Managing Serviceguard Eighteenth Edition, September 2010

LVM Planning ..................................................................................................................132
Using EMS to Monitor Volume Groups......................................................................132
LVM Worksheet ..........................................................................................................133
CVM and VxVM Planning ...............................................................................................134
CVM and VxVM Worksheet .......................................................................................134
Cluster Configuration Planning .......................................................................................135
About Cluster-wide Device Special Files (cDSFs).......................................................135
Points To Note........................................................................................................136
Where cDSFs Reside...............................................................................................136
Limitations of cDSFs.........................................................................................137
LVM Commands and cDSFs.............................................................................137
About Easy Deployment.............................................................................................137
Advantages of Easy Deployment...........................................................................138
Limitations of Easy Deployment............................................................................138
Heartbeat Subnet and Cluster Re-formation Time .....................................................138
About Hostname Address Families: IPv4-Only, IPv6-Only, and Mixed Mode..........139
What Is IPv4–only Mode?......................................................................................139
What Is IPv6-Only Mode?......................................................................................140
Rules and Restrictions for IPv6-Only Mode.....................................................140
Recommendations for IPv6-Only Mode...........................................................142
What Is Mixed Mode?............................................................................................142
Rules and Restrictions for Mixed Mode...........................................................142
Cluster Configuration Parameters ..............................................................................143
Cluster Configuration: Next Step................................................................................167
Package Configuration Planning .....................................................................................168
Logical Volume and File System Planning .................................................................168
Planning Veritas Cluster Volume Manager (CVM) and Cluster File System (CFS)....170
CVM 4.1 and later without CFS..............................................................................170
CVM 4.1 and later with CFS ..................................................................................170
About the Volume Monitor.........................................................................................172
Using the Volume Monitor.....................................................................................172
Command Syntax.............................................................................................173
Examples...........................................................................................................174
Scope of Monitoring..........................................................................................174
Planning for NFS-mounted File Systems....................................................................174
Planning for Expansion...............................................................................................176
Choosing Switching and Failover Behavior................................................................176
Parameters for Configuring EMS Resources...............................................................178
About Package Dependencies.....................................................................................179
Simple Dependencies.............................................................................................179
Rules for Simple Dependencies........................................................................180
Guidelines for Simple Dependencies................................................................183
Extended Dependencies.........................................................................................184
Rules for Exclusionary Dependencies..............................................................185
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