HP ESA10000 User's Manual
Contents
1. from the cluster EK HAHPU MH B01 Reader s Comments Manual Order Number EK HAHPU MH B01 DIGITAL is committed to providing the best products and services Since our manuals are important components of our products we value your comments corrections and suggestions for improvements Please take a few minutes to fill out and return this form Attach additional sheets if necessary Thank you Manual Rating Excellent Good Fair Poor Accuracy correct presentation of facts Completeness adequate information Clarity easy to understand Organization logical sequence of information Layout easy to follow subject matter Indexing easy to locate desired information Leg Ed mm Si HA aut mm A LEE MA o o mn LL E iiL Errors Noted include page paragraph table or figure number Most Liked Features Least Liked Feature Suggestions for Improvement Return Address Digital Equipment Corporation Customer Research Title Response Center 334 South Street SHR3 2 W3 Name Company Shrewsbury MA 01545 Street Address Mail Stop City Country if other than USA2. Adapter In A28696A Figure 1 1 A2969A Figure 1 2 A4107A Figure 1 3 1 5 1 Set Unique SCSI Host Adapter IDs It is mandatory that each server in a cluster have a unique SCSI host adapter ID target ID The default setting of a SCSI host adapter ID is 7 One of the hosts in the cluster can maintain this ID Typically the SCSI IDs for each added server should decrease one number from 7 6 5 4 etc to ensure that an unused device number is selected for the server ID Use the dip switch on board the SCSI host adapter s to manually set the SCSI host adapter ID on each host server in the cluster to an unused number Two host adapters in the same server can have the same SCSI ID as long as the adapters are not on the same SCSI bus Reference the Figure for your SCSI host adapter model to locate the SCSI ID dip switch pack EK HAHPU MH B01 Chapter 1 Pre Installation Steps 1 5 2 SCSI Host Adapter Resistor Pack Removal To remove the resistor packs terminators on board the SCSI host adapters in a Mid Bus RAID or End Bus RAID cluster layout reference the figure for your host adapter board model and proceed as follows NOTE Do not remove SCSI host adapter resistor packs in hub radiant RAID cluster layouts 1 Follow normal procedures to shutdown all host servers in the cluster 2 If applicable consult the system manual to remove the cover of the server cases and remove the SCSI host adapter board s from all host serv
3. steps 1 Attach a Y cable BN21W 0B to the HD68 pin host adapter on Host A 2 Attach a Y cable BN21W OB to the HD68 pin host adapter on Host B 3 Attach compatible end of a5M adapter cable BN38C 05 to one end of the Y cable attached to Host A 4 Connect the other end VHDCI compatible of the adapter cable to the end of a tri link connector on a subsystem controller 5 Attach compatible end of the short adapter cable BN38E OB to one end of the Y cable attached to Host B 6 Connect the other end VHDCI compatible of the adapter cable to the end of UltraSCSI cable BN37A 05 7 Remove the terminator that occupies the tri link connector on the subsystem controller 8 Attach the remaining end of the VHDCI UltraSCSI cable attached to Host A to the available tri link connector on the subsystem controller 9 Connect a terminator H879 AA to the available end of the Y cable on Host A and to the available end of the Y cable on Host B Figure 2 1 Mid Bus RAID Cluster Layout SCSI Bus Interconnect RA7000 or ESA10000 HOSTA Subsystem HOST B HD68 Host HD68 Host Adapter RE Adapter BN21W 0B 3 9 BN21W 0B LEO Y Cable Y Cable Terminator BN38C 05 BN37A 05 BN38E 0B Terminator H879 AA VHDCI to HD68 VHDCI to VHDCI VHDCI to HD68 H879 AA Adapter Cable UltraSCSI Cable Adapter Cable SHR 1092 EK HAHPU MH B01 Chapter 2 Cabling the RAID Subsystem Cluster Components 2 3 HUB Radiant RAID Clu
4. End Bus RAID Cluster Layout SCSI Bus Interconnect To connect two HP host servers to a RAID subsystem located on the end of the SCSI bus e g an End Bus RAID cluster layout reference Figure 2 3 and follow these steps 1 Attach a Y cable BN21W 0B to the HD68 pin host adapter on Host A 2 Attach a Y cable BN21W 0B to the HD68 pin host adapter on Host B 3 Attach one end of the HD68 pin straight thru cable BN21K 05 to a convenient end of the Y cable attached to Host A 4 Connect the other end of the cable to a convenient end of the Y cable attached to Host B 5 Attach the compatible end of the 5M adapter cable BN38C 05 to the available end of the HD68 pin Y cable attached to Host B 6 Connect the other VHDCI compatible end of the adapter cable to the available end of a tri link connector on a subsystem controller 7 Connect terminator H8863 AA to the available end of a tri link connector on a subsystem controller 8 Connect terminator H879 AA to the available end of the Y cable attached to Host A Figure 2 3 End Bus RAID Cluster Layout SCSI Bus Interconnect HOST A HOSTB RA7000 or ESA10000 Subsystem HD68 Host Adapter HD68 Host Adapter Terminator H8863 AA o o BN37A 0E 1 Tri Link BN21W 0B Y Cable BN21W 0B Y Cable Terminator BN21K 05 BN38C 05 H879 AA HD68 Straight Thru VHDCI to HD68 Adapter Cable SHR 1094 2 4 EK HAHPU M
5. H B01 3 Software Setup Requirements for a Cluster This chapter summarizes and describes in sequence each of the software setups required to establish a high availability cluster environment between multiple HP UX host servers and a shared RAID storage subsystem 3 1 3 2 Software Requirements Summary The software setups required to establish a cluster between your RAID subsystem and HP host servers must be performed in the sequence provided in this chapter which is as follows e Install the StorageWorks Command Console SWCC RAID Manager software e Create the RAID storageset configuration e Install and configure MC ServiceGuard cluster software on all clustered host servers e Install configure the HP SCSI pass through device driver software on all remaining host servers comprising the RAID subsystem cluster e Run the SWCC Failover Transition Module Installation Script Installing the StorageWorks CC RAID Manager Software The StorageWorks Command Console agent software which enables management of the RAID subsystem must be installed and configured on any host server in the cluster from which you choose to perform the initial cluster configuration work This server is designated as the primary host and all other servers in the cluster secondary This designation must remain constant throughout the procedures described in this chapter Reference the Getting Started HSZ70 Solutions Software V7 1 for
6. HP UX Chapters 3 and 4 for procedures to install the StorageWorks CC RAID Manager Software on your primary host server Chapter 3 is required to prepare your primary host server with the SPT device driver that facilitates communication with the RAID subsystem and for configuring the HP UX file system EK HAHPU MH B01 3 1 RA7000 ESA10000 High Availability Solution Kit for HP UX 3 3 3 4 3 2 Creating the RAID StorageSet Configuration Reference the Getting Started HSZ70 Solutions Software V7 1 for HP UX Chapters 6 or 7 and Appendices A and B to plan and create your RAID storageset configuration Installing and Configuring HP MC ServiceGuard Cluster Software HP MC ServiceGuard cluster software must be installed and configured on all host servers that share the RAID subsystem CAUTION If a server is connected to a cluster but is not configured with MC ServiceGuard software undesirable conditions could result Reference the HP Managing MC ServiceGuard manual to install and configure MC ServiceGuard cluster software on all primary and secondary HP host servers that comprise your cluster NOTES When you are using MC ServiceGuard and assigning the MAX_CONFIGURED_PACKAGES allow an extra package assignment for the SWCC agent For a cluster containing more than two servers The rhosts file must contain the hostname root or IPaddress root of all servers in the MC ServiceGuard cluster not jus
7. LI Reference Manual HSZ70 Array Controllers HSOF Version 7 0 EK CLI70 RM HP MC ServiceGuard Document Title HP A2969A HP HSC Fast Wide Differential SCSI Adapter Installation and Service guide A2969 90001 HP PB Fast Wide High Performance SCSI Adapter Installation and Service guide for host adapter 28696 28696 90001 HP A4107A SCSI Adapter Installation and Service guide A4107 90001 Hands On with High Availability and MC ServiceGuard H6487 Student Workbook Version A 02 Managing MC ServiceGuard B3936 90019 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 About This Guide Conventions In this guide references to StorageWorks RAID Array controller HSZ70 or subsystem pertain to e 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 boldface monospace type italic type plain monospace type StorageWorks Support and Services Who to contact in the Americas Information and Product Questions Installation Support Meaning To be input by the user For em
8. 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 overview of a StorageWorks RAID high availability HA cluster storage environment and defines the scope and conventions of this guide It identifies associated reference documentation and the StorageWorks 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 warm swapped or serviced while functioning components remain active Figure 1 RAID High Availability Cluster Concept Heartbeat 1 Server B Clients RAID Subsystem SHR 1024 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 sing
9. ailability Solution Kit for HP UX Figure A 1 Expanded Cluster Network Inconnect Heartbeat 1 Heartbeat 2 Server A ServerB Server C A A A A A A 5 SCSI Bus 1 Termination IS SCSI Bus2 Termination Raid Subsystem Raid Subsystem A 1 1 Adding Host Servers to an Existing Cluster Each host server added to a cluster requires the following cables BN21K xx HD68 Pin straight thru BN21W 0B HD68 Pin Y cable 5 SCSI Bus 1 il Termination __ J scsi Bus 2 Termination SHR 1131 A 2 EK HAHPU MH B01 Appendix A Cabling and Termination Required to Expand a Cluster To add a host server to a basic End Bus or Mid Bus RAID subsystem cluster reference Figure A 2 and proceed as follows 1 Follow normal procedures to backup the all the devices in the existing cluster 2 Follow normal procedures to power down all the devices in the existing cluster 3 Attach a Y cable BN21W OB to the SCSI host adapter of the server being added to the cluster 4 Connect cable BN21K 05 HD68 pin straight thru to an end of the Y cable just attached to your new server 5 Remove the external terminator H879AA connected to the end of the Y cable of the last server on the SCSI bus in your existing cluster 6 Attach the terminator just removed to the remaining end of the Y cable connected to your new server 7 Connect one end of cable BN21K 05 HD68 Pin straight thru to the e
10. cting two HP host servers and a shared StorageWorks RAID subsystem through the SCSI bus and externally terminating the bus as applicable Interconnection procedures for locating the RAID subsystem in a Mid Bus Hub Radiant and End Bus layout are provided based upon the basic cluster layout selected in Chapter 1 2 1 Connecting RAID Subsystem Components through the SCSI Bus Based on the basic RAID cluster SCSI bus layout option you have selected locate the procedures in this section cross referenced in Chapter 1 Table 1 1 of this guide to cable and terminate the cluster components through the SCSI bus When you have finished reboot all the servers in the cluster NOTES e The following procedures assume that the SCSI host adapters have been prepared e g on board resistor packs removed and SCSI IDs set as described in Chapter 1 e For clarity in Figures 2 1 through 2 3 the VHDCI SCSI cables and terminators are shaded and the HD68 pin fast wide SCSI components are white Cables and terminators supplied with your RAID subsystem supplement the components in your RAID SCSI Connection Kit See Chapter 1 Table 1 2 EK HAHPU MH B01 2 1 RA7000 ESA10000 High Availability Solution Kit for HP UX 2 2 2 2 Mid Bus RAID Cluster Layout SCSI Bus Interconnect To connect two HP hosts on the two ends of the SCSI bus e g a Mid Bus RAID cluster layout with a RAID subsystem reference Figure 2 1 and follow these
11. dlilg i t a 1 StorageWorks RA7000 ESA10000 High Availability Solution Kit for HP UX Installation Guide EK HAHPU MH B01 Digital Equipment Corporation Maynard Massachusetts 1st Edition July 1998 The disclosure of this information does not grant the user a license under any patents pending patents trademarks or copyrights or other rights of Digital Equipment Corporation or of any third party 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 ESA 10000 HSZ70 StorageWorks and the DIGITAL Log
12. e SCSI bus first define the two ends of the SCSI bus by selecting where you want to locate the RAID subsystem on the bus relative to the other components the two HP hosts and if applicable the SCSI Hub Determining the RAID location depends on your preference or any physical limitations of your facility see Note below You can locate the RAID subsystem e In the middle of the SCSI bus Mid Bus RAID e Radiating from a Hub Hub Radiant RAID e Onanend of the SCSI bus End Bus RAID NOTE The maximum bus length for a mid bus or an end bus RAID layout is 25M include the Y cable length when calculating total bus length For a hub radiant RAID layout the maximum distance of each radial arm from the hub to a device is 25M EK HAHPU MH B01 Chapter 1 Pre Installation Steps Table 1 3 RAID Subsystem Basic Cluster SCSI Bus Layout Options For This Cluster Layout Option And This Type of Reference This v Host Adapter Section amp Figure Mid Bus RAID HD68 Pin RA7000 ESA10000 Host A Subsystem Host B SHR 1021 Mid Bus RAID For This Cluster U Option And This sd of Reference This Host Adapter BOUES cm gure Hub RAID HD68 Pin RA7000 ESA10000 Subsystem SHR 1023 Hub Radiant RAID For This Cluster n Option And This DEED of Reference This Host Adapter Section amp Figure End N RAID HD68 Pi
13. ed to a Mid Bus RAID subsystem cluster layout NOTES The second RAID subsystem must be configured as defined in the RoadMap of the Getting Started section of this guide Follow normal procedures to backup the existing cluster devices and then power down the cluster devices prior to connecting the second subsystem Reference Chapter 2 Cabling the RAID Subsystem Components for the parts and procedures required to cable and terminate a SCSI bus integrating the following differences that apply to the second subsystem 1 Physically cable the second RAID subsystem to the same two host servers as the first existing RAID subsystem 2 Connect the Y cables to the second host adapter in each server 3 Be sure to terminate both ends of the second SCSI bus EK HAHPU MH B01 De Installing the StorageWorks Command Console Agent This appendix describes how to reverse the installation of the StorageWorks CC Agent within a cluster B 1 StorageWorks CC Agent De Installation Procedures To de install the CC agent and the CC agent package from the cluster enter the following command base_dir steam bin stgwks sh Select menu option 4 of the first menu Then select menu option 5 of the subsequent menu You will be prompted to exit to remove pass through drivers if installed and then prompted to confirm the directory location Answer yes to both prompts to remove the CC agent and the MC ServiceGuard CC agent package
14. ers in the cluster 3 Locate the resistor packs on the SCSI host adapter board s 4 Gently remove the resistors from the SCSI host adapter boards 5 Install the SCSI host adapter board s into the servers according to the SCSI host adapter installation manual supplied with your SCSI host adapter model NOTE Do not reboot the host servers at this time The SCSI host adapters are now prepared for a cluster environment Proceed to Chapter 2 Cabling the RAID Subsystem Cluster Components EK HAHPU MH B01 1 7 RA7000 ESA10000 High Availability Solution Kit for HP UX Figure 1 1 SCSI Host Adapter Model A28696A Faceplate Termination Resistor Packs R13 R14 R15 SCSI Adapter ID Switch Pack S1 SHR 1122 Figure 1 2 SCSI Host Adapter Model A2969A Terminator Resistor Packs R23 R24 R25 SCSI Adapter ID Switch Pack SW1 SHR 1121 1 8 EK HAHPU MH B01 Chapter 1 Pre Installation Steps Figure 1 3 SCSI Host Adapter Model A4107A Termination Resistor Packs UC1 UC2 UC3 SCSI Adapter ID Switch Packs S1 Faceplate SHR 1123 EK HAHPU MH B01 1 9 2 Cabling the RAID Subsystem Cluster Components This chapter provides the procedures for interconne
15. esentative or call the StorageWorks Hotline at 1 800 STORWORK 786 7967 EK HAHPU MH B01 Chapter 1 Pre Installation Steps Table 1 2 RAID SCSI Connection Kit Contents listed by kit number RAID SCSI Connection Kit Parts Identification BN21K 05 Kit Kit Kit SWXKT DE JSWXKT EA JSWXKT DF 1 I HD68 Straight Thru Cable lo BN37A 05 VHDCI UltraSCSI Straight Thru Cable BN38C 05 Ol VHDCI to HD68 Adapter Cable 5 meter lol VHDCI to HD68 Adapter Cable 2 1 HD68 Pin Y Cable 2 VHDCI Y Cable 2 H879 AA HD68 M Differential Terminator 2 H8863 AA VHDCIM Differential Terminator 2 DS DWZZH 03 ich 9 3 Port 1 a Ea Differential Hub SHR 1026 NOTES Above VHDCI UltraSCSI parts are shaded HD68 Pin fast wide SCSI are white 2 To supplement the RAID SCSI Connections Kit please locate the following parts supplied with your RAID subsystem e One BN37A 05 VHDCI UItraSCSI straight thru cable RA7000 e One BN38E 0B VHDCI to HD68 Pin Adapter cable RA7000 ESA1000 EK HAHPU MH B01 1 3 RA7000 ESA10000 High Availability Solution Kit for HP UX 1 3 1 4 14 Perform a System Backup Follow normal procedures to backup the RAID subsystem and the host servers in your cluster as applicable prior to installing any of the cluster components Plan the Basic Cluster Layout SCSI Bus Interconnect To plan the layout of cluster components through th
16. 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 Getting Started This section contains a roadmap to serve as your master guide for establishing a high availability cluster between two or more HP UX host servers and a shared RAID subsystem This roadmap presides over all other documentation supplied with your equipment and refers to those resources as more technical depth is required RA7000 ESA10000 HA Cluster Solution for HP UX RoadMap STEP PERFORM THIS PROCEDURE DESCRIBED IN Q 1 All Pre Installation steps RA7000 ESA10000 Cluster Including Solutions for HP UX Chapter 1 Verify Cluster Requirements Verify SCSI Connection Kit Contents o Perform a System Backup o Plan the Cluster SCSI bus Layout o Prepare the SCSI Host Adapters a 2 Unpack and Setup the RAID Getting Started HSZ70 Solutions Subsystem Software V7 1 for HP UX Chapter 1 or 2 a 3 Cable and Terminate the Cluster RA7000 ESA10000 Cluster Components Solutions for HP UX Chapter 2 Install the StorageWorks Command Getting Started HSZ70 Solutions Console CC RAID Manager Software Software V7 1 for HP UX Chapter 4 a 5 Create the RAID Storage Configuration Getting Started HSZ70 Solutions Software V7 1 for HP UX Chapter 6 or 7 and Appe
17. le 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
18. n 24 23 RA7000 ESA10000 Host B Subsystem SHR 1022 End Bus RAID EK HAHPU MH B01 1 5 RA7000 ESA10000 High Availability Solution Kit for HP UX 1 5 1 6 Use Table 1 3 to select the basic cluster layout that best suits your environment Prepare and install the SCSI host adapters into your servers as described in Section 1 5 Prepare the SCSI Host Adapters Then reference Chapter 2 Cabling the RAID Subsystem Cluster Components to proceed with the basic cluster installation Prepare the SCSI Host Adapters Each of the host servers in the RAID subsystem cluster requires at least one supported SCSI host adapter be installed Expanding a cluster with a second RAID subsystem requires two SCSI host adapters per server Prior to installing the SCSI host adapter s into each server as described in your HP Host Adapter installation and service guide you must prepare each one for a cluster environment This involves two main steps e Setting a unique SCSI host adapter ID e For Mid Bus RAID and End Bus RAID cluster layouts only Removing the resistor packs terminators on board the SCSI host adapter The procedures for setting unique SCSI host adapter IDs and removing resistor packs from the SCSI host adapters are contained in the following sections As you perform these steps reference the figure that corresponds to your SCSI host adapter model as follows SCSI Host Illustrated
19. nd of the Y cable of the server from which the terminator was removed 8 Connect the other end of cable BN21K 05 to the available end of the Y cable of your new server Figure A 2 Adding Host Servers to an Existing Cluster Host Server Host Server Host Adapter Host Ajdapter co a EI 9 BN21W 08 HD 68 Pin Y Cable BN21W 08 HD 68 Pin Y Cable Connects To I Next Server or gt The Raid System End Of Bus Must Be Terminated Terminator H879AA BN21K05 HD 68 Pin Straight Thru SHR 1128 EK HAHPU MH B01 A 3 RA7000 ESA10000 High Availability Solution Kit for HP UX A 4 NOTES Repeat these procedures for each new server to be added to the cluster When finished follow normal procedures to power up all cluster devices Make sure that each server added to the cluster is configured for a cluster according to Chapter 3 of this guide A 1 2 Adding a Second RAID Subsystem to an Existing Cluster A second RAID subsystem can be added to an existing cluster by building a second separate SCSI bus between the existing clustered servers and the new RAID subsystem This requires a second SCSI host adapter be prepared and installed reference Chapter 1 Pre Installation Steps in each of the host servers comprising the cluster In this scenario both RAID subsystems can be shared by all clustered servers Figure A 1 illustrates the cluster layout when a second subsystem and more than two servers are add
20. ndix B Install Configure HP MC ServiceGuard HP Managing MC ServiceGuard on all Clustered Host Servers manual a 7 Run the SWCC Failover Transition RA7000 ESA10000 Cluster Module Installation Script Solutions for HP UX Chapter 3 ier Test Monitor and Manage the Cluster HP Managing MC ServiceGuard manual EK HAHPU MH B01 xiii 1 Pre Installation Steps This chapter addresses the preparation needed before installing and configuring the RA7000 ESA10000 cluster hardware components The pre installation steps required to support a cluster are as follows e Verify Cluster Requirements e Inventory the SCSI Connection Kit e Perform a System Backup e Plan the Cluster Layout e g the SCSI Bus Interconnect e Prepare the SCSI Host Adapters 1 1 Verify RAID RA7000 ESA 10000 for HP UX Cluster Requirements Please verify that the cluster requirements listed in Table 1 1 are met Table 1 1 RAID RA7000 ESA10000 for HP UX Cluster Prerequisites Two minimum HP host servers Storage Subsystem StorageWorks RA7000 or ESA10000 RAID subsystem RAID Controllers Two StorageWorks HSZ70 controllers per RAID subsystem trilinked operating firmware V7 0 SCSI Host Adapters HP HD68 pin one adapter per host server Supported models A28696A A2969A A4107A Additional Items Reference Table 1 2 for contents Technical Documentation The reference guides for the RAID subsystem HP servers and MC ServiceGuard cluster software su
21. ng and Termination Required to Expand a Cluster This appendix summarizes how to expand a basic two server single RAID subsystem cluster to support additional servers and or a second RAID subsystem This appendix assumes that the pre installation hardware and software configuration procedures for a basic cluster have been performed as described in this guide and focuses only on the procedures required for cluster expansion A 1 Hardware Configuration of an Expanded Cluster A basic cluster 2 server single RAID subsystem configured in an End Bus RAID or Mid Bus RAID cluster layout can be expanded in two ways 1 By adding host servers to a single SCSI bus 2 By adding a second RAID subsystem via a separate SCSI bus Figure A 1 shows an expanded cluster where one or more servers have been added the cluster by extending the SCSI bus of the basic cluster and a second RAID subsystem has been added on a separate SCSI bus Both RAID subsystems can be accessed by all clustered servers The two heartbeats shown in Figure A 1 represent the failover capabilities configurable between clustered servers using MC ServiceGuard software In other words all servers with MC ServiceGuard software can be configured to failover any other server in the cluster that has MC ServiceGuard software The cabling and termination required to expand a cluster are discussed and illustrated in the following sections EK HAHPU MH B01 A 1 RA7000 ESA10000 High Av
22. o 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 vil Defining a Clustered Host Server iana i a ai en a i viii IENE E A E E RR ERE viii Document Str ct rer a oo ie o ti A eh a ht i Vili Associated DOCU MENS ELL LUNA AMI RG ee OR ia d x Conventions Support and Services DIGITAL StorageWorks Web Site Address ii xii Getting Started RA7000 ESA 10000 HA Cluster Solution for HP UX ROADMAP em xiii 1 Pre Installation Steps 1 1 Verify RA7000 ESA 10000 for HP UX Cluster Requirements 1 1 1 2 Inventory the RAID SCSI Connection Kit i 1 2 1 3 Perform System Backup nini e eee Pe ih tet e dens 1 4 1 4 Plan the Cluster Layout SCSI Bus Interconnect eee 1 4 1 5 Prepare the SCSI Host Adapters non ccnnncnn nora reme 1 6 1 5 1 Set Unique SCSI Host Adapter IDs esee eene 1 6 1 52 SCSI Host Adapter Resistor Pack Removal for mid bus or end bus RAID cluster layo tsionly e Denkeniee 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 Clu
23. ole 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 AA R84KB TE Release Notes RAID Array 7000 Enterprise Storage Array 10000 for HP UX AA R84LA TE RA7000 and ESA10000 Storage Subsystem User s Guide EK SMCPP UG Configuring Your StorageWorks Subsystem HSZ70 Array Controllers Version 7 0 EK HSZ70 CG Servicing Your StorageWorks Subsystem HSZ70 Array Controllers HSOF Version 7 0 EK HSZ70 SV 16 Bit SCSI Bus Hub DWXXH EK DWZZH UG SWCC Command Console 2 0 User s Guide AA R60EA TE C
24. ownload a copy of the tar file ha_stm_hp01 tar into your tmp directory from the following Storage Works website address http www storage digital com menusupport htm 2 Set your current directory to tmp 3 Extract the script software from the downloaded files by issuing this command tar xvf tmp ha stm hpOl tar EK HAHPU MH B01 3 3 RA7000 ESA10000 High Availability Solution Kit for HP UX NOTES You MUST be root to proceed with the installation process The capital letter at the end of each script prompt represents the default response 4 Run the shell script by issuing this command tmp ha_install_hp sh The SWCC Failover Transition Module Installation Script will prompt you to make several selections regarding your specific cluster configuration options For the seamless failover of the SWCC transition module agent be prepared to provide the script with the following information as prompted e name of root directory to place the SWCC software e subnet address of the cluster e dedicated IP address for the SWCC failover agent this is the IP address used by the SWCC client in order for you to configure and monitor the RAID subsystem within the cluster The installation of the SWCC Failover Transition Module in your cluster is now complete Reference your HP Managing MC ServiceGuard manual for procedures to test server failover and to monitor and manage your cluster 3 4 EK HAHPU MH B01 A Cabli
25. phasis manual titles utilities menus screens and filenames Screen text Represents the HP system prompt Do not type it as part of information to be input by the user Local Sales Office StorageWorks Hotline 1 800 786 7967 Contact the DIGITAL Distributor where the Storage Solution was Purchased Local DIGITAL Sales Office DIGITAL Multivendor Customer Service MCS Installation Warranty Remedial Customer Support Center CSC EK HAHPU MH B01 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 Note A Service Contract is recommended when the equipment is out of warranty Contact the local DIGITAL Sales Office 1 800 354 9000 xi 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
26. pplement this installation guide EK HAHPU MH B01 1 1 RA7000 ESA10000 High Availability Solution Kit for HP UX 1 2 1 2 NOTES 1 All of the host features that are supported by the platform kit are also supported in the RAID HP cluster environment 2 The installation of a hub requires a 3 5 SSB slot available in your StorageWorks pedestal or shelf Inventory the RAID SCSI Connection Kit Three types of RAID SCSI Connection Kits exist Each kit supports the connection of two host servers to a RAID subsystem via a single SCSI bus To connect more than two host servers in a cluster or to add a second RAID subsystem additional parts must be ordered Reference Appendix A for parts required to expand a cluster The part numbers and purpose served by each kit is as follows e SWXKT DE for connecting the RAID subsystem to servers having HD68 pin host adapters e SWXKT DF for connecting the RAID subsystem to servers having VHDCI UltraSCSI host adapters e SWXKT EA for connecting the RAID subsystem through a hub to servers having either HD68 pin or VHDCI host adapters both adapters must be the same type This kit is not applicable to a RAID RA7000 ESA10000 Cluster for HP UX Please verify that the connection kit you have received is specific to your cluster needs and use Table 1 2 to inventory its contents If you are missing any hardware component required for a cluster please contact your local sales repr
27. 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 Vili 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 Chapter 1 of 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 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 Cons
28. ster Layout SCSI Bus Interconnect sese 2 2 2 3 HUB Radiant RAID Cluster Layout SCSI Bus Interconnect 2 3 2 4 End Bus RAID Cluster Layout SCSI Bus Interconnect 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 i 3 1 3 2 Installing the StorageWorks CC RAID Manager Software esses 3 1 3 3 Creating the RAID Storageset Configuration esee 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 eee A 1 1 Adding Host Servers to an Existing Cluster A 1 2 Adding a Second RAID Subsystem to an Existing Cluster B De Installing the Storage Works Command Console Agent B 1 StorageWorks CC Agent De Installation Procedures eee B 1 Figures 1 RAID High Availability Cluster Concept vii 1 1 SCSI Host Adapter Model A28696A nan conan ncnnc cnn rennen 1 2 SCSI Host Adapter Model A2969A e 1 3 SCSI Host Adapter Model A4107A 2 1 Mid Bus RAID Clus
29. ster Layout SCSI Interconnect To connect two HP host servers to a RAID subsystem via use of a Hub e g a Hub Radiant RAID cluster layout reference Figure 2 2 and follow these steps 1 Attach compatible end of the 5M adapter cable BN38C 05 to the HD68 pin host adapter on Host A 2 Connect the other end of the adapter cable to a convenient hub port 3 Attach the compatible end of the short adapter cable BN38E OB to the HD68 pin host adapter on Host B 4 Connect the other end of the short adapter cable to the end of an UltraSCSI cable BN37A 05 5 Attach the remaining end of the UltraSCSI cable to a convenient hub port 6 Connect one end of an UltraSCSI cable BN37A 05 to a subsystem controller Attach the other end of the UltraSCSI cable to the remaining hub port Connect a terminator H8863 AA to the remaining tri link connector on the subsystem controller Figure 2 2 Hub Radiant RAID Cluster Layout SCSI Bus Interconnect HOST A HOST B HD68 Host DS DWZZH 03 HD68 Host Agapier UltraSCSI HUB poene A 3 Port VHDCI EIS Il x BN38E 0B VHDCI to HD68 BN38C 05 Adapter Cable VHDCI to HD68 Adapter Cable ne x UltraSCSI Cable BN37A 0E Tri Link BN37A 05 Terminator H8863 AA RA7000 or ESA10000 Subsystem SHn098 NOTE In hub configurations termination is internal to the hub EK HAHPU MH B01 2 3 RA7000 ESA10000 High Availability Solution Kit for HP UX 2 4
30. t the two servers connected to the RAID subsystem EK HAHPU MH B01 3 5 Chapter 3 Software Setup Requirements for a Cluster Running the SWCC Failover Transition Module Installation Script The SWCC Failover Transition Module Installation Script automates the final software configuration tasks required to establish failover of the StorageWorks Command Console agent which are e Install the HP SCSI pass through device drivers on all the remaining clustered servers These drivers should already reside on your primary host via the SWCC agent installation process performed in Section 3 2 WARNING Installing the SCSI pass through drivers requires a reboot of all servers on which it will be installed e Install the SWCC Failover Transition Module agent in an MC ServiceGuard package on all clustered servers In order for the SWCC RAID Manager agent to failover in the case of a server shutdown it must be installed in a package in the MC ServiceGuard software that resides on each host server A copy of the package resides on all hosts Under normal operating conditions the RAID Manager will run on the primary host only When the primary host is unavailable as in a failover MC ServiceGuard will start up the RAID Manager on a secondary assigned takeover host To obtain and invoke the SWCC Failover Transition Module Installation Script required for your MC ServiceGuard cluster configuration proceed as follows 1 D
31. ter Layout SCSI Bus Interconnect 2 2 Hub Radiant RAID Cluster Layout SCSI Bus Interconnect 2 3 2 3 End Bus RAID Cluster Layout SCSI Bus Interconnect esses 2 4 A 1 Expanded Cl stet onam e be ERO ed deep A 2 A 2 Adding Host Servers to an Existing Cluster sese A 3 Tables 1 Associated StorageWorks and HP Documents eene x 2 Style Convention ene ail xi 1 1 RAID RA7000 ESA10000 for HP UX Cluster Prerequisites 1 2 RAID SCSI Connection Kit Contents by kit number eee 1 3 RAID Subsystem Basic Cluster SCSI Bus Layout Options iv EK HAHPU MH B01 Revision Record This Revision Record provides a concise publication history of this manual It 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 ESA 10000 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
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