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Sun Cluster Concepts Guide for Solaris OS

Control of CPU

Each application and service that is running on a cluster has specific CPU needs. Table 3–4 lists the CPU control activities that are available on different versions of the Solaris OS.

Table 3–4 CPU Control

Solaris Version 

Zone 

Control 

Solaris 9 OS 

Not available 

Assign CPU shares 

Solaris 10 OS 

Global-cluster voting node 

Assign CPU shares 

Solaris 10 OS 

Global-cluster non-voting node 

Assign CPU shares 

Assign number of CPU 

Create dedicated processor sets 

Note –

If you want to apply CPU shares, you must specify the Fair Share Scheduler (FFS) as the default scheduler in the cluster.

Controlling the CPU that is assigned to a resource group in a dedicated processor set in a global-cluster non-voting node offers the strictest level of control. If you reserve CPU for a resource group, this CPU is not available to other resource groups.