IBM totalstorage 326 Service manual

IBM TotalStorage
™
Network Attached Storage 300
Model 326
User’s Reference
Release 2.5
GA27-4276-02


Note
Before using this information and the product it supports, be sure to read the general information in “Appendix A. Notices” on
page 127.
First Edition (June 2002)
This edition applies to Release 2.5 of the IBM 5195 TotalStorage Network Attached Storage 300 (Model 326, product
number 5195–326) and to all subsequent releases and modifications until otherwise indicated in new editions.
Order publications through your IBM representative or the IBM branch office servicing your locality. Publications are
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© Copyright International Business Machines Corporation 2002. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Figures ...........................vii
Tables ............................ix
About this book ........................xi
Who should read this book .....................xi
Frequently used terms ......................xi
Publications ..........................xi
Descriptions of the Model 326 publications ..............xii
Hardcopy publications shipped with the Model 326 ...........xii
Related publications ......................xii
Web sites ...........................xii
Chapter 1. Introduction ......................1
Roadmap for setting up and configuring the Model 326 ..........3
Cluster setup requirements .....................6
Chapter 2. Configuration and administration tools ...........9
Using a keyboard, monitor, and mouse for setup and configuration ......9
Summary of configuration and administration tools ............9
Terminal Services and the IBM NAS Administration Console ........12
Installing Terminal Services ...................12
Connecting to the desktop through Terminal Services..........12
IBM NAS Administration console .................13
Determining who is using the network-attached storage .........13
IBM Advanced Appliance Configuration Utility..............13
Initial network adapter selection and connection to the IAACU ......14
IAACU Agent ........................15
IAACU Console........................15
Universal Manageability Services ..................21
System requirements .....................21
Starting UM Services .....................22
Windows 2000 for Network Attached Storage..............23
Telnet Server support ......................24
SNMP support .........................24
Chapter 3. Getting started ....................25
Methods for setting up the Model 326 ................25
Installing the IBM Advanced Appliance Configuration Utility........25
Accessing Universal Manageability Services .............26
Initial setup and configuration ...................26
Setting the date and time ....................27
Setting up the network .....................27
Chapter 4. Setting up storage ...................29
Direct-managed method for managing the 5191 RAID Storage Controller . . . 29
Starting Enterprise Management ..................31
Starting Subsystem Management ..................32
Changing storage-subsystem host type ...............32
Renaming storage subsystems ..................32
Creating arrays and logical drives .................32
Creating arrays and LUNs under the Storage Manager Application .....32
Expanding the LUN ......................33
© Copyright IBM Corp. 2002 iii

Formatting the logical drives ...................35
Chapter 5. Completing networking, clustering, and storage access setup 37
Networking setup ........................37
Configuring the interconnect (private) network adapter .........37
Configuring the public local area connection .............38
Verifying network connectivity and names resolution ..........39
Checking or changing the network binding order ...........39
Joining a node to a domain ....................40
Cluster setup .........................40
Configuring clusters .......................41
Configuring cluster state and properties ...............41
Setting up cluster resource balancing ...............42
Setting up failover .......................42
Creating users ........................43
Defining UNIX users and groups .................43
Creating clustered file shares (CIFS and NFS) ............47
Powering off and powering on the Model 326.............49
Recovering from a corrupted Quorum drive .............50
Before you add software ... ....................51
Chapter 6. Managing and protecting the network and storage ......53
IBM Director ..........................53
Dependencies ........................54
Hardware requirements .....................54
Director extensions ......................55
Naming conventions ......................55
Web-based access ......................55
Disaster recovery .......................56
Software distribution ......................56
Real-time diagnostics .....................57
Rack Manager and inventory enhancements .............57
Dynamic NAS groups .....................58
NAS Web UI task .......................58
Electronic Service Agent (eSA) ..................58
Predictive Failure Analysis....................59
For more information......................59
NAS Backup Assistant ......................59
Restoring using the NT Backup panel ...............60
Persistent Images ........................61
Global Settings ........................62
Volume Settings .......................62
Persistent Images .......................62
Schedules .........................63
Restore Persistent Images ...................64
Disaster Recovery.......................64
Granting user access to persistent image files ............68
PSM notes .........................68
Microsoft Services for UNIX and NFS Support .............72
Configuring Server for NFS ...................73
Antivirus protection .......................75
Chapter 7. Managing adapters and controllers ............77
Managing Fibre Channel host bus adapters ..............77
Enabling communication between system management adapters ......78
Enabling ISMP to RSA communication on a single machine .......80
iv Model 326 User’s Reference

Using the ISMP and RSA ....................80
Enabling Ethernet adapter teaming .................81
Intel adapters ........................81
Alacritech 10/100 Quad-Port Ethernet adapter ............82
PRO/1000 XT Server adapter ..................83
Adding a second IBM 5191 RAID Storage Controller Model 0RU ......83
RAID mirroring .........................84
Memory notes .........................84
Adding more engine memory to increase performance .........84
Using the Recovery CD-ROM if you have added more processor memory 84
Chapter 8. Troubleshooting....................85
IBM 5187 Network Attached Storage Model 6RZ ............85
Engine diagnostic tools overview .................85
Identifying problems using LEDs .................86
Engine troubleshooting charts..................89
Power problems .......................91
Recovering BIOS .......................92
Replacing the battery .....................93
Adapter troubleshooting and diagnostics ...............96
Troubleshooting the integrated Ethernet adapter ...........96
Troubleshooting the Gigabit Ethernet SX adapter ...........100
Troubleshooting the Alacritech 10/100 Quad-Port Ethernet adapter ....101
Troubleshooting the PRO/1000 XT Server adapter ..........102
Troubleshooting the ServeRAID-4Lx ...............103
Troubleshooting the SCSI HVD 3570 adapter ............107
Testing the Fibre Channel host adapter with FAStT MSJ ........108
Testing the Integrated System Management Processor .........109
Testing the Remote Supervisor Adapter ..............110
Testing SCSI adapters .....................111
IBM 3534 Fibre Channel Hub Model 1RU...............111
Hub diagnostics .......................112
IBM 5191 RAID Storage Controller Model 0RU (storage controller) .....113
Replacing hot-swap drives ...................116
IBM 5192 Storage Unit Model 0RU (storage unit) ............118
Chapter 9. Using the Recovery and Supplementary CDs ........123
Using the Recovery Enablement Diskette and Recovery CD ........123
Using the Supplementary CD ...................125
Appendix A. Notices ......................127
Trademarks..........................128
Appendix B. Getting help, service, and information ..........129
Service support ........................129
Before you call for service ....................130
Getting customer support and service ................130
Getting help online: www.ibm.com/storage/support ..........130
Getting help by telephone ...................131
Appendix C. Purchasing additional services ............133
Warranty and repair services ...................133
Appendix D. Engine POST and diagnostic program messages .....135
Power-on self-test (POST) ....................135
POST beep code descriptions ..................135
Contents v

POST beep codes ......................137
POST error messages.....................140
Event/error logs .......................145
Diagnostic program messages...................145
Text messages .......................146
Starting the diagnostic programs .................146
Viewing the test log......................148
Diagnostic error message tables .................148
Appendix E. Setup procedures and diagnostics for the Fibre Channel Hub 155
General information.......................155
Isolating a system fault ....................155
Removing power .......................155
Service actions for error messages ................155
Setting up partnering with the 3534 Fibre-managed hubs .........155
Setting IP Address of Fibre Hub and Fibre Switch ...........156
Running diagnostics on the hub ..................157
Attaching to the serial port while the hub is off ............157
Attaching to the serial port while the hub is on ............158
Running diagnostics from a Telnet session on the Ethernet .......158
Diagnostic tests during POST ..................158
Diagnostic commands ......................159
Diagnostic command descriptions .................160
Error messages ........................165
Action codes and recommended actions ..............165
Diagnostic error message formats ................165
Error message tables .....................165
Appendix F. Fast!UTIL options ..................171
Configuration settings ......................171
Host adapter settings .....................171
Selectable boot settings ....................172
Restore default settings ....................172
Raw NVRAM data ......................172
Advanced adapter settings ...................172
Extended Firmware Settings ..................174
Scan Fibre Channel Devices ...................175
Fibre Disk Utility ........................175
Loopback Data Test ......................176
Select Host Adapter ......................176
Appendix G. Customer Replaceable Unit (CRU) list ..........177
Appendix H. Adapter placement tables...............181
Glossary of terms and abbreviations ...............203
Index ............................221
vi Model 326 User’s Reference

Figures
1. File share dependencies ............................47
2. Diagnostics panel LEDs ............................88
3. Boot block jumper location ...........................93
4. Battery removal ...............................95
5. Battery replacement..............................95
© Copyright IBM Corp. 2002 vii

viii Model 326 User’s Reference

Tables
1. Networking information worksheet for the public connection ...............7
2. Summary of configuration and administration tools for the Model 326 ...........10
3. Example of local area connection names and network adapter IP addresses .........39
4. Persistent image global settings .........................62
5. Persistent image volume settings .........................62
6. ISMP compared to the RSA ...........................79
7. Power supply LEDs ..............................87
8. Descriptions of light-path diagnostics LEDs .....................89
9. Engine troubleshooting symptoms and actions ....................90
10. Power error messages.............................91
11. Integrated Ethernet adapter troubleshooting chart ...................97
12. 10/100 PCI Ethernet adapter troubleshooting chart ..................98
13. Gigabit Ethernet SX adapter troubleshooting chart ..................100
14. Alacritech 10/100 Quad-Port Ethernet adapter LED definitions..............101
15. PRO/1000 XT Server adapter troubleshooting chart .................102
16. ServeRAID-4Lx problems and actions.......................106
17. SCSI HVD 3570 adapter troubleshooting chart ...................108
18. HUB front panel LED status indicators ......................111
19. Hub POST tests...............................112
20. Hub offline and online tests ..........................113
21. Storage controller troubleshooting ........................113
22. Storage unit troubleshooting table ........................118
23. Supplementary CD directories .........................126
24. IBM Web sites for help, services, and information ..................129
25. POST beep codes ..............................137
26. POST no-beep codes ............................139
27. POST error messages ............................140
28. Diagnostic error messages...........................148
29. Hub POST diagnostic tests ..........................158
30. Hub action codes ..............................165
31. Hub diagnostic error messages .........................166
32. Hub system error messages ..........................169
33. Host adapter settings .............................171
34. Advanced adapter settings ...........................172
35. Extended firmware settings ..........................174
36. RIO operation modes.............................174
37. Connection options .............................174
38. 5186-36U Rack ...............................177
39. 5197–6RZ Engine ..............................177
40. 5191–0RU RAID Storage Controller .......................178
41. 5192–0RU Storage Unit ............................178
42. 3534–1RUHub...............................179
43. One-adapter configuration ...........................181
44. Two-adapter configuration ...........................181
45. Three-adapter configuration ..........................182
46. Four-adapter configuration ...........................184
47. Five-adapter configuration ...........................189
© Copyright IBM Corp. 2002 ix

xModel 326 User’s Reference

About this book
This book provides information necessary to configure and administer the IBM 5195
TotalStorage Network Attached Storage 300, Model 326.
Hereafter, the IBM 5195 TotalStorage Network Attached Storage 300, Model 326, is
referred to as the Model 326.
Who should read this book
This book is for Model 326 administrators.
The Model 326 administrator should have experience in at least the following skills,
or have access to personnel with experience in these skills:
vMicrosoft
®
Windows
®
and Windows Advanced Server
vNetworking and network management
vDisk management
vSAN management
vGeneral technologies of the product (such as Microsoft Cluster Service, Services
for UNIX
®
, storage, RAID, and so on)
vCritical business issues (such as backup, disaster recovery, security)
Frequently used terms
This document contains certain notices that relate to a specific topic. The caution
and danger notices also appear in the multilingual Safety Information on the
Documentation CD that came with the appliance. Each notice is numbered for easy
reference to the corresponding notices in the Safety Information.
The following terms, used within this document or within the Safety Information,
have these specific meanings:
Term Definition in this document
Attention These notices indicate possible damage to programs, devices, or
data. An attention notice is placed just before the instruction or
situation in which damage could occur.
Caution These notices indicate situations that can be potentially hazardous
to you. A caution notice is placed just before descriptions of
potentially hazardous procedure steps or situations.
Danger These notices indicate situations that can be potentially lethal or
extremely hazardous to you. A danger notice is placed just before
descriptions of potentially lethal or extremely hazardous procedure
steps or situations.
Notes These notices provide important tips, guidance, or advice.
Publications
The latest versions of the following product publications are available in softcopy at:
http://www.ibm.com/storage/support/nas
© Copyright IBM Corp. 2002 xi

Descriptions of the Model 326 publications
The Model 326 library consists of the following publications:
vHardware Installation Guide
This book describes hardware physical specifications, electrical specifications,
cabling, environmental specifications, and networking specifications for installing
the Model 326.
vUser’s Reference
This book describes such operational and administrative activities as:
–Using the configuration utilities
–Administering the Model 326
–Troubleshooting
–Using the Recovery and Supplementary CDs
Hardcopy publications shipped with the Model 326
The following publications are shipped in hardcopy and are also provided in
softcopy (PDF) form at:
http://www.ibm.com/storage/support/nas
vIBM 5195 TotalStorage Network Attached Storage 300 Installation Guide,
GA27-4275
vRelease Notes
This document provides any changes that were not available at the time this
book was produced.
Note that the User’s Reference is provided in softcopy only.
Related publications
The following publications contain additional information about the Model 326:
vNetwork Attached Storage 300 Installation Guide GA27–4275
vNetwork Attached Storage 300 Service Guide GA27–4277
vUM Services User’s Guide (on the Documentation CD that came with the
appliance)
Additional information on Universal Manageability Services, IBM Director, and
Advanced System Management is located on the Documentation CD that came with
the appliance.
Web sites
The following Web site has additional and up-to-date information about the Model
326:
vhttp://www.ibm.com/storage/nas/
A highly recommended Web site: for the latest troubleshooting guidance and
symptom-fix tip information, go to the IBM support Web site at:
vhttp://www.ibm.com/storage/support/nas
This site contains additional information, gathered from field experience, not
available when this document was developed.
xii Model 326 User’s Reference

Chapter 1. Introduction
This appliance offers a storage solution for both Windows, UNIX, and UNIX-like
environments, including mixed Windows-UNIX environments that enable Windows
and UNIX clients and servers to share the same Fibre Channel storage. With the
Model 326 integrated storage appliance, your enterprise will gain a scalable,
network-attached storage device that delivers state-of-the-art systems management
capabilities and task-optimized operating system technology. The Model 326
provides your enterprise with increased performance, storage capacity, and
functionality.
This appliance has been developed for workgroup or department environments with
file-serving requirements across Windows and UNIX clients, e-business, and
numerous applications. In addition, this device supports Ethernet LAN environments
with large or shared end-user workspace storage, remote running of executables,
remote user data access, and personal data migration.
This new machine replaces the IBM 5195 Model 325. Enhancements provided by
the Model 326 include:
vGreater granularity in configuring storage size
vTwice the maximum storage size
vMore options in configuring Ethernet connections
vMore options for tape backup
The Model 326 is a two-node appliance server and features:
vOne Rack 36U (with two Power Distribution Units)
vTwo engines (IBM 5187 Network Attached Storage Model 6RZ), each with:
–Dual 1.133 GHz processors
–1 GB memory
–Two redundant 270-watt power supplies
–Fibre Channel adapter
–Four high-performance PCI adapter slots for plugging in optional 10/100 and
Gigabit Ethernet, Fibre Channel, and management adapters. (Communication
between the two engines takes place through an integrated 10/100 Mbps
Ethernet port on each engine’s planar board.)
vTwo Fibre Channel hubs
vOne Fibre Channel RAID storage controller (with a minimum of three and up to
ten 36.4 or 73.4 GB hot-swappable hard disk drives)
vOptional storage:
–An additional RAID storage controller
–Maximum of seven storage expansion units, each populated with three to ten
36.4 or 73.4 GB hot-swappable hard disk drives
vA 1GB memory upgrade
vOptional adapters:
–Single-port 10/100 Ethernet adapter
–Quad-port 10/100 Ethernet adapter
–Gigabit Ethernet adapter
–ServeRAID-4Lx adapter
–Remote Supervisor Adapter
–Dual-port Fibre Channel Host-Bus Adapter
© Copyright IBM Corp. 2002 1

In addition, the Model 326 provides clustering and failover protection with its two
nodes. This high-availability design helps protect against appliance failure and
increases uptime to provide continuous access to data.
Note: Throughout this book, information about the Model 326 node and engine
applies to both its nodes and engines.
The preloaded software is based on the Windows Powered OS operating system,
which is very similar to Microsoft
®
Windows
®
2000 Advanced Server. Preloaded
software includes:
Microsoft Windows 2000 for Network Attached Storage
Enables remote administration of the appliance using a Web-based
graphical user interface (GUI).
Microsoft Cluster Service
Provides clustering support and failover.
Microsoft Windows Terminal Services
Enables remote administration of the appliance using its Windows desktop.
Microsoft Services for UNIX
Provides file access to UNIX and UNIX-based clients and servers through
the Network File System (NFS) protocol. Note that the Model 326 supports
Linux and other platforms that employ NFS.
IBM Director Agent and Universal Manageability Server Extensions
Provides system management support based on industry standards (in
conjunction with the IBM Director console application as well as other
management software).
IBM Advanced Appliance Configuration Utility agent
Supports management through the IBM Advanced Appliance Configuration
Utility console application (supports aggregate Web-based management of
all of your IBM appliances).
IBM FAStT Storage Manager for Windows 2000
Provides RAID configuration management for the external RAID controllers
and storage expansion units.
ServeRAID Manager RAID Configuration and Monitoring
Provides configuration tools and RAID management of the ServeRAID-4Lx
adapter.
IBM FAStT Management Suite Java (MSJ)
Provides diagnostics for the Fibre Channel adapters.
Intel PROSet II
Provides diagnostics for the Intel Ethernet adapters.
Alacritech
®
SLICuser
Provides diagnostics for the quad-port Ethernet adapter.
Columbia Data Products
®
Persistent Storage Manager (PSM)
Provides 250 persistent images of customer data and enables full online
backup of system with Microsoft’s backup applications.
Tivoli
®
Storage Manager Client
Provides data backup and archive support (in conjunction with Tivoli
Storage Manager Server).
2Model 326 User’s Reference

Roadmap for setting up and configuring the Model 326
A suggestion for first-time users...
Your understanding of the Model 326 and your ability to use it will be greatly
enhanced if you first proceed to the NAS Setup Navigator tutorial.
The NAS Setup Navigator is a distillation of the tasks you will need to
complete to set up and configure the Model 326 and get it up and running.
The Navigator not only presents information on functions and features -- such
as clustering -- but also allows you to enable the functions and features.
After you have become familiar with the Model 326, you can refer to this book
for more details.
The following roadmap presents the requirements and instructions for setting up
and configuring the Model 326. Following these directions and referring to the
appropriate sections of this book will help you in this task.
Prerequisites
vA domain controller must exist on the network and a login ID must be
defined for each node to log on. Each node must join the same domain.
vAll Windows shared disks must be defined as basic. Windows 2000
dynamic disks are not supported.
vA Quorum drive must be available to both nodes and have the same
drive letter on each node.
vAll disks shared between the two cluster nodes must have the same
drive letter.
vAll shared storage must be defined as NTFS and be on primary
partitions.
vCompression cannot be enabled on any disk partition.
vEach node must have one private and one public adapter.
Cluster setup requirements
See “Cluster setup requirements”on page 6.
Configuration and administration tools
The Model 326 is a network-attached storage appliance that has several
different methods of configuration depending on your environment.
First, determine how you will manage the device. You can manage the
Model 326 in “headless”mode or with a keyboard, display, and mouse
directly attached to each node. See “Using a keyboard, monitor, and mouse
for setup and configuration”on page 9 for information on managing this
device using a keyboard, display, and mouse. For “headless”management
of the Model 326, you can use one of the following tools:
vTerminal Services, for remote configuration and management from
another device on the network
vUniversal Manageability Services (UMS) for management through a Web
browser
vWindows 2000 for NAS, a Web-based GUI for those not familiar with the
Windows desktop
vIBM Advanced Appliance Configuration Utility (IAACU) for setup and
configuring multiple devices or other appliances on a single network
Chapter 1. Introduction 3

After you determine how you will manage the Model 326, you can begin
setup and configuration of the device.
For more information on configuration and administration tools, see
“Chapter 2. Configuration and administration tools”on page 9.
Step 1 - Initial network setup
Configure both nodes to enable access over the network. The general steps
to do this are given below. More details are given in “Chapter 3. Getting
started”on page 25.
1. Use Dynamic Host Configuration Protocol (DHCP) or static addressing
to set up one public network connection in each node.
a. If you are operating with a keyboard, display, and mouse, set up a
public network connection to access the device.
b. If you are operating in a headless environment, use one of the
following methods:
vIf DHCP is installed and the IP address requested can be
determined, you can use DHCP for initial setup, but you should
change this address to static later in the configuration.
vIf you have multiple appliances or cannot determine the DHCP
address, you can install the IAACU utility to identify appliances
and define IP addresses. The tool will also allow you to set static
addresses.
2. Complete the steps in “Setting the date and time”on page 27 and
“Setting up the network”on page 27.
Step 2 - Define shared storage and setup partitions
The Model 326 comes with preconfigured shared storage spanning nine
disks. The storage is formatted as an array, at RAID-level 5, consisting of
the following logical unit numbers (LUNs):
vA LUN of 500 MB, for the Quorum drive (drive letter G)
vA second LUN, composed of the remaining space and used as a shared
drive with one built-in hot spare
To use this default, preconfigured storage, validate all storage areas and
determine that the drive letters are the same on each node.
Otherwise, from one of the two nodes, define all storage arrays using
Storage Manager and then set up Windows partitions as defined in
“Chapter 4. Setting up storage”on page 29.
Attention: When you set up the shared storage, you must configure the
storage on one node only. During the setup of shared storage, leave the
joining node powered off.
Step 3 - Complete network setup and cluster installation
1. Power on either node. (This becomes the first node.)
2. Set up the first node:
a. Networking setup
See “Networking setup”on page 37. Note the cautionary statement
at the beginning of that section.
b. Domain setup
See “Joining a node to a domain”on page 40.
4Model 326 User’s Reference

3. Power off the first node.
4. Power on the other node (the joining node).
5. Set up the joining node:
a. Networking setup
See “Networking setup”on page 37.
b. Shared storage setup
For the joining node, the only part of this step that you must
complete is assigning drive letters on the shared storage; make sure
that the drive letters are the same as those on the first node.
Also, if you have trouble with the Fibre Channel connection, you can
use the steps in “Testing the Fibre Channel host adapter with FAStT
MSJ”on page 108 to diagnose the problem.
c. Domain setup
See “Joining a node to a domain”on page 40.
d. Power off the joining node.
6. Power on the first node and complete “Cluster setup”on page 40.
7. Power on the joining node and complete “Cluster setup”on page 40.
For more information on network setup and cluster installation, see
“Chapter 5. Completing networking, clustering, and storage access setup”
on page 37.
Step 4 - Cluster administration
At this point you can add users, file shares, and complete other
configuration tasks to improve operations of the Model 326 in a cluster
environment.
1. Add users (see “Creating users”on page 43).
2. Add file shares (see “Creating clustered file shares (CIFS and NFS)”on
page 47). Note that you must configure Server for NFS before NFS file
sharing can be used.
For more information on cluster administration, see “Configuring clusters”on
page 41.
Step 5 - Additional functions
Additional functions are available for backup, persistent images, and adding
more storage areas. It is recommended that after you complete the setup
and configuration procedures, you use the Persistent Storage Manager
Disaster Recovery option (“Disaster Recovery”on page 64) or other method
to back up the system configuration in the event of a failure.
Also, it is imperative to use the system shutdown procedure described
in “Powering off and powering on the Model 326”on page 49 to ensure
system integrity.
For more information, see “Chapter 6. Managing and protecting the network
and storage”on page 53.
Chapter 1. Introduction 5

Cluster setup requirements
Before you configure the Model 326 nodes for clustering, ensure that the following
requirements are met:
Network requirements
vA unique NetBIOS cluster name.
vYou will need at least seven static IP addresses: five for the node and
cluster setup, and two for each file share served by the cluster. A formula
for the number of static IP addresses is:5+(2xnumber_of_file shares).
The IP addresses required for node and cluster setup are:
–At least three unique, static IP addresses for the public network: one
for each node (for client access through the PCI NIC adapter) and
one for the cluster itself (the administration IP address).
Table 1 on page 7 shows a summary of the networking information
necessary for the public connection.
–Two static IP addresses for the cluster interconnect on a private
network or crossover, through the onboard Ethernet adapter. The
default IP addresses for the private network adapters are 10.1.1.1 for
the first node in the cluster, and 10.1.1.2 for the node that joins the
cluster. (The top node in the Model 326 is considered the first node,
and the bottom node is considered the joining node.)
Notes:
1. If you are not the system administrator, contact that person for the
applicable IP addresses.
2. Each node in a cluster must join the same domain and be able to
access a Primary Domain Controller (PDC) and DNS server, but it is not
required that the nodes log into the domain.
3. Each node in the cluster must have at least two network adapters: at
least one for the public network and the other for the private
interconnect.
Shared disk requirements
vAll shared disk arrays and devices, including the quorum disk, must be
physically attached to a shared storage bus.
vAll shared disks must be configured as basic (not dynamic) disks.
vAll shared disks must have the same drive letter on each node.
vAll partitions on these disks must be formatted with NTFS.
vAll partitions on these disks must also be Primary Partitions.
vCompression must not be enabled.
Powering off and powering on the Model 326
The clustering function requires special considerations when you need to
power off and power on the Model 326. See “Powering off and powering on
the Model 326”on page 49 for details.
6Model 326 User’s Reference

Table 1. Networking information worksheet for the public connection
Cluster component Information needed
Cluster Cluster name:
IP address:
Subnet mask:
First node Computer name (example: IBM5195–23H1234):
IP address:
Subnet mask:
Gateway:
Preferred DNS:
WINS server (optional):
Joining node Computer name:
IP address:
Subnet mask:
Gateway:
Preferred DNS:
WINS server (optional):
Domain to join Domain name:
Chapter 1. Introduction 7

8Model 326 User’s Reference