| Chapter 10 |
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10
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Maintaining an OpenVMS Cluster System
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10.1
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Backing Up Data and Files
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10.2
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Updating the OpenVMS Operating System
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10.2.1
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Rolling Upgrades
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10.3
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LAN Network Failure Analysis
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10.4
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Recording Configuration Data
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10.4.1
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Record Information
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10.4.2
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Satellite Network Data
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10.5
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Controlling OPCOM Messages
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10.5.1
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Overriding OPCOM Defaults
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10.5.2
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Example
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10.6
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Shutting Down a Cluster
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10.6.1
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The NONE Option
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10.6.2
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The REMOVE_NODE Option
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10.6.3
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The CLUSTER_SHUTDOWN Option
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10.6.4
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The REBOOT_CHECK Option
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10.6.5
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The SAVE_FEEDBACK Option
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10.6.6
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Shutting Down TCP/IP
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10.7
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Dump Files
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10.7.1
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Controlling Size and Creation
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10.7.2
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Sharing Dump Files
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10.8
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Maintaining the Integrity of OpenVMS Cluster Membership
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10.8.1
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Cluster Group Data
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10.8.2
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Example
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10.9
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Adjusting Packet Size for LAN or IP Configurations
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10.9.1
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System Parameter Settings for LANs and IPs
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10.9.2
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How to Use NISCS_MAX_PKTSZ
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10.9.3
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How to Use NISCS_UDP_PKTSZ
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10.9.4
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Editing Parameter Files
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10.10
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Determining Process Quotas
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10.10.1
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Quota Values
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10.10.2
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PQL Parameters
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10.10.3
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Examples
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10.11
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Restoring Cluster Quorum
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10.11.1
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Restoring Votes
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10.11.2
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Reducing Cluster Quorum Value
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10.12
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Cluster Performance
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10.12.1
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Using the SHOW Commands
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10.12.2
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Using the Monitor Utility
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10.12.3
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Using HP Availability Manager
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10.12.4
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Monitoring LAN Activity
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10.12.5
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LAN or PEDRIVER Fast Path Settings
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| Appendix A |
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Appendix A
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Cluster System Parameters
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A.1
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Values
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| Appendix B |
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Appendix B
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Building Common Files
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B.1
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Building a Common SYSUAF.DAT File
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B.2
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Merging RIGHTSLIST.DAT Files
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| Appendix C |
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Appendix C
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Cluster Troubleshooting
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C.1
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Diagnosing Computer Failures
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C.1.1
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Preliminary Checklist
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C.1.2
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Sequence of Booting Events
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C.2
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Satellite Fails to Boot
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C.2.1
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Displaying Connection Messages
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C.2.2
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General OpenVMS Cluster Satellite-Boot Troubleshooting
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C.2.3
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MOP Server Troubleshooting
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C.2.4
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Disk Server Troubleshooting
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C.2.5
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Satellite Booting Troubleshooting
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C.2.6
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Alpha Booting Messages (Alpha Only)
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C.3
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Computer Fails to Join the Cluster
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C.3.1
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Verifying OpenVMS Cluster Software Load
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C.3.2
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Verifying Boot Disk and Root
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C.3.3
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Verifying SCSNODE and SCSSYSTEMID Parameters
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C.3.4
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Verifying Cluster Security Information
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C.4
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Startup Procedures Fail to Complete
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C.5
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Diagnosing LAN Component Failures
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C.6
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Diagnosing Cluster Hangs
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C.6.1
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Cluster Quorum is Lost
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C.6.2
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Inaccessible Cluster Resource
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C.7
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Diagnosing CLUEXIT Bugchecks
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C.7.1
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Conditions Causing Bugchecks
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C.8
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Port Communications
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C.8.1
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LAN Communications
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C.8.2
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System Communications Services (SCS) Connections
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C.9
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Diagnosing Port Failures
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C.9.1
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Hierarchy of Communication Paths
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C.9.2
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Where Failures Occur
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C.9.3
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Verifying Virtual Circuits
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C.9.4
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Verifying LAN Connections
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C.10
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Analyzing Error-Log Entries for Port Devices
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C.10.1
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Examine the Error Log
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C.10.2
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Formats
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C.10.3
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LAN Device-Attention Entries
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C.10.4
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Logged Message Entries
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C.10.5
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Error-Log Entry Descriptions
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C.11
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OPA0 Error-Message Logging and Broadcasting
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C.11.1
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OPA0 Error Messages
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C.12
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Integrity server Satellite Booting Messages
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| Appendix D |
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Appendix D
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Sample Programs for LAN Control
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D.1
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Purpose of Programs
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D.2
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Starting the NISCA Protocol
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D.2.1
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Start the Protocol
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D.3
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Stopping the NISCA Protocol
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D.3.1
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Stop the Protocol
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D.3.2
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Verify Successful Execution
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D.4
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Analyzing Network Failures
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D.4.1
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Failure Analysis
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D.4.2
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How the LAVC$FAILURE_ANALYSIS Program Works
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D.5
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Using the Network Failure Analysis Program
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D.5.1
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Create a Network Diagram
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D.5.2
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Edit the Source File
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D.5.3
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Assemble and Link the Program
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D.5.4
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Modify Startup Files
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D.5.5
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Execute the Program
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D.5.6
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Modify MODPARAMS.DAT
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D.5.7
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Test the Program
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D.5.8
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Display Suspect Components
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