GCS_SERVER_PROCESSES

Property	Description
Parameter type	Integer
Default value	For one CPU, there will be one GCS server process. For 2 - 8 CPUs, there will be 2 GCS server processes. For more than 8 CPUs, the number of GCS server processes will be equal to the number of CPUs divided by 4. If the result includes a fraction, the fraction is disregarded. For example, if you had 10 CPUs, then 10/4 would mean 2 GCS processes.
Modifiable	No
Range of values	1 to 36
Basic	No
Real Application Clusters	Multiple instances can have different values.

GCS_SERVER_PROCESSES specifies the number of server processes in Global Cache Service (GCS) to serve the inter-instance traffic among Real Application Clusters (RAC) instances. GCS server processes are only seen in a RAC environment.

Note:

1. This parameter was introduced in 10g.

2. Query for the current value of the parameter

select name, value, isdefault, isses_modifiable, issys_modifiable,

isinstance_modifiable, isdeprecated, description

from v$parameter

where upper(name) = ‘GCS_SERVER_PROCESSES’;

NAME	VALUE	IS DEFAULT	ISSES_ MODIFIABLE	ISSYS_ MODIFIABLE	ISINSTANCE_ MODIFIABLE	IS DEPRECATED	DESCRIPTION
gcs_server_processes	0	TRUE	FALSE	FALSE	FALSE	FALSE	number of background gcs server processes to start

Oracle initializatoin parameters