This parameter controls the total memory that is used by
the cluster caching facility,
also known as CF.
- Configuration type
- Database Manager
- Applies to
- Applies to a DB2® pureScale® instance
only.
- Database server with local and remote clients
- Parameter type
- Configurable offline
- Default [range]
- AUTOMATIC [32768 - 4 294 967 295]
- Unit of measure
- Pages (4 KB)
- When allocated
- When the CF is
started
- When freed
- When the CF is
stopped
When the default setting AUTOMATIC is applied, the
amount of
cluster caching facility memory
is determined by querying
the total memory
that is available on the
CF server.
The parameter is then set to
either an appropriate percentage of the total memory on the CF server,
or the amount of free memory on the machine,
whichever value is less. An appropriate percentage is typically 70%
to 90% of the total memory available on the CF. Factors for consideration during AUTOMATIC computation
also include:- If the CF and
any DB2 members coexist
- If there are multiple instances on the same host
DB2 10.5 for Linux, UNIX, and Windows