Managing Serviceguard Eighteenth Edition, September 2010

Table of Contents
Printing History ...........................................................................................................................25
Preface.......................................................................................................................................27
1 Serviceguard at a Glance.........................................................................................................29
What is Serviceguard? .......................................................................................................29
Failover..........................................................................................................................31
About Veritas CFS and CVM from Symantec...............................................................32
Using Serviceguard Manager.............................................................................................32
Monitoring Clusters with Serviceguard Manager........................................................33
Administering Clusters with Serviceguard Manager...................................................33
Configuring Clusters with Serviceguard Manager.......................................................33
Starting Serviceguard Manager.....................................................................................33
Using SAM..........................................................................................................................33
What are the Distributed Systems Administration Utilities?.............................................34
A Roadmap for Configuring Clusters and Packages ........................................................34
2 Understanding Serviceguard Hardware Configurations................................................................37
Redundancy of Cluster Components.................................................................................37
Redundant Network Components ....................................................................................38
Rules and Restrictions...................................................................................................39
Redundant Ethernet Configuration .............................................................................40
Cross-Subnet Configurations........................................................................................41
Configuration Tasks.................................................................................................41
Restrictions...............................................................................................................42
For More Information..............................................................................................43
Replacing Failed Network Cards..................................................................................43
Redundant Disk Storage.....................................................................................................44
Supported Disk Interfaces ............................................................................................44
Data Protection .............................................................................................................44
Disk Mirroring ........................................................................................................45
Disk Arrays using RAID Levels and Multiple Data Paths .....................................45
About Multipathing............................................................................................45
Monitoring LVM Disks Through Event Monitoring Service........................................46
Monitoring VxVM and CVM Disks..............................................................................46
Replacing Failed Disk Mechanisms .............................................................................46
Replacing Failed I/O Cards...........................................................................................47
Sample SCSI Disk Configurations ................................................................................47
Sample Fibre Channel Disk Configuration ..................................................................48
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