AIX Hacmp | IBM SG24-5131-00 instruction

IBM Certification Study Guide

AIX HACMP

David Thiessen, Achim Rehor, Reinhard Zettler

International Technical Support Organization

http://www.redbooks.ibm.com

SG24-5131-00

Image 1

IBM SG24-5131-00 manual AIX Hacmp

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 IBM Certified Specialist AIX Hacmp Certification OverviewCertification Requirement two Tests Recommended Prerequisites Certification Exam Objectives PreinstallationHacmp Implementation System Management Certification Education Courses Following table outlines information about the next course IBM Certification Study Guide AIX Hacmp Cluster Nodes Cluster PlanningCPU Options Cluster Node Considerations Cluster Planning Switch adapter is onboard and does not need an extra slot 1 TCP/IP Networks Cluster NetworksSupported TCP/IP Network Types Special Network Considerations Slip Socc Cluster Planning Supported Non-TCP/IP Network Types Non-TCPIP Networks Serial RS232 Special Considerations SSA Disks Cluster DisksTarget-mode Scsi Target-mode SSA 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 Disks Scsi DisksSubsystems 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 Network Name NetworksNetwork Attribute Adapter Label Network AdaptersAdapter Function Cluster Planning Defining Hardware Addresses Application Planning NFS Exports and NFS Mounts Application Startup and Shutdown Routines Performance Requirements Coexistence with other Applications Licensing MethodsCritical/Non-Critical Prioritizations Event Customization Customization PlanningSpecial Application Requirements Event Notification Predictive Event Error Correction Error Notification Sample Screen for Add a Notification Method Application Failure Notification Cluster User and Group IDs User ID Planning Home Directories on Shared Volumes Cluster PasswordsUser Home Directory Planning NFS-Mounted Home Directories NFS-Mounted Home Directories on Shared Volumes Adapter Slot Placement Cluster Node SetupCluster Hardware and Software Preparation Rootvg Mirroring 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 1 SSA Cluster Disk SetupCabling 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 Scsi Adapters Connecting RAID SubsystemsRAID 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 Shared VGs Creating VGs for Concurrent AccessCreating 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 Mirroring Strategies Testing a File SystemImporting to Other Nodes Changing a Volume Group’s Startup Status Quorum at Vary On Quorum Quorum Disabled Quorum EnabledQuorum after Vary On Disabling and Enabling Quorum Quorum in Concurrent Access Configurations Quorum in Non-Concurrent Access ConfigurationsAlternate Method TaskGuide Forcing a Varyon Starting the TaskGuide IBM Certification Study Guide AIX Hacmp Installing Hacmp Hacmp Installation and Cluster DefinitionFirst Time Installs Cluster.base.server.utils Cluster.hc Rebooting Servers Install Server NodesUpgrading 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 Clverify Initial TestingSynchronizing 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 Acquiretakeoveraddr AcquireserviceaddrGetdiskvgfs Nodeupremote Sequence of nodedown Events ReleaseserviceaddrNodedownlocal Nodedownremote Network Events Networkdown StartserverNetworkup Networkupcomplete Reconfigtopologystart ConfigtoolongNetwork Adapter Events Swapadapter Configuration Resources Cluster Events Change/Show Cluster Event Recovery and RetryPre- and Post-Event Processing Event Notification Event Emulator Network Modules/Topology Services and Group Services NFS considerations Creating Shared Volume Groups NFS Mounting Exporting NFS File SystemsCascading Takeover with Cross Mounted NFS File Systems Creating NFS Mount Points on Clients NFS Cross Mounts Caveats about Node Names and NFS Cross Mounted NFS File Systems and the Network Lock Manager SLEEP=2 Done Node Verification Cluster TestingDevice State 131 Process State System ParametersNetwork State Cluster State LVM State Adapter Failure Simulate ErrorsEthernet 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 AIX Crash Node Failure / ReintegrationCPU 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 Log Files Cluster Troubleshooting143 Daemons Configtoolong Deadman Switch Extending the syncd Frequency Tuning the System Using I/O PacingIncrease 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 Monitoring the Cluster Cluster Management and Administration151 Monitoring Clusters using HAView Clstat Command 3.1 /var/adm/cluster.log System Error Log3.2 /tmp/hacmp.out 3.3 /usr/sbin/cluster/history/cluster.mmdd Starting and Stopping Hacmp on a Node or a Client Cluster Manager daemon clstrmgr Hacmp DaemonsCluster Smux Peer daemon clsmuxpd Cluster Lock Manager daemon cllockd Cluster Topology Services daemon topsvcsd Starting Cluster Services on a NodeCluster Group Services daemon grpsvcsd Cluster Information Program daemon clinfo Automatically Restarting Cluster Services Stopping Cluster Services on a Node Types of Cluster Stops When to Stop Cluster servicesGraceful Forced Maintaining Cluster Information Services on Clients Starting and Stopping Cluster Services on Clients Nodes Replacing Failed ComponentsAdapters 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 Changing Cluster Resources TaskGuideTaskGuide Requirements Synchronize Cluster Resources 1 Add/Change/Remove Cluster Resources Dare Resource Migration Utility Sticky Resource Migration Resource Migration TypesNon-Sticky Resource Migration Locations Default LocationNode 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 High Availability Control Workstation Hacws Special RS/6000 SP TopicsHardware Requirements 183 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 Hacmp for AIX Classic Hacmp Classic vs. HACMP/ES vs. HanfsHacmp for AIX / Enhanced Scalability 199 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 International Technical Support Organization Publications Appendix B. Related PublicationsRedbooks on CD-ROMs 209 Other Publications How IBM Employees Can Get Itso Redbooks How to Get Itso Redbooks211 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