HP Serviceguard A.11.20- Managing Serviceguard Twentieth Edition, August 2011

Disk I/O Information .........................................................................................................96
Hardware Configuration Worksheet ....................................................................................97
Power Supply Planning ...........................................................................................................97
Power Supply Configuration Worksheet ...............................................................................98
Cluster Lock Planning..............................................................................................................98
Cluster Lock Disk and Re-formation Time ...............................................................................99
Planning for Expansion.......................................................................................................99
Using a Quorum Server......................................................................................................99
Quorum Server Worksheet ............................................................................................99
LVM Planning ......................................................................................................................100
Using Generic Resources to Monitor Volume Groups.............................................................100
Using EMS to Monitor Volume Groups................................................................................101
LVM Worksheet ..............................................................................................................102
CVM and VxVM Planning ....................................................................................................102
CVM and VxVM Worksheet .............................................................................................103
Cluster Configuration Planning ..............................................................................................103
About Cluster-wide Device Special Files (cDSFs)...................................................................104
Points To Note............................................................................................................104
Where cDSFs Reside...................................................................................................104
Limitations of cDSFs................................................................................................105
LVM Commands and cDSFs.....................................................................................105
About Easy Deployment....................................................................................................105
Advantages of Easy Deployment...................................................................................106
Limitations of Easy Deployment......................................................................................106
Heartbeat Subnet and Cluster Re-formation Time .................................................................106
About Hostname Address Families: IPv4-Only, IPv6-Only, and Mixed Mode............................106
What Is IPv4–only Mode?............................................................................................107
What Is IPv6-Only Mode?............................................................................................107
Rules and Restrictions for IPv6-Only Mode.................................................................107
Recommendations for IPv6-Only Mode......................................................................108
What Is Mixed Mode?.................................................................................................108
Rules and Restrictions for Mixed Mode......................................................................109
Cluster Configuration Parameters .......................................................................................109
Cluster Configuration: Next Step........................................................................................125
Package Configuration Planning ............................................................................................125
Logical Volume and File System Planning ...........................................................................125
Planning Veritas Cluster Volume Manager (CVM) and Cluster File System (CFS)........................126
CVM 4.1 and later without CFS.....................................................................................126
CVM 4.1 and later with CFS ........................................................................................127
About the Volume Monitor................................................................................................128
Using the Volume Monitor............................................................................................128
Command Syntax...................................................................................................129
Examples..............................................................................................................130
Scope of Monitoring...............................................................................................130
Planning for NFS-mounted File Systems...............................................................................130
Planning for Expansion.....................................................................................................132
Choosing Switching and Failover Behavior..........................................................................132
Parameters for Configuring Generic Resources.....................................................................133
Configuring a Generic Resource........................................................................................133
Getting and Setting the Status/Value of a Simple/Extended Generic Resource....................135
Using Serviceguard Command to Get the Status/Value of a Simple/Extended Generic
Resource...............................................................................................................135
Using Serviceguard Command to Set the Status/Value of a Simple/Extended Generic
Resource...............................................................................................................135
Online Reconfiguration of Generic Resources..................................................................136
6 Contents