User ManualTable of ContentsContents5Figures11Tables13Preface15The Team That Wrote This Redbook16Comments Welcome17Chapter 1. Certification Overview191.1 IBM Certified Specialist - AIX HACMP191.2 Certification Exam Objectives201.3 Certification Education Courses22Chapter 2. Cluster Planning252.1 Cluster Nodes252.1.1 CPU Options252.1.2 Cluster Node Considerations262.2 Cluster Networks292.2.1 TCP/IP Networks292.2.2 Non-TCPIP Networks322.3 Cluster Disks342.3.1 SSA Disks342.3.2 SCSI Disks442.4 Resource Planning462.4.1 Resource Group Options462.4.2 Shared LVM Components482.4.3 IP Address Takeover522.4.4 NFS Exports and NFS Mounts592.5 Application Planning592.5.1 Performance Requirements602.5.2 Application Startup and Shutdown Routines602.5.3 Licensing Methods612.5.4 Coexistence with other Applications612.5.5 Critical/Non-Critical Prioritizations612.6 Customization Planning622.6.1 Event Customization622.6.2 Error Notification632.7 User ID Planning662.7.1 Cluster User and Group IDs662.7.2 Cluster Passwords672.7.3 User Home Directory Planning67Chapter 3. Cluster Hardware and Software Preparation693.1 Cluster Node Setup693.1.1 Adapter Slot Placement693.1.2 Rootvg Mirroring693.1.3 AIX Prerequisite LPPs733.1.4 AIX Parameter Settings743.2 Network Connection and Testing783.2.1 TCP/IP Networks783.2.2 Non TCP/IP Networks813.3 Cluster Disk Setup843.3.1 SSA843.3.2 SCSI903.4 Shared LVM Component Configuration993.4.1 Creating Shared VGs1003.4.2 Creating Shared LVs and File Systems1023.4.3 Mirroring Strategies1043.4.4 Importing to Other Nodes1043.4.5 Quorum1063.4.6 Alternate Method - TaskGuide108Chapter 4. HACMP Installation and Cluster Definition1114.1 Installing HACMP1114.1.1 First Time Installs1114.1.2 Upgrading From a Previous Version1144.2 Defining Cluster Topology1184.2.1 Defining the Cluster1194.2.2 Defining Nodes1194.2.3 Defining Adapters1204.2.4 Configuring Network Modules1234.2.5 Synchronizing the Cluster Definition Across Nodes1244.3 Defining Resources1264.3.1 Configuring Resource Groups1264.4 Initial Testing1294.4.1 Clverify1294.4.2 Initial Startup1304.4.3 Takeover and Reintegration1304.5 Cluster Snapshot1314.5.1 Applying a Cluster Snapshot132Chapter 5. Cluster Customization1355.1 Event Customization1355.1.1 Predefined Cluster Events1355.1.2 Pre- and Post-Event Processing1405.1.3 Event Notification1405.1.4 Event Recovery and Retry1405.1.5 Notes on Customizing Event Processing1415.1.6 Event Emulator1415.2 Error Notification1415.3 Network Modules/Topology Services and Group Services1425.4 NFS considerations1435.4.1 Creating Shared Volume Groups1435.4.2 Exporting NFS File Systems1445.4.3 NFS Mounting1445.4.4 Cascading Takeover with Cross Mounted NFS File Systems1445.4.5 Cross Mounted NFS File Systems and the Network Lock Manager146Chapter 6. Cluster Testing1496.1 Node Verification1496.1.1 Device State1496.1.2 System Parameters1506.1.3 Process State1506.1.4 Network State1506.1.5 LVM State1516.1.6 Cluster State1516.2 Simulate Errors1526.2.1 Adapter Failure1526.2.2 Node Failure / Reintegration1556.2.3 Network Failure1566.2.4 Disk Failure1576.2.5 Application Failure159Chapter 7. Cluster Troubleshooting1617.1 Cluster Log Files1617.2 config_too_long1627.3 Deadman Switch1637.3.1 Tuning the System Using I/O Pacing1647.3.2 Extending the syncd Frequency1647.3.3 Increase Amount of Memory for Communications Subsystem1647.3.4 Changing the Failure Detection Rate1657.4 Node Isolation and Partitioned Clusters1657.5 The DGSP Message1667.6 User ID Problems1677.7 Troubleshooting Strategy167Chapter 8. Cluster Management and Administration1698.1 Monitoring the Cluster1698.1.1 The clstat Command1708.1.2 Monitoring Clusters using HAView1708.1.3 Cluster Log Files1718.2 Starting and Stopping HACMP on a Node or a Client1728.2.1 HACMP Daemons1738.2.2 Starting Cluster Services on a Node1748.2.3 Stopping Cluster Services on a Node1758.2.4 Starting and Stopping Cluster Services on Clients1778.3 Replacing Failed Components1788.3.1 Nodes1788.3.2 Adapters1788.3.3 Disks1798.4 Changing Shared LVM Components1818.4.1 Manual Update1818.4.2 Lazy Update1828.4.3 C-SPOC1838.4.4 TaskGuide1858.5 Changing Cluster Resources1858.5.1 Add/Change/Remove Cluster Resources1868.5.2 Synchronize Cluster Resources1868.5.3 DARE Resource Migration Utility1878.6 Applying Software Maintenance to an HACMP Cluster1928.7 Backup Strategies1948.7.1 Split-Mirror Backups1948.7.2 Using Events to Schedule a Backup1968.8 User Management1968.8.1 Listing Users On All Cluster Nodes1978.8.2 Adding User Accounts on all Cluster Nodes1978.8.3 Changing Attributes of Users in a Cluster1988.8.4 Removing Users from a Cluster1988.8.5 Managing Group Accounts1998.8.6 C-SPOC Log199Chapter 9. Special RS/6000 SP Topics2019.1 High Availability Control Workstation (HACWS)2019.1.1 Hardware Requirements2019.1.2 Software Requirements2029.1.3 Configuring the Backup CWS2029.1.4 Install High Availability Software2039.1.5 HACWS Configuration2039.1.6 Setup and Test HACWS2049.2 Kerberos Security2059.2.1 Configuring Kerberos Security with HACMP Version 4.32079.3 VSDs - RVSDs2089.3.1 Virtual Shared Disk (VSDs)2089.3.2 Recoverable Virtual Shared Disk2119.4 SP Switch as an HACMP Network2139.4.1 Switch Basics Within HACMP2139.4.2 Eprimary Management2149.4.3 Switch Failures214Chapter 10. HACMP Classic vs. HACMP/ES vs. HANFS21710.1 HACMP for AIX Classic21710.2 HACMP for AIX / Enhanced Scalability21710.2.1 IBM RISC System Cluster Technology (RSCT)21810.2.2 Enhanced Cluster Security21910.3 High Availability for Network File System for AIX21910.4 Similarities and Differences22010.5 Decision Criteria220Appendix A. Special Notices223Appendix B. Related Publications227B.1 International Technical Support Organization Publications227B.2 Redbooks on CD-ROMs227B.3 Other Publications228How to Get ITSO Redbooks229How IBM Employees Can Get ITSO Redbooks229How Customers Can Get ITSO Redbooks230IBM Redbook Order Form231List of Abbreviations233Index235ITSO Redbook Evaluation239Size: 1.61 MBPages: 240Language: EnglishOpen manual
