Release 10.1A: OpenEdge Data Management:
Database Administration

Controlling memory use

Table 13–1 lists the startup parameters used to fine-tune memory allocation on the server system.

Table 13–1: Startup parameters that affect memory allocation 

Startup parameter	Suggested use
Blocks in Database Buffers (-B)	Increasing the buffer size decreases the amount of database record I/O by increasing the number of buffers available in memory. This increases memory usage. Increase the -B parameter to use more memory to reduce I/O. Decrease the -B parameter if memory is limited or if database buffer I/O causes paging.
Maximum Clients per Server (-Ma)1	If some number of remote clients overloads the server or exhausts the file descriptors on a system, set this parameter to limit the number of clients.
Maximum Servers (-Mn)1	If a server becomes overloaded with clients, set this parameter to limit the number of servers. If you significantly increase this parameter, you should also increase the Minimum Clients per Server (-Mi) parameter.
Number of Users (-n)	Set this parameter large enough to include both local and remote users.
Pin Shared Memory (-pinshm)	Use this parameter to prevent the database engine from swapping shared memory contents to disk.

1Relevant only to database accessed using client/server.