3 Configuration and

CLI Reference Guide or HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide for the set_emu commands.

If set for automatic, the EMU switches all operational blowers from low-speed to highspeed when one or more of the following conditions occur:

• When a blower is removed

• When a blower malfunctions

• When a blower is not rotating at the right speed

• When the EMU detects an over-temperature condition

When the fault condition is corrected, the EMU returns the blowers to low speed.

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Figure 1–19 Dual Speed Blower Locations

Bank 2

Blower 5

Chapter 1. Product Description

Bank 1

Blower 1

Blower 6

Blower 7

Blower 8

Blower 2

Blower 3

Blower 4

SHR-1156

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1.11 Setting the PVA SCSI Address

The SCSI bus address switch on the front of the PVA module (see Figure 1-20) controls the SCSI address (device ID) of each storage device in the enclosure. The following configuration rules (restrictions) apply in establishing the PVA SCSI bus address:

1) The master PVA address is always 0. There is only one master PVA in any subsystem installation.

2) The first expansion cabinet (if used) address is 2. The second expansion cabinet (if used) address is 3. In an expansion subsystem, no two enclosures can have the same address.

3) Compaq does not support any PVA address that assigns SCSI bus device addresses 6 or 7 to any storage device.

4) Compaq does not support any combination of PVA addresses that assign the same SCSI bus device address to more than one device on any SCSI bus.

Figure 1–20 PVA SCSI Address Switch

Decrease Switch

Increase Switch

SHR-1157

To decrease the configuration number: Press the upper switch to step the address down one address at a time (decrement) until

the preferred configuration number is displayed. To increase the configuration number: Press the lower switch to step the address up one address at a time (increment) until the

preferred configuration number is displayed.

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1.11.1 Compaq Supported Master PVA Address

Compaq supports PVA address “0” only for the master enclosure. Figure 1–21 defines the SBB device IDs for a master enclosure, first expansion, and second expansion units. The device addresses are denoted to the right of Figure 1–21.

Figure 1–21 Enclosure SCSI Bus Addresses for all SBB Device IDs

SCSI Bus 2

SCSI Bus 1

ID3

ID2

ID1

Typical Backplane Connection

ID0

SCSI Bus 3

SCSI Bus 4

SCSI Bus 6

SCSI Bus 5

Device Address 3/11/15

Device Address 2/10/14

Device Address 1/9/13

Device Address 0/8/12

PVA Address 0/2/3

Device Address 7

ID7 ID6

EMU

PVA

Device

Cache module Cache module

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Address 6

CXO5889A

RA8000 and ESA12000 Storage Subsystems

1.11.2 Compaq Supported Expansion PVA Addresses

Compaq only supports PVA addresses 2 and 3 for expansion enclosures. Figure 1-20 defines the SBB device IDs for these two settings of the PVA SCSI bus address switch, respectively. The use of these addresses in combination depends on the number of enclosures and possible addressing conflicts.

CAUTION

Compaq does not support any PVA address combination not listed in Table 1-4.

Table 1–4 Expansion Enclosure Address Combinations

Enclosure PVA Address Switch

Setting for Two BA370 Rack Mountable units

Master

First Expansion Unit

Second Expansion Unit

N/A 3

PVA Address Switch Setting for Three BA370 Rack Mountable units

1.11.3 Non-Supported PVA SCSI Bus Addresses

Compaq

•

does not

Address 1

Address 4

Address 5

Address 7

This PVA address assigns addresses already assigned to the master enclosure.

support the following PVA SCSI bus addresses:

This PVA address assigns array controller SCSI bus device addresses 6 and 7 to storage devices.

This PVA address assigns addresses already assigned to the master enclosure.

This PVA address assigns array controller SCSI bus device addresses 6 and 7 to storage devices.

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Installing the RA8000 and ESA12000

Storage Subsystems

This chapter describes the site preparation and installation procedures for the RA8000 and ESA12000 Storage Subsystems. I t also describes how to install options in the ESA12000. The chapter also contains ESA12000 expansion cabinet cabling instructions and an FRU list.

2.1 Installing the RA8000

2.1.1 RA8000 Site Preparation

The RA8000 storage cabinet is designed for installation in a Federal Communications Commission (FCC) Class A environment. Before installing the storage cabinet, make sure that adequate space is available in front of the cabinet for opening the front door (19 inches clearance) and around the cabinet for adequate airflow. See Figure 2–1 for specific space requirements.

Figure 2–1 RA8000 Minimum Installation Clearance Measurements

482.60 mm (19.00 in)

DS-SWXRA-Hx

Front

Door

EK–SMCPR–UG. A01 387404–001 2–1

539.75 mm (21.25 in)

482.60 mm (19.00 in)

SHR-1158

RA8000 and ESA12000 Storage Subsystems

2.1.2 Placing the RA8000 Storage Enclosure

Use the following procedure to move the storage cabinet to its designated site:

WARNING

Provide a cl ear path for the cas ters to prev ent damage to the cabinet and injury to personnel.

1. Roll the subsystem cabinet to the desired location.

2. Engage the locks on the front casters to prevent the cabinet from moving.

2.1.3 Connecting the Subsystem to the Host

Refer to Sections 2.4.3 and 2.4.6 in this chapter and to the platform-specific host adapter and host system documents for information describing how to install the adapter and make subsystem cable connections.

2.2 Installing the ESA12000

2.2.1 Site Preparation

Before installing the ESA12000, ensure that adequate space is available in front and in back of the enclosure for opening the front and back doors. Also make sure there is adequate space around the enclosure for adequate airflow. See Figure 2–2 for specific space requirements.

Figure 2–2 Minimum Installation Clearance Measurements

595 mm (23.4 in)

544 mm

Rear door

Front door

ESA12000

cabinet

(Top view)

(21.4 in)

917 mm (36.1 in)

542 mm (21.3 in)

2002 mm (78.8 in)

CXO6669A

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Chapter 2. Installing the RA8000 and ESA12000

2.2.2 Moving the ESA12000 to It’s Designated Site

Figure 2–3 shows an ESA12000 Storage Subsystem containing two BA370 Enclosures.

Figure 2–3 ESA12000 Storage Subsystem

WARNING

Use extreme caution when rolling the cabinet across the floor. Failure to raise all lev eler feet and to pr ovide a clear path for the cabinet's casters may result in the cabinet tipping over and injury to personnel.

CXO6618A

Once the cabinet rack space is configured as desired, the cabinet may be rolled to its final installation position. Secure loose cabinet cables up and out of the way when rolling the cabinet. Use the following procedure to move the ESA12000 to its designated site:

1. Roll the cabinet to the desired location.

2. To level the cabinet, perform the following steps:

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RA8000 and ESA12000 Storage Subsystems

If you plan to join an expansion cabinet to the master cabinet, do not lower the levelers at this time.

a) Loosen the locknuts on each leveler foot as shown in Figure 2–4. b) Turn each leveler hexnut clockwise until the leveler foot contacts the floor. c) Adjust each leveler foot until the cabinet is level and the load is removed from

all casters. Verify that the casters spin freely.

d) Tighten the locknuts on each leveler foot.

Figure 2–4 Leveler Foot Adjustment

Locknut

Leveler Hex Nut

NOTE

Leveler Foot

SHR-1159

2.2.3 Joining Adjacent ESA12000s

A cabinet joiner and trim kit is included with the ESA12000 expansion cabinet (DSSWXES-LA/B or DS-SWXES-TA/B). Use the joiner kit to join two ESA12000 cabinets together to expand the storage capacity of your subsystem. Refer to the joiner and trim kit instructions (Joiner Kit Installation Information, Document Part No.: EK–JOINR–IN. D01) supplied with the cabinet.

After two cabinets have been joined, refer to Section 2.4.7 of this guide for cabling instructions describing how to connect the components in the master cabinet to the components in the expansion cabinet.

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Chapter 2. Installing the RA8000 and ESA12000

2.2.4 SW42U Cabinet Rack Mount Template

If your data center cabinet is a Compaq 42U cabinet rack, use the rack mount template supplied with the rack-mountable enclosure to select the correct mounting holes along the side rails of the cabinet.

2.3 BA370 Major Components

Figure 2–5 shows the major components in a ESA12000 subsystem. The configuration shown consists of one rack-mountable BA370 which contains 24 disk drive SBBs and a single ECB (external cache battery).

Figure 2–5 ESA12000 Subsystem Major Components

CXO6673A

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RA8000 and ESA12000 Storage Subsystems

ESA12000 Major Components (Figure 2–5):

1) HSG80 Fibre Channel RAID Array controllers (2) or HSZ80 SCSI RAID Array Controllers (2)

2) Environmental Monitor Unit (EMU) (1)

3) AC Input Power Controllers (1 standard, 2 shown in Figure 2–5)

4) Disk Drive SBB (24)

5) 180-watt power supply (5 standard, 8 shown in Figure 2–5)

6) External Cache Battery (ECB), single External Cache Battery (ECB), dual

7) Cooling Fan (8)

8) Single-Ended I/O Modules (6)

9) Power Verification and Addressing (PVA) Module (1)

10) Cache module (2)

Also, Power Distribution Unit (2)

Not shown, mounted in ESA12000 cabinet only

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Chapter 2. Installing the RA8000 and ESA12000

2.3.1 Installing Storage Building Blocks (SBBs)

This section describes the procedures for installing SBBs into a BA370 Enclosure. An SBB can contain disk drives, power supplies, and one or two external cache battery (ECB).

2.3.1.1 Installing Disk Drive SBBs

Additional disk drive SBBs may be installed into the BA370. You may install array controller-compatible 16-bit disk drive SBBs.

Recommended procedure for installing disk drive SBBs is to install them starting in the lower left corner in shelf 1 and advancing to the right. Then starting from the left, install all the drives in shelf 2. Continue using the same procedure for shelves 3 and 4. Installing the disk drive SBBs in this sequence distributes the SBBs evenly among the SCSI ports of the ESA12000. Install 18 giga-byte drives first, followed by 9 giga-byte drives. Install 4 giga-byte drives last.

To install an disk drive SBB, hold it in both hands, insert the disk drive into the designated guide slots and firmly push the disk drive into the shelf until the mounting tabs snap into place.

Additional rules for configuring SCSI buses include:

1. All devices and ports in the same column are on the same SCSI bus or port.

2. All devices in the same row (device shelf) have the same device address.

3. Device address 4 and 5 are used only when the Disk Drive SBB has a device address switch.

4. Device addresses are determined by the backplane connector into which the device is inserted unless the SBB has a device address switch.

5. For the addressing of disk drive SBBs on the SCSI bus, device addresses for each SBB in each expansion cabinet are determined by the PVA address. The main cabinet’s PVA address is set to PVA address 0. Device addresses in that cabinet have addresses 0 through 3. The PVA address in the first expansion cabinet is set to PVA address 2 and device addresses in that expansion cabinet have addresses 8 through 11. The PVA in the second expansion cabinet is set to PVA address 3 and device addresses for that expansion are from 12 through 15. Figure 2–6 helps to illustrate the addressing scheme.

Figure 2–6 shows the six 16-bit SCSI buses and their associated ports and device addresses. Refer to the

Chapter 3, Configuration Rules and Restrictions,

AA Office Expansion RAID Enclosure User Guide, EK–SMCPD–UG

information on installing disk drive SBBs.

of the

SWXSC–

, for additional

EK–SMCPR–UG. A01 387404–001 2–7

RA8000 and ESA12000 Storage Subsystems

Figure 2–6 SCSI Buses, Associated Ports, and Device Addressing

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Chapter 2. Installing the RA8000 and ESA12000

2.3.1.2 Installing Power Supply SBBs

Each power supply SBB has two green status LEDs. The upper LED indicates ac power status and the lower LED indicates power supply status. The procedure for installing power supplies is basically the same for installing any SBB. Refer to Figure 2–7 during the installation.

Figure 2–7 Installing SBB Power Supply (n+1 Shown)

SBB power supply

AC power controller

CXO5930A

1. Insert the power supply SBB into the guide slots and push in until the power supply is fully seated and the mounting tabs are engaged into the shelf.

2. Connect the power cord to the power supply SBB.

3. If ac power is off, turn

the ac power entry controller.

4. Observe the power supply SBB LEDs. Both LEDs should be lit, indicating proper power supply operation on the associated bus.

If the upper LED is not lit after installation this indicates that the power supply is not functioning properly and needs to be replaced. If both status LEDs are not lit after the installation, either there is a lack of ac power, the ac power entry controller has failed, or the power supply SBB just installed has failed.

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RA8000 and ESA12000 Storage Subsystems

2.3.1.3 Installing the AC Input Power Entry Controller

There are no external indications of a power controller failure on the ac power entry controller itself. Both status LEDs on the power supply being off indicates a possible power entry controller failure. Use the following procedure to install a new ac power entry controller. See Figure 2–8.

Figure 2–8 Installing an AC Input Power Entry Controller

SBB power supply

AC power controller

CXO5930A

1. Press 0 on the ac power entry controller ON/OFF switch.

2. Insert the ac power entry controller into the BA370 enclosure.

3. Tighten the two retaining screws at the top and bottom of the ac power entry controller.

4. Connect the ac power cord to the ac power entry controller.

5. Press 1 on the ac power entry controller ON/OFF switch.

6. Observe the power supply status LEDs for proper operation.

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Chapter 2. Installing the RA8000 and ESA12000

2.3.2 Installing the External Cache Battery (ECB)

Install the ECBs into the into the ECB shelf of the ESA12000 or at the top of the RA8000 pedestal. Figure 2–9 shows the location of the ECB shelf in the ESA12000.

Figure 2–9 ECB Shelf Location in the ESA12000

ECB

CXO6670A

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RA8000 and ESA12000 Storage Subsystems

2.4 Installing Additional Components (Options)

The following sections describe the procedures for installing additional components into the ESA12000 data center cabinet. The options available for the ESA12000 subsystem are as follows:

•

BA370 Universal Mounting Kit (DS-BA370-XB)

– Provides the components needed to add an expansion enclosure to increase the storage capacity of your subsystem installation. One or two BA370 enclosures can be installed in a cabinet

•

UltraSCSI Hub Shelf Mounting Kit (BA35X-RK)

– Provides components to mount

a BA356 shelf into the cabinet. The hubs are installed in the BA356

•

External Cache Battery (ECB) Mounting Kit (DS-SW4XU-2U)

– Provides a midcabinet mounting shelf to support one or two ECB SBBs for the controller cache modules

•

Fibre Channel (FC) Hub Mounting Kit

– Installs mounting brackets to support the

FC 12-port hub

•

Filler Panel Mounting Kit (DS-SW41U-XK)

– Contains blank panels to fill empty

slots in the ESA12000 cabinet

2.4.1 Installing BA370 Universal Mounting Kit DS-BA370-XB

You may wish to install one or two BA370 rack-mountable enclosures into your SW41U or SW600 cabinet to expand the storage capacity of your subsystem. The BA370 expansion enclosure is shipped with a universal mounting kit (DS-BA370-XB) which contains the necessary components and hardware to install the BA370 into an 41U RETMA cabinet or an SW600 metric cabinet.

NOTES

Since the BA370 enclosure universal mounting kit is designed for use in more than one cabinet, there will be parts lef t over upon compl eting the i nst allati on proc ess. For easy ident if i cat i on, a c omponent part number is s tam ped on each bracket.

The cabinet opening r equired to inst all a BA370 expansi on enclosur e must be at leas t 30.5 i n. (774. 7 mm) hi gh and 19 in. (482.6 mm) wide.

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Chapter 2. Installing the RA8000 and ESA12000

If you are installing a single BA370, it must be installed at the bottom of the cabinet for stability. After the plates are installed and secured, you must install two mounting brackets on each side of the BA370 along with a LED mounting bracket. Then, two persons are needed to lift, mount, and secure the BA370 to the two mounting plates in the cabinet. It is very important that you install the mounting plates and mounting brackets properly or the BA370 will not install.

If installing two BA370 enclosures in the same cabinet, install both the lower and upper enclosure mounting plates prior to installing the lower BA370 enclosure. This process makes it easier to identify the correct vertical rail holes and secure the mounting plates to the rails.

If an ECB shelf will be installed between the enclosures, Compaq recommends installing it prior to installing the second BA370 enclosure in the upper location. Otherwise, it might be difficult to secure the rear ECB shelf mounting brackets.

Perform the following procedures to install a single BA370 into the bottom location of the cabinet using the universal rack mounting kit.

Open and check the contents of the BA370 universal rack mounting kit. The kit should contain the following items:

Table 2–1 BA370 Universal Mounting Kit Parts List

Description Qty.

Left Mounting Plate 1 Right Mounting Plate 1 BA370 Mounting Bracket 4 LED Bracket Assy. 1 Cover Plate 1 8-32 x 1/4 in. Pan-Head SEMS Screws 8 10-32 x 5/8 Pan-Head SEMS Screws 31 10-32 x 1/2 in. Flat-Head Machine Screw 4 6-32 x 3/8 in. TRUSS-Head Screw 1 10-32 Clip U-Nuts 12 Cable Ties 18

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RA8000 and ESA12000 Storage Subsystems

2.4.1.1 Installing the Lower Enclosure

The following procedures describe the mounting kit installation process for both the 41U RETMA and SW600 metric cabinets. Complete only the procedure that applies to your specific cabinet design. Although the illustrations depict the installation into a 41U RETMA cabinet, they are also used to support a kit installation into a metric cabinet.

NOTE

Count only the cabinet rail holes that are 0.281 inch in diameter, beginning at the bott om of the cabi net. DO NOT count the fi rst s maller hol e at the ver y bottom or top of the rail.

Installing the Left-Lower Mounting Plate into a 41U RETMA Cabinet:

1. Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole numbers 18, 27, 40, 54, and 65 as shown in Figure 2–10.

2. Hold up the left mounting plate, align the dimpled holes on the mounting plate (see Figure 2–10) with the clip U-nuts installed in step 1 and install five 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front cabinet rail, install two 10-32 x 1/2 in. flat-head screw in holes 27 and 53 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install four 10-32 x 5/8 pan-head screws in the front cabinet rail using holes 17, 35, 44, and 64. Tighten the four screws.

Installing the Left-Lower Mounting Plate into a Metric (SW600) Cabinet:

1. Install four clip U-nuts on the rear leg of the left-front rail using vertical rail hole numbers 3, 9, 16, and 25 as shown in Figure 2–10.

2. Hold up the left mounting plate, align the dimpled holes on the mounting plate (see Figure 2–10) with the clip U-nuts installed in step 1 and install four 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head screw in holes 9 and 24 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail using holes 2, 16, and 30. Tighten the screws.

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Chapter 2. Installing the RA8000 and ESA12000

Figure 2–10 Installing Left-Lower Mounting Plate (41U RETMA Shown)

Front rail

Clip U-nut (5X)

10-32 Flat-head screw (2X)

Left mounting plate

10-32 Pan-head screw (5X)

10-32 Pan-head screw (4X)

CXO6591A

Installing the Right-Lower Mounting Plate into a 41U RETMA Cabinet:

1. Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole numbers 18, 30, 42, 53, and 65 as shown in Figure 2–11.

2. Hold up the left mounting plate, align the front column of dimpled holes on the mounting plate (see Figure 2–11) with the clip U-nuts installed in step 1 and install five 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head screws in holes 35 and 52 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet rail using holes 17, 44, and 62. Tighten the three screws.

EK–SMCPR–UG. A01 387404–001 2–15

RA8000 and ESA12000 Storage Subsystems

Installing the Right-Lower Mounting Plate into a Metric (SW600) Cabinet:

1. Install four clip U-nuts on the rear leg of the right-front rail using vertical rail hole numbers 3, 10, 19, and 28 as shown in Figure 2–11.

2. Hold up the left mounting plate, align the rear column of dimpled holes on the mounting plate (see Figure 2–11) with the clip U-nuts installed in step 1 and install four 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head screws in holes 10 and 26 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet rail using holes 2, 18, and 30. Tighten the three screws.

Figure 2-11 Installing the Right Mounting Plate (RETMA Cabinet Shown)

Clip U-Nut (5X)

Right mounting plate

10-32 Flat-head screw (2X)

10-32 Pan-head screw(5)

10-32 Pan-head screw (3X)

CXO6592A

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Chapter 2. Installing the RA8000 and ESA12000

2.4.1.2 Installing the LED Bracket and the BA370 Mounting Brackets

NOTE

If your enclosure arrived with an LED bracket assembly previously installed, some procedural steps can be omitted.

Complete the following procedure to install the LED bracket assembly and enclosure mounting brackets on a BA370 enclosure. Refer to Figures 2–12 and 2–13 as necessary for clarity.

1. Align the two dimples on the back of the LED bracket assembly with the front-right edge of the BA370 enclosure (see Figure 2–12) and secure the bracket to the cabinet using the 6-32 x 3/8 in TRUSS head screw (see Figure 2–13).

2. Install the LEDs at one end of the LED cable assembly (attached at top of enclosure) by snapping the green LED into the top hole of the bracket and the amber LED into the bottom hole.

NOTE

For 41U RETMA cabinet s, us e the s econd and four th hol es from the front of the flange on the brack et in the followi ng step. For metric cabinets, us e the first and third holes on t he bracket.

3. Attach four mounting brackets (two on the left side and two on the right side of the BA370 enclosure) using eight 8-32 x 1/4 in pan head screws as shown in Figure 2–13 and fully tighten the screws.

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RA8000 and ESA12000 Storage Subsystems

Figure 2-12 Positioning the LED Bracket on the BA370

CXO6595A

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Chapter 2. Installing the RA8000 and ESA12000

Figure 2-13 Installing the LED Bracket and BA370 Mounting Brackets

Metric:

RETMA: 8 x 32 Pan-head screws

8 x 32 Pan-head screws

Metric: 8 x 32 Pan-head screws

Mounting brackets

Truss-head screw

RETMA: 8 x 32 Pan-head screws

LED bracket assy

Metric: 8 x 32 Pan-head screws

2.4.1.3 Installing the Lower BA370 Enclosure into the Cabinet

WARNING

The full BA370 enclosure weighs more than 102 kg (225 lbs.). To prevent personal injury:

• Always m ount an empty enc losure i nto a c abinet prior to installing devices.

• Use at leas t t wo people t o lift, align, insert, and secure the enclosure into a cabinet.

• Extend the cabinet stabilizer legs, if available, to prevent the cabinet from tipping over while the enclosure is being inserted into the upper location.

RETMA: 8 x 32 Pan-head screws

Mounting brackets

RETMA: 8 x 32 Pan-head screws

CXO6593A

EK–SMCPR–UG. A01 387404–001 2–19

RA8000 and ESA12000 Storage Subsystems

CAUTION

If installing a second BA370 into an operational cabinet, ensure all power is removed from the cabinet prior to installing the enclosure.

If instal ling two BA370 enclosur es, always install t he lower unit first for stability and safety.

Proceed as follows to install a BA370 enclosure into the cabinet:

1. Remove all components from the BA370 enclosure being mounted.

2. For cabinets with stabilizer legs: a) Pull out and fully extend the stabilizer legs from under the cabinet. b) Adjust the leveling foot on each stabilizer leg so that it is firmly pressed

against the floor.

NOTE

If the enclosure does not align or slide smoothly into the cabinet i n the f oll owi ng proc edur e, t hen t he mount ing pl ates inside the cabinet may not be installed properly.

3. Using two or more people, carefully lift the BA370 enclosure and insert its mounting brackets into the corresponding mounting plate channels in the appropriate cabinet location, and then slowly slide the enclosure into the cabinet.

WARNING

Once the enclosure is inserted into the mounting plate channels, inserted into the cabinet. The mounting brackets and the mounting plate channels cannot support an enclosure that i s only part ially ins erted. Damage to equipment and personal injury might result.

2–20 387404–001 EK–SMCPR–UG. A01

DO NOT

release the enclosure until it is fully

Chapter 2. Installing the RA8000 and ESA12000

NOTE

For 41U RETMA cabinets, one screw is required in the

middle sl ot

step. For metric c abinets, one s crew is r equired in the

and bottom slots

of each mounti ng brac ket f lange in t he followi ng

top

of each mounting bracket flange.

4. Secure the BA370 to the cabinet by installing four 10-32 x 5/8 in pan-head screws through the front flange of the mounting brackets and fully tighten the screws.

5. From the rear of the cabinet, secure the mounting brackets to mounting plate channels by installing four 10-32 x 5/8 in pan head screws through the four mounting plate tabs and fully tighten the screws.

6. For 41U RETMA cabinet installations, proceed to step 7. For metric cabinet installations, proceed to step 10 and continue.

7. Install two clip u-nuts in the first available 1U space below the lower enclosure.

8. Orient the cover plate so that the extended surface faces upward as shown in Figure 2–14.

9. Align the holes in the cover plate over the clip u-nuts installed in previous step 7 and secure the plate to the cabinet using two clip U-nuts and two 10-32 x 5/8 in pan head screws and fully tighten the screws (see Figure 2–14).

10. On top of the enclosure, connect the other end of the LED cable to the connector from the door-mounted LED cable assembly.

11. Ensure all LED cable connections are firmly seated.

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RA8000 and ESA12000 Storage Subsystems

Figure 2–14 Installing the Cover Plate

CXO6596A

2.4.1.4 Installing the Upper Enclosure in the Cabinet

This procedure describes how to install a second BA370 enclosure into the top location of the expansion cabinet. As in the previous section, separate procedures are included to install the mounting plates in both 41U RETMA and SW600 metric cabinets. Complete only the procedure that applies to your specific cabinet design. The illustrations in the previous section (Figures 2–10 through 2–14) support both 41U RETMA and metric cabinet installations.

WARNING

Never ins tall a BA370 enclos ure in the top l ocation of the cabinet without first installing an enclosure in the lower location, or ensuring the lower section of the cabinet is sufficiently weighed to provide cabinet stability.

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Installing the Left-Upper Mounting Plate into a 41U RETMA Cabinet:

1. Install five clip U-nuts on the rear leg of the left-front cabinet rail using vertical rail hole numbers 75, 84, 97, 111, and 112.

2. Hold up the left mounting plate, align the front column of dimpled holes on the mounting plate with the clip U-nuts installed in step 1 and install five 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head screw in holes 84 and 110 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install four 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail using holes 74, 92, 101, and 121. Tighten the four screws.

Installing the Left-Upper Mounting Plate into a Metric (SW600) Cabinet:

1. Install four clip U-nuts on the rear leg of the left-front cabinet rail using vertical rail hole numbers 34, 40, 47, and 56.

2. Hold up the left mounting plate, align the rear column of dimpled holes on the mounting plate with the clip U-nuts installed in step 1 and install four 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the screws at this time.

3. On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head screw in holes 40 and 55 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail using holes 33, 47, and 61. Tighten the screws.

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RA8000 and ESA12000 Storage Subsystems

Installing the Right-Upper Mounting Plate into a 41U RETMA Cabinet:

1. Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole numbers 75, 87, 99, 110, and 122.

3. On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head screws in vertical rail holes 92 and 109 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet rail using vertical rail holes 74, 101, and 119. Tighten the three screws.

Installing the Right-Upper Mounting Plate into a Metric (SW600) Cabinet:

1. Install four clip U-nuts on the rear leg of the right-front rail using vertical rail hole numbers 34, 41, 50, and 59.

3. On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head screws in vertical rail holes 41 and 57 and tighten the screws.

4. Fully tighten all remaining screws installed in step 2.

5. Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet rail using holes 33, 49, and 61. Tighten the three screws.

Installing the Upper BA370 Enclosure into the Cabinet

Perform the procedures described in paragraph 2.4.1.3 to install the BA370 enclosure into the upper location of the cabinet.

Take all of the precautionary measures listed in

paragraph 2.4.1.3 to safeguard personnel and prevent damage to the equipment.

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2.4.2 Connecting AC Power and ECB Cables

If power is applied to the master cabinet, power down the controllers by following the procedure contained in the

Version 7.0 Service Manual

ac power entry controllers to 0. Remove ac power to the Power Distribution Unit (PDU) by moving the breaker switch to 0. Disconnect the power distribution unit from the ac power source.

1. For BA370’s with 4+4 power configurations, go to the rear of the cabinet and plug the black ac power cord from the BA370’s ac power entry controller into the bottom PDU that already has a black power cord plugged into it. For dual-redundancy units, plug the gray ac power cord from the BA370’s ac power entry controller into the top PDU in the rear of the SW600 cabinet. Attach ECB cables to the ECB and to the cache modules The top BA370 ECB is located on the left-hand side of the ECB shelf. The bottom BA370 ECB is located on the right-hand side of the ECB shelf. Repeat the same procedure for the 41U RETMA cabinet (note: the PDUs are located in the front and rear of the cabinet in the 41U).

2. Plug the PDU ac power cable(s) into the ac power source.

3. Connect the ECB Y-cables between the ECB batteries and the cache modules as shown in Figure 2–15.

DIGITAL StorageWorks HSZ80 Array Controller HSOF

. Remove ac power to the BA370 by moving the switch on the

Figure 2–15 Installing ECB Y-Cables

External cache battery

Unconnected

Cache module

CXO5928A

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RA8000 and ESA12000 Storage Subsystems

2.4.3 Installing the DS-BA356-SG UltraSCSI Hub 41U RETMA

Shelf Mounting Kit

The UltraSCSI Hub Shelf option is installed in a 41U RETMA cabinet using the BA356 shelf mounting kit. The kit allows you to install up to two 3-port or 5-port SCSI Hubs in either the front and/or the rear of a cabinet containing 41 U RETMA mounting rails. The height of the shelf is approximately 150 mm (5.9 in.).

WARNING

High volt ages are pr esent wi thin t he cabi net when power is applied. Always turn off ac power to the cabinet and disconnect the power cords from the wall outlet before proceeding with this procedure.

Also, the rail edges in the cabinet are very sharp. Never slide hands along cabinet rail edges.

Proceed as follows to install the shelf mounting kit into the cabinet:

1. Turn off all ac power to the cabinet and disconnect the power cords.

2. Open the shelf mounting kit and layout the contents of the kit on a convenient working surface.

3. Refer to Figures 2–16 and 2–17 install the appropriate stop bracket on each mounting bracket throughout the installation procedure.

4. Place the first mounting bracket  behind the outer flange and against the inner flange of the left-hand cabinet vertical wall . Ensure the mounting studs  and tabs

are aligned with the vertical rail holes.



5. Slide the mounting bracket  forward to seat the studs  and tabs .

6. Install an M5 KEP nut  on both the top and bottom stud  and tighten fully.

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Figure 2–16 Mounting Bracket Stop Positions

Figure 2–17 Mounting Example Using Stop Position 1

CXO6242A

CXO6254B

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RA8000 and ESA12000 Storage Subsystems

Callout Legend (Figure 2–17)

Callout Description

1 Vertical Cabinet Rail 2 Locking Bracket 3 M5 KEP Nut 4 Mounting Stud 5 Mounting Tab 6 Mounting Bracket 7 Stop Position Bracket

7. Repeat steps 3 through 6 for the other mounting bracket using the right-hand vertical wall of the cabinet.

8. Slide the BA356 shelf into the mounting brackets until fully seated against the stop brackets . If the correct position was used, the front of the shelf will be flush with the rest of the shelves in the cabinet.

9. Position the appropriate locking bracket  over the two middle studs  of the lefthand mounting bracket , install two M5 KEP nuts , and finger tighten.

10. Adjust the locking bracket  so that the flange is firmly seated against the shelf.

11. Fully tighten the M5 KEP nuts  installed in step 9.

12. Repeat steps 9 through 11 for the other locking bracket on the right-hand mounting bracket.

The BA356 shelf is now ready for you to mount the three or five-port UltraSCSI Hub into the cabinet. For a single hub installation, we recommend that you mount the hub in the right-hand slot locations of the shelf. This will minimize cable-run interference between the hub and the controller. Detailed information describing the rack-mountable UltraSCSI hub can be found in document EK-SMDZS-UG.

You are now ready to make the cable connections between the hub(s) and the array controller(s). Figures 2–18 and 2–19 show examples of configuration layouts for three and five-port hubs, respectively.

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Figure 2–18 Three-Port UltraSCSI Hub Configuration Layout

Storage Subsystem

(RA8000 or ESA12000)

HSZ80

Controller

BN38C SCSI Cable or

BN37A SCSI Cable

with BN38E-0B Technology

Adapter Cable

HSZ80

Controller

with BN38E-0B Technology

DWZZH-03

Adapter

Host System

UltraSCSI Hub

Adapter

Host System

Figure 2–19 Five-Port UltraSCSI Hub Configuration Layout

Storage Subsystem

Host System

Adapter

(RA8000 or ESA12000)

HSZ80

Controller

HSZ80

Controller

H8863 - AA Terminator

BN37A

SCSI Cable

Host System

Adapter

H8863-AA

Terminator

BN37A

SCSI Cable

BN38C SCSI Cable or

BN37A SCSI Cable

Adapter Cable

SHR-1101

BN38C SCSI Cable or

BN37A SCSI Cable

with BN38E-0B

Technology Adapter Cable

Host System

Adapter

DWZZH-05

UltraSCSI Hub

Adapter

Host System

BN38C SCSI Cable o

Technology Adapter

BN37A SCSI Cable

with BN38E-0B

SHR-1132

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RA8000 and ESA12000 Storage Subsystems

2.4.4 Installing a Filler Panel Mounting Kit in a 41U RETMA Cabinet

This procedure describes how to install the filler panel mounting kit (DS-SWX41-XK) into the 41U RETMA cabinet.

NOTE

If a cabinet has a particular filler panel configuration that was factor y instal led, do not rem ove the panels unless y ou are reconfiguring the cabinet. If adding enclosures or reconfiguring the cabinet, use filler panels in all open cabinet slots.

2.4.4.1 Installation Procedure

NOTE

The panels in the mounting k it are st amped with ident ifyi ng part numbers. Also, not all of the parts are used in each cabinet configuration.

1. Unpack and inspect the contents of the panel mounting kit. It should contain the following components:

Description Qty.

1 Unit (1U) Filler Panel 4 5 U Filler Panel 1 1U Cover Plate 1 10-32 x 5/8 Pan-Head SEMS Screws 14 U-Nut 14

The filler panels and cover plate in this kit mount in either a 1U space or 5U space. A single U-space (1U) is composed of three rail holes and measures 1.75 inches in height. Spacing between the first and second hole, and between the second and third hole in a Uspace is 0.625 in. Spacing between the third hole in a U-space and the first hole of a second U-space is 0.5 in. Thus, a 1U space measures 1.75 in (0.625 + 0.625 + 0.5). This three hole pattern repeats the entire length of the rails in a 41U RETMA cabinet.

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A 5U space takes up five 1U hole patterns or 8.75 in (5 x 1.75 in).

NOTE

Correct placement of each filler panel is dependent upon using the appropriate rail holes which make up the 1U or 5U height.

A cover plate can be mounted in two ways:

•

Extended Face Up

, if installed below the lowest enclosure within the cabinet as

shown in Figure 2–20.

•

Extended Face Down

, if installed above the highest enclosure within the cabinet.

Mount the appropriate size and number of filler panels above or below the cover plate, installing enough panels to close the opening extending to the top or bottom of the cabinet.

1. Identify the cover plate mounting location (below the lowest enclosure or above the highest enclosure), using the first available 1U space.

2. Insert a U-nut in each cabinet rail hole opening where a panel hole corresponds with a cabinet rail hole.

3. Align the panel with the U-nuts installed in the previous step and secure it only finger-tight using SEMS screws.

NOTE

Two U-nuts and t wo SEMS sc rews ar e requir ed for a c over plate and each 1U f iller panel. Four U-nuts and four SEMS screws are required for a 5U filler panel.

Do not tighten the SEMS sc rews until al l sc rews have been started.

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RA8000 and ESA12000 Storage Subsystems

Figure 2–20 Installing the Cover Plate

4. Fully tighten the SEMS screws.

5. Identify the number and placement of 1U and 5U filler panels sufficient to fill the remaining opening above or below the cover plate.

CXO6596A

NOTE

Install filler panels from the cover plate up or down, beginning with t he f ir st av ail able 1U ( for a 1U filler panel) or 5U space (for a 5U filler panel).

If necessary, install additional filler panels using the first available 1U space or 5U space.

6. Repeat steps 2 through 5 as appropriate using a 1U or 5U filler panel until the opening above or below the cover plate is closed.

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2.4.5 Installing the DS-SWX4U-2U External Cache Battery (ECB)

Shelf Mounting Kit

This procedure describes how to install the ECB mounting kit (DS-SWX4U-2U) into an 41U RETMA cabinet. Once the kit is installed, either one or two ECB SBBs can be mounted into the shelf.

Compaq recommends mounting the ECB shelf in the front of the cabinet directly above the lower BA370 enclosure. The shelf is capable of holding two ECB SBBs (a single or dual ECB module). If only one ECB (either a single or dual module) is installed, a blank bezel must be installed in the other opening of the shelf.

NOTE

If only one BA370 enclosure is install ed within the cabi net, the space above the ECB shelf must be covered with 5U and 1U filler panels to pr ovide adequate air f low within the cabinet. If two BA370 enclosures are installed, no filler panels are required above the upper enclosure.

If two BA370 enc losur es will be installed within the cabinet, Compaq recommends installing the ECB shelf prior to instal li ng the sec ond BA370 enc los ur e in t he upper loc at ion. Otherwis e, it might be di ffi cult to sec ure the rear ECB s helf mounting brackets.

2.4.5.1 Installation Procedure (See Figure 2–21)

Perform the following procedure to install the ECB shelf into the cabinet:

NOTE

Count only the cabinet rail holes that are 0.281 inch in diameter, beginning at the bott om of the cabi net. DO NOT count the fi rst s maller hol e at the ver y bottom or top of the rail.

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RA8000 and ESA12000 Storage Subsystems

1. Unpack and inspect the contents of the ECB shelf mounting kit. It should contain the following components:

Description Qty.

ECB Shelf 1 Angle Bracket 2 SBB Filler Bezel 1 10-32 x 5/8 Pan-Head SEMS Screw 10 10-32 U-Nut 8

Figure 2–21 Installing the ECB Shelf Mounting Kit

CXO6599A

2. Install two clip U-nuts in the rear leg of the left-front cabinet rail, using holes 69 and 72 as shown in Figure 2–21.

3. Holding the angle bracket, align it with the holes containing the U-nuts installed in the previous step and secure the bracket using two 10-32 x 5/8 in Pan Head screws.

4. Repeat steps 2 and 3 for the rear leg of the right-front cabinet rail.

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5. Insert four clip U-nuts in rail holes 68 and 71 on both cabinet vertical rails.

6. Insert the ECB shelf into the angle brackets, align the shelf with the four clip U-nuts installed in the previous step and secure it using four 10-32 x 5/8 in Pan Head screws (two on the left and right sides) finger-tight.

7. From the rear of the cabinet, secure the back of the ECB shelf to the angle brackets by installing two 10-32 x 5/8 in Pan Head screws (one in the upper hole of the left angle bracket and lower hole of the right angle bracket—as seen from the rear).

8. From the front of the cabinet, fully tighten the four screws (installed in step 6) that hold the ECB shelf to the cabinet rails.

9. If only one ECB is being installed in the shelf, insert the filler bezel into the open slot.

10. Connect the ECB Y-cable(s) between the ECB module(s) and the cache module at the bottom of the BA370 cabinet (see Figure 2–15).

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RA8000 and ESA12000 Storage Subsystems

2.4.6 Installing the Fibre Channel Hub Mounting Kit

This procedure describes how to install a fibre channel (FC) hub using a FC hub mount kit into an ESA12000 cabinet. A FC hub can be mounted in any 1U space within a 41U RETMA cabinet. However, Compaq recommends installing the hub below the lowest enclosure in the cabinet. If installing more than one hub, mount subsequent hubs (up to four) directly below the first hub (see Figure 2–22). Each hub installation requires a 1U space. HSG80 array controller configuration examples are included following the procedure.

Figure 2–22 Three FC-Hub Configuration Example

CXO6626A

2.4.6.1 Power Cord Installation Procedure

Before installing a FC hub, a power cord for each hub being installed must be installed. For multiple FC hub configurations, Compaq recommends connecting primary hubs to the primary PDU and secondary hubs to the redundant PDU.

Complete the following procedure to install a power cord for each FC hub being installed.

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1. Unpack and inspect the contents of the FC hub mounting kit. It should contain the following components:

Description Qty.

Mounting Plate Bracket 2 Slide Bracket 2 Rear Mounting Bracket 2 10-32 x 5/8 Pan-Head SEMS Screws 8 Flat Head Screw 4 U-Nut 8

2. Identify the FC hub mounting location.

3. Remove any filler panels from the installation location.

4. Remove all power from the cabinet.

WARNING

HIGH VOLTAGES

applied. Failur e to disconnec t power from the c abinet may result in personal injury or death.

are present in t he c abinet when power is

5. Remove four screws securing the redundant PDU located directly below the installation area.

6. Pull the redundant PDU outward and route the male plug end of each power cord under the PDU. Ensure the appropriate number of power cords is routed under the PDU (one cord per hub),

7. Plug each power cord into the appropriate primary or redundant PDU. For multiple FC hub configurations, consider labeling each power cord as primary or redundant.

8. Gently push the redundant PDU back into the cabinet and secure the PDU using the four screws removed in step 5.

CAUTION

Ensure the hub power cords exposed below the PDU are not pinched and are of suffi c ient lengt h for c onnec ti on to t he appropriate FC hub.

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RA8000 and ESA12000 Storage Subsystems

2.4.6.2 Hub Installation Procedure (See Figures 2-23, 2-24 and 2-25)

Complete the following procedure to install an FC hub into the cabinet using the FC hub mount kit.

1. Install two U-nuts in the first and third hole of the first U-space available under the lowest enclosure at the rear of the cabinet (see , Figure 2-23).

2. Reposition or remove any cabling that might interfere with installing a hub in the designated location.

Figure 2–23 Installing U-Nuts and Brackets

CXO6623A

3. Align the first rear mounting bracket  flange with the two u-nuts installed in the previous step and secure the bracket using two pan head SEMS screws



4. Repeat steps 1 and 3 for the second rear mounting bracket using the right-hand cabinet vertical rail. Ensure this bracket uses the same U-space holes as the left-hand bracket.

5. Remove four flat head screws



that originally came installed with the FC hub and

discard them (two screws on the left side and two on the right side).

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Figure 2–24 Attaching Slide Brackets

Chapter 2. Installing the RA8000 and ESA12000

CXO6624A

6. Insert a flat head screw (6, Figure 2–24) in the third hole from the front of the bracket and into the same hole from which a screw was removed from the left-front hub area, and secure it finger tight.

7. Insert a flat head screw (5, Figure 2–24) through the mounting plate bracket and the second slide bracket opening from the rear.

8. Insert the screw into the hole from which a screw was removed from the left-rear hub area, securing it finger tight. Ensure the mounting plate bracket position clamps onto the slide bracket when secured to the hub.

9. Fully tighten both flat head screws securing the slide bracket to the hub.

10. Repeat steps 5 through 9 to connect the second slide bracket to the right side of the hub.

11. Install two U-nuts (1, Figure 2–25) in the first and third hole of the first U-space available under the lowest enclosure at the front of the cabinet on both the left and right cabinet vertical rails.

NOTE

Ensure this U-space matches that used for installing the rear mounting brackets in the back of the cabinet.

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RA8000 and ESA12000 Storage Subsystems

Figure 2–25 Installing Slide Brackets

12. Align the hub slide brackets (2, Figure 2–25) with both rear mounting brackets (3, Figure 2–25) and insert the slide brackets into the mounting brackets, pushing inward until the slide bracket flange contacts the cabinet vertical rails.

CAUTION

CXO6625A

Faille to support the hub in a rel ativ ely level pos iti on duri ng installation can damage the rear mounting brackets. Maintain this position until the slide bracket is fully secured to the cabinet vertical rails.

13. Align the two left slide bracket holes with the two u-nuts installed in step 7 and install two pan head SEMS screws (4, Figure 2–25), securing the bracket to the cabinet rail.

14. Repeat step 13 for the right slide bracket.

15. Repeat steps 1 through 14 for each additional FC hub you plan to install.

16. Connect a power cord to each FC hub installed.

17. Reposition or reconnect any cabling affected during the procedures.

18. Refer to Figures 2–26 through 2–33 for specific examples of various HSG80 array controller configurations.

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Chapter 2. Installing the RA8000 and ESA12000

2.4.6.3 HSG80 Array Controller Configuration Examples

(Figures 2-26 through 2-33)

Figure 2–26 shows the cable connections between dual FC hubs and dual array controllers. The cables to the hubs can connect into any open connector. Unused connections need no termination.

Figure 2–26 Dual Controller, Dual Hub Configuration

To host

1 2 3 4 5 6

To host

CXO6496A

HSG80 controllers

Fibre Channel Arbitrated Loop Hub

Multi-mode Fiber Optic Cable

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RA8000 and ESA12000 Storage Subsystems

Figure 2–27 shows a block diagram of a Single Controller/Single Server configuration using a single active port. This configuration offers no redundancy.

Figure 2–27 Single Controller/Single Server/Single Port

Server

HBA

Hub

Port 2

Port 1

Inactive

Active

HSG80

CXO6627A

Figure 2–28 shows a Single Controller/Single Server configuration using two active ports for increased performance.

Figure 2–28 Single Controller/Single Server/Dual Port Configuration

Server

HBA

Hub

Port 1

Active

Port 2 Active

HSG80

CXO6628A

Figure 2–29 shows a Dual Controller/Single Server configuration utilizing one port on each controller which offers controller redundancy.

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Figure 2–29 Dual Controller/Single Server/Single Port Configuration

Server

HBA

Hub

Port 2

Port 1

Inactive

Active

Port 2

Port 1

Standby

HSG80 B

Inactive

HSG80 A

CXO6629A

Figure 2–30 shows a Dual Controller/Single Server configuration utilizing both ports on the controllers. One port is the active port on each controller, the other is in standby. This offers controller redundancy and faster performance.

Figure 2–30 Dual Controller/Single Server/Dual Port Configuration

Server 1

HBA

Hub

Port 2

Port 1

Standby

Active

Port 1

Standby

Port 2

Active

HSG80 A

HSG80 B

CXO6630A

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RA8000 and ESA12000 Storage Subsystems

Figure 2–31 shows a Single Controller/Dual Server configuration. This configuration allows multiple servers to share the storage subsystem. Servers in this configuration do not have access to the other server’s storage unless they are clustered.

Figure 2–31 Single Controller/Dual Server/Dual Port Configuration

Server 1

HBA

Hub 1

Port 1 Active

Port 2

Active

Server 2

HBA

Hub 2

HSG80

CXO6631A

Figure 2–32 shows a Multiple Server/Dual Controller configuration which offers controller redundancy and allows the servers to share the storage subsystem.

Figure 2–32 Multiple Server/Dual Controller Configuration

Server

HBA

Hub 1

Server

HBA

Server

HBA

Server

HBA

Hub 2

Port 2

Port 1

Standby

Active

Port 2

Port 1

Standby

HSG80 B

Active

HSG80 A

CXO6633A

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Figure 2–33 shows a Dual Server/Single Hub configuration which offers controller and server redundancy.

Figure 2–33 Clustered Dual Server/Single Hub Configuration

Server 1

HBA

Standby

Port 1

HSG80 B

Hub

Port 2

Inactive

Server 2

Port 1 Active

HSG80 A

HBA

Port 2

Inactive

CXO6634A

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RA8000 and ESA12000 Storage Subsystems

2.4.7 Cabling a Master Enclosure to an Expansion Enclosure(s)

This section describes how to connect the cables between a master enclosure and an expansion enclosure. Perform the procedures in this section following the installation of the joiner kit installation instructions (see paragraph 2.2.3).

NOTE

One DS-BNK37-1E cabl e kit is r equired f or each ex pansi on unit.

2.4.7.1 Cabling Sequence

When adding an expansion BA370 unit, the following sequence is suggested.

1. Connect all six SE I/O cables between units.

2. After the SE I/O cables are attached, connect the EMU communication cable.

3. Set the PVA address.

2.4.7.2 Attaching the SE I/O Cables

Figure 2–34 SE I/O Port Identification

642

531

CXO5819A

Ther-+e is a separate cable for each port of the controller and all cables are identical. Refer to Figure 2–34 and attach the cables to one port at a time. SE I/O cables are connected port-to port maintaining the same port number at each end. Port 1 of the master unit connects to port 1 of the expansion unit(s), port 2 of the master unit connects to port 2 of the expansion unit(s), and so forth. Start with the bottom row (ports 1, 3, 5) first then the top row (ports 2, 4, and 6). Place the cable clip on each cable prior to attaching the cable to the I/O module. Orient the connector on the cable to match the I/O module connector and plug the cable connector into the I/O module connector.

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CAUTION

Do not overtighten the jackscrews in the following step. Over-tightening could damage the connectors.

Secure the cable by finger-tightening the cable connector jackscrews. Slide the cable clip along the cable and press it into the hole of the I/O module bracket.

2.4.7.3 Cabling for One Expansion Unit

For a single expansion unit, cable from the master unit to the

terminated

side of the expansion unit. The terminated side is identified

terminated

side of the I/O module on the

by the resistor symbol, it is also the LEFT-hand connector of the SE I/O module. See Figure 2–35.

Figure 2–35 SE I/O Port Wiring (One Expansion Unit)

642

531

Cable A

642

531

CXO5840A

2.4.7.4 Cabling for Two Expansion Units

For two expansion units, cable from the terminated unit to the terminated from the unterminated

side of the I/O module on the first expansion unit. Then connect

side of that I/O module on first expansion unit to the terminated

side of the I/O module on the master

side of the I/O module on the second expansion unit. The unterminated side is identified by the resistor symbol enclosed in a circle with a diagonal bar across the symbol. It is also the RIGHT-hand connector of the SE I/O module. See Figure 2–36.

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RA8000 and ESA12000 Storage Subsystems

Figure 2–36 SE I/O Connections for Two Expansion Units

642

531

642

531

642

531

2.4.7.5 Attaching the EMU Communications Cable

Cable A

Cable B

CXO5841A

Figure 2–37 EMU Front Panel

EMU COMMUNICATIONS CONNECTOR

SYSTEM FAULT LED AND ALARM CONTROL SWITCH

EMU MAINTENANCE CONNECTOR

EMU COMMUNICATIONS CONNECTOR

TEMPERATURE FAULT LED

POWER STATUS LED

BLOWER FAULT LED(S)

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Connect the EMU communications cable from one EMU communications port (see Figure 2–37) of the master BA370 Enclosure to the communications port of the first expansion unit. If there is a second expansion unit, connect an EMU communications cable from one EMU communications port of the first expansion unit to a communications port of the second expansion unit. See Figure 2–38.

Figure 2–38 Multiple EMUs Connected Together

CXO5820A

2.4.8 Setting the PVA Addresses

Figure 2–39 PVA Module Front Panel

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RA8000 and ESA12000 Storage Subsystems

Compaq supports enclosure addresses 2 and 3, only for expansion enclosures. Figure 2–40 defines the SBB device IDs for these two settings of the PVA SCSI bus address switch. The use of these addresses in combination depends on the number of enclosures and possible addressing conflicts.

CAUTION

Compaq does not support any enclosure address combination not listed in Table 2–3.

Table 2–3 Expansion Enclosure Address Combinations

Enclosure PVA Address Switch

Setting for Two BA370 Rack Mountable Units

Master First Expansion

Enclosure Second Expansion

Enclosure

00 22

N/A 3

PVA Address Switch Setting for Three BA370 Rack Mountable Units

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Figure 2–40 Expansion Enclosure SCSI Bus Addresses

SCSI Bus 2

SCSI Bus 1

ID3

ID2

ID1

Typical Backplane Connection

ID0

SCSI Bus 3

SCSI Bus 4

SCSI Bus 6

SCSI Bus 5

Device Address 3/11/15

Device Address 2/10/14

Device Address 1/9/13

Device Address 0/8/12

PVA Address 0/2/3

Device Address 7

ID7 ID6

EMU

PVA

Device

Cache module Cache module

Address 6

CXO5889A

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Compaq RA8000, ESA12000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual