You can define alternate buffer pools to be assigned to specific DBIDs or areas.
Alternate buffer pools are defined with the MUF startup option BUFFER_POOL_DEF.
See member DBDATIN2 which has some sample statements commented out:
*BUFFER_POOL_DEF IXX01,4,15 POOL-NAME,BUFFER-SIZE,BUFFER-COUNT
*BUFFER_POOL_DEF DXX01,4,15 POOL-NAME,BUFFER-SIZE,BUFFER-COUNT
*BUFFER_POOL_DEF DATA1,4,15 POOL-NAME,BUFFER-SIZE,BUFFER-COUNT
You then assign an area or DBID to the pool with the BUFFER_POOL_CONTENT startup option, for example:
You can also use the console commands BUFFER_POOL_CONTENT and BUFFER_POOL_COUNT to make changes to the buffer configuration.