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Troubleshooting
Specification
Install
Password
Error Notification
Index Symbols
Connecting Networks to a Hub
Hot-Standby Configuration
User ID Problems
Diagnostics
Page 3
Image 3
SG24-5131-00
International Technical Support Organization
IBM Certification Study Guide
AIX HACMP
May 1999
Page 2
Page 4
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Image 3
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Contents
AIX Hacmp
Page
AIX Hacmp
Take Note
Contents
Iv IBM Certification Study Guide AIX Hacmp
Page
Vi IBM Certification Study Guide AIX Hacmp
Vii
Appendix A. Special Notices
Viii IBM Certification Study Guide AIX Hacmp
Figures
IBM Certification Study Guide AIX Hacmp
Tables
Xii IBM Certification Study Guide AIX Hacmp
Xiii
Preface
Team That Wrote This Redbook
Your comments are important to us
Comments Welcome
Xvi IBM Certification Study Guide AIX Hacmp
Recommended Prerequisites
Certification Overview
IBM Certified Specialist AIX Hacmp
Certification Requirement two Tests
Preinstallation
Certification Exam Objectives
Hacmp Implementation
System Management
Certification Education Courses
Following table outlines information about the next course
IBM Certification Study Guide AIX Hacmp
Cluster Planning
Cluster Nodes
CPU Options
Cluster Node Considerations
Cluster Planning
Switch adapter is onboard and does not need an extra slot
Cluster Networks
1 TCP/IP Networks
Supported TCP/IP Network Types
Special Network Considerations
Slip Socc
Cluster Planning
Supported Non-TCP/IP Network Types
Non-TCPIP Networks
Serial RS232
Special Considerations
Target-mode SSA
Cluster Disks
SSA Disks
Target-mode Scsi
Host
Specification
1.2 Supported and Non-Supported Adapters
Disk Capacities
Rules for SSA Loops
Cluster Planning
RAID Level
RAID vs. Non-RAID RAID Technology
RAID Levels 2
RAID on the 7133 Disk Subsystem
Advantages
Scsi Disks
Disks
Subsystems
Advantages Disadvantages
Resource Group Options
Resource Planning
Cluster Planning
Shared LVM Components
Hot-Standby Configuration
Hot-Standby Configuration
Rotating Standby Configuration
Mutual Takeover Configuration
Mutual Takeover Configuration
Third-Party Takeover Configuration
Third-Party Takeover Configuration
IP Address Takeover
Concurrent Disk Access Configurations
Single Network
Network Topology
Point-to-Point Connection
Dual Network
Networks
Network Name
Network Attribute
Network Adapters
Adapter Label
Adapter Function
Cluster Planning
Defining Hardware Addresses
Application Planning
NFS Exports and NFS Mounts
Application Startup and Shutdown Routines
Performance Requirements
Licensing Methods
Coexistence with other Applications
Critical/Non-Critical Prioritizations
Event Notification
Customization Planning
Event Customization
Special Application Requirements
Predictive Event Error Correction
Error Notification
Sample Screen for Add a Notification Method
Application Failure
Notification
Cluster User and Group IDs
User ID Planning
NFS-Mounted Home Directories
Cluster Passwords
Home Directories on Shared Volumes
User Home Directory Planning
NFS-Mounted Home Directories on Shared Volumes
Rootvg Mirroring
Cluster Node Setup
Adapter Slot Placement
Cluster Hardware and Software Preparation
IBM Certification Study Guide AIX Hacmp
Procedure
This is so that the Quorum OFF functionality takes effect
Necessary Apar Fixes
AIX Prerequisite LPPs
4.1 I/O Pacing
AIX Parameter Settings
Checking Network Option Settings
Cron and NIS Considerations
Editing the /.rhosts File
Cabling Considerations
Network Connection and Testing
IP Addresses and Subnets
Connecting Networks to a Hub
Testing
Non TCP/IP Networks
Configuring Target Mode Scsi
Configuring RS232
Testing RS232 and Target Mode Networks
Configuring Target Mode SSA
Cluster Disk Setup
1 SSA
Cabling
Adapter Router
AIX Configuration
Disk Definitions
Adapter Definitions
#lsdev -Cc disk grep SSA
Diagnostics
Microcode Loading
Upgrade Instructions
Cluster Hardware and Software Preparation
Scsi
Configuring a RAID on SSA Disks
Connecting RAID Subsystems
Scsi Adapters
RAID Enclosures
110 RAIDiant Arrays Connected on Two Shared 8-Bit Scsi Buses
Cluster Hardware and Software Preparation
#2416
Adapter Scsi ID and Termination change
Termination
F1=Help F2=Refresh
# chdev -l scsi1 -a id=6 -P
Change/Show Characteristics of a Scsi Adapter
Shared LVM Component Configuration
Creating VGs for Concurrent Access
Creating Shared VGs
Creating Non-Concurrent VGs
Physical Volume Names
Creating Shared LVs and File Systems
Renaming a jfslog and Logical Volumes on the Source Node
Adding Copies to Logical Volume on the Source Node
Testing a File System
Mirroring Strategies
Importing to Other Nodes
Changing a Volume Group’s Startup Status
Quorum at Vary On
Quorum
Disabling and Enabling Quorum
Quorum Enabled
Quorum Disabled
Quorum after Vary On
Forcing a Varyon
Quorum in Non-Concurrent Access Configurations
Quorum in Concurrent Access Configurations
Alternate Method TaskGuide
Starting the TaskGuide
IBM Certification Study Guide AIX Hacmp
Hacmp Installation and Cluster Definition
Installing Hacmp
First Time Installs
Cluster.base.server.utils
Cluster.hc
Install Server Nodes
Rebooting Servers
Upgrading From a Previous Version
Upgrade AIX on One Node
Check Upgraded Configuration
Install Hacmp 4.3 for AIX on Node a
Client-only Migration
Defining Cluster Topology
Defining Nodes
Defining the Cluster
Defining Adapters
Hacmp Installation and Cluster Definition
Node Name
Adding or Changing Adapters after the Initial Configuration
Configuring Network Modules
Synchronizing the Cluster Definition Across Nodes
Ignore Cluster
Defining Resources
Configuring Resource Groups
Service IP Label
Configuring Resources for Resource Groups
Defining Application Servers
Configuring Run-Time Parameters
Initial Testing
Clverify
Synchronizing Cluster Resources
Takeover and Reintegration
Initial Startup
Cluster Snapshot
Applying a Cluster Snapshot
Hacmp Installation and Cluster Definition
IBM Certification Study Guide AIX Hacmp
Predefined Cluster Events
Cluster Customization
Nodeupremote
Acquireserviceaddr
Acquiretakeoveraddr
Getdiskvgfs
Nodedownremote
Releaseserviceaddr
Sequence of nodedown Events
Nodedownlocal
Networkupcomplete
Startserver
Network Events Networkdown
Networkup
Swapadapter
Configtoolong
Reconfigtopologystart
Network Adapter Events
Event Notification
Event Recovery and Retry
Configuration Resources Cluster Events Change/Show Cluster
Pre- and Post-Event Processing
Event Emulator
Network Modules/Topology Services and Group Services
NFS considerations
Creating Shared Volume Groups
Creating NFS Mount Points on Clients
Exporting NFS File Systems
NFS Mounting
Cascading Takeover with Cross Mounted NFS File Systems
NFS Cross Mounts
Caveats about Node Names and NFS
Cross Mounted NFS File Systems and the Network Lock Manager
SLEEP=2
Done
131
Cluster Testing
Node Verification
Device State
System Parameters
Process State
Network State
Cluster State
LVM State
Simulate Errors
Adapter Failure
Ethernet or Token Ring Interface Failure
Ethernet or Token Ring Adapter or Cable Failure
Switch Adapter Failure
Re-attach the cables
Failure of a 7133 Adapter
Node Failure / Reintegration
AIX Crash
CPU Failure
2.3 TCP/IP Subsystem Failure
Network Failure
Mirrored rootvg Disk hdisk0 Failure
Disk Failure
Mirrored 7133 Disk Failure
4.2 7135 Disk Failure
Application Failure
IBM Certification Study Guide AIX Hacmp
Cluster Troubleshooting
Cluster Log Files
143
Daemons
Configtoolong
Deadman Switch
Tuning the System Using I/O Pacing
Extending the syncd Frequency
Increase Amount of Memory for Communications Subsystem
Node Isolation and Partitioned Clusters
Changing the Failure Detection Rate
Dgsp Message
Troubleshooting Strategy
User ID Problems
IBM Certification Study Guide AIX Hacmp
Cluster Management and Administration
Monitoring the Cluster
151
Monitoring Clusters using HAView
Clstat Command
3.3 /usr/sbin/cluster/history/cluster.mmdd
System Error Log
3.1 /var/adm/cluster.log
3.2 /tmp/hacmp.out
Starting and Stopping Hacmp on a Node or a Client
Cluster Lock Manager daemon cllockd
Hacmp Daemons
Cluster Manager daemon clstrmgr
Cluster Smux Peer daemon clsmuxpd
Cluster Information Program daemon clinfo
Starting Cluster Services on a Node
Cluster Topology Services daemon topsvcsd
Cluster Group Services daemon grpsvcsd
Automatically Restarting Cluster Services
Stopping Cluster Services on a Node
Forced
When to Stop Cluster services
Types of Cluster Stops
Graceful
Maintaining Cluster Information Services on Clients
Starting and Stopping Cluster Services on Clients
Replacing Failed Components
Nodes
Adapters
Disks
3.1 SSA/SCSI Disk Replacement RAID
Sync the volume group smit clsyncvg
Changing Shared LVM Components
Manual Update
Lazy Update
Spoc
IBM Certification Study Guide AIX Hacmp
TaskGuide
Changing Cluster Resources
TaskGuide Requirements
Synchronize Cluster Resources
1 Add/Change/Remove Cluster Resources
Dare Resource Migration Utility
Resource Migration Types
Sticky Resource Migration
Non-Sticky Resource Migration
Default Location
Locations
Node Name
Stop Location
Using the cldare Command to Migrate Resources
Stopping Resource Groups
Using the clfindres Command
Applying Software Maintenance to an Hacmp Cluster
Fallover System a Rejoins Cluster
Split-Mirror Backups
Backup Strategies
How to do a split-mirror backup
User Management
Using Events to Schedule a Backup
Adding User Accounts on all Cluster Nodes
Listing Users On All Cluster Nodes
Removing Users from a Cluster
Changing Attributes of Users in a Cluster
Spoc Log
Managing Group Accounts
IBM Certification Study Guide AIX Hacmp
183
Special RS/6000 SP Topics
High Availability Control Workstation Hacws
Hardware Requirements
Software Requirements
Configuring the Backup CWS
Hacws Configuration
Install High Availability Software
Setup and Test Hacws
Kerberos Security
Ambrose Bierce, The Enlarged Devil’s Dictionary
Configuring Kerberos Security with Hacmp Version
Virtual Shared Disk VSDs
VSDs RVSDs
Special RS/6000 SP Topics
Undefined
D e Z
Recoverable Virtual Shared Disk
Rsvd Daemons
Switch Basics Within Hacmp
SP Switch as an Hacmp Network
Eprimary Management
Switch Failures
Special RS/6000 SP Topics
IBM Certification Study Guide AIX Hacmp
199
Hacmp Classic vs. HACMP/ES vs. Hanfs
Hacmp for AIX Classic
Hacmp for AIX / Enhanced Scalability
IBM Risc System Cluster Technology Rsct
High Availability for Network File System for AIX
Enhanced Cluster Security
Decision Criteria
Similarities and Differences
Hacmp Classic vs. HACMP/ES vs. Hanfs
IBM Certification Study Guide AIX Hacmp
205
Appendix A. Special Notices
SP1
Special Notices
IBM Certification Study Guide AIX Hacmp
209
Appendix B. Related Publications
International Technical Support Organization Publications
Redbooks on CD-ROMs
Other Publications
How to Get Itso Redbooks
How IBM Employees Can Get Itso Redbooks
211
Ibmmail
How Customers Can Get Itso Redbooks
213
IBM Redbook Order Form
IBM Certification Study Guide AIX Hacmp
215
List of Abbreviations
Netbios
217
Index Symbols
HACMP/ES
NIS
219
Vgda Vgsa
221
Itso Redbook Evaluation
IBM Certification Study Guide AIX Hacmp SG24-5131-00
