Default scheduling classes and priorities

The following table lists the default class and priority values used by VCS. The class and priority of trigger processes are determined by the attributes ProcessClass (default = TS) and ProcessPriority (default = ""). Both attributes can be modified according to the class and priority at which the trigger processes run.

Default scheduling classes and priorities

Process

Default Scheduling Class

Default Priority (AIX)

Default Priority (HP-UX)

Default Priority (Linux)

Default Priority (Solaris)

Engine 

RT 

52
(Strongest + 2) 

2
(Strongest + 2) 

Min: 0 

Max: 99 

57
(Strongest - 2) 

Process created by engine 

TS 

N/A 

60 (Strongest) 

Agent 

TS 

N/A 

Script 

TS 

N/A 

Note   For standard configurations, Symantec recommends using the default values for scheduling unless specific configuration requirements dictate otherwise.

Note that the default priority value is platform-specific. When priority is set to "" (empty string), VCS converts the priority to a value specific to the platform on which the system is running. For TS, the default priority equals the strongest priority supported by the TimeSharing class. For RT, the default priority equals two less than the strongest priority supported by the RealTime class. So, if the strongest priority supported by the RealTime class is 59, the default priority for the RT class is 57. For SHR (on Solaris only), the default priority is the strongest priority support by the SHR class.