StorageWorks RA7000, ESA10000 User Manual

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RA7000 and ESA10000 Storage Subsystems

User's Guide

EK–SMCPP–UG. A01

Digital Equipment Corporation Maynard, Massachusetts

First Edition, July 1997

The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.

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Digital Equipment Corporation does not give a warranty of any kind regarding the fitness or applicability of the information content for a particular purpose. The user assumes all responsibility for understanding the interrelationships of this enclosed information with other affected software or system products.

The disclosure of this information does not grant to the user a license under any patents, pending patents, trademarks, or copyrights or other rights of Digital Equipment Corporation, or of any third party.

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All other trademarks and registered trademarks are the property of their respective owners.

DIGITAL, the DIGITAL logo, and StorageWorks are trademarks of Digital Equipment Corporation.

Contents

Revision Record About This Guide

........................................................................................................ ix

...................................................................................................... xi

1 Product Description

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

1.2 Major Components.................................................................................................... 1–4

1.2.1 HSZ70 RAID Array Controllers............................................................................. 1–5

1.2.2 SCSI Buses............................................................................................................ 1–6

1.2.3 Single-Ended I/O Module (SE I/O)........................................................................1–7

1.2.3.1 Expanding the UltraSCSI Bus..............................................................................1–8

1.2.3.2 Controlling the Internal SCSI Bus....................................................................... 1–9

1.2.3.3 Controlling the External SCSI Bus...................................................................... 1–9

1.2.3.4 Controlling the Fault Bus.................................................................................... 1–9

1.2.3.5 “Warm Swapping” I/O Modules and Cables ....................................................... 1–9

1.3 Error Detection and Reporting.................................................................................1–10

1.3.1 Fault Bus............................................................................................................. 1–10

1.3.2 Environmental Monitor Unit (EMU).................................................................... 1–11

1.3.2.1 Controller Status............................................................................................... 1–11

1.3.2.2 I/O Module Status............................................................................................. 1–12

1.3.2.3 Enclosure Configuration Information................................................................ 1–12

1.3.2.4 EMU Front Panel.............................................................................................. 1–13

1.3.3 Power Verification and Addressing (PVA) Module.............................................. 1–15

1.3.3.1 Monitoring Power Supply Operation................................................................. 1–16

1.3.3.2 Master Enclosure Controlled Power Shutdown ................................................. 1–17

1.3.3.3 Expansion Enclosure Initiated Power Shutdown................................................ 1–18

1.3.3.4 PVA UPS (Uninterruptable Power Supply) Options.......................................... 1–19

1.4 Storage Device SBBs............................................................................................... 1–19

1.5 Power Configuration................................................................................................ 1–20

1.5.1 AC Power Entry Controllers................................................................................ 1–20

1.6 Power Supply SBBs................................................................................................. 1–22

1.7 Standard (4 + 1) Power Configuration ..................................................................... 1–23

1.8 Redundant (4 + 4) Power Configuration................................................................... 1–25

1.9 ECB SBBs............................................................................................................... 1–26

EK–SMCPP–UG. A01 iii

RA7000 nd ESA10000 Storage Subsystems

1 Product Description (continued)

1.10 Subsystem Cooling................................................................................................ 1–28

1.11 Setting the PVA SCSI Address.............................................................................. 1–30

1.11.1 DIGITAL Supported Master PVA Address........................................................ 1–31

1.11.2 DIGITAL Supported Expansion PVA Addresses................................................ 1–32

1.11.3 Non-Supported PVA SCSI Bus Addresses ......................................................... 1–32

2 Unpacking and Installation for the RA7000 and ESA10000 Storage Subsystems

2.1 Installing the RA7000................................................................................................ 2–1

2.1.1 Site Preparation..................................................................................................... 2–2

2.1.2 Unpacking the RA7000 Subsystem Enclosure........................................................ 2–2

2.1.3 Removing the RA7000 from the Pallet ..................................................................2–3

2.1.4 Placing the RA7000 Storage Enclosure.................................................................. 2–5

2.1.5 Connecting the Enclosure to the Host .................................................................... 2–5

2.2 Installing the ESA10000............................................................................................ 2–6

2.2.1 Site Preparation..................................................................................................... 2–6

2.2.2 Unpacking the ESA10000 Subsystem Enclosure....................................................2–7

2.2.3 Removing the ESA10000 from the Pallet............................................................... 2–9

2.2.4 Moving the ESA10000 to It’s Designated Site..................................................... 2–13

2.2.5 Joining Adjacent ESA10000’s ............................................................................. 2–13

2.2.6 Leveling the Cabinet............................................................................................ 2–16

2.3 Installing Additional Components ........................................................................... 2–16

2.3.1 Installing the BA370 Rack-Mountable Enclosure................................................. 2–16

2.4 Cabling a Master Enclosure to an Expansion Enclosure(s) ....................................... 2–24

2.4.1 Cabling Sequence................................................................................................ 2–24

2.4.2 Attaching the SE I/O Cables................................................................................ 2–24

2.4.2.1 Single Expansion Unit...................................................................................... 2–25

2.4.2.2 Two Expansion Units........................................................................................ 2–26

2.4.3 Attaching the EMU Communications Cable......................................................... 2–27

2.4.4 Setting the PVA Addresses.................................................................................. 2–28

2.5 Connecting SCSI Bus Cables to the ESA10000........................................................ 2–30

2.6 Installing SBBs........................................................................................................ 2–32

2.6.1 Installing SBB Disk Drives.................................................................................. 2–32

2.6.2 Installing SBB Power Supplies............................................................................ 2–34

2.6.3 Installing the AC Input Power Controller............................................................. 2–35

2.6.4 Installing the External Cache Battery (ECB) ........................................................ 2–36

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.......................................................................... 3–3

3.1.4 Alarm Control Switch............................................................................................ 3–4

iv EK–SMCPP–UG. A01

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 System Fault Code Displays......................................................................... 4–8

4.3.2 Controlled Power Shut Down............................................................................... 4–13

4.3.3 Automatic Shut Down ......................................................................................... 4–13

4.3.4 User-Initiated Master Enclosure Shut Down........................................................ 4–14

4.3.5 User-Initiated Expansion Enclosure Shut Down................................................... 4–15

4.4 Controller Error Conditions..................................................................................... 4–16

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

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

4.7 I/O Module Error Reporting .................................................................................... 4–19

4.7.1 Incompatible I/O Modules................................................................................... 4–19

4.7.2 No I/O Module Installed...................................................................................... 4–19

4.7.3 TERMPOWER Errors.......................................................................................... 4–19

5 Replacing Components

5.1 Replacing a Controller or Cache Module................................................................... 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 Backup the System................................................................................................ 5–2

5.2.2 Shut Down the System........................................................................................... 5–2

5.3 Controller Module Removal...................................................................................... 5–2

5.4 Cache Module Removal............................................................................................. 5–5

5.5 Replacing an SBB Storage Device............................................................................. 5–6

5.5.1 Replacement Method.............................................................................................5–7

5.5.2 Before You Replace a Storage SBB....................................................................... 5–7

5.5.3 SBB Replacement.................................................................................................. 5–7

5.6 Replacing Storage Subsystem Blowers...................................................................... 5–9

5.7 Replacing a Power Supply SBB............................................................................... 5–11

5.8 Replacing a Power Entry Controller......................................................................... 5–12

5.9 Replacing an EMU.................................................................................................. 5–13

5.10 Replacing a PVA................................................................................................... 5–14

5.11 FRU Parts List....................................................................................................... 5–15

Contents

Reader Comment Form

EK–SMCPP–UG. A01 v

...................................................................Inside Back Cover

RA7000 nd ESA10000 Storage Subsystems

Figures

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

Figure 1–2 RAID 7000 Enclosure................................................................................... 1–2

Figure 1–3A ESA10000 Storage Cabinet (Shown with two BA370 Rack Mountable

Enclosures in one cabinet)...................................................................................... 1–2

Figure 1–3B ESA10000 Storage Cabinet (Shown with three BA370 Rack Mountable

Enclosures in two cabinets).................................................................................... 1–3

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

Figure 1–5 HSZ70 Controller and Cache Modules.......................................................... 1–5

Figure 1–6 SCSI Buses................................................................................................... 1–6

Figure 1–7 Single-Ended I/O Module Location .............................................................. 1–7

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

Figure 1–9 Environmental Monitor Unit (EMU)........................................................... 1–13

Figure 1–10 Power Verification and Addressing (PVA) Module................................... 1–15

Figure 1–11 Disk Drive SBB........................................................................................ 1–19

Figure 1–12 AC Power Entry Controller....................................................................... 1–21

Figure 1–13 Typical Shelf Power Supply SBB.............................................................. 1–22

Figure 1–14 Standard Power Configuration (4 + 1)....................................................... 1–24

Figure 1–15 Redundant Power Configuration (4 + 4).................................................... 1–25

Figure 1–16 External Cache Battery (ECB) SBB.......................................................... 1–26

Figure 1–17 Cache-to ECB-Connection........................................................................ 1–28

Figure 1–18 Dual Speed Blower Locations................................................................... 1–29

Figure 1–19 Enclosure SCSI Address Switch................................................................ 1–30

Figure 1–20 Enclosure SCSI Bus Addresses for all SBB Device IDs............................ 1–31

Figure 2–1 RA7000 Minimum Installation Clearance Measurements.............................. 2–1

Figure 2–2 Unpacking the RA7000 Storage Enclosure.................................................... 2–3

Figure 2–3 Installation of Ramp on Shipping Pallet........................................................ 2–4

Figure 2–4 Minimum Installation Clearance Measurements ........................................... 2–6

Figure 2–5 Shipping Container Contents ........................................................................ 2–7

Figure 2–6 Shipping Pallet Ramp Installation............................................................... 2–10

Figure 2–7 Shipping Bolts and Brackets....................................................................... 2–11

Figure 2–8 Removing the Cabinet from the Pallet ....................................................... 2–12

Figure 2–9 Leveler Foot Adjustment............................................................................ 2–16

Figure 2–10 Mounting Rail Orientation........................................................................ 2–18

Figure 2–11 Rail Installation into Cabinet.................................................................... 2–19

vi EK–SMCPP–UG. A01

Figures (continued)

Figure 2–12 ECB Position............................................................................................ 2–20

Figure 2–13 Installing ECB Y-Cables........................................................................... 2–20

Figure 2–14 Attaching Mounting Brackets to the BA370.............................................. 2–21

Figure 2–15 SE I/O Port Identification......................................................................... 2–24

Figure 2–16 SE I/O Port Wiring (One Expansion Unit) ................................................ 2–25

Figure 2–17 SE I/O Connections for Two Expansion Units........................................... 2–26

Figure 2–18 EMU Front Panel...................................................................................... 2–27

Figure 2–19 Multiple EMUs Connected Together......................................................... 2–27

Figure 2–20 PVA Module Front Panel.......................................................................... 2–28

Figure 2–21 Expansion Enclosure SCSI Bus Addresses................................................ 2–29

Figure 2–22 SCSI Bus Cabling for the ESA10000........................................................ 2–31

Figure 2-23 Installing Power Supply SBB (4+4 Shown) ............................................... 2–34

Figure 2–24 Installing the External Cache Batteries ..................................................... 2–36

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

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

Figure 4–3 Typical Controller OCP Display................................................................. 4–16

Figure 4–4 Storage SBB LEDs..................................................................................... 4–17

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

Figure 4–6 I/O Module LEDs....................................................................................... 4–20

Figure 5–1 HSZ70 Controllers and Cache Modules........................................................ 5–3

Figure 5–2 Trilink Connector......................................................................................... 5–4

Figure 5–3 Cache Module Replacement ......................................................................... 5–5

Figure 5–4 SBB Identification Label.............................................................................. 5–6

Figure 5–5 SBB Replacement......................................................................................... 5–9

Figure 5–6 Blower Replacement................................................................................... 5–10

Figure 5–7 Power Supply SBB Replacement................................................................ 5–11

Figure 5–8 Power Entry Controller Replacement......................................................... 5–12

Figure 5–9 EMU Module Replacement......................................................................... 5–13

Figure 5–10 PVA Module Replacement....................................................................... 5–14

Figure 5–11 Storage Cabinet Field Replaceable Parts (RA7000 Shown)....................... 5–16

Contents

EK–SMCPP–UG. A01 vii

RA7000 nd ESA10000 Storage Subsystems

Tables

Table 1–2 EMU Front Panel Component Descriptions.................................................. 1–14

Table 1–2 Storage Subsystem Major Power Components ............................................. 1–20

Table 1–3 ECB Status Indications ................................................................................ 1–27

Table 1–4 Expansion Enclosure Address Combinations............................................... 1–32

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 Temperatures......................................................................... 3–3

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

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

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

Table 4–4 EMU Fault Code LED Displays..................................................................... 4–9

Table 4–5 Storage SBB Status LED Displays................................................................. 4–7

Table 4–6 Power Supply SBB Status LED Displays ..................................................... 4–18

Table 5–1 RAID Controller Response to an SBB Replacement....................................... 5–8

Table 5–2 Subsystem Field Replaceable Units.............................................................. 5–15

viii EK–SMCPP–UG. A01

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–SMCPP–UG. A01 July 1997 Initial release

EK–SMCPP–UG. A01 ix

About This Guide

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

RA7000 and ESA10000 Storage Subsystems User's Guide

This guide provides a product description, set up, configuration, and maintenance information for the RAID Array 7000 (RA7000) and the Enterprise Storage Array 10000 (ESA10000) 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 RA7000 and ESA10000 Storage Subsystems.

Document Structure

This guide contains the following chapters:

http://www.storage.digital.com/

Chapter 1: Product Description

Product Description

ESA10000 Storage Subsystems. It also describes their components, features, and operating functions.

provides a product overview of the RA7000 and

Chapter 2: Unpacking and Installation

Unpacking and Installation

Chapter 3: Configuring the Storage cabinet

Configuring the Storage Cabinet

communications bus and setting monitoring controls.

EK–SMCPP–UG. A01 xi

describes how to unpack and install the subsystem.

describes how to connect the EMU

RA7000 and ESA10000 Storage Subsystems

Chapter 4: Error Analysis and Fault Isolation

Error Analysis and Fault Isolation

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

describes the errors, faults, and significant

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 controller, refer to the following StorageWorks documents:

Document Title Document Part Number

CLI Reference Manual EK-CLI70-RM Configuration Manual EK-HSZ70-CG Service Manual EK-HSZ70-SV

xii EK–SMCPP–UG. A01

Product Description

This chapter describes the RA7000 and ESA10000 Storage Subsystems including the Ultra Small Computer System Interface (SCSI-3) connections (ports) for StorageWorks building block (SBB) shelves.

1.1 Subsystem Overview

The RA7000 and ESA10000 Storage Subsystems are members of DIGITAL’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) and a Power Verification and Addressing (PVA) module. StorageWorks storage devices, power supplies, controller(s), cache module(s), External Cache Battery (ECB),and 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

EK–SMCPP–UG. A01 1–1

CXO5797A

RA7000 and ESA10000 Storage Subsystems

Figure 1–2 RAID 7000 Enclosure

Figure 1–3A ESA10000 Storage Cabinet (Shown with two BA370 Rack

Mountable Enclosures in a sngle cabinet)

1–2 EK–SMCPP–UG. A01

CXO5828A

Chapter 1. Product Description

Figure 1–3B ESA10000 Storage Cabinet (Shown with three BA370 Rack

Mountable Enclosures in two cabinets)

CXO5845A

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

•

StorageWorks compatible

•

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

•

Redundant power distribution to eliminate single points of failure

•

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

•

No internal SCSI bus cables

•

A StorageWorks HSZ70 RAID array controller that is compatible with the approved host computer SCSI bus adapters

•

Redundant ac power entry controllers

•

All major components, except the single ended I/O modules and PVA module, can be replaced using the hot-swap method 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

The master unit contains the controller(s) and cache module(s). Expansion units contain additional storage devices on the same SCSI buses.

•

The 24-SBB RAID Array 7000 storage subsystem and the ESA10000 storage subsystem are Class A FCC certified.

EK–SMCPP–UG. A01 1–3

NOTE

RA7000 and ESA10000 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) Dual-Speed Blowers (8)

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

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

5) AC Input Power Controllers (2)

6) Cache Modules (2)

7) HSZ70 SCSI RAID Array Controllers (2)

8) Environmental Monitor Unit (EMU) (1)

9) SBB Power Supplies (8)

10) External Cache Batteries (2) also:

11) Power Distribution Unit (2)

Figure 1–4 Configured BA370 Rack Mountable Unit Major Components

Not shown, mounted in ESA10000 cabinet only

CXO5803A

1–4 EK–SMCPP–UG. A01

Chapter 1. Product Description

1.2.1 HSZ70 RAID Array Controllers

The controller connects a host system to the subsystem and appears as another SCSI device connected to one of its I/O buses. The controller then processes the I/O requests to the storage devices of the subsystem. The HSZ70 RAID array controller(s) mount in the lower front of the cabinet (see Figure 1-5). Installing two HSZ70 controllers with cache modules provides complete controller redundancy as described in the

Figure 1–5 HSZ70 Controller and Cache Modules

HSZ70 Service Manual

Controllers and Cache modules removed from control ler card cage for c larit y. Modul es are not a single unit.

The controller documentation describes procedures for:

Configuring the controller

•

Setting initial controller parameters using a maintenance terminal

•

Determining the proper method for replacing SBBs (hot-swap)

•

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

EK–SMCPP–UG. A01 1–5

NOTE

RA7000 and ESA10000 Storage Subsystems

1.2.2 SCSI Buses

There are six Ultra Wide SCSI buses associated with the controller. The ports and device addresses for the master unit are shown in Figure 1-6.

Figure 1–6 SCSI Buses

1–6 EK–SMCPP–UG. A01

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 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 1–7 Single-Ended I/O Module Location

EK–SMCPP–UG. A01 1–7

RA7000 and ESA10000 Storage Subsystems

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 1-7. In all enclosures these modules are the interconnection point between the 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 controller ports all have the same number. For example, controller port 2, SCSI bus 2, and I/O module 2 are different elements of the same bus. 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 1–8 Single-Ended I/O Module

External TERM POWER disable LED

The two VHDCI female connectors are the connection points for expanding the SCSI buses between enclosures (see Figure 1-8). These connectors are wired in parallel and act as a tri-link connector. In an expansion configuration, DIGITAL recommends that maximum cable length not exceed 1.5 m (4.6 ft.) between enclosures. DIGITAL supplies a cable kit, DS-BNK37-IE, containing the necessary cables to connect an expansion unit.

1–8 EK–SMCPP–UG. A01

Internal TERM POWER disable LED

CXO5947A

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 1-8) when the

•

internal TERMPOWER is present. Turns OFF the green internal TERMPOWER LED (see Figure 1-8) 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 1-8) when the

•

external TERMPOWER is present. Turns OFF the green external TERMPOWER LED(see Figure 1-8) 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.

EK–SMCPP–UG. A01 1–9

RA7000 and ESA10000 Storage Subsystems

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 the HSZ70 RAID array controller and the EMU. The 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 controller port connectors as follows:

•

Shelf Status Signal

subsystem power (ac and dc) and blower operation

•

SBB Swap Signal

removed from or inserted in the subsystem

•

SBB Fault Signals

address or 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

– The SWAP_L signal is asserted whenever an SBB is

– The SBB amber LED displays either the storage

1–10 EK–SMCPP–UG. A01

Chapter 1. Product Description

1.3.2 Environmental Monitor Unit (EMU)

The primary function of the EMU (see Figure 1-9) is to monitor, process, report, and display enclosure and controller environmental status information for the power supplies, temperature, blowers, configuration, SCSI addressing, I/O modules, communications, and the EMU microcode type. The EMU and controller can exchange and process this information.

CAUTION

Proper operation of an UltraSCSI subsystem requires an operational EMU and PVA in each BA370 rack m ountable enclosur e. You mus t also establish communications links between the EMUs to ensur e proper subsystem operation and error reporting.

The primary EMU function is monitoring and reporting UltraSCSI enclosure environmental status. In conjunction with the PVA and the controller, the EMU identifies controller faults and alerts the user of existing or impending failures using one or more of the following error reporting systems:

EMU LEDs

•

The EMU audible alarm

•

Error messages on the host interface

•

Enclosure system OK LED

•

Enclosure system fault LED

•

In some instances, such as blower failures or high ambient or internal enclosure temperatures, the EMU automatically initiates corrective actions (for example, operating the blowers at high speed).

When there is the possibility of component damage due to overheating, the EMU can initiate an automatic controlled power shut down.

1.3.2.1 Controller Status

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

Sound the audible alarm

•

Cause the EMU system fault status LED to flash

•

Display a controller fault code on the blower LEDs when you momentarily

•

press the Alarm Control switch

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RA7000 and ESA10000 Storage Subsystems

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

1.3.2.2 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. The EMU also reports each I/O module type to the controller. Should the 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 controller can enable or disable individual I/O module circuits, thereby controlling individual external SCSI buses.

1.3.2.3 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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Chapter 1. Product Description

1.3.2.4 EMU Front Panel

The EMU front panel contains all of the user interface controls, connectors, and displays (see Figure 1-9 and Table 1-2).

Figure 1–9

Environmental Monitor Unit (EMU)

EMU COMMUNICATIONS CONNECTOR

SYSTEM FAULT LED AND ALARM CONTROL SWITCH

EMU MAINTENANCE CONNECTOR

TEMPERATURE FAULT LED

EMU COMMUNICATIONS CONNECTOR

POWER STATUS LED

BLOWER FAULT LED(S)

EK–SMCPP–UG. A01 1–13

RA7000 and ESA10000 Storage Subsystems

Table 1–2 EMU Front Panel Component Descriptions

Component Function

EMU Com. Connector (LEFT ) System Fault LED (amber) and Alarm Control Switch

Provides inter-EMU communications to another EMU. 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

(RIGHT)

Provides inter-EMU communications to another

EMU.

1–14 EK–SMCPP–UG. A01

Chapter 1. Product Description

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 1-10) 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 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 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 1-6). They are not interchangeable.

Figure 1–10 Power Verification and Addressing (PVA) Module

As shown in Figure 1-10, the major user-accessible components of the PVA include the following:

The dc power shutoff switch includes a green power status LED

•

The UPS connector (RJ-45) for future expansion

•

The enclosure SCSI address switch that establishes the enclosure address

•

and thereby the SCSI bus Ids for each storage device

EK–SMCPP–UG. A01 1–15

RA7000 and ESA10000 Storage Subsystems

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 DIGITAL-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

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)

•

Controllers and cache memories

•

EMU

•

PVA

•

1–16 EK–SMCPP–UG. A01

Chapter 1. Product Description

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 +4.5 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 controller can continue to transfer data providing there are no other error conditions.

The loss of the POK signal for any reason causes the controller to reset and halt all data transfers. All six buses remain quiesced (no data transfers occurring) until the controller determines that power is correct. The 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 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 is only true if both controllers have been shut_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 controller of the change in status.

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

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

EK–SMCPP–UG. A01 1–17

RA7000 and ESA10000 Storage Subsystems

NOTE

If the master EM U is not communi cating with t he controller or the controller does not support a control led s hut down, t he m ast er EM U c ommands all enclosures to perform an immediate power shut down.

1.3.3.3 Expansion Enclosure Initiated Power Shutdown

NOTE

This procedure will only work when the controller(s) have been shut_down.

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

communicate with the master EMU, one of the following power

can

shutdown operations occurs:

NOTE

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

cannot

communicate

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 controller of the change in status.

4. When the 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

1–18 EK–SMCPP–UG. A01

Chapter 1. Product Description

1.3.3.4 PVA UPS (Uninterruptable Power Supply) Options

DIGITAL does not supply any options for this product. When you install an optional UPS power source, you can use the PVA to monitor its status. Connect the UPS to the UPS Connector on the front of the PVA using a 9-pin RS-232-to8-pin RJ-45 adapter cable. The PVA monitors the following UPS signals and reports the status to the EMU:

UPS installed

•

UPS has only two minutes of battery power left

•

UPS has lost ac input

•

1.4 Storage Device SBBs

The subsystem can accommodate up to twenty four 3½-inch storage device SBBs (Figure 1-11). 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 HSZ70 RAID array controller software product descriptions and release notes list the subsystem compatible SBBs.

Figure 1–11 Disk Drive SBB

DEVICE ACTIVITY (GREEN)

DEVICE FAULT (AMBER)

EK–SMCPP–UG. A01 1–19

RA7000 and ESA10000 Storage Subsystems

1.5

Power Configuration

There are two primary storage subsystem power configurations:

•

Standard

five power supply SBBs on power bus

•

Redundant

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

– 4 + 4 power configuration includes one ac power controller and four power supply SBBs on power bus A and four power supply SBBs on power bus

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.

CAUTION

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

Table 1–2 Storage Subsystem Major Power Components

Component Order No. Power Configurations

Standard Redundant

ac Power Entry Controller

Shelf Power Supply SBB

DS-BA35X-HE 1 2

DS-BA35X-HH 5 8

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 1-12) 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.

1–20 EK–SMCPP–UG. A01

Figure 1–12 AC Power Entry Controller

Chapter 1. Product Description

EK–SMCPP–UG. A01 1–21

RA7000 and ESA10000 Storage Subsystems

1.6 Power Supply SBBs

CAUTION

The subsystem requires power s uppl y SBBs r ated for at least 180 W such as the DS-BA35X-HH. You cannot use l ower rat ed s upplies , s uch as the 131 W (DS-BA35X-HA), the 145 W (DS-BA35XHD), or the 150 W (DS-BA35X-HF).

The 180 W shelf power supply SBB (Figure 1-13) 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 1–13 Typical Shelf Power Supply SBB

POWER STATUS LED (GREEN)

POWER SUPPLY STATUS LED (GREEN)

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 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 power controllers to different ac distribution circuits on the same site distribution panel.

1–22 EK–SMCPP–UG. A01

Chapter 1. Product Description

The four subsystem power supply SBBs on the left end of the shelf are connected to power controller A. The four on the right end of the shelf are connected to power controller B.

1.7 Standard (4 + 1) Power Configuration

NOTE

The black power c ord at the upper right c orner of the subsystem is used only for the standard (4 +

1) configur ati on. It is not us ed for the r edundant (4 + 4) configuration.

This standard power configuration (Figure 1-14) is the minimum configuration DIGITAL 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 – 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 power entry controller

•

Failure of the ac power source

•

Failure of the PDU (ESA10000 only)

•

EK–SMCPP–UG. A01 1–23

RA7000 and ESA10000 Storage Subsystems

Figure 1–14 Standard Power Configuration (4 + 1)

1–24 EK–SMCPP–UG. A01

Chapter 1. Product Description

1.8 Redundant (4 + 4) Power Configuration

A full redundant power configuration requires two separate power sources, two ac power controllers, and eight shelf power supplies (Figure 1-15). DIGITAL recommends this configuration to provide complete power system redundancy thereby ensuring complete data protection. Any one of the following error conditions will cause the subsystem to cease operation:

Failure of five power supply SBBs

•

Failure of both power entry controllers

•

Failure of the ac power source

•

Failure of both PDUs (ESA10000 only)

•

The primary ac source provides power to 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.

The second, or redundant, ac source provides power to 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 1–15 Redundant Power Configuration (4 + 4)

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RA7000 and ESA10000 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. Two ECBs mounted in each SBB module provide support for two cache modules. Each has a power connector, status LED, and battery disable switch (see Figure 1-15).

To check the ECB status, look at the ECB status LED (one for each cache module) for the appropriate indication (see Figure 1-16 and Table 1-3).

Figure 1–16 External Cache Battery (ECB) SBB

1–26 EK–SMCPP–UG. A01

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

The ECB SBB is mounted at the top of the SW370 cabinet. A Y-cable connects the ECB to the array controller cache module. The cache is mounted under the controller and is identified by the single plug in the middle of the module (Figure 1-17). Cache module to ECB cables are factory installed.

CAUTION

The ECB cable is configured in a “Y” for convenient r outi ng wit hin t he c abinet . The c abl e i s only to be us ed to connect ONE batt ery to ON E cache module. Do not connect both ends of the ECB “Y” cable at the same time during normal operation. See chapter 5 of this manual for ECB replacement.

EK–SMCPP–UG. A01 1–27

RA7000 and ESA10000 Storage Subsystems

Figure 1–17 Cache-to ECB-Connection

1.10 Subsystem Cooling

As shown in Figure 1-18, the subsystem is equipped with eight dual-speed blowers. These blowers pull air in from the front of the cabinet, through the SBBs, controllers and EMUs, 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 commands.

If set for automatic, the EMU switches all operational blowers from low-speed to high-speed 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.

1–28 EK–SMCPP–UG. A01

CLI Reference Manual

for the

set_emu

Figure 1–18 Dual Speed Blower Locations

Chapter 1. Product Description

EK–SMCPP–UG. A01 1–29

RA7000 and ESA10000 Storage Subsystems

1.11 Setting the PVA SCSI Address

The SCSI bus address switch on the front of the PVA module (see Figure 1-19) 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.

2. There is only one master PVA in any subsystem installation.

3. In an expansion subsystem, no two enclosures can have the same address.

4. DIGITAL does not support any PVA address that assigns SCSI bus device addresses 6 or 7 to any storage device.

5. DIGITAL 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 1–19 PVA SCSI Address Switch

DECREASE SWITCH

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.

1–30 EK–SMCPP–UG. A01

INCREASE SWITCH

Chapter 1. Product Description

1.11.1 DIGITAL Supported Master PVA Address

DIGITAL supports PVA address “0” only for the master enclosure. Figure 1-20 defines the SBB device IDs for a master enclosure, one expansion, and two expansion units. The device addresses are denoted to the right of Figure 1-20.

Figure 1–20 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

ID7 ID6

Cache module Cache module

EK–SMCPP–UG. A01 1–31

EMU

PVA

PVA Address 0/2/3

Device Address 7

Device Address 6

CXO5889A

RA7000 and ESA10000 Storage Subsystems

1.11.2 DIGITAL Supported Expansion PVA Addresses

DIGITAL 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

DIGITAL 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

DIGITAL

Address 1

•

Address 4

•

Address 5

•

Address 7

•

does not

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

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

support the following PVA SCSI bus addresses:

1–32 EK–SMCPP–UG. A01

Unpacking and Installation

for the RA7000 and ESA10000

Storage Subsystems

This chapter describes the site preparation, unpacking, and installation procedures for the RA7000 and ESA10000 Storage Subsystems.

2.1 Installing the RA7000

2.1.1 RA7000 Site Preparation

The RA7000 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 RA7000 Minimum Installation Clearance Measurements

482.60 mm (19.00 in)

FRONT DOOR

EK–SMCPP–UG. A01 2–1

DS-SWXRA-H

539.75 mm

(21.25 in)

482.60 mm (19.00 in)

RA7000 and ESA10000 Storage Subsystems

2.1.2 Unpacking the RA7000 Subsystem Enclosure

The storage cabinet is packed in a corrugated carton attached to a wooden shipping pallet, as shown in Figure 2-2A. Unpack the cabinet as follows:

NOTE

Before unpacking the equipment, inspect the shipping carton for signs of external damage. Report any dam age to the local carrier and to your sales representative.

1. Remove the shipping straps (Figure 2-2A).

2. Remove the top cover (Figure 2-2B).

3. Remove the ramp from the top of the shipping carton (Figure 2-2B) and set

it aside for subsequent use in moving the cabinet off the pallet.

4. Remove the two foam cushions from the top of the cabinet container (Figure

2-2B).

5. Remove the cardboard carton surrounding the expansion cabinet

(Figure 2-2B).

6. Remove the plastic barrier bag (Figure 2-2C).

7. Once the cabinet is exposed (Figure 2-2D), examine the equipment for any

apparent damage. Report any problems immediately to your sales representative.

2–2 EK–SMCPP–UG. A01

Chapter 2. Unpacking and Installation

Figure 2–2 Unpacking the RA7000 Storage Enclosure

2.1.3 Removing the RA7000 from the Pallet

Use the following procedure to remove the storage cabinet from the shipping pallet:

Serious personnel injury may result if correct safety precautions are not taken during the removal procedure.

EK–SMCPP–UG. A01 2–3

WARNING

RA7000 and ESA10000 Storage Subsystems

1. Attach the ramp to the shipping pallet by fitting the lip of the ramp into the groove on the pallet, as shown in Figure 2-3.

Figure 2–3 Installation of Ramp on Shipping Pallet

2. Lift the lock lever on each front caster to its up position so that the storage cabinet can be moved.

WARNING

We recomm end that three people be as signed to the task of unloadi ng the c abinet fr om it s shi pping pallet. Failure to use sufficient personnel may result in personnel injury and equipment damage.

CAUTION

Do not drop the storage cabinet from a height of more than two inches as serious structural damage can result.

2–4 EK–SMCPP–UG. A01

Chapter 2. Unpacking and Installation

3. Grasping the sheet metal base assembly, carefully lift the rear of the storage cabinet over the “hump” in the center of the pallet and then roll the cabinet off the pallet and down the ramp to the floor. If any further lifting of the cabinet is required, grasp the sheet metal base assembly on the side and lift it carefully.

4. Retain the shipping container and all packing materials.

2.1.4 Placing the RA7000 Storage Enclosure

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

WARNING

To prevent damage to the cabinet and injury to personnel, make sur e to provide a cl ear path for the casters.

1. Roll the expansion cabinet to the desired location.

2. If required, engage the lock on each front caster to prevent the cabinet from moving.

2.1.5 Connecting the Enclosure to the Host

Refer to the

Getting Started Installation Guide

describing how to connect the RAID Array 7000 subsystem to the host.

for specific instructions

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RA7000 and ESA10000 Storage Subsystems

2.2 Installing the ESA10000

2.2.1 Site Preparation

Before installing the ESA10000, ensure that adequate space is available in front of the enclosure for opening the front door and around the enclosure for adequate airflow. See Figure 2-4 for specific space requirements.

Figure 2–4 Minimum Installation Clearance Measurements

600 mm (23.6 in)

Rear door

Front door

SW600-series

cabinet

(Top view)

600 mm (23.6 in)

900 mm (35.4 in)

600 mm (23.6 in)

2100 mm (82.7 in)

CXO5825A

2–6 EK–SMCPP–UG. A01

Chapter 2. Unpacking and Installation

2.2.2 Unpacking the ESA10000 Subsystem

The ESA10000 comes wrapped in shrink wrap and attached to a wooden shipping pallet. European shipments are also packaged with an outer corrugated cardboard piece, which must be removed first. On the outside of both types of packages, there resides an international de-skidding label, showing how to deskid the cabinet. Under the first layer of shrink wrap is the international unpacking labels, showing how to unpack the ESA10000 and further instructions on how to de-skid the ESA10000 cabinet. Unpack the unit as instructed by the international unpacking label. See Figure 2-5.

NOTE

Before unpacking the equipment, inspect the shipping carton for signs of external damage. Report any dam age to the local carrier and to your sales representative.

Figure 2–5 Shipping Container Contents

EK–SMCPP–UG. A01 2–7

RA7000 and ESA10000 Storage Subsystems

After using the international unpacking label information to unpack your ESA10000, follow the de-skidding instructions on the international unpacking label and the information on the international de-skidding label to push the ESA10000 off the shipping pallet, keeping in mind the following warnings and cautions.

WARNING

Serious personnel injury can result if correct safety precautions are not taken during the removal procedure.

We recomm end that three people perform the task of unloading the ESA10000 SW600 cabinet from its shipping pallet. Failure to use sufficient personnel can result in personnel injury and equipment damage.

The following procedure, along with the international unpacking label and Figure 2-5, will help you to remove the ESA10000 from the shipping pallet:

1. Remove the cover, the fasteners, and the corrugated board from the pallet.

2. Remove the cartons containing the ramp set and skirt kit and set them aside.

3. Cut the shipping straps. Some cabinets are packaged in a plastic or barrier bag. If the cabinet arrives in a plastic bag, leave the bag in place until the cabinet has adjusted to the local temperature and humidity.

4. Once the cabinet is unpacked, examine the front and rear doors, right and left side panels, top panel, and undercarriage for any apparent damage. Report such problems immediately.

5. Retain the shipping container and all packing materials.

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Chapter 2. Unpacking and Installation

2.2.3 Removing the ESA10000 from the Pallet

Use the following procedure to remove the cabinet from the shipping pallet:

1. Remove any packing material remaining on the pallet.

2. Remove the two unloading ramps from the carton and inspect them.

WARNING

Serious personal injury may resul t if correct safety precautions are not observed during the unpacking procedure. All personnel should wear safety glasses. The ramps, ramp side rails, and metal hardware should be inspected for the following defects:

• Cracks more than 25 percent of the ramp depth, either across or lengthwise on the ramp.

• Knots or knotholes going through the thickness of the ramp and greater than 50 percent of the ramp width.

• Loose, missing, or broken ramp side rails.

• Loose, missing, or bent metal hardware.

If any of thes e def ect s ex is t, do not us e the r amp. Investigate alternate means of removing the cabinet or order a new ramp. (The part number for the ramp set is 99-08897-05.)

3. Attach the ramps by fitting the metal prongs into the holes on the pallet, as shown in Figure 2-6. Make sure that the arrows on the ramps match up with the arrows on the pallet.

EK–SMCPP–UG. A01 2–9

RA7000 and ESA10000 Storage Subsystems

Figure 2–6 Shipping Pallet Ramp Installation

4. Extend the ramps to their full length.

5. See Figure 2-7 for the location of the shipping bolts. Remove the bolts.

6. Remove the shipping brackets, shown in Figure 2-7, from the cabinet levelers and set them aside.

2–10 EK–SMCPP–UG. A01

Figure 2–7 Shipping Bolts and Brackets

WARNING

Chapter 2. Unpacking and Installation

The levelers mus t be r ai sed f ull y for t he cabi net t o roll easily down the unloading ramps. Failure to do so may res ult in per s onnel i njur y as a res ult of the cabinet tipping off the pallet or ramp

7. Loosen the leveler locking nuts and screw the four cabinet levelers all the way up into the cabinet.

EK–SMCPP–UG. A01 2–11

RA7000 and ESA10000 Storage Subsystems

WARNING

Three people are required to unload the cabinet from the shippi ng cabinet. Fai lure t o use s uffi cient personnel may result in injury and equipment damage.

8. Carefully roll the cabinet off the pallet and down the ramps to the floor as shown in Figure 2-8.

Figure 2–8 Removing the Cabinet from the Pallet

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Chapter 2. Unpacking and Installation

2.2.4 Moving the ESA10000 to It’s Designated Site

WARNING

Using extreme caution when rolling the cabinet across the floor. Failure to raise all leveler feet and to provide a clear path for the cabinet's caster s may res ult in t he c abinet tippi ng over and injury to personnel.

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.

2.2.5 Joining Adjacent ESA10000s

NOTE

Skip to Sec tion 2. 2.7 “Lev eling t he Cabinet” if y ou do not have to join adjacent ESA10000 cabinets.

A cabinet joiner kit comes secured within the ESA10000 packaging. Use the joiner kit to join two ESA10000 cabinets. In the joiner kit are instructions to position the cabinets, to remove the side panels, to install the necessary joiner kit hardware, to use the supplied Allen wrench, and how to complete the procedure by installing trim pieces onto the cabinets. The following text will also help you to start and complete the joining procedure, as you are referring to the instructions contained in the joiner kit.

When joining two ESA10000’s, the recommended configuration is to have the cabinet that resides on the left (viewed from the front) to have two BA370’s installed with no controllers and for the cabinet that resides on the right to have one BA370 in the bottom position with controllers installed in that BA370.

EK–SMCPP–UG. A01 2–13

RA7000 and ESA10000 Storage Subsystems

You must first remove one of the side panels from each cabinet before the joiner kit can be installed. Refer to the joiner kit instructions and follow this procedure.

1. Open the back door of the cabinet to gain access to the screw attaching the side panel to the cabinet.

2. Use a standard 5/16” nut driver or wrench to remove the single screw holding the side panel to the rear vertical rail. The SW600 has only one screw attaching the side panel to the cabinet. That screw is on the bottom, rear vertical rail of the cabinet and is accessible from the inside of the cabinet. You will install a shoulder bolt into that hole later as well as into the corresponding hole in the front of the cabinet. Cabinet upper and lower brackets on which the side panel rests hold the side panel in place.

3. From the outside of the cabinet, lift the side panel up and off. This may require two people.

4. Store the side panel. Repeat Steps 1 through 4 for the other side panel.

5. Continue the joining process.

6. Position the two cabinets you are about to join next to each other, allowing ample room to walk around both cabinets

7. As you face the front of the cabinets, position the cabinet containing controllers to the right. Position the cabinet with no controllers to the left.

8. The correct side panels should already be removed.

9. From the outside of the left cabinet, screw a large head shoulder bolt into the top hole below the rectangular cutout in the lower part of the cabinets vertical rail (the hole from which you previously removed the screw that held the side panel onto the cabinet). Screw a second large head shoulder bolt into the front vertical rail hole that corresponds to the rear side panel screw hole.

10. Using two screws provided, attach the top trim piece to the right cabinet.

11. Stand facing the side of the left cabinet (the side with the panel removed). Install kep nuts over holes 9 and 12 from the top of the vertical cabinet rails, front and rear. Install kep nuts over holes 9 and 12 from the bottom of the vertical cabinet rails, front and rear.

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Chapter 2. Unpacking and Installation

12. Still facing the side with the panel removed, install a latch on the left front top vertical cabinet rail through the kep nuts with the 10/32” screws provided. Install a receiver on the right front top of the vertical cabinet rail through the kep nuts with the 10/32” screws provided.. As you are standing facing the side of the cabinet with the side panel removed, latches and receivers should be oriented with the black colored part of the assemblies facing outwards. Repeat this step at the bottom of the cabinet, again with the latch to the left and the receiver to the right as you are facing the cabinet side with the side panel removed. Note that the latch has the movable part while the receiver does not.

13. Turn and face the side of the other cabinet with the sidepanel removed. Repeat the procedure in Step 7 for the second cabinet.

14. Roll the two cabinets close together, aligning the joiner latches to the joiner receivers.

15. Insert the large Allen wrench (provided) into one of the tool receptacle holes on a bottom latch and turn clockwise to latch. Turn until the receiver and latch “clicks” into place. Continue turning the Allen wrench until it can not be turned further. Repeat for the other bottom joiner latch. Repeat for the top joiner latches.

16. Slide the notch at the bottom of the front trim bracket over the large head bolt that you attached to the lower front side of the left cabinet. Rotate the upper part of the front trim bracket so that it slides in beneath the top trim piece, which was installed in Step 5, and lock into place with a screw through the top trim piece.

17. Slide the notch at the bottom of the rear trim bracket over the large head bolt that you attached to the lower rear side of the left cabinet. Rotate the upper part of the rear trim bracket so that it slides in beneath the top trim piece, installed in Step 5, and lock into place with a screw through the top trim piece.

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RA7000 and ESA10000 Storage Subsystems

2.2.6 Leveling the Cabinet

Level the cabinet in its final position as follows:

1. Loosen the locknuts on all four leveler feet as shown in Figure 2-9.

2. Turn each leveler hex nut clockwise until the leveler foot contacts the floor.

3. Adjust all four feet until the cabinet is level and the load is removed from all casters. Verify that the casters spin freely.

4. Tighten the locknuts on all four leveler feet.

Figure 2–9 Leveler Foot Adjustment

2.3 Installing Additional Components

The following sections describe the procedures for installing additional components into the ESA10000 data center cabinet.

2.3.1 Installing the BA370 Rack-Mountable Enclosure

You may wish to install an additional BA370 rack-mountable enclosure into your ESA10000 to expand the storage capacity. The BA370 is shipped with a rack mounting kit containing mounting rails of the SW600 cabinet, and to the sides of the BA370.

2–16 EK–SMCPP–UG. A01

mounting rails

, which you install onto the vertical

mounting brackets

, which you attach

Chapter 2. Unpacking and Installation

You must first install the BA370 mounting rails into the SW600 cabinet. Ensure proper orientation of the rails by referring to Figure 2-10 while visually inspecting the rails and reading the following text. It is very important that the rails be installed into the SW600 cabinet properly oriented or the BA370 will not install. The front of the rail has three protruding studs, with an alignment tab approximately five inches behind the studs. The front of the mounting rail is installed towards the front of the cabinet with the alignment tabs facing the cabinet side panels and with the three protruding studs through designated holes in the SW600 cabinet front vertical rails. The rear of the rail has a U-shaped flange and two screw holes, one in the U-shaped flange and one in the rail itself. The rear of the mounting rail is installed towards the rear of the cabinet. The bottom of the rail has a flange running the entire length of the rail. The top of the rail has a flange that runs most of the length of the rail from the rear of the rail to approximately two inches from the front of the rail. Use Table 2-1 and Table 2-2 as a guide for installing the mounting rails into the proper holes of the vertical mounting rails of the SW600 cabinet and refer to Figure 2-10 and 2-11.

EK–SMCPP–UG. A01 2–17

RA7000 and ESA10000 Storage Subsystems

Figure 2-10 Mounting Rail Orientation

Upper stud

Middle stud

Lower stud

Alignment tab

Table 2–1 Installing Rails for the Upper BA370

Rail Top Hole Bottom Hole

Upper BA370 , upper left rail 4 6 Upper BA370, lower left rail 26 28 Upper BA370, upper right rail 7 9 Upper BA370, lower right rail 24 26

If using Table 2-1, count the holes from the top of the SW600 cabinet.

Rear mounting hole

CXO5932A

Table 2–2 Installing Rails for the Lower BA370

Rail Top Hole Bottom Hole

Lower BA370 , upper left rail 28 26 Lower BA370 , lower left rail 6 4 Lower BA370, upper right rail 25 23 Lower BA370, lower right rail 8 6

If using Table 2-2, count the holes form the bottom of the cabinet.

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Chapter 2. Unpacking and Installation

1. Position the mounting rails in the hole positions indicated by Tables 2-1 or 2-2. The upper and lower studs on the front of the mounting rail align with the indicated holes in the front of the SW600 cabinet. The alignment tab slides into a hole on the inner front vertical rail of the SW600 cabinet that corresponds to the middle stud of the mounting rail. Attach the front of the mounting rail to the front of the cabinet using 2 5/16” nuts on the top and bottom studs of each rail and tighten. Refer to Figure 2-11.

DO NOT

attach a 5/16” nut to the middle stud of the mounting rail. This is reserved for locking the BA370 into the cabinet.

2. Slide four U-Nuts onto the rear vertical rails of the SW600 cabinet and over the obvious holes that correspond to the rear mounting holes of the SW600 cabinet’s vertical rails, as shown in Figure 2-11. Attach the rear of the mounting rails to the SW600 cabinet by inserting a 10/32” X 5/8” screw through the holes in the mounting rails, through the rear vertical rails of the SW600 and through the U-nuts. Because the front of the mounting rail is already attached to the SW600 cabinet, the rear hole on the mounting rail should automatically align with the proper hole on the rear vertical rail of the SW600 cabinet. If you have doubts on proper rear hole alignment, count the number of holes on the front of the SW600 cabinet up to the middle stud of the mounting rail. The rear screw attachment hole should correspond to the middle stud hole on the front of the mounting rail as well as to the alignment tab hole.

Figure 2–11 Rail Installation into Cabinet

Stud

Middle stud

5/16" nut

EK–SMCPP–UG. A01 2–19

U-nut

10/32" screw

CXO5933A

RA7000 and ESA10000 Storage Subsystems

3. At this time, install the ECB into the right position (viewed from the rear) of the ECB shelf, as shown in Figure 2-11. Install two ECB Y-cables , as shown in Figure 2-12 and tie-wrap them to the SW600 cabinet’s inner vertical rails. These cables will be connected to the ECB during a later step in this procedure.

Figure 2–12 ECB Position

ECB

CXO5827A

Figure 2–13 Installing ECB Y-Cables

External cache battery

2–20 EK–SMCPP–UG. A01

Cache module

Unconnected

CXO5928A

Chapter 2. Unpacking and Installation

Now you must attach the

mounting brackets

to the BA370 rack mountable

enclosure.

1. Attach the mounting brackets to the sides of the BA370 using the two 8/32” X 1/4” screws provided as shown in Figure 2-14. Notice that the mounting bracket’s screw holes are one slot and one hole. Position the bracket so that the slot is towards the front of the BA370. Install the screw into the screw hole and tighten. Install the second screw into the screw slot and tighten. Note that once attached, the bracket extends further towards the rear of the BA370 than it does towards the front of the BA370.

Figure 2–14 Attaching Mounting Brackets to the BA370

Slot Hole

Now you are ready to install the BA370 rack-mountable enclosure into the ESA10000 cabinet. Use the following procedure.

EK–SMCPP–UG. A01 2–21

10"

CXO5934A

RA7000 and ESA10000 Storage Subsystems

WARNING

Installing the BA370 into an ESA10000 requires two people. Never attempt to lift the BA370 by yoursel f. Doing so may cause i njury, damage t he equipment, or both. Nev er i ns tal l a BA370 int o the upper posit ion of an ESA10000 unles s there is a BA370 residing in the lower position already. Doing so may cause injury, damage the equipment, or both. Never attempt to install the BA370 with SBBs ins t all ed. You mus t f ir s t r emove all power supply and disk drive SBBs from the BA370 before completing this installation.

Serious personnel injury can result if correct safety precautions are not taken when installing the BA370 rack-mountable enclosure

1. If power is applied to the cabinet, power down the HSZ70 controllers by following the procedure contained in the

Array Controller HSOF Version 7.0 Service Manual

DIGITAL StorageWorks HSZ70

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

2. When you install an additional BA370 into the cabinet, you must also install and tie-wrap the external cache battery (ECB) cable that connects the HSZ70 controller to the ECB. Your ESA10000 comes precabled for ac power. For the bottom BA370, tie-wrap each ECB cable to the bottom hole on both front vertical siderails of the SW600 cabinet in the general vicinity of the ac power cables that come pre-installed and tie-wrapped. For the top BA370, tie wrap each ECB cable in the general vicinity of the ac power cords tie-wrapped to the SW600 vertical rails Leave the ECB cable extended in the front approximately 10 inches. This ensures that the ECB cables can be plugged into the cache modules. Tie wrapping ensures that the ECB cables are not damaged when you install a BA370.

3. Tuck the ECB cables and ac power cords behind the front vertical rail of the BA370. Remember you left the ECB cables extended by 10 inches. Failure to tuck the cables behind the cabinet rails may cause damage to the cables when you install the BA370 into the cabinet.

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Chapter 2. Unpacking and Installation

4. Position the BA370 on the floor in front of the cabinet. Remove supply and disk drive SBBs from the BA370

BEFORE

attempting to lift the

ALL

power

BA370.

5. With obe person on each side of the BA370, grasp the BA370 by the mounting bracket with one hand and by the front top bank of the BA370, with the other hand. Lift the BA370 up, matching the mounting brackets with the mounting rails, and slide the BA370 into the SW600 cabinet

way

until the fans enter the cabinet

half

6. Plug the four-wire front door LED cable harness, which is tie-wrapped along with the ac input power cables to the SW600 vertical rails, into the LED cable harness on the top of the BA370.

7. Ensure all cables, LED, ECB and ac power, are out of the way and cannot be damaged when the BA370 is slid entirely into the cabinet. Slide the BA370 into the cabinet until it stops.

8. Lock the BA370 into place by attaching a 5/16” nut over the middle stud on the front of each mounting rail. In the rear of the cabinet, use a 10/32” screw through the screw holes of the mounting rails and brackets. Refer to Figure 2-11. This effectively locks the BA370 securely into the SW600 cabinet.

9. Ensure the ac power distribution unit (PDU) circuit breaker is off and the ac input power controller switch on the ac input power controllers is off.

10. Re-install all power supply and disk drive SBBs into the BA370.

11. For 4+1 power redundancy, plug black power supply cables into all left-hand power supply SBBs and one black power cable into the right, top most power supply SBB. Refer to Figure 1-14 in

Chapter 1

of this manual. For 4+4 dual power redundancy, plug all black power cords into all left-hand power supply SBBs and plug all white power cords into all right-hand power supply SBBs. Refer to Figure 1-15 in

Chapter 1

of this manual.

12. Ensure the HSZ70 controllers, EMU, and PVA are seated in the BA370 in their proper locations. Also plug the ac power cord(s) into the ac input power controller(s) on the front of the BA370.

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RA7000 and ESA10000 Storage Subsystems

13. 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 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 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.

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

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

NOTE

One DS-BNK37-1E cable k it is requir ed for each expansion unit.

2.4.1 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. The last step is to set the PVA address.

2.4.2 Attaching the SE I/O Cables

Figure 2–15 SE I/O Port Identification

642

531

There is a separate cable for each port of the controller and all cables are identical. Refer to Figure 2-15 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).

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Chapter 2. Unpacking and Installation

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.

Secure the cable by tightening the cable connector jackscrews.

NOTE

Do not omit the tightening of the jackscrews. There is not enough c ontact pres sure to hold the cables in place between enclosures.

Slide the cable clip along the cable and press it into the hole of the I/O module bracket.

2.4.2.1 Cabling for One Expansion Unit

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

terminated

side of the expansion unit. The terminated side

terminated

is identified by the resistor symbol, it is also the LEFT-hand connector of the SE I/O module. See Figure 2-16.

Figure 2–16 SE I/O Port Wiring (One Expansion Unit)

642

side of the I/O module on

EK–SMCPP–UG. A01 2–25

531

Cable A

642

531

CXO5840A

RA7000 and ESA10000 Storage Subsystems

2.4.2.2 Cabling for Two Expansion Units

For two expansion units, cable from the the master unit to the unit. Then connect from the expansion unit to the

terminated

unterminated

terminated

side of the I/O module on the first expansion

side of that I/O module on first

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 RIGHThand connector of the SE I/O module. See Figure 2-17.

Figure 2–17 SE I/O Connections for Two Expansion Units

642

531

642

531

642

Cable A

Cable B

side of the I/O module on

531

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CXO5841A

Chapter 2. Unpacking and Installation

2.4.3 Attaching the EMU Communications Cable

Figure 2–18 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)

Connect the EMU Communications cable from one EMU communications port (See Figure 2-18) of the master RA7000 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 2-19.

Figure 2–19 Multiple EMUs Connected Together

CXO5820A

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RA7000 and ESA10000 Storage Subsystems

2.4.4 Setting the PVA Addresses

Figure 2–20 PVA Module Front Panel

DIGITAL supports enclosure addresses 2 and 3, only for expansion enclosures. Figure 2-21 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

DIGITAL does not suppor t any enc losur e addres s 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

00 22

PVA Address Switch Setting for Three BA370 Rack Mountable Units

Expansion Enclosure Second

N/A 3

Expansion Enclosure

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Chapter 2. Unpacking and Installation

Figure 2–21 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

ID7 ID6

Cache module Cache module

EK–SMCPP–UG. A01 2–29

EMU

PVA

PVA Address 0/2/3

Device Address 7

Device Address 6

CXO5889A

RA7000 and ESA10000 Storage Subsystems

2.5 Connecting SCSI Bus Cables to the ESA10000

The internal SCSI bus cabling of two BA370’s within an ESA10000 cabinet as well as the SCSI bus cabling between a master and expansion cabinet is shown in Figure 2-22. The cabling scheme is to route the upper BA370’s I/O module number 1’s left port to the lower BA370’s I/O module number 1’s right port. Route the upper BA370’s I/O module number 2’s left port to the lower BA370’s I/O module number 2’s right port. Follow this cabling scheme for cabling SCSI bus cables in an ESA10000 that contains two BA370’s.

To expand the SCSI bus from a master cabinet to an expansion cabinet, route the lower BA370’s SCSI bus cables from I/O module number 1’s left port to the expansion cabinet’s I/O module number 1’s left port. Notice for expansion that the cables run from the left port of the master cabinet to the left port of the expansion port, just the opposite as for SCSI bus cabling between two BA370’s that reside in the same cabinet. Again refer to Figure 2-22 for help in routing SCSI bus cables.

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 cable is figured from SE I/O module to SE I/O module with no devices installed in the middle, the cables may be extended to 20 meters due to the isolation and re-timing circuitry of the SE I/O module.

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Chapter 2. Unpacking and Installation

Figure 2–22 SCSI Bus Cabling for the ESA10000

Expansion cabinet Master cabinet

642

531

642

531

EK–SMCPP–UG. A01 2–31

64 2

CXO5931A

RA7000 and ESA10000 Storage Subsystems

2.6 Installing SBBs

This section describes the procedures for installing Storage Building Blocks (SBBs) into a BA370 rack mountable enclosure. The SBBs consist of disk drives, power supplies, and the external cache battery.

2.6.1 Installing SBB Disk Drives

Initial and additional disk SBBs may be installed into the BA370 rack-mountable enclosure. The recommended procedure for installing disk SBBs is to install them into the enclosure bottom to top and from left to right as viewed from the front of the enclosure.

Use the following guidelines when installing Disk SBBs into the BA370(s):

1. Install the 9GB Disk SBBs into each BA370

2. Fill the BA370 from bottom shelf to top shelf

3. Fill each shelf in a left to right order

4. Repeat this process for the 4GB Disk SBBs

5. Repeat this process for the 2GB Disk SBBs Before beginning the Disk SBB installation process, group the Disk SBBs

according to capacity. If there is more than one BA370 enclosure involved, divide each of the groups by total number of BA370 rack mountable enclosures. Now distribute the disks (by capacity) amongst the BA370s. The goal is to spread the disks across the BA370s to ensure that a raidset is not all on one BA370. It is not necessary to favor the master BA370 [the one with the HSZ70 controller(s)] over the expansion enclosure(s).

Example:

DISK TYPE TOTAL NUMBER

OF DISKS BY TYPE

RZ1DB, 9GB, WIDE Ultra RZ1CB, 4GB, WIDE Ultra RZ1BB, 2GB, WIDE Ultra

To install an SBB disk drive, 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.

2–32 EK–SMCPP–UG. A01

NUMBER OF DISKS IN

MASTER 945 532 312

NUMBER OF DISKS IN EXPANSION

Chapter 2. Unpacking and Installation

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. Devices installed must be listed in the HSOF Ultra 70 Solutions Software SPD.

4. Device address 4 and 5 are used only when the disk drive SBB has a device address switch.

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

6. For the addressing of SBB disk drives on the SCSI bus, device addresses for each SBB in each extender cabinet are determined by the PVA address. The main cabinet’s PVA address is set to PVA address 0 and device addresses in that cabinet have addresses 0 through 3. The PVA address in the first extender cabinet is set to PVA address 2 and device addresses in that extender cabinet have addresses 8 through 11. The PVA in the second extender cabinet is set to PVA address 3 and device addresses for that extender are from 12 through 15. Figure 2-21 helps to illustrate the addressing scheme.

Figure 2-21 shows the six Ultra Wide SCSI buses and their associated ports and device addresses.

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RA7000 and ESA10000 Storage Subsystems

2.6.2 Installing SBB Power Supplies

Each SBB power supply 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 2-23 during the installation.

Figure 2-23 Installing Power Supply SBB (4+1 Shown)

SBB power supply

AC power controller

1. Insert the SBB power supply 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 SBB power supply.

3. Turn on the AC input power controller.

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

5. 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 input power controller has failed, or the SBB power supply just installed has failed.

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Chapter 2. Unpacking and Installation

2.6.3 Installing the AC Input Power Controller

There are no external indications of a power controller failure on the ac power controller itself. Both status LEDs on the power supply being off indicate a possible power controller failure. Use the following procedure to install a new AC power controller. Refer to Figure 2-23.

1. Press 0 on the AC input power controller ON/OFF switch.

2. Insert the AC input power controller into the ESA10000 enclosure .

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

4. Connect the AC power cord to the power controller.

5. Press I on the AC power controller ON/OFF switch.

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

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RA7000 and ESA10000 Storage Subsystems

2.6.4 Installing the External Cache Battery (ECB)

Install the external cache batteries (ECBs) into the ESA10000 into the ECB shelf mounted in the rear of the cabinet. Refer to Figure 2-24.

Figure 2–24 Installing the External Cache Batteries

ECB

The following procedure details external cache battery installation

1. Insert the external cache battery into the guide slots of the rear mounted shelf.

2. Push in the external cache battery until it seats firmly into the shelf and the mounting tabs engage the shelf.

3. Connect the ECB cable between the cache module and the ECB.

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CXO5827A

Configuring the Storage Cabinet

This chapter describes configuration rules and restrictions for configuring the Environmental Monitor Unit. When specific rules and restrictions are not provided, references are given to the proper StorageWorks documentation.

3.1 Configuring the Storage Cabinet

Configuring the storage cabinet is primarily configuring the EMU. Configuring the EMU requires connecting the EMU communications bus and then using the CLI SET_EMU command to establish the following:

Enclosure backplane temperature sensor set points on all enclosures

•

– SENSOR_1 or SENSOR_1_SETPOINT = DEFAULT – SENSOR_2 or SENSOR_2_SETPOINT = DEFAULT

EMU module internal temperature sensor set point SENSOR_3 or

•

SENSOR_3_SETPOINT = DEFAULT The blower speed controls of either FANSPEED = HIGH or FANSPEED =

•

AUTOMATIC

DIGITAL recommends setting the FANSPEED to AUTOMATIC, unless (1) the ambient temperature is in excess of 38ºC (100ºF), (2) there is no air conditioning, or both conditions exists. Should these conditions exist, DIGITAL recommends setting the FAN SPEED to HIGH.

For inst ructions on us ing these commands , refer

CLI Reference Manual

to the

EK–SMCPP–UG. A01 3–1

NOTE

RA7000 and ESA10000 Storage Subsystems

3.1.1 Connecting the EMU Communications Bus

In an expansion configuration you must establish communications between the master EMU and each of the expansion EMUs. This is accomplished by connecting a communications port on each EMU to a communications port on another EMU. By establishing an EMU communications bus chain you ensure that the master EMU can monitor and control all the enclosures in the UltraSCSI subsystem.

DIGITAL recommends that you use a BN25G cable no longer than 4 m (13.1 ft.) to connect the EMUs.

3.1.2 Setting the Temperature Sensors

There three temperature sensors in each UltraSCSI enclosure – two on the rear of the backplane in the top middle and one mounted on the EMU module. You have the option of setting the temperature at which an individual sensor reports an over-temperature condition. You enter the desired temperature in degrees Celsius (°C) within the range of 0ºC (32°F) through 49°C (120°F). See Table 3–3 for the relationship between °C and °F (Fahrenheit).

The EMU sensor monitors the input, or ambient, air temperature while the two enclosure sensors monitor the exhaust air temperature. The exhaust air temperature can be higher than the ambient air temperature.

For each of the three sensors you have the option of selecting SENSOR_n_SETPOINT = DEFAULT which establishes a set point of 35°C (95°F). DIGITAL recommends that you use this setting for all three sensors.

Should the ambient temperature regularly be higher than 35°C (95°F), DIGITAL recommends you select a temperature setting that ensures the continued operation without endangering the components. Setting the temperature sensors to the highest expected ambient temperature should ensure optimum operation.

To ensure proper operation, enter all temperatures in °C. You cannot enter t emperat ur es as f rac t ions , decimals, or in °F.

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CAUTION

Chapter 3. Configuring the Storage Cabinet

Table 3–1 EMU Set Point Temperatures

°C °F °C °F °C °F ºC °F °C °F

0 3210502068308640104 1 3411522170318841106 2 3612542272329042108 3 3713552373339143109 4 3914572475349344111 5 4115592577359545113 6 4316612679369746115 7 4517632781379947117 8 46186428823810048118 9 48196629843910249120

In an expansion configuration (two or more enclosures operating with the same controller) you only set the master EMU temperatures. The temperature set points for the other UltraSCSI enclosures, the “slaves”, automatically change to match the setting for the master EMU.

3.1.3 Setting the Blower Speed Control

The UltraSCSI enclosure blowers normally operate at low speed and provide sufficient air flow to cool the enclosure components and ensure proper operation. You can use the CLI FANSPEED command to change the operating speed of the blowers.

When you set FANSPEED = HIGH all blowers in all enclosures operate at

•

high speed When you enter FANSPEED = AUTOMATIC the local EMU controls the

•

blower speed in each enclosure.

DIGITAL recommends using the FANSPEED = AUTOMATIC command to enable the EMU in each enclosure to implement corrective action whenever any one of the following error conditions occurs:

A blower fails

•

You remove a blower

•

A blower is rotating too slowly to provide sufficient air flow

•

The ambient air temperature (EMU intake) exceeds the user defined

•

temperature. Either backplane (exhaust) temperature exceeds the user-defined

•

temperature

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RA7000 and ESA10000 Storage Subsystems

When the EMU detects any of these error conditions, it will automatically switch all the operational blowers to high speed, thereby increasing the air flow through the enclosure to reduce the possibility of component failure. Simultaneously, the EMU can initiate the following actions:

Enable the audible alarm on the EMU

•

Turn on the amber System Fault LED whenever the temperature exceeds

•

one or more set points Turn on the amber Temperature Fault LED

•

Notify the controller of the error condition

•

Start the EMU 8-minute timer when (1) all blowers in a bank are defective,

•

or (2) a blower is removed.

NOTE

Removing a blower significantly changes the air flow pattern wi thin the enclos ure. This c an cause an over-temperature condition in a very short time. Ther efore, t his condi tion st arts the 8-m inute timer.

When you momentarily depress the Alarm Control switch the EMU audible alarm will turn off and the fault status LEDs remain on, At this time, the blower LEDs will display the system fault codes (see EMU System Fault Code Displays).

3.1.4 Alarm Control Switch

Whenever a power, environment, or blower error or fault condition occurs, the EMU turns on the local audible alarm. At the same time, the alarm sounds and an amber LED in the switch turns on. The alarm remains on until one of the following conditions occurs:

Correction of the error condition

•

The user momentarily presses the Alarm Control switch

•

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Chapter 3. Configuring the Storage Cabinet

When you momentarily press the switch you turn off the audible alarm for all current error conditions in the local subsystem. The alarm remains off until one of the following conditions occurs:

One hour elapses

•

A different fault occurs

•

An existing fault clears and re-occurs

•

When you press and hold the switch for at least 5 seconds you clear all the fault codes.

NOTE

The Alarm Control switch does not affect either the error condition or the error code. Only correcting the error condition will clear the error code.

During a controlled power shut down, the Alarm Control switch functions as an enclosure power switch. When a controlled power shut down isin affect, you must press the Alarm Control switch to restore dc power to the enclosure.

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Error Analysis and Fault Isolation

This chapter describes the errors, faults, and significant events that can occur during t he storage subsystem initialization and normal operation. The chapt er pr ovides a description of the events and how to respond. The er r or and event descriptions isolate failures t o the field replaceable unit (FRU). Refer to Chapter 5 for a list of FRUs.

4.1 Storage Subsystem Error Reporting

There are multiple light emitting diodes (LEDs) that display error conditions. The two most easily observed are the subsystem front panel (Figure 4–1). You must then use the EMU front panel ((Table 4–1), the power supply LEDs, the storage SBB LEDs, and the controller LEDs to isolate the error condition to a component.

The front panel LEDs are simple System OK LED; the amber LED is the Fault LED. When the Fault LED is ON you must check all the other status LEDs to determine the cause of the error.

go–no go

indicators. The green LED is the

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RA7000 and ESA10000 Storage Subsystems

Figure 4–1 Storage Subsystem Status LEDs

(RA7000 Shown)

The ESA10000 cabinet has Subsystem LEDs mounted in the c abinet door and in a small panel above each BA370 Rack Mountable Enclosure. The cabinet door LEDs permit the operator to determine the Subsystem status without opening the cabinet door.

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Chapter 4. Error Analysis and Fault Isolation

Table 4–1 Subsystem Status LEDs

When the LED display is. . . The subsystem status is . . .

Operating normally; there are no error conditions.

There is a failed subsystem component.

Recommended Corrective Actions:

Check the EMU control panel LEDs to determine which component has failed.

2. Check the host to determine and replace the failed component.

The subsystem does not have power applied or is in a RESET state.

Recommended Corrective Actions:

Check the EMU control panel LEDs to determine which component has failed.

Check that there are at least four operational SBB power supplies.

Check the system terminal for error messages.

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RA7000 and ESA10000 Storage Subsystems

4.2 EMU Error and Fault Status Reporting

The EMU processes subsystem status reports, and when there is an error condition, notifies the user of the problem using the EMU audible alarm and the status LEDs (system, temperature, power, blower) located on the EMU front panel (see Figure 4–2).

Whenever the audible alarm sounds, the user should check the EMU status LEDs to determine the problem.

CAUTION

Should the audible alarm sound, but the status LEDs not indicate an error condition, it possible that the er ror c ondit ion no l onger ex i st s . Howev er , you should always check t he control ler err or log to verify the error condition no longer exists.

The EMU reports the system status, to include error conditions, to the controller which records this information in the error log and displays it on the controller console.

Figure 4–2 EMU Front Panel Layout

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Chapter 4. Error Analysis and Fault Isolation

4.3 EMU Subsystem Status LEDs

Table 4–2 Shows the possible EMU status LED displays. LEDs that blink or flash at a one second or greater interval are considered ON.

Table 4–2 EMU Subsystem Status LEDs

Symbol Condition

ON or blinking slowly (interval of 1 second or more).

OFF.

Flashing (blinking)

The EMU LEDs (see Table 4–3) display the status of the enclosure (System Fault), the temperature status (overtemperature), error conditions (enclosure fault), and the status of the individual blowers and banks of blowers. When the enclosure is functioning properly, only the Power LED is ON. Table 4–3 describes:

The EMU LED display

•

The enclosure status associated with each display

•

The probable cause of the error condition

•

The actions recommended to correct the problem

•

Not all pos sibl e combinat ions of LED displ ays are shown. For example, there ei ght dif ferent displ ays for the failure of an individual blower. Therefore, only a representative display of each error condition type is shown.

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RA7000 and ESA10000 Storage Subsystems

Table 4–3 EMU LED Displays

Display Subsystem Status

The subsystem is fully operational. Comment The dc power supplies and the blowers are operating properly. The ambient and exhaust air temperatures are within the user specified limits. Over-temperature condition. Overheating can cause system failure. Probable Cause The ambient temperature in one or more enclosure is above the user-specified limit. Temperature set point may be set too low for environment. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Determine and correct the cause of this condition as quickly as possible to prevent the over-condition from causing a subsystem reset or failure. Change temperature set point. Non-operational Probable Cause One of the following error conditions exists: Either + 5 V dc or 12 V dc out of range. TERMPOWER less than + 4.5 V dc on one or more I/O modules. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Observe the power supply status LEDs to determine the defective power supply and replace it. Examine I/O modules to find the one with either the external or internal TERMPOWER LED ON and replace it.

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Table 4–3 EMU LED Displays (continued)

Display Subsystem Status

Blower fault. Operational blowers are running at high speed. Corrective Action Replace defective blowers. Comment (Refer to Figure 1–18) In this example, blowers 1 and 7 are not operating and must be replaced. Blower fault. Operational blowers are running at high speed. Probable Cause One of the following error conditions exist: A blower is removed. All blowers in one bank are not operating. Multiple blowers are installed incorrectly. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Replace the missing blower. Remove and install blowers correctly within 8 minutes. Replace defective blowers. Comment (Refer to Figure 1–18) In this example, the following condition exists in Bank 1: A blower is removed. Or Two or more blowers are not operating Failure to replace the missing blower within 8 minutes can result in an automatic controlled power shut down. Configuration error. Probable Cause One or more of the following conditions exists: Configuration error Slave EMU cannot communicate with master EMU External SHELF_OK signal indicates error Corrective Action See “EMU System Fault Code Displays” and complete corrective actions for the specific error code.

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4.3.1 EMU System Fault Code Displays

The system fault, temperature, power, and blower LEDs cannot display all the possible system faults. Therefore, a Flashing system fault LED indicates that the blower LEDs are displaying a two-digit, hexadecimal fault code. The upper LEDs (8 – 5) display the first digit; the lower LEDs (4 – 1) display the digit.

The EMU can display configuration fault codes on the blower LEDs (see Table 4–4) only when the system fault LED is flashing. To view fault codes on the blower LEDs you must momentarily depress the Alarm Control switch.

Once you momentarily press the Alarm Control switch the EMU initiates the following actions:

1. Displays the first reported hexadecimal fault code on the blower LEDs three

times in succession.

The LEDs display the first reported fault code the first time for one

•

second and then go off. The LEDs display the first reported fault code the second time for one

•

second and then go off. The LEDs display the first reported fault code the third time for one

•

second and then go off.

2. The LEDs now display the next reported fault code three times.

3. Display of all fault codes occur in sequence. Then the cycle starts over.

4. Releasing the Alarm Control switch stops the fault code display.

When multiple corrective actions are listed, complete the first procedure and see if the problem is corrected. If the problem still exists, complete the second procedure.

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Chapter 4. Error Analysis and Fault Isolation

Table 4–4 EMU Fault Code LED Displays

Display Error

Error Code 01 One of the following error conditions exists: Boot ROM signature fail. Boot ROM checksum failure. Corrective Action Replace EMU. Error Code 02 Both microcode images are bad. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Load microcode image to EMU from maintenance terminal. Replace EMU.

Error Code 03 Either a PVA SCSI ID switch setting is invalid (4, 5, 6, or

7) or there no master enclosure (SCSI ID 0). Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Ensure PVA SCSI ID settings are set as follows: – Master Enclosure = 0 – First Expansion Enclosure = 2 – Second Expansion Enclosure = 3 Replace each PVA in sequence until the fault condition clears.

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RA7000 and ESA10000 Storage Subsystems

Table 4–4 EMU Fault Code LED Displays (continued)

Display Error

Error Code 04 Master EMU cannot communicate with expansion EMU. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Ensure EMU cables are properly connected. Remove all EMU cables and install one at a time. Replace defective cable. Replace EMU. Error Code 05 Master EMU cannot communicate with controller. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Replace EMU. Replace controller. Error Code 06 One or more temperature sensors indicating an “invalid” temperature – one that is greater than 49ºC (120ºF). Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Replace EMU. Replace temperature sensor (field-service task). Error Code 07 Invalid configuration. Corrective Action Controller-specific action.

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Table 4–4 EMU Fault Code LED Displays (continued)

Display Error

Error Code 08 Two PVA SCSI ID switch settings are the same. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Ensure PVA SCSI ID settings are set as follows: – Master Enclosure = 0 – First Expansion Enclosure = 2 – Second Expansion Enclosure = 3 Replace each PVA in sequence until the fault condition clears. Error Code 09 EMU installed in PVS slot. Corrective Action Install EMU in left slot.

Error Code 0A No PVA installed. Corrective Action Install PVA.

Error Code 0B Controller fault. Corrective Action Requires a controller-specific action.

Error Code 0C One or more defective power supplies. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Observe all power supply status LEDs. Replace any power supply with the lower LED OFF.

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RA7000 and ESA10000 Storage Subsystems

Table 4–4 EMU Fault Code LED Displays (continued)

Display Error

Error Code 0D Controller installed in expansion enclosure. Master enclosure SCSI ID address incorrect. Corrective Action Complete first corrective action. If it does not correct the problem, complete the second. Install controller in master enclosure. Change PVA SCSI ID to 0. Error Code 0E EMU memory test failed. Correction Action Replace EMU.

Error Code 0F Fewer than four operational power supplies. Comment The EMU initiates a controlled power shut down when

this condition occurs. Controlled Power Shut Down Display

Corrective Action

See Chapter ? “Power Distribution” for detailed corrective

actions for this problem.

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Error Code 10

EMU diagnostic program loaded.

Comment

The audible alarm is ON continuously and you cannot

clear it by pressing the alarm control switch.

Corrective Action

Complete first corrective action. If it does not correct the

problem, complete the second.

Load new microcode.

Replace EMU with one with the correct microcode.

Chapter 4. Error Analysis and Fault Isolation

4.3.2 Controlled Power Shut Down

Implementation of the controlled power shut down ensures that UltraSCSI subsystem components are properly protected when significant error conditions exists. The shut down can be initiated either automatically by the EMU or by the user.

A controlled power shut down accomplishes the following:

Disconnects all the power supply output voltages from the enclosure power

•

buses. This includes the internal TERMPOWER on the I/O modules. The power supplies remain operational as long as the ac input voltage is present.

NOTE

The availability of the external TERMPOWER is determined by the state of the device providing TERMPOWER.

Supplies a “trickle” voltage to the EMU to maintain the controlled power shut

•

down state.

Enables the Alarm Control switch power-on function

•

During a controlled power shut down, the Alarm Control switch functions as an enclosure power switch. When a controlled power shut down is in effect, you must press the Alarm Control switch to restore dc power to the enclosure.

4.3.3 Automatic Shut Down

The EMU in any enclosure can initiate a controlled power shut down to protect the components from an over-temperature condition. The conditions that cause the EMU to initiate this action include one or more of the following:

Any two temperature sensors register a temperature of 50ºC (122ºF)

•

Removing one or more blowers for more than 8 minutes

•

No blowers have been operational for more than 8 minutes

•

Fewer than four operational power supplies

•

The automatic shut down affects only the enclosure in which the EMU is located. However, in an expansion configuration other actions may be implemented by the master EMU or the controller.

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RA7000 and ESA10000 Storage Subsystems

After correcting the problem that required the controlled power shut down, you can restore power by:

1. Momentarily pressing the Alarm Control switch on each expansion unit EMU.

2. Momentarily pressing the Alarm Control switch on the master EMU.

4.3.4 User-Initiated Master Enclosure Shut Down

When you initiate a controlled power shut down on the master enclosure PVA by pressing and holding the dc power switch for at least 5 seconds, the sequence of events is as follows:

NOTE

If the master EM U is not communi cating with t he controller or the controller does not support a controlled power shut down, the master EMU commands all enclosures to perform an immediate power shut down.

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

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

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

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

After correcting the problem that required the controlled power shut down you can restore power by:

1. Momentarily pressing the Alarm Control switch on each expansion unit EMU.

2. Momentarily pressing the Alarm Control switch on the master EMU.

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StorageWorks RA7000, ESA10000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual