StorageWorks HSD05 User manual

StorageWorks™Solutions

HSD05ArrayController

User’sGuide

Order Number: EK–HSD05–UG. B01

This manual is part of the StorageWorks family documentation set.

It describes the HSD05 Array Controller and contains installation

and conﬁguration information. For day-to-day operation, this manual

includes a description of the user interface commands and procedures to

perform routine tasks.

Revision/Update Information: February 21, 1994

Digital Equipment Corporation

Maynard, Massachusetts

January, 1994

While Digital believes the information included in this publication is correct as of the date of

publication, it is subject to change without notice.

Digital Equipment Corporation makes no representations that the interconnection of its products

in the manner described in this document will not infringe existing or future patent rights, nor

do the descriptions contained in this document imply the granting of licenses to make, use, or sell

equipment or software in accordance with the description.

Any changes or modiﬁcations made to this equipment may void the user’s authority to operate the

equipment.

NOTE: This equipment generates, uses, and may emit radio frequency energy. The equipment has

been type tested and found to comply with the limits for a Class A digital device pursuant to Part

15 of the FCC rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation.

Operation of this equipment in a residential area may cause interference in which case the user,

at his own expense, will be required to take whatever measures may be required to correct the

interference.

WARNING

This is a Class A product. In a domestic environment, this product may cause radio interference in

which case the user may be required to take adequate measures.

Printed in the United States of America.

AXP, CI, DECchip, DEC 7000, DEC 10000, Digital, DSA, DSDF, HSD05, MSCP, OpenVMS, RF,

RA82, RF72, StorageWorks, TF, TMSCP, VAX, VAXcluster, VAX 4000, VAX 6000, and the DIGITAL

logo are trademarks of Digital Equipment Corporation.

Exabyte is a registered trademark of Exabyte Corporation.

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

The postpaid Reader’s Comments forms at the end of this document request your critical evaluation

to help prepare future documentation.

This document was prepared using VAX DOCUMENT Version 2.1.

Contents

Preface ............................................................ vii

1 Introduction

1.1 HSD05 Array Controller Description ............................. 1–1

1.1.1 HSD05 Array Controller Features and Capabilities ............... 1–1

1.1.2 Overview of HSD05 Operating Requirements/Limitations . . . ....... 1–3

1.1.3 Connections to DSSI and SCSI Buses . . ....................... 1–4

1.1.4 Compatibility with StorageWorks Components . . . ............... 1–4

1.2 SBB Shelf Overview . . ........................................ 1–4

1.2.1 SBB Shelf Capacity ....................................... 1–4

1.2.2 SBB Shelf SCSI Bus Connections ............................ 1–4

1.2.3 SBB Shelf SCSI Bus Addresses .............................. 1–5

1.2.4 SBB Shelf Power Supply . . . ................................ 1–5

1.3 HSD05 Array Controller Speciﬁcations ........................... 1–5

2 Preparing to Use the HSD05 Array Controller

2.1 Site Preparation ............................................. 2–1

2.2 Unpacking the HSD05 Array Controller . . . ....................... 2–2

2.3 HSD05 Array Controller Switches and Jumpers .................... 2–2

2.4 Setting the Device Conﬁguration on the HSD05 Array Controller ....... 2–4

2.4.1 DSSI ID ................................................ 2–4

2.4.2 SCSI ID ................................................ 2–6

2.4.3 Selecting Bus Termination . . ................................ 2–7

2.5 Installing the HSD05 Array Controller in an SBB Shelf .............. 2–8

2.6 Applying Power ............................................. 2–9

2.7 Setting Parameters for the HSD05 Array Controller . . ............... 2–10

2.7.1 Starting PARAMS from the Console Prompt on OpenVMS VAX

Systems ................................................ 2–10

2.7.2 Starting PARAMS from the Console Prompt on OpenVMS AXP

Systems ................................................ 2–11

2.7.3 PARAMS Conﬁguration Utility .............................. 2–12

2.7.4 Display Device Parameters Using the PARAMS Conﬁg Utility ...... 2–16

2.7.5 Set Device Parameters Using the PARAMS Conﬁguration Utility .... 2–17

3 Operating the HSD05 Array Controller

3.1 HSD05 Device Utilities ....................................... 3–1

3.1.1 Starting UTILIT from the Console Prompt on OpenVMS VAX

Systems ................................................ 3–2

3.1.2 Starting UTILIT from the Console Prompt on OpenVMS AXP

Systems ................................................ 3–3

iii

3.1.3 Starting the UTILIT Conﬁguration Utility from the OpenVMS

Prompt ................................................. 3–4

3.1.4 UTILIT Device Utility Commands ............................ 3–4

3.1.4.1 The HELP Command ................................... 3–4

3.1.4.2 The SHOW Command .................................. 3–5

3.1.4.3 The SELECT Command ................................. 3–6

3.1.4.4 The DESELECT Command . . ............................ 3–6

3.1.4.5 The ABORT Command.................................. 3–7

3.1.4.6 FORMAT ............................................ 3–7

3.1.4.7 The QUALIFY Command ................................ 3–8

3.1.4.8 The DISKTEST Command . . . ............................ 3–10

3.1.4.9 The TAPETEST Command. . . ............................ 3–11

3.2 Device Utility Procedures. . .................................... 3–12

3.2.1 Formatting and Qualifying a SCSI Drive ....................... 3–12

3.2.2 Exercising a Disk Device ................................... 3–13

3.2.3 Exercising a TAPE Device .................................. 3–15

3.3 Troubleshooting . ............................................ 3–16

3.4 HSD05 Error Logs ........................................... 3–18

3.4.1 Type 1 Error Logs for a Disk Drive ........................... 3–19

3.4.2 Type 1 Error Logs for a Tape Drive ........................... 3–20

3.4.3 Type 2 Error Logs for a Disk Drive ........................... 3–21

3.4.4 Type 2 Error Logs for a Tape Drive ........................... 3–22

3.5 Removing and Replacing the HSD05 Array Controller ............... 3–23

A HSD05 Conﬁguration Information

A.1 DSSI Cables . . . ............................................ A–1

A.2 HSD05 Cabling Diagrams . .................................... A–3

Index

Examples

3–1 HELP Commands and Syntax . . . ............................ 3–5

3–2 SHOW Command Display .................................. 3–5

3–3 SELECT Operation Display ................................. 3–6

3–4 DESELECT Command . .................................... 3–7

3–5 ABORT Command ........................................ 3–7

3–6 FORMAT Operation Display ................................ 3–8

3–7 Write-Read Qualiﬁcation Run Using the QUALIFY Command . . . . . . 3–9

3–8 Write-Read Qualiﬁcation Run Using the DISKTEST Command . . . . . 3–10

3–9 TAPETEST Run Display ................................... 3–11

3–10 Format/Qualify Task Procedure . . ............................ 3–13

3–11 DISKTEST Task Procedure ................................. 3–15

3–12 TAPETEST Task Procedure ................................. 3–16

iv

Figures

1–1 HSD05 Array Controller . . . ................................ 1–2

1–2 HSD05 Array Controller Typical Installation .................... 1–3

1–3 Typical SBB Shelf ........................................ 1–5

2–1 HSD05 Array Controller Module Board Layout . . . ............... 2–3

2–2 Device Conﬁguration Switchpack ............................. 2–5

2–3 DSSI Trilink Connector .................................... 2–8

3–1 HSD05 Array Controller Module Board Layout . . . ............... 3–17

3–2 Device Conﬁguration Switchpack ............................. 3–24

A–1 HSD05 DSSI Trilink Connector ............................. A–3

A–2 Interconnected SBB Shelves ................................ A–4

A–3 DSSI Bus Terminated At The HSD05 Array Controller ............ A–4

A–4 HSD05 At Mid-Point of DSSI Bus ............................ A–5

Tables

1StorageWorks Related Documentation . . ....................... vii

1–1 HSD05 Array Controller and SBB Shelf Dimensions .............. 1–5

1–2 Environmental Speciﬁcations ............................... 1–6

2–1 Thermal Stabilization Speciﬁcations . . . ....................... 2–2

2–2 HSD05 Array Controller Module Board Jumpers . . ............... 2–4

2–3 Device Conﬁguration Switchpack (SW2) Sections . ............... 2–4

2–4 DSSI ID Switch Settings . . . ................................ 2–6

2–5 SCSI ID Switch Settings . . . ................................ 2–7

2–6 PARAMS Conﬁguration Utility HSD05 Array Controller

Parameters ............................................. 2–12

3–1 HSD05 LED Indicator Codes ................................ 3–18

3–2 Port Error Codes . ........................................ 3–18

3–3 SCSI Bus Phases . ........................................ 3–19

3–4 Type 1 Disk Drive Error Log Bytes ........................... 3–20

3–5 Type 2 Disk Drive Error Log Bytes ........................... 3–21

A–1 Host System to StorageWorks DSSI Cables .................... A–1

A–2 HSD05 Interconnecting DSSI Cables . . ....................... A–2

v

Preface

This manual describes the procedures for conﬁguring, installing, operating, and

replacing the StorageWorks™ HSD05™ array controller.

Intended Audience

This manual is intended for use by customers and Digital™ employees responsible

for systems using the HSD05 array controller.

Structure This manual is organized as follows:

Chapter 1 Describes the HSD05 array controller and related StorageWorks

components.

Chapter 2 Contains procedures to install and conﬁgure the HSD05 array

controller.

Chapter 3 Contains procedures for using the HSD05 onboard utilities, along with

representative tasks that can be performed by the onboard utilities.

This chapter also contains information on using the OpenVMS™ error

log to troubleshoot the HSD05 array controller, and a remove and

replace procedure.

Appendix A Contains conﬁguration information for the HSD05 and associated SBB

shelves, including a listing of cables. This information supplements the

SBB shelf information contained in the StorageWorks documents listed

in Related Documents.

Related Documents

Table 1 lists the StorageWorks-related user documents. These documents are the

primary reference between the HSD05 array controller and the documentation

for related components in the StorageWorks building block (SBB) family. The

documents listed in Table 1 are provided with every StorageWorks system.

Table 1 StorageWorks Related Documentation

Document Title Order Number

StorageWorks Solutions Conﬁguration Guide EK–BA350–CG

StorageWorks Family User’s Guide1EK–BA350–UG

StorageWorks Family StorageWorks Building Block User’s Guide EK–SBB35–UG

1Includes BA350–SA SBB shelf user’s guide

vii

Documentation Conventions

The following conventions are used in this manual:

boldface type Boldface type indicates the ﬁrst instance of terms being deﬁned in text.

In code examples, user input is shown in boldface type.

italic type Italic type indicates emphasis and complete manual titles.

OpenVMS VAX A shortened term indicating the OpenVMS operating system for VAX™

hardware.

viii

1

Introduction

The HSD05 array controller is the entry-level product of the StorageWorks HSD

family of bus controllers. Installed in a 3½-inch StorageWorks building block

(SBB), the HSD05 array controller is used to connect a Digital host DIGITAL

storage subsystem interconnect (DSSI) bus to up to seven Small Computer

System Interconnect (SCSI) drives.

This chapter presents a basic description of the HSD05 array controller’s

features, performance, and operating environment. The HSD05 array controller

is shown in Figure 1–1; Figure 1–2 presents a typical HSD05 installation,

showing the relationship among basic system components.

1.1 HSD05 Array Controller Description

Connecting to a single port on a host DSSI bus, the HSD05 array controller

provides connectivity for up to seven SCSI or SCSI–2 disk, tape, and solid-state

disk devices. Enclosed in a 3½-inch SBB, it is mounted in a BA350-type shelf

containing up to six drives. Two shelves may be connected together to support

the maximum seven SCSI devices.

A DSSI bus connects to the HSD05 through a connector on the front panel; SCSI

bus connection is made through the shelf backplane connector. The HSD05 is a

TMSCP™/MSCP™-compliant device that performs the translations required to

support devices conforming to SCSI or SCSI–2 protocols.

The HSD05 array controller is shipped with a DSSI trilink connector and a

DSSI terminator that ﬁts on the trilink connector. The trilink connector allows

the HSD05 array controller to be connected as either an endpoint or a middle

(daisy-chain) node on the DSSI bus. Conﬁgured as a bus endpoint, the DSSI

terminator is used to properly terminate bus signals.

One or more HSD05 array controllers may be connected on the DSSI bus

containing RF™xx/TF™xx drives, host nodes, or other DSSI-compliant nodes (up

to eight nodes maximum).

1.1.1 HSD05 Array Controller Features and Capabilities

The HSD05 array controller provides the following features:

• Warm-swapping of attached drives (with a quiesced SCSI bus)

• Support for both OpenVMS VAX and OpenVMS AXP™ systems

• Multihost support for up to three host DSSI nodes in a cluster environment

• User-selectable SCSI and DSSI node IDs

Introduction 1–1

Figure 1–1 HSD05 Array Controller

CXO-4052A-PH

• DUP support for modifying operating parameters, such as DSSI nodename

and device allocation classes

• Host-based striping

• Host-based volume shadowing (with some restrictions)

The HSD05 array controller also exhibits the following performance metrics:

• 500+ requests/second (aggregate)

• 1.7 MB/second sustained throughput (aggregate)

Each device served by the HSD05 array controller is independently addressable.

Attached disk, tape, and solid-state drives appear to the host as standard

DIGITAL storage architecture (DSA™) devices. Disk allocation class is user-

deﬁnable, with all attached disks sharing the class value. Tape allocation class is

independently user-deﬁnable in the same manner.

The HSD05 array controller identiﬁes itself on the CI™ bus as a device of type

RF72; its software revision is RFX B1. This identiﬁcation is in device name only,

and does not reﬂect actual device geometries.

1–2 Introduction

Figure 1–2 HSD05 Array Controller Typical Installation

HOST

SYSTEM DSSI BUS SCSI BUS

HSD05

ARRAY

CONTROLLER

SCSI

DEVICE

UP TO 7 SCSI DEVICES

CXO-4005B-MC

SCSI

DEVICE

SCSI

DEVICE

1.1.2 Overview of HSD05 Operating Requirements/Limitations

The HSD05 array controller is designed for installation in shelf slot 0. This

preserves the integrity of the backplane SCSI bus, as the HSD05 array controller

normally serves as a terminating end of the SCSI bus. Its factory-default SCSI

node address, or SCSI ID, is 7.

While attached drives may be removed when the SCSI bus is quiesced (warm-

swapped), they should not be removed with the SCSI bus active (hot-swapped)

to avoid the possibility of data corruption errors. The HSD05 array controller

itself should only be removed when the power is off to all nodes on the DSSI bus

that is attached to the HSD05 array controller, and shelf power is disconnected

(cold-swap).

Depending upon the complexity of the conﬁguration, total DSSI bus length should

be limited to between 30 to 60 feet with an HSD05 array controller attached to

guarantee DSSI bus integrity.

Though it comprises the low end of the HSD family of array controllers, the

HSD05 array controller does not support DIGITAL Standard Disk Format

(DSDF™) protocol. Drives written by the HSD05 array controller can only be

read by other StorageWorks array controllers using Transportable mode format;

refer to the documentation supplied by other units on the use of this mode.

The HSD05 array controller supports host-based volume shadowing, but does not

support controller-based shadowing assists. No HSD05 array controller-based

Redundant Array of Independent Disks (RAID) functionality is supported.

The HSD05 array controller identiﬁes attached disk devices as RF72 or RA82

disk drives, and attached tape devices as TU81 tape drives. This does not affect

the actual accessible device storage space. However, the following restrictions

apply to creating shadow sets:

Introduction 1–3

• Due to device geometry differences, a disk drive served by the HSD05 array

controller cannot be part of a shadow set with true RF72 (or any other DSSI

device) disk drives.

• Shadow sets using HSD05 array controller-served disk drives must be of the

same SCSI device type, for example RZ26, RZ26L, or RZ28 disk drives.

Supported tape drives such as the TLZ06 and TLZ6L offer multiple tape density

settings, supported by the HSD05. Tape drives not offering his capability, such as

the TZ86, operate in single-density/noncompacted mode only.

The HSD05 array controller does not support dual pathing or failover operation

for attached devices.

The HSD05 array controller does not sequence disk drives when spinning up. To

minimize surge current to the disk drives, spin up one or two drives at a time.

1.1.3 Connections to DSSI and SCSI Buses

The DSSI bus 68-pin connector (J1) is located on the front panel of the SBB.

Connections to the backplane SCSI bus in the SBB shelf are made through a

connector (J2) at the rear of the SBB. The module board contains the switches to

select the DSSI ID, the SCSI ID, and bus termination. Indicators on the module

board are visible through the louvers in the front panel of the unit.

1.1.4 Compatibility with StorageWorks Components

The HSD05 array controller is fully compatible with the power and environmental

requirements of StorageWorks family devices. In a typical application, the HSD05

array controller can be installed in an SBB shelf without modiﬁcation to the

shelf, the shelf backplane, or other SBB devices. See Section 1.3 for listings of the

physical and environmental speciﬁcations for the HSD05 array controller and the

SBB shelf unit.

1.2 SBB Shelf Overview

This section provides a brief overview of the SBB shelf and its components.

Refer to the StorageWorks documentation listed in Table 1 for further information

on SBB shelves and the StorageWorks family of products.

1.2.1 SBB Shelf Capacity

A typical SBB shelf can contain up to eight 3½-inch SBBs, as shown in

Figure 1–3. The SBB slots are numbered 0 through 7 from right to left, starting

with the slot adjacent to the SCSI connectors. Slot 7 is reserved for the power

supply SBB. Slot 6 can be used for either a storage SBB, a redundant power

supply, or a battery backup unit (BBU).

Cooling for the SBB shelf is supplied by two redundant blowers mounted on the

rear of the shelf.

1.2.2 SBB Shelf SCSI Bus Connections

There are two 50-pin, high-density, female SCSI connectors on the backplane

adjacent to slot 0. These connectors are accessible through the front of the SBB

shelf. These connectors are not normally used in an HSD05 array controller

installation, except when two SBB shelves are used (see Appendix A).

1–4 Introduction

Figure 1–3 Typical SBB Shelf

CXO-3617B-PH

(7)

POWER 65432 01 SCSI

CONNECTORS

1.2.3 SBB Shelf SCSI Bus Addresses

There are seven SCSI bus device addresses (SCSI IDs) that are numbered 0

through 6. These addresses can be assigned to either 3½-inch or 5¼-inch SBBs.

The slot numbers and the SCSI device addresses are the same for slots 0 through

6. Slot 7 is reserved for the shelf power supply SBB and does not have a device

address.

1.2.4 SBB Shelf Power Supply

The StorageWorks cabinet ac or dc cable distribution unit (CDU) determines the

type of power supply to be installed in the shelf.

1.3 HSD05 Array Controller Speciﬁcations

This section contains listings of the physical and environmental speciﬁcations for

the HSD05 array controller and the SBB shelf unit.

Table 1–1 lists the dimensions of the HSD05 array controller and the SBB shelf.

Table 1–1 HSD05 Array Controller and SBB Shelf Dimensions

Description Height

mm (in) Width

mm (in) Depth

mm (in)

HSD05 SBB 121 (4.8) 51 (2.0) 216 (8.5)

BA350 SBB shelf 150 (5.9) 445 (17.5) 350 (13.8)

The HSD05 array controller is fully compatible with the environmental

speciﬁcations for the StorageWorks family of products. These speciﬁcations

are given in Table 1–2.

Introduction 1–5

Table 1–2 Environmental Speciﬁcations

Condition Speciﬁcation

Optimum Operating Environment

Temperature

Rate of change

Step change

+18° to +24°C (+65° to +75°F)

3°C (5.4°F)

Relative humidity 40% to 60% (noncondensing) with a step change of 10% or less

(noncondensing)

Altitude From sea level to 2400 meters (8000 feet)

Air quality Maximum particle count .5 micron or larger, not to exceed 500,000

particles per cubic feet of air

Inlet air volume .026 cubic meters per second (50 cubic feet per minute)

Maximum Operating Environment (Range)

Temperature +10° to +40°C (+50° to +104°F)

Derate 1.8°C for each 1000 merters (1.0°F for each 1000 feet) of

altitude

Maximum temperature gradient 11°C/hr (20°F/hr) ±2°C/hr (4°F/hr)

Relative humidity 10% to 90% (noncondensing)

Maximum wet bulb temperature: 28°C (82°F)

Minimum dew point: 2°C (36°F)

Maximum Nonoperating or Storage Environment (Range)

Temperature

Nonoperating

Storage +18° to +29°C (+65° to +85°F)

–40° to +66°C (–40° to +151°F)

Relative humidity

Nonoperating

Storage 10% to 90% (noncondensing)

8% to 95% in original shipping container (noncondensing);

otherwise, 50% (noncondensing)

Altitude From –300 meters (–1000 feet) to +3600 meters (+12,000 feet)

MSL

1–6 Introduction

2

Preparing to Use the HSD05 Array Controller

This chapter contains information and procedures for unpacking, conﬁguring, and

installing the HSD05 array controller.

2.1 Site Preparation

The HSD05 array controller is fully compatible with all physical, electrical,

and environmental speciﬁcations for SBB shelves and components. Refer to

Section 1.3 for a listing of applicable factors to be considered when installing or

storing the HSD05 array controller.

Environmental Stabilization

To ensure proper operation of Digital storage devices, the SBB shelf temperature

must be within 18–29°C (65–85°F). Table 2–1 speciﬁes the time required to

thermally stabilize the HSD05 array controller and other SBBs based on the

ambient shipping temperature.

CAUTION

Be sure to thermally stabilize the HSD05 array controller in the operating

environment prior to installation or operation. Otherwise, the associated

electronics may be damaged when power is applied to the unit.

If condensation is visible on the outside of the HSD05 array controller:

Stabilize the HSD05 array controller in the operating environment for 6

hours or until the condensation is no longer visible, whichever is longer. Do

not insert the HSD05 array controller into the shelf until it is fully stabilized.

If condensation is not visible on the outside of the HSD05 array

controller:

Thermally stabilize the HSD05 array controller for the amount of time

speciﬁed in Table 2–1.

Preparing to Use the HSD05 Array Controller 2–1

Table 2–1 Thermal Stabilization Speciﬁcations

Ambient

Temperature

Range °C

Ambient

Temperature

Range °F

Minimum

Stabilization

Time

60 to 66 140 to 151 3 hours

50 to 59 122 to 139 2 hours

40 to 49 104 to 121 1 hour

30 to 39 86 to 103 30 minutes

18 to 29 65 to 85 None

10 to 17 50 to 64 30 minutes

0 to 9 32 to 49 1 hour

–10 to –1 14 to 31 2 hours

–20 to –11 –4 to 13 3 hours

–30 to –21 –22 to –5 4 hours

–40 to –31 –40 to –21 5 hours

2.2 Unpacking the HSD05 Array Controller

Use the following procedure to remove the HSD05 array controller from its

shipping carton :

1. Before unpacking the HSD05 array controller, inspect the shipping carton

for signs of external damage. Report any damage to the local carrier, and to

Digital Multivendor Services or your local Digital sales ofﬁce.

2. Be sure to thermally stabilize the HSD05 array controller as given in

Environmental Stabilization and Table 2–1.

3. After removing the HSD05 array controller from its shipping container,

inspect the array controller for signs of external damage. Report any damage

to the local carrier, and to Digital Multivendor Services or your local Digital

sales ofﬁce.

4. To prevent damage from electrostatic discharge (ESD), do not touch the

HSD05 DSSI or SCSI connectors.

2.3 HSD05 Array Controller Switches and Jumpers

The HSD05 array controller module board contains switches and jumpers, as

shown in Figure 2–1. All jumpers are installed at the factory and do not need

to be set during normal installation of the HSD05 array controller. The switch

sections on the device conﬁguration switchpack need to be set to conﬁgure the

DSSI ID and the SCSI ID.

2–2 Preparing to Use the HSD05 Array Controller

Figure 2–1 HSD05 Array Controller Module Board Layout

DS1 DS2 DS3 DS4 SW2 W9

W8 W3

CXO-4053A-PH

The functions of the switches and jumpers on the module board are given in the

following tables:

•Table 2–2 lists the jumper settings for the HSD05 array controller. These

settings need not be changed during a normal installation.

•Table 2–3 lists the switch sections in the device conﬁguration switchpack

(SW2). You will need to set these switches according to the procedures given

in Section 2.4.

Preparing to Use the HSD05 Array Controller 2–3

Table 2–2 HSD05 Array Controller Module Board Jumpers

Jumper Deﬁnition

W1 Reserved

W2 Reserved

W3 EPROM size

W4 Wait state

W5 Reserved

W6 Reserved

W7 Reserved

W8 DSSI terminator power supplied by module

W9 SCSI terminator power supplied by module

Table 2–3 Device Conﬁguration Switchpack (SW2) Sections

Section Deﬁnition Default

SW2–1 MSB of DSSI ID Open (DSSI ID = 0)

SW2–2 NSB of DSSI ID Open

SW2–3 LSB of DSSI ID Open

SW2–4 MSB of SCSI ID Closed (SCSI ID = 7)

SW2–5 NSB of SCSI ID Closed

SW2–6 LSB of SCSI ID Closed

SW2–7 Spare Open

SW2–8 Spare Open

SW2–9 Spare Open

SW2–10 Active SCSI termination Closed (terminators installed)

2.4 Setting the Device Conﬁguration on the HSD05 Array Controller

This section contains the procedure to set the switches on the HSD05 array

controller module board prior to installation in the SBB shelf. To access the

switches, look through the slot in the back cover of the HSD05 array controller

and locate the conﬁguration switchpack, as shown in Figure 2–2.

The device conﬁguration switchpack contains 10 switch elements, divided into

DSSI ID and SCSI ID sections as shown in Figure 2–2. Refer to The NAME_

ALGRM Parameter for detailed information on the makeup of the MSCP/TMSCP

unit numbers.

2.4.1 DSSI ID

The DSSI port (J1) on the front panel connects the HSD05 array controller to a

standard DSSI bus device, such as a VAX 4000™ host computer.

2–4 Preparing to Use the HSD05 Array Controller

Figure 2–2 Device Conﬁguration Switchpack

CXO-4020A-MC

DSSI

NODE ID NOT

USED

(OPEN)

(CLOSED)

SCSI

ID SCSI

TERMINATION

Selecting the DSSI ID

Each device on the DSSI bus requires a unique device address in the range of 0

through 7. DSSI ID 7 has the highest priority on the bus and DSSI ID 0 has the

lowest priority. The DSSI ID is factory set to 0; you may need to change this ID

to one that is currently not being used on your system.

Setting the DSSI ID

Table 2–4 lists the sections of SW2 and the corresponding settings for each DSSI

ID. On the switchpack, the closed position is with the switch in the down position,

and the open position is with the switch in the up position.

Preparing to Use the HSD05 Array Controller 2–5

Table 2–4 DSSI ID Switch Settings

DSSI

ID SW2–1 SW2–2 SW2–3

0 Open Open Open

1 Open Open Closed

2 Open Closed Open

3 Open Closed Closed

4 Closed Open Open

5 Closed Open Closed

6 Closed Closed Open

7 Closed Closed Closed

Use the following procedure to set the DSSI ID:

1. At the system console prompt, enter the console command SHOW DEVICE on

OpenVMS VAX systems, or SHOW CONFIG on OpenVMS AXP systems, to

determine the DSSI ID numbers currently active on the DSSI bus.

2. Select an unused DSSI ID number for the HSD05 array controller.

3. Refer to Figure 2–2 and Table 2–3 to locate the DSSI ID switches on the

device conﬁguration switchpack.

4. Using a small blade screwdriver or similar tool, reach through the slot in the

rear panel of the HSD05 array controller, and set the switchpack to the DSSI

ID number selected in Step 2.

2.4.2 SCSI ID

The SCSI port (J2) plugs into the SBB shelf backplane when the HSD05 array

controller is installed in the shelf. This port must have a unique SCSI ID for that

SBB shelf.

Selecting the SCSI ID

The HSD05 array controller is factory set to SCSI ID=7togive it the highest

priority on the SCSI bus. The other devices in the conﬁguration must have SCSI

ID numbers between 0 and 6. For normal operation, you should not need to reset

the SCSI ID.

Setting the SCSI ID

Table 2–5 lists the sections of SW2 and the corresponding sections used to set the

SCSI ID. On the switchpack, the closed position is with the switch in the down

position, and the open position is with the switch in the up position.

2–6 Preparing to Use the HSD05 Array Controller

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StorageWorks HSD05 User manual

StorageWorks HSD05 User manual

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