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

ii
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.

iii
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

iv
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

v
Preface
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.
• 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

vi
Documentation Conventions
This guide uses the following conventions:
Convention Description
boldface type Boldface type indicates the first instance of terms
being defined in text, in the glossary, or both.
italic type
Italic type indicates emphasis and complete manual
titles. In the glossary, italic type also is used to
indicate cross-references.
Related Documentation
The following table lists StorageWorks user documentation shipped with the Enterprise
Storage Array.
Provided Documentation
Document Title Order Number
HSZ50 Array Controller, Operating Software V 5.0, Release Notes
EK–HSZ50–RN
CLI Reference Manual
EK–HSCLI–RM
Configuring Your StorageWorks Subsystem
EK–HSZ50–CG
Servicing Your StorageWorks Subsystem
EK–HSZ50–SV
StorageWorks Solutions
Enterprise Storage Arrays Installation Guide
EK–SWESA–IG
Enterprise Storage Arrays SBB User’s Guide
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
EK–SW800–UG
StorageWorks Solutions
7 Device, 16–Bit SBB Shelf (BA356–S) Series User’s Guide
EK–BA356–UG
StorageWorks Solutions
8–Bit I/O Module (BA35X–MG) User’s Guide
EK–35XMG–UG
StorageWorks Solutions
Configuration Planning Guide
EK–BA350–PG
StorageWorks Solutions
SBB User’s Guide
EK-SBB35-UG
StorageWorks Solutions
Product Catalog
EK–BA350–PC

vii
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.
_____________________________________________________________

viii
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 Power Level
LWAd, B
Sound Pressure Level
LpAmd BA, (Bystander
Positions)
Product Idle Operate Idle Operate
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)
6.8 6.9 58.9 59.9
16-Bit SBB Shelf (BA356-JC series) with:
2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)
5.6 5.6 37 37
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)
5.8 5.9 40 41
Schalleistungspegel
LWAd, B
Schalldruckpegel
LpAm, dBA
(Beistehende Position)
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
16-Bit SBB Shelf (BA356-JC series) with:
2 — Dual Speed Blowers (BA35X-MD)
2 — 150W ac input Power Supplies (BA35X-HF)
5,6 5,6 37 37
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)
5,8 5,9 40 41

Overview of the Enterprise Storage Array 1-1
1
Overview of the Enterprise
Storage Array
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 transaction-
oriented 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
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.

1-2 Overview of the Enterprise Storage Array
1.3 Major Components
This section describes the major components of the ESA as shown in Figure 1-1.
Figure 1-1 ESA Major Components
SBB
shelf
Controller
shelf
CDU
CXO-5414A-MC
Cabinet
1 2 3 4 5 6
1 2 3 4 5 6
Fan
Fan tray
assembly
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.

Overview of the Enterprise Storage Array 1-3
• 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.

1-4 Overview of the Enterprise Storage Array
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.

SBB Device Operation 2-1
2
SBB Device Operation
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).
Figure 2-1 SBB Shelf
CXO-5411A-MC
76543210

2-2 SBB Device Operation
Figure 2-2 SBB Shelf with I/O Module
CXO-5375A-MC
Lower
mounting
tab
JA1
JB1
Upper
mounting
tab
Cable
I/O module
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.

SBB Device Operation 2-3
Figure 2-3 Blower Assembly
Blower 1
CXO-5084A-MC
Blower 2
• 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.

2-4 SBB Device Operation
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
CXO-4787A-MC
Shelf
status LED
(Green)
Power supply
status LED
(Green)
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
associated
power bus (either
power bus A or power bus B) are functioning properly.
At
least one
power supply SBB on the associated power bus
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.

SBB Device Operation 2-5
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
CXO-4652A-MC
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 ON and the amber Device Fault LED is
FLASHING, the SBB is active and is spinning down.
Recommended Corrective Action:
1. Quiesce the bus.
2. When the device is spun down (the green LED is OFF), replace the SBB.

2-6 SBB Device Operation
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

SBB Device Operation 2-7
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
CXO-4536A-MC
Right
blower
fault LED
Left
blower
fault LED
Upper
mounting
tab
Lower
mounting
tab
Bus
connector
JA1
Bus
connector
JB1
Chassis
Backplane
connector
Printed
circuit
board
J5
address
jumper

2-8 SBB Device Operation
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.