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Updated: 11 December 1998

OpenVMS Cluster Systems


Previous Contents Index

Chapter 10
10 Maintaining an OpenVMS Cluster System
     10.1     Backing Up Data and Files
     10.2     Updating the OpenVMS Operating System
         10.2.1         Rolling Upgrades
     10.3     LAN Network Failure Analysis
     10.4     Recording Configuration Data
         10.4.1         Record Information
         10.4.2         Satellite Network Data
     10.5     Cross-Architecture Satellite Booting
         10.5.1         Sample Configurations
         10.5.2         Usage Notes
         10.5.3         Configuring DECnet
     10.6     Controlling OPCOM Messages
         10.6.1         Overriding OPCOM Defaults
         10.6.2         Example
     10.7     Shutting Down a Cluster
         10.7.1         Removing a Computer
         10.7.2         Cluster Shutdown
         10.7.3         Rebooting
         10.7.4         Saving AUTOGEN Feedback
     10.8     Dump Files
         10.8.1         Controlling Size and Creation
         10.8.2         Sharing Dump Files
     10.9     Maintaining the Integrity of OpenVMS Cluster Membership
         10.9.1         Cluster Group Data
         10.9.2         Example
     10.10     Adjusting Maximum Packet Size for Ethernet and FDDI Configurations
         10.10.1         System Parameter Settings for Ethernet and FDDI
         10.10.2         Increasing Packet Size
         10.10.3         Reducing Packet Size
         10.10.4         Editing Parameter Files
     10.11     Determining Process Quotas
         10.11.1         Quota Values
         10.11.2         PQL Parameters
         10.11.3         Examples
     10.12     Restoring Cluster Quorum
         10.12.1         Restoring Votes
         10.12.2         Reducing Cluster Quorum Value
     10.13     Cluster Performance
         10.13.1         Using the SHOW Commands
         10.13.2         Using the Monitor Utility
         10.13.3         Using DECamds
         10.13.4         Monitoring LAN Activity
Appendix A
Appendix A Cluster System Parameters
     A.1     Values for Alpha and VAX Computers
Appendix B
Appendix B Building Common Files
     B.1     Building a Common SYSUAF.DAT File
     B.2     Merging RIGHTSLIST.DAT Files
Appendix C
Appendix C Cluster Troubleshooting
     C.1     Diagnosing Computer Failures
         C.1.1         Preliminary Checklist
         C.1.2         Sequence of Booting Events
     C.2     Computer on the CI Fails to Boot
     C.3     Satellite Fails to Boot
         C.3.1         Displaying Connection Messages
         C.3.2         General OpenVMS Cluster Satellite-Boot Troubleshooting
         C.3.3         MOP Server Troubleshooting
         C.3.4         Disk Server Troubleshooting
         C.3.5         Satellite Booting Troubleshooting
         C.3.6         Alpha Booting Messages (Alpha Only)
     C.4     Computer Fails to Join the Cluster
         C.4.1         Verifying OpenVMS Cluster Software Load
         C.4.2         Verifying Boot Disk and Root
         C.4.3         Verifying SCSNODE and SCSSYSTEMID Parameters
         C.4.4         Verifying Cluster Security Information
     C.5     Startup Procedures Fail to Complete
     C.6     Diagnosing LAN Component Failures
     C.7     Diagnosing Cluster Hangs
         C.7.1         Cluster Quorum is Lost
         C.7.2         Inaccessible Cluster Resource
     C.8     Diagnosing CLUEXIT Bugchecks
         C.8.1         Conditions Causing Bugchecks
     C.9     Diagnosing Port Communication Problems
         C.9.1         Port Polling
         C.9.2         LAN Communications
         C.9.3         System Communications Services (SCS) Connections
     C.10     Port Failures
         C.10.1         Hierarchy of Communication Paths
         C.10.2         Where Failures Occur
         C.10.3         Verifying CI Port Functions
         C.10.4         Verifying Virtual Circuits
         C.10.5         Verifying CI Cable Connections
         C.10.6         Diagnosing CI Cabling Problems
         C.10.7         Repairing CI Cables
         C.10.8         Verifying LAN Connections
     C.11     Analyzing Error-Log Entries for Port Devices
         C.11.1         Examine the Error Log
         C.11.2         Formats
         C.11.3         CI Device-Attention Entries
         C.11.4         Error Recovery
         C.11.5         LAN Device-Attention Entries
         C.11.6         Logged Message Entries
         C.11.7         Error-Log Entry Descriptions
     C.12     OPA0 Error-Message Logging and Broadcasting
         C.12.1         OPA0 Error Messages
         C.12.2         CI Port Recovery


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