HP UX Serviceguard Storage Management Software instruction

Veritas Storage Foundation™ 5.0

Cluster File System

Administration Guide Extracts

for the HP Serviceguard

Storage Management Suite

Second Edition

Manufacturing Part Number: T2771-90045

April 2008

Image 1

HP UX Serviceguard Storage Management Software manual Second Edition

Contents

Second Edition Legal Notices Contents Troubleshooting Cluster Volume Manager Administration Printing History Printing HistoryPage Technical Overview Cluster File System Design Overview of Cluster File System ArchitectureCluster File System Failover Group Lock Manager CFS Supported Features Supported FeaturesVxFS Functionality on Cluster File Systems CFS Unsupported Features Unsupported Features CFS Unsupported Features Benefits and Applications Advantages To Using CFS When To Use CFS Benefits and Applications Chapter Cluster File System Architecture Role of Component Products Veritas Cluster Volume Manager FunctionalityCluster Communication Membership Ports Cluster File System and The Group Lock Manager About CFSAsymmetric Mounts Primary and Secondary Mount Options Parallel I/O Cluster File System Backup Strategies Synchronizing Time on Cluster File Systems Error Handling PolicyDistributing Load on a Cluster File System Tuneables Example of a Four-Node Cluster About Veritas Cluster Volume Manager Functionality Private and Shared Disk Groups Activation Modes for Shared Disk Groups Activation Modes for Shared Disk Groups Allowed and conflicting activation modes Connectivity Policy of Shared Disk Groups Limitations of Shared Disk Groups About Veritas Cluster Volume Manager Functionality Chapter Cluster File System Administration Cluster File System Administration Cluster Messaging GAB Cluster Communication LLT Volume Manager Cluster Functionality Overview Cluster and Shared Mounts Cluster File System Overview Asymmetric Mounts Cluster File System Commands Cluster File System Administration Growing a Cluster File System Time Synchronization for Cluster File SystemsFstab file Distributing the Load on a Cluster Cluster File System Administration Snapshots for Cluster File Systems Cluster Snapshot CharacteristicsPerformance Considerations Creating a Snapshot on a Cluster File System # cfsumount /mnt1snap Cluster Volume Manager Overview of Cluster Volume Management Example of a 4-Node Cluster Disk group activation mode restrictions Either of the write modes on other nodes will fail # cfsdgadm display Behavior of Master Node for Different Failure Policies Disk Group Failure Policy Recovery in a CVM Environment Troubleshooting Inaccessible System Installation IssuesIncorrect Permissions for Root on Remote System Resource Temporarily Unavailable Installation Issues Unmount Failures Cluster File System ProblemsMount Failures Performance Issues Command FailuresHigh Availability Issues Cluster File System Problems Appendix a