Digital Equipment Storage Works User Manual

Solutions

Enterprise Storage Array for
I/O Intensive Applications

User’s Guide

Order Number: EK–ESAT4–UG. B01

This manual describes the concepts and procedures neccesary to install, configure, and
use the Enterprise Storage Array on multiple operating systems. It also describes the
major components of the Enterprise Storage Array

.

Digital Equipment Corporation
Maynard Massachusetts

November 1996

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.

________________________ 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.

Any changes or modifications made to this equipment may void the users authority to
operate this equipment.

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 will be required to
correct the interference.

© Digital Equipment Corporation, 1996.
All Rights Reserved.

Printed in USA

Alpha AXP, DEC, HSZ, Digital, StorageWorks, and the DIGITAL logo are trademarks of Digital Equipment
Corporation, Windows NT and Windows 95 are registered trademarks of Microsoft Corporation.

ii

Table of Contents

PREFACE

CHAPTER 1 OVERVIEW OF THE ENTERPRISE STORAGE ARRAY

1.1 Introduction 1-1

1.2 Prerequisites 1-1

1.3 Major Components 1-2

1.3.1 Cabinet 1-2

1.3.2 SBB Shelves 1-3

1.3.3 StorageWorks Building Blocks 1-3

1.3.4 Cable Distribution Unit 1-3

1.3.5 Array Controller Shelves 1-3

1.3.6 Array Controller 1-3

1.3.7 Array Controller Software 1-4

1.3.8 Fan Trays 1-4

1.3.9 StorageWorks Command Console Software 1-4

CHAPTER 2 SBB DEVICE OPERATION

2.1 The SBB Shelf 2-1

2.2 Power Supply Fault Notification 2-5

2.3 Storage Device Fault Notification 2-6

2.4 I/O Module Fault Notification 2-8

2.4.1 Data Bus Connections 2-10

2.4.2 Bus Termination 2-10

2.5 SBB ECB Shelf Fault Notification 2-11

CHAPTER 3 CONTROLLER OPERATIONS

3.1 Controller Mounting 3-1

3.2 The Controller Operating Software (HSOF) 3-2

CHAPTER 4 ESA CONFIGURATION

4.1 Redundant Power Configuration 4-1

4.2 Controller/Drive Configuration 4-3

CHAPTER 5 PREPARING YOUR HOST SYSTEM TO OPERATE WITH ESA

5.1 Applying Power to the ESA Cabinet 5-1

5.2 Logical Unit Number Requirement 5-2

5.3 Connecting SCSI Cables to the Controllers 5-2

5.4 Procedures for Your Operating System 5-3

5.5 Preparing Your Digital UNIX System for ESA 5-4

5.5.1 Installing the Host Adapter 5-4

5.5.2 Basic Configuration Steps 5-4

5.5.3 Installing the StorageWorks RAID Utility for Digital UNIX V3.2x 5-5

5.5.4 Rebuilding the Kernel for Digital UNIX V4.0 5-7

5.6 Preparing Your HP-UX System for ESA 5-8

5.6.1 Installing the Host Adapter 5-8

iii

5.6.2 Installing the Host Device Driver 5-8

5.6.3 Verify Host Adapter and Driver 5-9

5.6.4 HP-UX Series 800 Patch Installation (10.01 only) 5-10

5.6.5 Set the SCSI Bus Address of the Array Controller 5-10

5.6.6 Reboot the System and Verify Successful Installation 5-11

5.7 Preparing Your IBM System for ESA 5-12

5.7.1 Organizing Your System 5-12

5.7.2 Installing the StorageWorks Software onto the Hard Disk 5-14

5.8 Preparing Your Solaris System for ESA 5-20

5.8.1 Installing DECptisp onto the Hard Disk 5-20

5.9 Preparing Your Windows NT/Alpha System for ESA 5-22

5.10 Preparing Your Windows NT/Intel System for ESA 5-23

CHAPTER 6 INSTALLING STORAGEWORKS COMMAND CONSOLE

6.1 Major Features 6-1

6.2 Program Modules 6-2

6.3 RAID Support and Terminology 6-2

6.4 Client System Requirements 6-3

6.5 Installing the SWCC 6-4

6.6 Agent Connection Licensing 6-4

6.6.1 Installing Additional Agents 6-5

6.7 Next Steps 6-5

GLOSSARY

iv

This document presents the concepts and procedures necessary to install, configure, and use
the StorageWorks™ Enterprise Storage Array on multiple operating systems. The major
components of ESA are also described.

Detailed information on all aspects of the ESA and major components can be found in
referenced StorageWorks documentation. Refer to the accompanying StorageWorks
documentation for removal and replacement procedures for all shelves and SBBs.

Intended Audience

This publication is for use by customers and Digital employees responsible for configuring,
installing, and maintaining the Enterprise Storage Array subsystem and its components.

Structure

This manual contains the information and procedures to support the Enterprise Storage Array
configuration and is organized as follows:

•

Chapter 1 presents an overview of the StorageWorks Enterprise Storage Array.

•

Chapter 2 presents an overview of all SBB devices and their operations.

Preface

•

Chapter 3 describes the controller and controller operating software.

•

Chapter 4 describes power and controller configuration, and shows cabling
interconnections.

•

Chapter 5 describes how to prepare your host operating system to successfully operate
with ESA.

•

Chapter 6 describes the StorageWorks Command Console and provides instructions for
installing it.

•

Glossary

v

Documentation Conventions

This guide uses the following conventions:

Convention Description
boldface type

italic type

Related Documentation

The following table lists StorageWorks user documentation shipped with the Enterprise
Storage Array.

Provided Documentation

HSZ50 Array Controller, Operating Software V 5.0, Release Notes
CLI Reference Manual
Configuring Your StorageWorks Subsystem
Servicing Your StorageWorks Subsystem
StorageWorks Solutions

Enterprise Storage Arrays Installation Guide
Enterprise Storage Arrays SBB User’s Guide

Boldface type indicates the first instance of terms
being defined in text, in the glossary, or both.

Italic type indicates emphasis and complete manual
titles. In the glossary, italic type also is used to
indicate cross-references.

Document Title Order Number

EK–HSZ50–RN
EK–HSCLI–RM
EK–HSZ50–CG
EK–HSZ50–SV
EK–SWESA–IG

EK–ESA35-UG

The following table lists StorageWorks user documentation related to, but not shipped with
the Enterprise Storage Array.

Other Documentation

Document Title Order Number

StorageWorks Solutions
24–Shelf Data Center Cabinet (SW800–Series) User’s Guide

StorageWorks Solutions
7 Device, 16–Bit SBB Shelf (BA356–S) Series User’s Guide

StorageWorks Solutions
8–Bit I/O Module (BA35X–MG) User’s Guide

StorageWorks Solutions
Configuration Planning Guide

StorageWorks Solutions
SBB User’s Guide

StorageWorks Solutions
Product Catalog

EK–SW800–UG

EK–BA356–UG

EK–35XMG–UG

EK–BA350–PG

EK-SBB35-UG

EK–BA350–PC

vi

Manufacturer’s Declaration

This section describes environmental, physical, electrical, and safety specifications of the
Enterprise Storage Array Subsystems.

Electromagnetic Compatibility

The Enterprise Storage Arrays Subsystems are CE–Mark Class A certified and you can install
it in a commercial or office environment.

________________________WARNING!__________________________

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

_____________________________________________________________
________________________ Achtung! __________________________

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

_____________________________________________________________
______________________ AVERTISSEMENT! _____________________

Cet appareil est un appareil de Classe A. Dans un environnement résidentiel cet
appareil peut provoquer des brouillages radioélectriques. Dans ce cas, il peut être
demandé à l'utilisateur de prendre les mesures appropriées.

_____________________________________________________________

Safety

The Enterprise Storage Array Subsystems have been tested and are in compliance with the
following safety standards.

________________________ Note ______________________________

The equipment described in this manual is listed by the Underwriters Laboratories
Incorporated (UL) and bears the UL Listing mark. These cabinets are also
certified by the Canadian Standards Association (CSA) and TÜV Product Service
GmbH and bear both the CSA certification and TÜV GS marks. This equipment
also complies with the CE–Mark Class A requirements.

_____________________________________________________________
________________________ Note ______________________________

Das in diesem Manual beschriebene Gerät wurde von TÜV Produckt Service
GmbH auf Sicehreheit geprüft and trägt das GS Yeichen. Bitte beacheten Sie, daß
Eingriffe in das Gerät, Reparaturen oder der Einbau von Erweiterungen nur voin
Digital Personal erfolgent dar, da sonst die GS Yulassung ungültig wird. Die
Zulassung wird auch ungültig, wenn nicht von Digital aualifiyierte
Specihererweiterungen eingebaut wertden. Das Gerät muß so aufgestellt werden,
daß die Steckdose frie zugänglich iste.

_____________________________________________________________

vii

Acoustic Noise Declarations

These cabinets and shelves have been tested in the indicated configurations. In the following
tables 1 B (Bel) = 10 dBA.

Cabinet Acoustics —– Preliminary Declared Values per ISO 9296 and ISO 7779

Sound Pressure Level
Sound Power Level
LWAd, B

Product Idle Operate Idle Operate

SW800-Cabinet with only cabinet fans operating 6.4 6.4 55.7 55.7

LpAmd BA, (Bystander

Positions)

SW800-Cabinet with:

Cabinet fans operating
3 —Controller shelves (BA350–M series)
18 — SBB Shelves (BA356–series)

16-Bit SBB Shelf (BA356-JC series) with:

2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)

16-Bit SBB Shelf (BA356-JC series) with:

2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)
6 — 4.3 GB 7200 RPM Disk Drives (RZ29B–VA)
1 — 8–bit I/O Module (BA35X–MG)

6.8 6.9 58.9 59.9

5.6 5.6 37 37

5.8 5.9 40 41

Schalldruckpegel

Schalleistungspegel

L

, B

WAd

Gerät Leerlauf Betrieb Leerlauf Betrieb

SW800-Cabinet with only cabinet fans operating 6.4 6.4 55.7 55.7
SW800-Cabinet with:

Cabinet fans operating
3 —Controller shelves (BA350–M series)
18 — SBB Shelves (BA356–series) containing

6.8 6.9 58.9 59.9

(Beistehende Position)

L

pAm

, dBA

16-Bit SBB Shelf (BA356-JC series) with:

2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)

16-Bit SBB Shelves (BA356-JC series) with:

2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)
6 — 4.3 GB 7200 RPM Disk Drives (RZ29B–VA)
1 — 8–bit I/O Module (BA35X–MG)

viii

5,6 5,6 37 37

5,8 5,9 40 41

This chapter provides a description of the major components of the StorageWorks Enterprise
Storage Array (ESA) for I/O Intensive Applications. It also gives important prerequisite
information to ensure successful installation of the ESA.

1.1 Introduction

The ESAxxx-C4 are fully integrated storage solutions that are ideal for heavy transaction­oriented applications, including most office automation applications.

The ESA solutions architecture incorporates the latest in StorageWorks RAID controller
technology as well as the StorageWorks Command Console, an easy-to-use centralized
configuration and management tool.

1.2 Prerequisites

1

Overview of the Enterprise

Storage Array

You will need the following software and hardware to complete your ESA installation:

•

A FWD SCSI-2 host adapter to connect to the ESA controller.

•

A personal computer on which to run the StorageWorks Command Console (SWCC)
program (refer to Chapter 6 for minimum PC configuration requirements).

•

A serial connection to the controllers which can be established either from your PC
running communication software, or from a maintenance terminal. Refer to the
Configuring Your StorageWorks Subsystem manual and the HSZ50 CLI Reference
manual for detailed information about serial connection requirements and the required
CLI commands.

Overview of the Enterprise Storage Array 1-1

1.3 Major Components

This section describes the major components of the ESA as shown in Figure 1-1.

SBB
shelf

Figure 1-1 ESA Major Components

Cabinet

1 2 3 4 5 6

1 2 3 4 5 6

Fan

Fan tray
assembly

Controller
shelf

1.3.1 Cabinet

The cabinet has 19 horizontal and 4 vertical shelf positions. Controller shelves are installed
in the middle and upper vertical shelf positions. The lower vertical shelf positions in the front
and rear of the cabinet are each reserved for CDU installation and cable routing. Storage
shelves are installed in the horizontal positions.

1-2 Overview of the Enterprise Storage Array

CDU

CXO-5414A-MC

•

Power−The cabinet and StorageWorks shelves are configured for redundant power. This
configuration consists of two cable distribution units (CDUs) in the cabinet and two
power supplies in each shelf. Each CDU requires a different power source. The primary
shelf power supply connects to CDU A and the redundant shelf power supply connects to
CDU B.

•

Cooling−The cabinet fans and the shelf blowers provide airflow through the shelves and
the cabinet. Each StorageWorks shelf contains two rear-mounted blowers that move heat
from the shelf into the cabinet interior. Six fans in the top of the cabinet draw air up
through the center of the enclosure to blow the interior heat out through the top. Logic
signals allow the status of the shelf blowers to be monitored by the host system.

1.3.2 SBB Shelves

StorageWorks building block (SBB) shelves house the SBBs in the StorageWorks family. The
shelves have two power supply SBBs and a number of standard SBBs. SBB shelves have
mechanical mounting, power, and signal interfaces for the SBBs they house.

1.3.3 StorageWorks Building Blocks

StorageWorks building blocks are modular computer devices or power units from the
StorageWorks family. SBBs may be disk drives, shelf power supplies, or external cache
batteries (ECBs). They are housed in 3.5-inch wide modular carriers that plug into slots in
the SBB shelves. Connectors on the rear of each SBB mate with connectors in the SBB shelf
to provide the electrical interface between the two units.

1.3.4 Cable Distribution Unit

Cable distribution units (CDUs) provide the connections necessary to distribute ac power to
the shelves and fans within the cabinet. CDUs also provide surge and spike protection, along
with a circuit breaker to control the incoming ac power. The two CDUs are configured with
two separate ac power sources to provide redundant primary power within the cabinet. One
CDU is installed in the lower vertical opening in each side of the cabinet.

1.3.5 Array Controller Shelves

Array controller shelves are StorageWorks shelves designed specifically to house SCSI
peripheral controller and cache memory modules. These shelves also have two power supply
SBBs. Controller shelves provide the mechanical mounting, power, and signal interfaces for
the units they house.

1.3.6 Array Controller

The array controller is the intelligent bridge between your host and the devices in your
subsystem. The controller attaches to the host computer system using a fast, wide, differential
(FWD) SCSI−2 bus. Configuring Your StorageWorks Subsystem contains a detailed
description of the controller and its functionality.

Overview of the Enterprise Storage Array 1-3

1.3.7 Array Controller Software

The array controller operating software (HSOF) is the software component of the controller.
It processes SCSI I/O requests from the host and performs the device-level operations required
to satisfy the requests.

1.3.8 Fan Trays

The bottom rear-mounted fan tray occupies one shelf to provide improved cooling for 7200
rpm devices, such as the RZ29B-series disk drive. The three fans exhaust air out of the bottom
rear of the cabinet.

1.3.9 StorageWorks Command Console Software

The SWCC is a graphical user interface (GUI) and network management program for
StorageWorks controllers. It provides a method of monitoring, configuring, and
troubleshooting your Enterprise Storage Array. Refer to Chapter 6 for a complete description
of the SWCC and instructions for installing it.

1-4 Overview of the Enterprise Storage Array

This chapter describes the SBB shelf, the SBBs (disk drives, shelf power supplies and external
cache batteries) and will familiarize you with the operation of the SBB devices, and assist you
in interpreting fault LEDs.

2.1 The SBB Shelf

This section provides a description of the SBB shelf and its components. Refer to the
StorageWorks Solutions 7 Device 16-Bit SBB Shelf BA356–S Series User's Guide for more
detailed information about the SBB shelf.

•

The capacity of the shelf is eight 3.5-inch SBBs, (2 power supply SBBs and 6 device
SBBs) and an I/O module.

•

The SBB slots are numbered 0 through 7 from right to left starting with the slot adjacent
to the I/O module (see Figure 2-1).

•

The I/O module provides a multifunction 8-bit extension of the 16-bit SCSI backplane. It
functions as a platform onto which a wide range of logical and interactive circuitry can be
connected (see Figure 2-2).

2

SBB Device Operation

Figure 2-1 SBB Shelf

4

5

6

7

2

3

0

1

CXO-5411A-MC

SBB Device Operation 2-1

Figure 2-2 SBB Shelf with I/O Module

JA1

JB1

I/O module

Upper
mounting
tab

Lower
mounting
tab

Power
supplies

•

There are six SCSI bus device addresses (that is, target IDs) that are numbered 0 through

5. These addresses are assigned to 3.5-inch SBBs based on the slots into which they are
mounted.

•

The single shelf SCSI device addresses and the slot numbers are the same for slots 0
through 5.

• •

Slot 6 is used for the redundant SBB power unit.

•

Slot 7 is reserved for the shelf power unit and does not have a device address.

•

There are two 50-pin, high-density, female SCSI connectors on the 8-bit I/O module that
are used for I/O and daisy chaining shelves.

•

As shown in Figure 2-3, each shelf has two blowers mounted on the rear of the shelf.
These blowers pull air through the shelf and exhaust it out the rear.

Cable

CXO-5375A-MC

2-2 SBB Device Operation

Figure 2-3 Blower Assembly

Blower 2

Blower 1

CXO-5084A-MC

•

The I/O module monitors the blower operation via the logic signals on the backplane:

− When a high-ambient temperature condition is detected, both blowers

automatically switch to high speed.

− When one blower is defective, the other blower automatically switches to high

speed to compensate.

− The backplane supports the SCSI–2 and SCSI −3 bus.

SBB Device Operation 2-3

2.2 Power Supply Fault Notification

As shown in Figure 2-4, each power supply SBB has two green LEDs that display the power
supply status. Table 2-1 describes the state of these LEDs, the status being reported, and the
recommended corrective action.

Figure 2-4 3.5 --Inch Power Supply SBB

Shelf
status LED
(Green)

Power supply
status LED
(Green)

CXO-4787A-MC

Table 2-1 Power Supply Status LED Displays

When the LED display is

The SBB power supply status is…

…

All the power supply SBBs on the
power bus A or power bus B) are functioning properly.

least one

At
has malfunctioned.

This power supply SBB is functioning properly.

Corrective Action:

Identify and replace the defective power supply SBB.
Either there is no ac power, the CDU has failed, or this power

supply SBB has failed.

Corrective Action:

1. Check that ac power is applied.

2. Check the associated ac power entry controller for proper
operation. Replace if necessary.

3. This power supply has failed and must be replaced.

power supply SBB on the associated power bus

associated

power bus (either

2-4 SBB Device Operation

2.3 Storage Device Fault Notification

As shown in Figure 2-5, each 4.3 GB disk drive SBB has two LEDs that display the device
status. Table 2-2 describes the state of these LEDs, the status being reported, and the
recommended corrective action.

Figure 2-5 4.3 GB Disk Drive SBB

Device
activity
(Green)

Device
fault
(Amber)

Table 2-2 Disk Drive SBB Status LED Displays

When the LED display is… The device SBB status is…

When the green Device Activity LED is ON or FLASHING, and the amber
Device Fault LED is OFF, the SBB is operating normally.
There is no fault.

When the green Device Activity LED is OFF and the amber Device Fault LED is
OFF, the device is inactive and the SBB is operating normally.
There is no fault.

Fault Status.

When the green Device Activity LED is ON and the amber Device Fault LED is
ON, the device is probably not responding to control signals.

Corrective Action:

1. Quiesce the bus.

2. When the drive is spun down, replace the SBB.

Fault Status

When the green Device Activity LED is

FLASHING

Recommended Corrective Action:

1. Quiesce the bus.

2. When the device is spun down (the green LED is

, the SBB is active and is spinning down.

CXO-4652A-MC

ON

and the amber Device Fault LED is

OFF

), replace the SBB.

SBB Device Operation 2-5

2.4 I/O Module Fault Notification

This section describes the 8-bit I/O module (see Figure 2-6) and provides information to assist
you in interpreting fault LEDs.

Figure 2-6 8-Bit I/O Module

CXO-4821A-MC

The I/O module employs active circuitry to provide the following features to the SBB shelf:

•

Eight-bit data bus connections to external units

•

Shelf device address assignment

•

Blower speed control

•

Blower fault indicators

•

Ambient air overtemperature sensing and indication

•

Active, automatic bus termination

2-6 SBB Device Operation

The 8-Bit I/O module is located on the right side of the SBB shelf to the right of slot 0 (see
Figure 2-1).

On the front of the I/O module (see Figure 2-7) are two 50-pin female connectors: bus
connector JA1, the data input connector, and bus connector JB1, the data output connector. In
a split-bus configuration, both JA1 and JB1 are input connectors.

Guides embossed on the top and bottom of the I/O module prevent inserting the I/O module
upside down and keep the module centered in the shelf slot. Two spring-steel mounting tabs
lock into ledges molded into the top and bottom of the shelf secure the I/O module. Squeeze
the mounting tabs together to pull the I/O module out of the shelf.

The upper LED indicates that the left blower motor has failed. The lower LED indicates that
the right blower motor has failed. Fans at the rear of the shelf draw air from the front to cool
the I/O module.

Figure 2-7 I/O Module Features

Backplane
connector

Bus
connector

Upper
mounting
tab

JA1

Left
blower
fault LED

Right
blower
fault LED

Lower
mounting
tab

Bus
connector
JB1

Chassis

J5
address
jumper

Printed
circuit
board

CXO-4536A-MC

SBB Device Operation 2-7

2.4.1 Data Bus Connections

The I/O module provides an external connection for the SBB shelf buses. The backplane
connector on the rear of the I/O module (see Figure 2-7) routes the bus and control signals
from the shelf backplane to the I/O module circuits. These circuits connect the lower eight
bits (0 through 7) of bus A to external bus connector JA1 and the lower eight bits of bus B to
external bus connector JB1.

2.4.2 Bus Termination

The I/O module provides both active and passive bus termination for the two 8-bit shelf buses.
The upper eight bits (8 through 15) of each bus are passively terminated by termination
resistors. These data lines do not pass to the external bus connectors (JA1 and JB1). The
lower eight bits (0 through 7) of SCSI bus B are actively terminated. These data lines are
terminated as long as there is no connection to JB1. When JB1 is connected, the active
terminators are disabled and these data lines pass through JB1.

2-8 SBB Device Operation

2.5 SBB ECB Shelf Fault Notification

This section describes the SBB ECB and provides information to assist you in interpreting the
fault LEDs. The external cache batteries are mounted in an SBB shelf without a backplane.
The shelf is a repository for ECBs only (see Figure 2-8). The ECB is connected to the array
controller’s cache module by an external cable (see Figure 2-9).

Figure 2-8 SBB ECB Shelf

CXO-5408A-MC

SBB Device Operation 2-9

The cache module is mounted under the controller and is identified by the single plug in the
middle of the module (see Figure 2-9).

_________________________ Note ______________________________

The cables connecting the cache module to the ECB are factory installed.
To remove or replace the controller, cache, or ECB, refer to the Servicing
Your StorageWorks Subsystem manual.

_____________________________________________________________

Figure 2-9 Cache to ECB Connection

2-10 SBB Device Operation

1 2 3 4 5 6

1 2 3 4 5 6

CXO-5393A-MC

Each ECB supports two cache modules. To check the ECB status, look at the ECB status
indicator LED (one for each cache module) for the appropriate indication (see Table 2-3 and
Figure 2-10).

Table 2-3 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: = On = Off = Blink fast = Blink slow

Figure 2-10 ECB SBB

Power
connector
(2X)

Status
LED
(2X)

External
cache
battery

Battery
disable
switch
(2X)

CXO-5267A-MC

SBB Device Operation 2-11

This chapter describes how the controllers are mounted in the ESA and how to check that your
program card, containing the controller operating software, is installed.

3.1 Controller Mounting

Controller shelves are mounted horizontally (see Figure 3-1) and vertically (see Figure 3-2).
The primary controller is mounted in the bottom shelf slot (SCSI ID 7) and the redundant
controller is mounted in the top shelf slot (SCSI ID 6).

The trilink connector attaches to the controller host port and the Bus cable from the host
attaches to the trilink connector. The jumper cable and terminator are factory installed for
ESA (see Figure 3-1).

Figure 3-1 Horizontal Mounted Controllers with Cache and Trilink Connectors

3

Controller Operations

Host port

Trilink connector

1 2 3 4 5 6

1 2 3 4 5 6

or

Terminator

Bus cable
to other units

Jumper cable

Bus cable
from host

CXO-5301A-MC

Controller Operations 3-1

Figure 3-2 Vertical Mounted Controllers with Cache

Power
supply
(2X)

1 2 3 4 5 6

1 2 3 4 5 6

Primary
controller
(device
address 7)

Redundant
controller
(device
address 6)

Controller
shelf

CXO-5395A-MC

3.2 The Controller Operating Software (HSOF)

The program card contains the controller operating software (HSOF) and is factory installed.

_________________________Caution_____________________________

The program card must remain inserted at all times during controller
operation with the ESD cover in place. If the program card is removed
during operation, the controller will not function and you must restart the
controller by pressing the reset button.

_____________________________________________________________

Check to be sure your ESA subsystem contains the program card using the following
procedure (see Figure 3-3):

1. Attach an ESD grounding strap to your wrist at one end and the cabinet grounding stud at
the other.

2. Remove the program card ESD cover.

3. Check for the presence of the program card.

4. Snap the ESD cover in place over the program card.

3-2 Controller Operations

Figure 3-3 Location of Program Card ESD Cover

1

1 2 3 4 5 6

ESD
cover

2

1 2 3 4 5 6

Eject

PCMCIA

button

card

CXO-5302A-MC

Should you need to replace your program card (either because of a firmware upgrade or a bad
program card), refer to the replacement procedures in the Servicing Your Storage Subsystem
manual.

Controller Operations 3-3

4

ESA Configuration

This chapter describes the ESA power configuration and controller/drive configuration. The
shelf cabling is illustrated to enable you to physically locate disks in the cabinet according to
their disk unit number..

_______________________ WARNING ___________________________

Electric Shock Hazard! Before working inside the cabinet, remove power
from the cabinet and its components. Failure to do so may result in death or
personnel injury.

_____________________________________________________________

________________________Note _______________________________

You will be instructed when to apply power to your ESA cabinet. Refer to
Chapter 5, in the section specific to your operating system, for these
instructions.

_____________________________________________________________

4.1 Redundant Power Configuration

All ESA systems use the redundant CDU power configuration illustrated in Figure 4-1: CDU
A is connected to the primary power source and CDU B is connected to the redundant power
source. CDU A provides power to the primary power supply SBB in each shelf and CDU B
provides power to the redundant power supply SBB in each shelf. If the primary power source
CDU A, or primary power supply SBB fails, the shelf remains powered by the redundant
power supply. This configuration provides complete power redundancy to the shelf peripheral
devices.

ESA Configuration 4-1

Figure 4-1 Dual CDU Power Configuration

Primary
AC power
source

CDU A

Primary
power
supply

Primary
AC power
(Black cable)

Redundant
power
supply

Redundant
AC power
(Gray cable)

SBB shelf

4-2 ESA Configuration

Redundant
AC power
source

CDU B

CXO-5396A-MC

4.2 Controller/Drive Configuration

The cabinet is cabled at the factory. This section shows all the SBB shelves and the
controllers to which they are connected. The controller port numbers are also shown. Each
SBB shelf contains an 8-bit I/O module, two power supplies, and SBBs, as illustrated in
Figure 4-2. Each controller shelf contains a redundant controller pair. Figure 4-3 shows a
controller shelf with I/O cable connectors. Refer to the appropriate user’s guide for detailed
information about the cabinet, the shelves, and the I/O modules.

Figure 4-2 SBB Shelf with 8-Bit I/O Module

JA1

JB1

I/O module

Upper
mounting
tab

Lower
mounting
tab

Power
supplies

Figure 4-3 Controller Shelf with I/O Connectors

6

5

4

3

2

1

1 2 3 4 5 6

1 2 3 4 5 6

Power
supplies

CXO-5376A-MC

Cable

CXO-5375A-MC

ESA Configuration 4-3

The ESAxxx-C4 cabinet is configured with six SBB shelves per controller pair, as shown in
Figure 4-4 and Figure 4-5. Each controller port (1-6) controls six drives, or one SBB shelf.
The port controlling each shelf is indicated in the figures.

________________________Note _______________________________

In the following figures, the six SCSI cables connecting the controllers to the SBB
shelves are represented by a single line.

_____________________________________________________________

Figure 4-4 Model ESAxxx-C4 (Part # SW8T1)

123456

3

2

1

4

5

6

3

2

1

6
5
4
3

2
1

6
5
4
3

2
1

1

2

3

4

5

6

6

5

4

Front View Rear View

4-4 ESA Configuration

CXO-5517A-MC

Figure 4-5 Model ESAxxx-C4 (Part # SW8T2, 3, and 4 )

123456

3

2

1

4

5

6

3

2

1

6
5
4
3

2
1

6
5
4
3

2
1

1

2

3

4

5

6

6

5

4

Front View Rear View

CXO-5520A-MC

ESA Configuration 4-5

Preparing Your Host System to

Operate with ESA

This chapter describes the steps necessary to bring your ESA and host system online. It also
points you to the procedures for creating a communications logical unit number (LUN) to
install device drivers, and assists your through the process of modifying your host operating
system to meet ESA requirements.

5.1 Applying Power to the ESA Cabinet

Before you perform any procedures in this chapter, you must first apply power to the ESA.
The ESA must be powered on for 6 hours to ensure the write-back cache batteries are fully
charged (required for RAIDsets).

Apply power to the cabinet using the following procedure:

1. Open the front and rear cabinet doors.

2. Switch CDU A and CDU B front panel circuit breakers to the  (ON) position (refer to

Figure 4-1).

5

3. Check to make sure all the controllers have initialized. If the controller initializes
correctly, the green reset LED will begin to flash one time per second.

________________________ Note ______________________________

If an error occurs during initialization, the controller operator control panel
(OCP) displays an error code. Refer to Servicing Your StorageWorks
Subsystem to interpret the LED codes.

_____________________________________________________________

4. Close the front and rear cabinet doors.

Preparing Your Host System to Operate with ESA 5-1

5.2 Logical Unit Number Requirement

You need to create a logical unit on your ESA subsystem to establish a connection between the
subsystem and your host system. This logical unit must remain on each of your subsystems in
order to maintain connections with your host system. Digital recommends creating and
designating a RAID 5/3 one-block partition logical unit as the communications LUN.

Refer to the Getting Started RAID Array 450 Installation Guide specific to your operating
system for detailed information about creating LUNs.

5.3 Connecting SCSI Cables to the Controllers

_________________________Caution_____________________________

Do not connect or disconnect the SCSI bus cable at the host adapter with the
host powered on as it could damage the host adapter or disrupt system
operation.

_____________________________________________________________

The ESA uses HSZ-series controllers with the SCSI interface as the communication path to
the host computer and for the storage device bus. Use the following cabling guidelines to
route the SCSI cables to each controller:

•

Install all SCSI host interface cables through openings at the bottom rear of the cabinet
(same entry point as the power cables).

•

If the controllers are located at the rear of the cabinet, route the cables directly to each
controller trilink connector.

•

If the controllers are located in the front of the cabinet, route the cables to the front
through the openings beside the CDUs.

•

After the cables are routed through the cabinet, attach the host SCSI cables to the trilink
connectors on the front of each controller (see Figure 3-1).

_________________________Note _______________________________

Do not attach the host SCSI cable to the host adapter until you are directed
to do so in the section specific to your operating system.

_____________________________________________________________

5-2 Preparing Your Host System to Operate with ESA

5.4 Procedures for Your Operating System

This section directs you to the section in the manual that provides you with the information
you need to install the required device drivers, and complete the preparation of your system to
operate with the ESA.

• • OpenVMS

If your operating system is OpenVMS, you are not required to install any special device
drivers or other StorageWorks software. Proceed directly to Chapter 6 to install the
StorageWorks Command Console software to complete your ESA installation.

• •

Digital Unix

If your operating system is Digital UNIX, proceed to Section 5.5 to install the
StorageWorks device drivers and complete your ESA installation.

• • HP-UX

If your operating system is HP-UX, proceed to Section 5.6 to install the StorageWorks
device drivers and complete your ESA installation.

• •

IBM on AIX

If your operating system is IBM on AIX, proceed to Section 5.7 to install the
StorageWorks device drivers and complete your ESA installation.

• •

Solaris

If your operating system is Solaris, proceed to Section 5.8 to install the StorageWorks
device drivers and complete your ESA installation.

• •

Windows NT/Alpha

If your operating system is Windows NT for Alpha, proceed to Section 5.9 to install the
StorageWorks device drivers and complete your ESA installation.

• •

Windows NT/Intel

If your operating system is Windows NT for Intel, proceed to Section 5.10 to install the
StorageWorks device drivers and complete your ESA installation.

Preparing Your Host System to Operate with ESA 5-3

5.5 Preparing Your Digital UNIX System for ESA

This section describes how to install device drivers to allow you to access the storage units on
your ESA subsystem from your Digital UNIX host computer. It includes instructions for
loading the StorageWorks RAID utilities and instructions for creating device special files in
Digital UNIX.

_________________________Note _______________________________

Digital UNIX was formerly called DEC OSF/1. The term "Digital UNIX" is
used throughout this Chapter.

You must perform all configuration set up and parameter definitions, and
run all utilities from a maintenance terminal or a terminal emulator
connected to your controller's terminal port. As an alternative, you can use
the HSZterm utility, although it is not covered in this section. See the

StorageWorks HSZ50 Array Controller Utility for Digital UNIX, System
Manager's Guide for HSZterm. The utility and documentation are on

Digital UNIX Consolidated software distribution CD-ROM.

_____________________________________________________________

5.5.1 Installing the Host Adapter

1. Verify that you have a supported host adapter installed in your Digital Alpha-based
system. Table 5-1lists the supported host adapters.

Table 5-1 Supported Host Adapters

Digital UNIX Version Host Adapters

3.2D (min.) Model KZPSA-BB

4.0 Model KZPSA-BB

2. Install the host adapter in an available PCI slot according to the instructions provided
with the host adapter or the Digital Alpha-based System.

3. Attach the SCSI cable to the host adapter.

5.5.2 Basic Configuration Steps

Once you have completed the initial setup and configuration of your ESA subsystem, you will
be able to use RAIDsets and other storage containers much like single disks, including using
them as boot devices.

The configuration steps vary depending upon whether you are running Digital UNIX V3.2D
or V4.0. (Proceed to Section 5.5.4 for the configuration steps for V4.0.)

5-4 Preparing Your Host System to Operate with ESA

5.5.3 Installing the StorageWorks RAID Utility for Digital UNIX
V3.2x

The installation of the StorageWorks RAID Utility for Digital UNIX takes less than one hour
to complete. The installation procedures included in this section load the utility onto your
system and prepare Digital UNIX to run the utility and interact with the ESA subsystem.

You must perform each of the procedures specified in the following sections to complete the
installation and configuration:

•

Run the setld install utility to install the utility (A sample of the installation script appears
in Appendix A of the Getting Started RAID Array 450 for Digital UNIX Installation
Guide).

•

Prepare LUNs for access by the Digital UNIX filesystem.

5.5.3.1 Running the setld Install Utility

Before running the setld install utility, perform the following steps:

1. Boot your system with the '/genvmunix' kernel.

2. In order for the Digital UNIX operating system to recognize the HSZ50 array controller,

you must change the /sys/data/cam_data.c file. Find the HSZ40 entry, cut and paste to
duplicate it. Then change HSZ4 to HSZ5. Rebuild the kernel and copy it to root.

3. Load the RAID Array 450 for Digital UNIX CD-ROM into your CD-ROM drive.

4. Extract the subsets from the distribution CD-ROM by entering the following commands:

# mount -r -t cdfs -o rrip /dev/rz6c /mnt
# cd /mnt/du_raid

5. Install the subset package from the Bourne shell (sh) root account by entering the

following command:

# setld -l SWRAID100

Installing the package performs the following tasks (which do not need your intervention):

•

Checks for the necessary file system space (1MB)

•

Displays copyright information

•

Checks the current revision of your Digital UNIX operating system and, according to this,
installs/updates specific files or utilities

•

Checks if you have the /genvmunix kernel booted (which is required to detect all
connected hardware)

•

Installs your StorageWorks RAID Array Installation Utility for Digital UNIX

•

Creates symbolic links for new installed utilities and boot device support

•

Creates device special files using the MAKEDEV.hsz script

•

Updates the system config files

•

Prompts you just before the kernel rebuild starts

Preparing Your Host System to Operate with ESA 5-5

5.5.3.2 Creating Device Special Files Manually
_________________________Note _______________________________

In case of an error during the automatic installation of the SWRAID100
“package”, or if you add disks to your subsystem, you will need to manually
create device special files.

_____________________________________________________________

Digital UNIX contains a utility that can make all of the device special files for any single unit
in a storage subsystem. It creates block and character files for all eight partitions of the unit.
Each device special file references the major and minor number of a specific partition. You
may use one of the following methods:

•

The StorageWorks RAID utilities subset contains a simple utility that scans the available
SCSI buses and creates special device file entries.

To perform this task, enter the following commands:

# cd /dev
#./MAKEDEV.hsz

This will scan the buses and create device special files as needed. The following is an
example output:

#./MAKEDEV.hsz

Scanning buses, please be patient.................done.

rza8 @ bus1, D000 on DEC HSZ50-AX V50z
MAKEDEV: special file(s) for rza8:
rzb8 @ bus1, D001 on DEC HSZ50-AX V50z
MAKEDEV: special file(s) for rzb8:
rza9 @ bus1, D000 on DEC HSZ50-AX V50z
MAKEDEV: special file(s) for rza9:
rzc9 @ bus1, D002 on DEC HSZ50-AX V50z
MAKEDEV: special file(s) for rzc9:
Done

•

Determine the device name as described in the Getting Started RAID Array 450 for
Digital UNIX Installation Guide. You do not need to add the partition letter at the end of

the device name.
As an example, this command creates special device file entries for rzb18 (explained in

the Getting Started RAID Array 450 for Digital UNIX Installation Guide):

# cd /dev
# ./MAKEDEV rzbl8

In this example, the utility creates block mode files rzb18a through rzb18h and character
files rrzb18a through rrzb18h. You have to repeat this step for each ESA unit you have
created.

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

5-6 Preparing Your Host System to Operate with ESA

5.5.4 Rebuilding the Kernel for Digital UNIX V4.0

Digital UNIX V4.0 provides Dynamic Device Recognition (DDR). DDR simplifies the process
of adding new devices to your AlphaServer by allowing you to add new devices by rebuilding
the Kernel. The Kernel rebuild will automatically configure your ESA into the Kernel and
create device driver files for the communications logical unit you created earlier.

To configure your ESA for a system running Digital UNIX V4.0, rebuild your kernel and then
reboot the system now. For more information on rebuilding the kernel, see the doconfig man
page or your System Administration documentation.

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

Preparing Your Host System to Operate with ESA 5-7

5.6 Preparing Your HP-UX System for ESA

This section describes the procedures for installing the required device drivers onto HP 9000
Series systems running HP-UX 10.01 or higher.

_________________________Note _______________________________

When ESA is connected to non-Digital platforms, connection to one host
port per controller pair is supported.

_____________________________________________________________

5.6.1 Installing the Host Adapter

Fast wide differential (FWD) host adapters manufactured by HP can be used with the ESA and
your HP platform. FWD SCSI connectors on add-on or existing host adapters are labeled on
the rear panel of your 9000 Series computer.

_________________________Note _______________________________

•

If you have not yet installed the host adapter on your HP system, do so now using the
instructions provided with the host adapter documentation.

•

Do not connect or disconnect the SCSI bus cable with the host powered on as it could
damage the host adapter or disrupt system operations.

•

Perform the usual back-up and shutdown procedures for your host platform. Turn off
power to the host, install the host adapter. Then, power on and reboot the host.

•

Prevent SCSI bus ID conflicts. The host adapter ID is usually 7 and, if other equipment is
connected to the external bus, avoid the used SCSI IDs.

Use the isoscan command described later in this section to determine available device
IDs. For optimum RAID array performance, other devices should not be routinely in use
on the SCSI bus.

_____________________________________________________________

5.6.2 Installing the Host Device Driver

The procedures for installing HP-UX device driver(s) require you to be familiar with following
Hewlett-Packard technical manuals:

•

Installing Peripherals

•

System Administrator Tasks

•

How HP-UX Works: Concepts for the System Administrator

5-8 Preparing Your Host System to Operate with ESA

Installing the disk driver on HP-UX requires the following major steps:

1. Determine the interface required

2. Verify the availability of the required device driver

3. Reboot the system and verify the successful installation

5.6.2.1 Determine the Device Driver Required

The device drivers you will need for the array controller are listed in Table 5-2. This driver is
software configurable and is a standard part of the HP-UX operating system. Device files are
automatically created for each ESA device when you follow the procedures listed in this
section.

If you use SAM, Table 5-2 provides you with sufficient information to configure your system.
However, if you intend to customize your system's configuration, you will need to refer to
"Setting Up Devices Using HP-UX Commands" in the Installing Peripherals manual. If you
need more information on minor numbers, see "Device Files and Minor Numbers" in the
Installing Peripherals manual.

Table 5-2 HP 9000 Drivers

HP 9000 SYSTEM Drivers

800 (except K and D class) disc3, scsi3
700 (C, D, J and K class) sdisk, c720

5.6.3 Verify Host Adapter and Driver

Verify that you have the required SCSI Host Adapter and drivers available to your system. On
a Series 800 System (except for D or K Class machine) enter the following command:

# ioscan -f -d scsi3

The output from this command will be similar to the following:
Class I H/W Path Driver S/W State H/W Type Description

==================================================================
ext_bus 0 8 scsi3 CLAIMED INTERFACE HP 28696A -

Fast/Wide
SCSI
Interface

Preparing Your Host System to Operate with ESA 5-9

On a Series 700 System, C, D, J or K Class machine, enter the following command:

# ioscan -f -d c720

The output from this command will be similar to the following:
Class I H/W Path Driver S/W State H/W Type Description

==================================================================
ext_bus 0 8/7 c720 CLAIMED INTERFACE GSC built -

5.6.3.1 Editing the Kernel Using SAM

1. Execute SAM

2. Highlight and open Kernel Configuration

3. Highlight and open Drivers

4. Add the necessary drivers
Use SAM's help system to complete the task or refer to "Adding Device Drivers Using SAM"

in the Installing Peripherals manual.

5.6.3.2 Editing the Kernel Using Commands (if not using SAM)

Fast/Wide
SCSI
Interface

1. Edit the kernel configuration file using a text editor.

2. Reconfigure the kernel using the uxgen command.

3. Refer to "Setting up Devices Using HP-UX Commands" in the Installing Peripherals
manual.

5.6.4 HP-UX Series 800 Patch Installation (10.01 only)

Series 800 systems running HP-UX 10.01 require HP kernel patch PHKL_7879 to prevent the
SCSI bus from hanging under intensive SCSI I/O conditions. Contact your HP service
provider for details about obtaining and installing the patch.

5.6.5 Set the SCSI Bus Address of the Array Controller

The SCSI bus address for the array controller is set by the CLI. Refer to Chapter 2 in the
Getting Started RAID Array 450 for HP-UX Installation Guide for more information on
setting SCSI addresses.

5-10 Preparing Your Host System to Operate with ESA

5.6.6 Reboot the System and Verify Successful Installation

________________________Note _______________________________

If you have not already done so, you must configure the See "Creating a
Communication Logical Unit" in Chapter 2 of the Getting Started RAID
Array 450 V5.0 for HP-UX Installation Guide for detailed configuration
information.

____________________________________________________________ .

1. Shutdown the HP system and ensure that all power switches on the array controller and
on the host computer system are in the OFF position.

2. Connect the cable to the host SCSI adapter's connector. This cable is a differential to
differential connection and is 3 meters in length.

3. Turn on power to the HP system.

4. During the boot process, device "special" files are created for each logical unit configured
on the ESA and a Logical Unit number (LUN) is assigned to each storageset configured
on the array controller.

After rebooting the new kernel, run oscan -f to verify that the drivers are installed, the host
adapter status is OK, and all the target LUNs are identified

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

Preparing Your Host System to Operate with ESA 5-11

5.7 Preparing Your IBM System for ESA

This section describes the procedures for installing the StorageWorks software and the
required device drivers onto IBM systems running AIX 4.1.4 or 4.2. The installation steps
include organizing your system and existing files and loading the StorageWorks software onto
your hard disk.

_________________________Note _______________________________

When ESA is connected to non-Digital platforms, connection to one host
port per controller pair is supported.

_____________________________________________________________

The procedures for installing the StorageWorks software for IBM on AIX require that you be
familiar with the System Management Interface Tool, (SMIT). See the “System Management
Interface Tool” section in the System Management Guide: Operating System and Devices for
more information on the use of SMIT.

_________________________Note _______________________________

Prior to installing this software, make sure that the array controller write-back
cache battery is fully charged. This is accomplished by supplying power to the
array controller for a minimum of 6 hours.

_____________________________________________________________

5.7.1 Organizing Your System

For new installations, perform the following procedure prior to installing the StorageWorks
software:

_________________________Caution_____________________________

DO NOT plug the SCSI cable into the host connector at this time.

_____________________________________________________________

1. After installing the SCSI-2 Differential Fast/Wide Host Adapter, reboot the system
without the SCSI cable connected to the RAID controller. When the "console login"
prompt appears, log into the system as root.

2. Ensure that the SCSI-2 Differential Fast/Wide Host Adapter has been installed in the
system and configured by typing the following command and verifying the resulting
display:

# lsparent -C -k scsi_scb -H && lsparent -C -k scsi

The display is different for Micro Channel and PCI Bus Systems.

5-12 Preparing Your Host System to Operate with ESA

For MicroChannel bus systems, the following displays:

name status location description

ascsi0 Available 00-05 Wide SCSI I/O Controller Adapter
ascsi1 Available 00-06 Wide SCSI I/O Controller Adapter
scsi1 Available 00-07 SCSI I/O Controller
scsi0 Available 00-00-0S Standard SCSI I/O Controller
vscsi0 Available 00-05-00 SCSI I/O Controller Protocol Device
vscsi1 Available 00-05-01 SCSI I/O Controller Protocol Device
vscsi2 Available 00-06-00 SCSI I/O Controller Protocol Device
vscsi3 Available 00-06-01 SCSI I/O Controller Protocol Device

On MicroChannel subsystems this command displays the SCSI adapters currently configured
into the system. SCSI adapters with external SCSI expansion capability will have a -01 as the
last field under the location column heading. If your system includes only one adapter with
external expansion capability, then only one vscsi line will be displayed that contains a -01. If
your system contains multiple adapters with external expansion capability, then multiple vscsi
lines will be displayed as in the example above. If either no vscsi lines are displayed, or no
vscsi line with a -01 location is displayed, then the operating system has not correctly
configured the device. Recheck the hardware installation and retype this command.

Once you have determined that the vscsi device is configured correctly, check that the vscsi
adapter with the -01 location is listed as "Available" in the status column. If the device is
listed as "Defined" then the operating system has not correctly configured the device. In that
case, recheck the hardware installation and retype the command shown at the beginning of
Step 2.

For PCI bus systems, the following displays:

name status location description
scsi0 Available 04-C0 Wide SCSI I/O Controller
scsi1 Available 04-02 Wide SCSI I/O Controller

On PCI bus systems this command displays the Wide SCSI I/O controllers currently
configured into the system. If your system contains multiple controllers then a number of them
will be listed. Ensure that the all numeric location field (for example, 04-02) corresponds to
the slot where the Wide SCSI I/O controller (IBM FC2409) is installed and that the status
field is listed as available.

Preparing Your Host System to Operate with ESA 5-13

If the device is not listed or is shown as Defined, then the operating system has not correctly
configured the device. In that case, check the hardware installation and retype the command
shown at the beginning of this Step 2.

3. Determine the following:

{

SCSI target address of your array controller configured.

{

Number of consecutive Logical Unit Numbers (LUNs) configured on the
araycontroller.

4. Check for previously installed StorageWorks software by typing:

# odmget -quniquetype=disk/scsi/HSZ50 PdDv

5. If you locate previously installed StorageWorks software (i.e., odmget command produces
some output), delete the existing StorageWorks software using the following commands:

# odmdelete -o PdDv -q uniquetype=disk/scsi/HSZ50
# odmdelete -o PdAt -q uniquetype=disk/scsi/HSZ50
# odmdelete -o PDiagAtt -q DType=HSZ50
# odmdelete -o PDiagDev -q DType=HSZ50
# odmdelete -o errnotify -q en_rtype=HSZ50

6. Connect the SCSI cable from the host adapter to the array subsystem.

5.7.2 Installing the StorageWorks Software onto the Hard Disk

The StorageWorks software consists of the array software installation scripts and the AIX
support files.

The StorageWorks software consists of:

•

An installation and configuration script

•

ODM database files

•

ODM catalog files

5.7.2.1 Copying the File Archive from CD-ROM to Temporary Storage

Before running the installation or upgrade scripts, copy the file archive that contains the
StorageWorks software from the CD-ROM to a temporary directory. The scripts can then be
executed. You will need approximately 2 MBytes of temporary space to load the file archive
from CD-ROM.

1. Insert the StorageWorks software distribution CD-ROM into the drive.

2. Login as root (superuser).

3. Change the directory to a temporary storage area (/tmp). For example, enter the following
command:

# cd /tmp

5-14 Preparing Your Host System to Operate with ESA

4. Create a directory into which the file archive can be loaded with the following command:

# mkdir esa

5. Change to that directory using the following command:

# cd esa

6. Mount the CD-ROM using the following command:

# mount -vcdrfs -r /dev/cd0 /mnt

(Note: the name of /dev/cd0 may be different on your system.)

7. Extract the file archive from the CD-ROM by entering the following command:

# tar xvf /mnt/agents/aix/stm_aix.tar

8. All of the files necessary to complete the StorageWorks software installation have now
been copied to this directory.

5.7.2.2 Executing the Installation Script

Perform the following procedure to install the StorageWorks software onto your system:

1. Enter the following command and press RETURN:

# ./stgwks_aix.sh

The installation options menu displays:

StorageWorks and Command Console Agent
Installation and Configuration Menu

___________________________________
StorageWorks Options:

--------------------

1) Install StorageWorks software

2) StorageWorks Maintenance

Agent Options:

-------------

3) Install Agent

4) Agent Maintenance

Q) Quit
Enter Selection: 1

2. Type 1 to install StorageWorks software. The Copyright Notice and the following
information displays:

Preparing Your Host System to Operate with ESA 5-15

Copyright Digital Equipment Corp. 1994, 1995, 1996. All rights
reserved.

Restricted Rights: Use, duplication by the U.S. Government is subject
to restriction as set forth in subparagraph (c) (1) (ii) of DFARS

252.227-7013, or in FAR 52.227-19, or in FAR 52.227-14 Alt. III, as
applicable

Portions of this software are proprietary to and embody the
confidential technology of Digital Equipment Corporation. Possession,
use, or copying of this software and media is authorized only
pursuant to a valid written license from Digital or an authorized
sublicensor.

Checking User...OK
Checking AIX Revision Level...OK
Checking that SCSI-2 Adapter is installed and correctly
configured...OK
Checking for previous SWXRC or HSZ50 software
installation...OKChecking for ODM add files...OK
Checking for 4.1 ODM add files...OK
Checking for ODM catalog files...OK

Once all of the checks have been successfully completed, you will be asked about the array
controller configuration. In order for the system to recognize the devices attached to the array
controller, the Target ID (TID) and at least one Logical Unit Number (LUN) must have been
created on the array controller via the Command Line Interface (CLI). The system can
correctly configure the array controller with multiple TIDs and multiple LUNs per TID subject
to the following restrictions:

•

LUNs must start with LUN 0

•

LUNs created for each TID must be consecutive with no gaps

•

When multiple TID's have been created, the same number of LUNs per TID must also
have been created

•

If your computer system is equipped with two RAID controller storage subsystems, the
number of LUNs per TID configured on each subsystem must be the same

•

If your computer system is equipped with multiple adapters, all of the restrictions above
apply to each RAID subsystem attached to each adapter

•

The following examples are allowable subsystem configurations as they will be correctly
recognized and configured by the RS/6000:

5-16 Preparing Your Host System to Operate with ESA

•

TID 4 and LUN 0

•

TID 4 and LUN 0 and LUN 1

•

TID 6 and LUN 0 and LUN 1 and LUN 2

•

TID 4 and LUN 0, TID 6 and LUN 0

The following examples are illegal ESA subsystem configurations as they will not be correctly
recognized and configured by the AIX:

•

TID 4 and LUN 5 – AIX would create hdisk devices for TID 4, LUNs 0 through 5.

•

TID 4 and LUN 5 and LUN 6 – AIX would create TID 4, LUNs 0 through 6.

•

TID 6 and LUN 1 and LUN 4 and LUN 6 – AIX would create TID 6,LUNs 0 through 6.

•

TID 4 and LUN 5, TID 6 and LUN 5 – AIX would create TID 4, LUNs 0 through 5, and
TID 6, LUNs 0 through 5.

•

TID 4 and LUN 0, TID 6 and LUN 0 and LUN 1 – AIX would create TID 4, LUNs 0 and
1, and TID 6, LUNs 0 and 1.

3. Answer the following prompt with the correct number of LUNs configured in your system
and press RETURN.

Please enter the number of consecutive LUN's, 1..8, that
have been configured on the RAID Array: 5

For the correct examples previously listed, the answers to this question would be: 1, 2, 3
and 1.

After the correct number of LUNs is entered, the installation script verifies that the

4.

answer is within the range of 1 through 8 and continues execution until the following
information is displayed (Note: Processing time is approximately 2 minutes):

Preparing Your Host System to Operate with ESA 5-17

Maximum LUNS configured = 5 ...OK
Editing ODM Database files...OK
Adding SWXRC-04 to ODM Database...OK
Adding HSZ50 to ODM Database...OK
Moving ODM Catalog into place...OK
Configuring RAID Array into system...OK
Saving base configuration...OK
Issuing bosboot command, please standby...OK
Copying installation files to /usr/stgwks directory...OK

RAID Array Configuration Information

---------------------------------------­name status location description

hdisk2 Available 00-02-01-3,0 DEC HSZ50 RAID Array 450
hdisk3 Available 00-02-01-3,1 DEC HSZ50 RAID Array 450
hdisk4 Available 00-02-01-3,2 DEC HSZ50 RAID Array 450
hdisk5 Available 00-02-01-3,3 DEC HSZ50 RAID Array 450
hdisk6 Available 00-02-01-3,4 DEC HSZ50 RAID Array 450

This display lists the array controller devices that have been configured into the system and
recognized by the operating system.

Now that the array controller is configured and the devices recognized by the operating
system, the user is asked a series of questions regarding the use of those devices. Specifically,
the user is asked whether to allow the script to create a default set of Logical Volume
Group(s).

The installation script determines the maximum amount of storage provided by the current set
of devices attached to the RAID controller. The script allows the user to choose the size of
each file system. AIX version 4 restricts the size of file systems to 64 GBytes. Any storage
space not allocated to a file system during the installation can be used to extend the file
systems at a later date or create additional logical volumes.

If you are not familiar with the Logical Volume Manager and creation of a file system
organization, answer "Y" in the following step. This allow the installation script to create the
Logical Volume Groups, Logical Volumes, file systems, and mount points for the devices
attached to the array controller. To utilize this option, all of the logical units must have
already been created on the array controller with the CLI.

If you understand how to use the Logical Volume Manager to tailor the file systems to their
requirements or intend to install the Command Console Client (GUI) and Agent to create
additional Logical Units, answer "N" in the following step. This will cause the installation
script to perform a small amount of cleanup and complete the installation, without creating
any of the filesystem components necessary to utilize the devices in the ESA subsystem.

5-18 Preparing Your Host System to Operate with ESA

5. Enter the answer to the following prompt and press RETURN.

Please answer Y/N (Yes or No) to the following question.
Would you now like to create the Logical Volume Group(s) that will

contain the RAID Array devices? If you are planning to use the
Storage Works Command Console to create additional logical units then
answer N(no). N

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

Preparing Your Host System to Operate with ESA 5-19

5.8 Preparing Your Solaris System for ESA

This section describes the procedures for installing the required device drivers to establish
communication between the controller and your Solaris operating system.

_________________________Note _______________________________

When ESA is connected to non-Digital platforms, connection to one host
port per controller pair is supported.

_____________________________________________________________

5.8.1 Installing DECptisp onto the Hard Disk

If you have not yet installed your host adapter, follow the procedures that came with your
adapter and install it now.

_________________________Note _______________________________

Skip this section if you are using the Sun SWIS/S X1062A adapter. Follow
the procedures that came with your adapter to install the adapter and device
driver, and to ensure that the adapter is available to the system, then
proceed to Chapter 6 to install the StorageWorks Command Console
software.

_____________________________________________________________

If you are using a DEC SBS-440/450 adapter, use the following procedure to install the
DECptisp (SCSI adapter) driver.

1. Mount the CD-ROM

2. Add the DECptisp package

5.8.1.1 Mounting the CD-ROM

1. Check whether the volume management daemon (vold) is currently running. Enter the
following command:

# ps -ea | grep vold

2. Follow the steps below for "vold currently running" or "vold not currently running,"
as applicable:

If vold is currently running, do the following:

a) Insert the RAID Array 450 for Solaris CD-ROM into the CD-ROM drive.
b) Check that the volume manager has automatically mounted the CD-ROM

using the following command:.

# mount

5-20 Preparing Your Host System to Operate with ESA

________________________Note _______________________________

The system may take a few seconds to mount the CD-ROM. If the mount
command does not indicate that the CD-ROM has been mounted, wait a
short interval and then repeat the command.

_____________________________________________________________

c) Change to the Solaris–2 directory by entering the following command:

# cd /cdrom/stgwks450–v50–sun/agents/solaris

d) Proceed to Section 5.6.3 to install the DECptisp.

If vold is not currently running

a) Insert the RAID Array 450 for Solaris CD-ROM into the CD-ROM drive.
b) Mount the CD-ROM. For example, enter the following command:

# mount -F hsfs -r /dev/dsk/c0t6d0s2 /cdrom

c) Change to the Solaris–2 directory by entering the following command:

# cd /cdrom/stgwks450–v50–sun

d) Now load DECptisp described in the next section.

5.8.1.2 Loading DECptisp

To install the SCSI host adapter driver files, DECptisp, follow these steps:

1. Enter the following command:

# ./install_stgwks

A menu appears listing the available packages. Enter q at any prompt if you want to quit
this installation procedure.

2. Select the DECptisp package.

3. When the package installation completes, enter q. The pkgadd program prompts you to

reboot your computer system.

4. To reboot, enter the following command:

# cd /
# shutdown -y -i0 -g0

5. Wait for the "ok" boot prompt. Then enter the following command:

boot (your_system_boot_device_name)

When the Console Login prompt display, your drivers are installed.
You are now ready to install the StorageWorks Comand Console software. Proceed to Chapter

6 for these instructions.

Preparing Your Host System to Operate with ESA 5-21

5.9 Preparing Your Windows NT/Alpha System for ESA

This section describes how to install the required device drivers to enable communication
between the ESA and your Windows NT/Alpha operating system.

_________________________Note _______________________________

If you have not installed your KZPSA adapter, you must do so before
installing the HSZDISK.SYS driver. Refer to Chapter 2 in the Getting
Started RAID Array 450 for Windows NT/Alpha Installation Guide for
detailed information about installing the adapter.

_____________________________________________________________

1. Locate the CD-ROM disk labeled RAID Array 450 for Windows NT/Alpha. It contains the
HSZDISK.SYS driver.

2. Insert the RAID Array 450 for Windows NT CD-ROM into your CD-ROM drive.

3. From Windows NT, click on command prompt in the

4. Type the drive letter corresponding to your CD-ROM drive (e.g.,

5. Change to the alpha sub-directory by typing the following command:

CD\drivers\NTxxx\alpha

where: xxx = 3.51 or 4.0

6. Type the following command:

hszinstl drive_letter:\NT_root_directory

where:
“

drive_letter

Windows NT system files on your system (e.g.,

The installation process copies the driver into the correct subdirectory and creates the
necessary Registry entries.

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

_________________________Note _______________________________

After installing SWCC, go to Chapter 4 in the Getting Started RAID Array
450 for Windows NT/Alpha Installation Guide to complete your installation

under Windows NT. This ensures that the disks are available to the
Windows NT host.

_____________________________________________________________

” and “

NT_root_directory

Main

program group.

D:

).

” correspond to the root path of your

hszinstl c:\winnt35

).

5-22 Preparing Your Host System to Operate with ESA

5.10 Preparing Your Windows NT/Intel System for ESA

This section describes how to install the required device drivers to enable communication
between the ESA and your Windows/Intel operating system.

________________________Note _______________________________

If you have not installed your host SCSI adapter, you must do so before
installing the HSZDISK.SYS driver. Refer to Chapter 2 in the Getting
Started RAID Array 450 for Windows NT/Intel Installation Guide for
detailed information about installing the adapter.

_____________________________________________________________

1. Locate the CD-ROM disk labeled RAID Array 450 for Windows NT. It contains the
HSZDISK.SYS driver.

2. Insert the RAID Array 450 for Windows NT CD-ROM into your CD-ROM drive.

3. From Windows NT, click on command prompt in the

4. Type the drive letter corresponding to your CD-ROM drive (e.g.,

5. Change to the i386 sub-directory by typing the following command:

CD\drivers\NTxxx\i386

where: xxx = 3.51 or 4.0

6. Type the following command:

hszinstl drive_letter:\NT_root_directory

where:
“

drive_letter

Windows NT system files on your system (e.g.,

The installation process copies the driver into the correct subdirectory and creates the
necessary Registry entries.

You are now ready to install the StorageWorks Command Console software. Proceed to
Chapter 6 for these instructions.

________________________Note _______________________________

After installing SWCC, go to Chapter 4 in the Getting Started RAID Array
450 for Windows NT/Alpha Installation Guide to complete your installation

under Windows NT. This ensure that the disks are available to the
Windows NT host.

_____________________________________________________________

” and “

NT_root_directory

Main

program group.

D:

).

” correspond to the root path of your

hszinstl c:\winnt35

).

Preparing Your Host System to Operate with ESA 5-23

Installing the StorageWorks

This chapter describes the StorageWorks Command Console (SWCC) program and the
procedures for installing the SWCC. SWCC is a feature-rich, graphical user interface (GUI)
and remote management program for StorageWorks controllers. It provides an extremely user­friendly method of monitoring, configuring, and troubleshooting your ESA.

6.1 Major Features

The SWCC has the following major features:

•

High and low-level status monitoring of the storage subsystem using colored icons

•

Graphical view of the controller and its physical and logical storage elements

•

Host port SCSI bus virtual terminal connection to the storage array

6

Command Console

•

Automatic event logging in Windows NT Version 3.51

•

Graphical configuration of the storage array

•

Network connection via TCP/IP protocol

•

User and feature access protection

•

Remote fault notification by pager

Installing the StorageWorks Command Console 6-1

6.2 Program Modules

The SWCC consists of two program modules:

•

SWCC client is the GUI portion of SWCC. The client is a 32-bit application designed to
run on Microsoft Windows NT

•

SWCC agent is a host agent program that works with the client for network connectivity.
For detailed information, refer to the applicable agent user’s guide (all SWCC
documentation is located on the SWCC CD−ROM).

The SWCC modules are referred to as the client and the agent. The term SWCC refers to both
client and agent working together.

®

Version 3.51 and Windows 95® systems.

6.3 RAID Support and Terminology

The SWCC supports the following RAID configurations:

•

RAID 0—RAID 0 is the industry standard for striping. A single logical disk spans
multiple physical disks. This is the only RAID level that does not provide redundancy.
The client uses the term stripeset for a RAID 0 volume available to the host.

•

RAID 1—A single logical disk replicated on two or more physical disks. The mirroring
technique provides data redundancy. The client uses the term mirrorset for a RAID 1
volume available to the host.

•

RAID 0+1—Combines the striping of RAID 0 and the shadowing/mirroring of RAID 1,
to provide the best combination of very good performance and high availability. The
client uses the term striped mirrorset for a RAID 0+1 volume available to the host.

•

RAID 3/5—Stripes and distributes parity chunks across all members in the array. RAID
3/5 is the best choice for most applications with small to medium input/output requests
unless the application is write-intensive. The client uses the term RAIDset for a RAID
3/5 volume available to the host.

6-2 Installing the StorageWorks Command Console

6.4 Client System Requirements

SWCC connects to StorageWorks HSZ-series controllers. The TCP/IP connection must be in
operation before the program begins to issue commands and interpret the responses sent by the
controller. The user interface displays in graphical form the logical and physical layout, and
status of a selected subsystem.

Table 6-1 outlines the minimum system configuration needed to run client.

Table 6-1 Minimum PC System Configuration Requirements

Feature Minimum Requirements

PC

CPU
Speed
Memory

Intel 486
66 MHz
16 MB

Free Disk Space
Operating System

Display

Size
Type
Resolution

Input Devices

Modem
Network Adapter

10 MB
Windows NT 3.51 (Build 1057 or later)

or
Windows 95 (Build 950 or later)

15”
VGA
800 x 600

CD−ROM
Keyboard
Mouse

Hayes compatible
TCP/IP Compatible

Installing the StorageWorks Command Console 6-3

6.5 Installing the SWCC

The following steps are required to install the StorageWorks Command Console and are
shown here for reference only: Please refer to the Getting Started with Command Console
document for details about each step.

1. Install the Adobe Acrobat Reader so you can view the documentation on the

accompanying CD−ROM.

2. Access the documentation on the accompanying CD−ROM.

3. Read the release notes on the CD−ROM.

4. Choose either a local or network connection for the client.

5. Install the client software on your local system.

6. If you choose the network connection method, install the agent software in your hosts.
Refer to the StorageWorks Command Console CD-ROM online documentation for

instructions on installing the agent software specific to your operating system.

_________________________Note _______________________________

During installation of the Agent, the manufacturer of all Agents is Digital.

_____________________________________________________________

6.6 Agent Connection Licensing

The network version of Client comes with a built-in license to connect to one Agent program.
If you wish to run the network version of the product with more than one Agent, you must
enter a license number that determines the number of Agents to which you can connect Client.
The first three digits of the license number indicate the number of Agent connections allowed
by the license.

When you run the network version of Client for the first time after it is installed, and you wish
to connect to more than one Agent, you must enter your license number into Client’s licensing
facility. To enter your license, do the following:

1. Select the License Upgrade option from the Settings menu.

2. Enter the three-digit prefix of your license, followed by a 20-digit numeric string. Your
number can be found on a sticker on the outside of the StorageWorks Command Console
CD—ROM.

3. Click OK after you have entered and checked your full license number.

If you wish only to connect to one Agent, you do not need to enter a license number.

6-4 Installing the StorageWorks Command Console

6.6.1 Installing Additional Agents

You may want to install Agents on your other host systems. To install more Agent progams,
simply repeat the procedure above, using the appropriate host system name and Agent type for
each session.

Remember to check your license before you add additional Agents. If you exceed the number
of Agent connections allowed by your license, you must purchase a license upgrade.

6.7 Next Steps

You have successfully completed all the procedures necessary to install the ESA.
You are now ready for the Multivendor Customer Service Integration organization to

configure your system.

Installing the StorageWorks Command Console 6-5

Glossary

ac power supply

A power supply designed to produce dc
power from an ac input.

American National Standards Institute
See ANSI.
ANSI

American National Standards Institute.
An organization that develops and
publishes electronic and mechanical
standards.

blower

An airflow device mounted in a
StorageWorks shelf.

cable distribution unit
See CDU.
carrier

A standard, StorageWorks shelf­compatible, plastic shell into which a
device can be installed. Sometimes called
SBB carrier.

data center cabinet

A generic reference to the large cabinets,
such as the cabinet in which
StorageWorks enterprise storage array
components are mounted.

ECB

A External Cache Battery. A device
housed in a standard StorageWorks SBB
carrier that mounts in a SBB shelf. It
provides cache backup power to the
controller cache module.

fan

An airflow device mounted in a
StorageWorks cabinet.

filler panel

A sheet metal or plastic panel used to
cover unused mounting areas in
StorageWorks cabinets and shelves.

host

The primary or controlling computer to
which a storage subsystem is attached.

CDU

Cable distribution unit. The power entry
device for StorageWorks cabinets. The
unit provides the connections necessary to
distribute ac power to cabinet shelves and
fans.

controller

A hardware/software device that facilitates
communications between a host and one
or more devices. A controller translates
bus protocols and hardware interfaces and
adds functionality to the host/device
communications.

redundant

A configuration in which there is backup
hardware in place for the hardware that is
present.

SBB

StorageWorks building block. A device
housed in a standard StorageWorks SBB
carrier. An SBB has a standard physical
and electrical interface that is compatible
with those of StorageWorks shelves and
enclosures.

SBB shelf

StorageWorks building block shelf. A
StorageWorks shelf, such as the BA350–
Sx, designed to house plug-in SBB
modules.

Glossary 1

SCSI

Small Computer System Interface

Small Computer System Interface. An
ANSI interface defining the physical and
electrical parameters of a parallel I/O bus
used to connect hosts to a maximum of
seven devices. The StorageWorks device
interface is implemented according to the
SCSI–2 standard, allowing the
synchronous transfer of 8-bit data at rates
of up to 10 MB/s.

skirt

A trim panel designed to mount around
the base of the cabinet.

See SCSI.
StorageWorks
Digital's family of modular data storage

products that allows customers to
design and configure their own storage
subsystems. Components include
power, packaging, cabling, devices,
controllers, and software. Customers
can integrate devices and array
controllers in StorageWorks enclosures
to form storage subsystems.

StorageWorks building block
See SBB.

Glossary 2