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RA7000
User Manual
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HP RA7000, ESA10000 User Manual

RA7000 / ESA10000 High Availability Solution Kit for HP-UX
Installation Guide
EK–HAHPU–MH. B01
Digital Equipment Corporation Maynard, Massachusetts
1st Edition, July 1998
This software is proprietary to and embodies the confidential technology of Digital Equipment Corporation.
Possession, use or copying of the software described in this publication is authorized only pursuant to a valid written license from Digital Equipment Corporation or an authorized sublicensor.
Digital Equipment Corporation makes no representation that the use of its products in the manner described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.
UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.
Hewlett Packard and MC/ServiceGuard are registered trademarks of Hewlett Packard Corporation.
The following are trademarks of Digital Equipment Corporation: DEC, RAID Array 7000 (RA7000), Enterprise Storage Array 10000 (ESA10000),
HSZ70, StorageWorks, and the DIGITAL Logo.
© Digital Equipment Corporation, 1998. All Rights Reserved Printed in U.S.A.
Contents
Revision Record
About This Guide
An Overview of the RAID High Availability Cluster Solution for HP-UX.........................vii
Defining a “Clustered Host Server” ................................................................................. viii
Audience ......................................................................................................................... viii
Document Structure......................................................................................................... viii
Associated Documents.........................................................................................................x
Conventions........................................................................................................................xi
Support and Services ..........................................................................................................xi
DIGITAL StorageWorks Web Site Address.......................................................................xii
Getting Started
RA7000 / ESA10000 (HA) Cluster Solution for HP-UX ROADMAP............................... xiii
1 Pre-Installation Steps
1.1 Verify (RA7000/ESA10000 for HP-UX) Cluster Requirements ..............................1–1
1.2 Inventory the RAID SCSI Connection Kit...............................................................1–2
1.3 Perform a System Backup.......................................................................................1–4
1.4 Plan the Cluster Layout (SCSI Bus Interconnect) ...................................................1–4
1.5 Prepare the SCSI Host Adapters..............................................................................1–6
1.5.1 Set Unique SCSI Host Adapter IDs ................................ ................................ ...1–6
1.5.2 SCSI Host Adapter Resistor Pack Removal (for mid-bus or end-bus RAID cluster
layouts only).....................................................................................................1–7
2 Cabling the RAID Subsystem Cluster Components
2.1 Connecting RAID Subsystem Components through the SCSI Bus...........................2–1
2.2 Mid-Bus RAID Cluster Layout - (SCSI Bus Interconnect).....................................2–2
2.3 HUB-Radiant RAID Cluster Layout - (SCSI Bus Interconnect)...............................2–3
2.4 End-Bus RAID Cluster Layout - (SCSI Bus Interconnect).......................................2–4
EK–HAHPU–MH. B01 iii
RA7000 / ESA10000 High Availability Solution Kit for HP-UX
3 Software Setup Requirements for a Cluster
3.1 Software Requirements Summary...........................................................................3–1
3.2 Installing the StorageWorks CC RAID Manager Software......................................3–1
3.3 Creating the RAID Storageset Configuration ..........................................................3–2
3.4 Installing and Configuring MC/ServiceGuard Cluster Software..............................3–2
3.5 Running the SWCC Failover Transition Module Installation Script ........................3–3
A Cabling and Termination Required to Expand a Cluster
A.1 Hardware Configuration of an Expanded Cluster ................................................... A–1
A.1.1 Adding Host Servers to an Existing Cluster ..................................................... A–2
A.1.2 Adding a Second RAID Subsystem to an Existing Cluster ............................... A–4
B De-Installing the StorageWorks Command Console Agent
B.1 StorageWorks CC Agent De-Installation Procedures.............................................. B–1
Figures
1 RAID High Availability Cluster Concept..................................................................vii
1–1 SCSI Host Adapter Model A28696A.......................................................................1–8
1–2 SCSI Host Adapter Model A2969A ........................................................................1–8
1–3 SCSI Host Adapter Model A4107A ........................................................................1–9
2–1 Mid-Bus RAID Cluster Layout (SCSI Bus Interconnect).........................................2–2
2–2 Hub-Radiant RAID Cluster Layout (SCSI Bus Interconnect) ..................................2–3
2–3 End-Bus RAID Cluster Layout (SCSI Bus Interconnect).........................................2–4
A–1 Expanded Cluster................................................................................................... A–2
A–2 Adding Host Servers to an Existing Cluster ........................................................... A–3
Tables
1 Associated StorageWorks and HP Documents.............................................................x
2 Style Conventions......................................................................................................xi
1–1 RAID RA7000 / ESA10000 for HP-UX - Cluster Prerequisites...............................1–1
1–2 RAID SCSI Connection Kit Contents (by kit number) ...........................................1–3
1–3 RAID Subsystem Basic Cluster (SCSI Bus) Layout Options...................................1–5
iv EK–HAHPU–MH. B01
Revision Record
This Revision Record provides a concise publication history of t his manual. I t lists the manual revision levels, release dates, and reasons for the revisions.
The following revision history lists all revisions of this publication and their effective dates. The publication part number is included in the Revision Level column, with the last entry denoting the latest revision.
This publication supports the StorageWorks RA7000 / ESA10000 Subsystem configured with or without a SCSI hub interconnect to two Hewlett Packard host servers running the HP-UX (Version 10.20 or later) operating system. The SCSI host adapters supported are HP models A28696A, A2969A and A4107A (all High Density 68-Pin compatible). Hewlett Packard MC/ServiceGuard (Version
10.10 or later) is the cluster software supported by this publication.
Revision Level Date Summary of Changes
EK–HAHPU–MH. A01 July 1998 Original release. EK–HAHPU–MH. B01 September 1998 Second release.
EK–HAHPU–MH. B01 v
About This Guide
This section provides an over view of a StorageWor ks RAID high availability ( HA) cluster storage environment and defines t he scope and conventions of this guide. It ident ifies associated reference documentat ion, and t he St or ageWorks sales, service, and technical support contacts worldwide.
An Overview of the RAID High Availability Cluster Solution for HP-UX
The RA7000 / ESA10000 Cluster solution for HP-UX enables two (or more) Hewlett Packard host servers to share a RAID storage subsystem through a SCSI bus, with MC/ServiceGuard cluster software. Should a failure on a host server occur, the failure is detected and the I/O is re-routed through to a functioning host server. This process, called failover, requires no resource downtime ­ensuring the high availability of data. The failed component(s) can be warm­swapped or serviced while functioning components remain active.
Figure 1 RAID High Availability Cluster Concept
H e artbe at 1
Server A
AA
H e artbe at 2
RAID
Subsystem
Server B
Clients
HR-1
24
-
Figure 1 shows a basic cluster layout, where two host servers share a RAID subsystem via a single SCSI bus. It is possible to expand a cluster to include additional host servers on a single SCSI bus, or a second RAID subsystem on a separate SCSI bus. Illustrations of expanded clusters are provided in Appendix A of this guide.
EK–HAHPU–MH. B01 vii
RA7000 / ESA10000 High Availability Solution Kit for HP-UX
Defining a “Clustered Host Server”
For the host servers to be considered part of “the cluster” (e.g., share the RAID subsystem(s) and possess I/O failover capabilities), each server must be configured with MC/ServiceGuard cluster software, (including a “package” to failover the RAID CC agent), and the SCSI pass through device drivers that enable the SWCC agent to communicate with the RAID subsystem(s).
This guide provides a master procedural roadmap to establish a “basic” cluster of shared RAID storage, focusing on cluster hardware and software configuration tasks. It begins with a new, boxed RAID subsystem and two HP host servers. Procedures for expanding a cluster are also discussed.
Audience
This guide is intended for experienced administrators and system integrators of HP host server and StorageWorks RA7000 / ESA10000 storage subsystem equipment. Setting up a cluster requires a general understanding of HP server networks, RAID storage concepts, HP MC/ServiceGuard cluster software and SCSI hardware configurations. Or, contact your service representative for installation assistance.
Document Structure
This guide contains the following chapters:
Getting Started
This section provides a roadmap to serve as the master procedural guide for establishing a cluster.
Chapter 1: Pre-Installation Steps
This chapter addresses the preparation needed before installing the hardware components of the RAID subsystem cluster. It provides a guide to your options in planning the cluster layout (e.g., the shared RAID subsystem, host servers and, if applicable, the SCSI hub), through the SCSI bus. This chapter also describes how to prepare the two SCSI host adapter boards for a cluster environment.
viii EK–HAHPU–MH. B01
About This Guide
Chapter 2: Cabling the RAID Subsystem Cluster Components
This chapter describes the procedures for cabling a RAID subsystem to two HP host servers based on the cluster (SCSI) layout option selected in this guide. (Reference Appendix A if clustering more than two hosts or more than one RAID subsystem). It provides detailed illustrations of the cabling and termination required to support HD68-pin SCSI host adapter compatibility, and the use of a SCSI hub.
Chapter 1
of
Chapter 3: Software Setup Requirements for a Cluster
This chapter summarizes and describes, in sequence, each of the software setups required to establish a cluster environment between multiple HP-UX host servers and a shared RAID storage subsystem. It explains how to access, invoke and interact with the SWCC Failover Transition Module Installation Script, which automatically configures the cluster for the seamless failover of the StorageWorks Command Console RAID Manager agent in the event of a server shutdown.
Appendix A: Cabling and Termination Required to Expand a Cluster
An expanded cluster is one in which more than two host servers are connected to a RAID subsystem on the same SCSI bus, or where a second RAID subsystem is added to the cluster on a separate SCSI bus. Appendix A provides the hardware cabling and termination, and highlights the software configurations required to expand a cluster.
Appendix B: De-Installing the SWCC Failover Transition Module
This appendix describes how to reverse the installation of the StorageWorks Command Console Failover Transition Module (agent) within a cluster.
EK–HAHPU–MH. B01 ix
RA7000 / ESA10000 High Availability Solution Kit for HP-UX
Associated Documents
In addition to this guide, the following documentation is useful to the reader:
Table 1 Associated StorageWorks and MC/ServiceGuard Documents
DIGITAL StorageWorks Document Title Order Number
Getting Started - HSZ70 Solutions Software V7.1 for HP-UX
Release Notes - RAID Array 7000 / Enterprise Storage Array 10000 for HP-UX
RA7000 and ESA10000 Storage Subsystem User’s Guide Configuring Your StorageWorks Subsystem HSZ70
Array Controllers Version 7.0 Servicing Your StorageWorks Subsystem HSZ70
Array Controllers HSOF Version 7.0 16-Bit SCSI Bus Hub (DWXXH)
SWCC Command Console 2.0 User’s Guide CLI Reference Manual HSZ70 Array Controllers
HSOF Version 7.0
AA-R84KB-TE
AA-R84LA-TE
EK-SMCPP-UG
EK-HSZ70-CG
EK- HSZ70-SV EK-DWZZH-UG
AA-R60EA-TE
EK-CLI70–RM
HP MC/ServiceGuard Document Title
HP A2969A HP-HSC Fast/Wide Differential SCSI Adapter Installation and Service guide
HP-PB Fast/Wide High-Performance SCSI Adapter Installation and Service guide (for host adapter 28696)
HP A4107A SCSI Adapter Installation and Service guide Hands-On with High Availability and MC/ServiceGuard
Student Workbook (Version A.02) Managing MC/ServiceGuard
B3936-90019
A2969-90001
28696-90001
A4107-90001
H6487
To Order HEWLETT PACKARD products
To order Hewlett Packard MC/ServiceGuard cluster software/documentation, contact your local sales representative, or contact the HP Customer Support hotline at:
US Customers: 1-800-633-3600
Hewlett Packard Customer Support can also be reached through electronic mail at:
http://www.hp.com
x EK–HAHPU–MH. B01
Conventions
In this guide, references to
subsystem
•
pertain to
RAID Array 7000 (RA7000) or Enterprise Storage Array (ESA) 10000 The term High Availability is abbreviated as (HA). This guide uses the following documentation conventions:
Table 2 Style Conventions Style Meaning
boldface monospace type
italic type
plain monospace type Screen text. # Represents the HP system prompt. Do not
StorageWorks RAID Array, controller, HSZ70 or
To be input by the user. For emphasis, manual titles, utilities, menus,
screens, and filenames.
type it as part of information to be input by the user.
StorageWorks Support and Services
About This Guide
Who to contact in the Americas
Information and Product Questions
Installation Support:
DIGITAL Multivendor Customer Service (MCS) Installation
Warranty
Remedial
Customer Support Center (CSC)
EK–HAHPU–MH. B01 xi
: Local Sales Office / StorageWorks Hotline
1-800-786-7967 Contact the DIGITAL Distributor where the
Storage Solution was Purchased / Local DIGITAL Sales Office.
Contact the DIGITAL Customer Support Center (CSC).
Contact the DIGITAL Customer Support Center (CSC) for warranty service after s olution is installed and operating.
Contact the DIGITAL Customer Support Center (CSC).
: A Service Contract is recommended
Note
when the equipment is out of warranty. Contact the local DIGITAL Sales Office.
1- 800-354-9000
RA7000 / ESA10000 High Availability Solution Kit for HP-UX
Who to contact in Europe
Information and Product Questions, Contact the DIGITAL Distributor or reseller Installation Support, and Installation: from whom the Storage Solution was
purchased.
For Warranty Service See the Warranty Card packaged with the
product.
For Remedial Service Contact the DIGITAL Distributor or reseller
from whom the Storage Solution was purchased.
Note: A Service Contract is recommended when the equipment is out of warranty.
Who to contact in Asia Pacific
For all services, contact the DIGITAL Distributor or reseller from whom the equipment was purchased.
Visit our Web Site for the Latest Information
The latest StorageWorks documentation and technical tips can be found at:
http://www.storage.digital.com
xii EK–HAHPU–MH. B01
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