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Oracle® Database Reference
11g Release 1 (11.1)

Part Number B28320-01
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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.