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Contents
High Availability Cluster Multi-Processing for AIX
High Availability and Hardware Availability
High Availability vs. Fault Tolerance
The Availability Costs and Benefits Continuum
Enhancing Availability with the AIX 5L Software
Journaled File System and Enhanced Journaled File System
Physical Components of an HACMP Cluster
Goal of HACMP: Eliminating Scheduled Downtime
Chapter 2: HACMP Cluster Nodes, Sites, Networks, and Heartbeating
Cluster Nodes and Cluster Sites
HACMP Communication Interfaces
Subnet Routing Requirements in HACMP
IP Address Takeover via IP Aliases
IP Address Takeover via IP Replacement
Heartbeating over Networks and Disks
Heartbeating in HACMP: Overview
Heartbeating over TCP/IP Networks
Heartbeating over Point-to-Point Networks
Chapter 3: HACMP Resources and Resource Groups
Cluster Resources: Identifying and Keeping Available
Startup, Fallover and Fallback
Resource Group Policies and Attributes
Resource Group Startup, Fallover and Fallback
Settling Time, Dynamic Node Priority and Fallback Timer
Cluster Networks and Resource Groups
Child and Parent Resource Groups Dependencies
Resource Group Location Dependencies
Chapter 4: HACMP Cluster Hardware and Software
Enhancing Availability with IBM Hardware
HACMP Required and Supported Hardware
Software Components of an HACMP Node
Complementary Cluster Software
Chapter 5: Ensuring Application Availability
Eliminating Single Points of Failure in an HACMP Cluster
Potential Single Points of Failure in an HACMP Cluster
Eliminating Nodes as a Single Point of Failure
Eliminating Applications as a Single Point of Failure
Eliminating Communication Interfaces as a Single Point of Failure
Eliminating Networks as a Single Point of Failure
Eliminating Disks and Disk Adapters as a Single Point of Failure
Minimizing Scheduled Downtime with HACMP
Starting Cluster Services without Stopping Applications
Dynamic Automatic Reconfiguration (DARE)
Cluster Single Point of Control (C-SPOC)
Automatic Verification and Synchronization
Minimizing Unscheduled Downtime
Recovering Resource Groups on Node Startup
Delayed Fallback Timer for Resource Groups
Minimizing Takeover Time: Fast Disk Takeover
Chapter 6: HACMP Cluster Configurations
Standby Configurations: Example 1
Standby Configurations: Example 2
Two-Node Mutual Takeover Configuration for Concurrent Access
Eight-Node Mutual Takeover Configuration for Concurrent Access
Cluster Configurations with Multi-Tiered Applications
Cluster Configurations with Resource Group Location Dependencies
Publishing Model with Same Node and Different Nodes Dependencies
Cross-Site LVM Mirror Configurations for Disaster Recovery
Cluster Configurations with Dynamic LPARs
DLPARs and Capacity Upgrade on Demand
Chapter 7: HACMP Configuration Process and Facilities
Information You Provide to HACMP
Information on Physical Configuration of a Cluster
AIX 5L Configuration Information
Establishing the Initial Communication Path
Information Discovered by HACMP
Cluster Configuration Options: Standard and Extended
Configuring an HACMP Cluster Using the Standard Configuration Path
Configuring an HACMP Cluster Using the Extended Configuration Path
Overview: HACMP Administrative Facilities
Installation, Configuration and Management Tools
Two-Node Cluster Configuration Assistant
Smart Assists for Integrating Specific Applications with HACMP
General Application Smart Assist
Starting, Stopping and Restarting Cluster Services
HACMP System Management with C-SPOC
Resource Group Management Utility
HACMP File Collection Management
Show Cluster Applications SMIT Option
Cluster Status Utility (clstat)
HAView Cluster Monitoring Utility
Cluster Monitoring and Administration with Tivoli Framework
Application Availability Analysis Tool
HACMP Verification and Synchronization
Resetting HACMP Tunable Values
Cluster Status Information File
Emulation of Error Log Driven Events
Chapter 8: HACMP 5.4: Summary of Changes
New Features That Enhance Ease of Use
New Features That Enhance Geographic Distance Capability
Features Discontinued in HACMP 5.2 and Up
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