Release 10.1A: OpenEdge Data Management:
Database Administration

Shared-memory Overflow Size (-Mxs)

Operating system and syntax	UNIX Windows	-Mxs n
Use with	Maximum value	Minimum value	Single-user default	Multi-user default
DBS	System dependent1	1	–	16384 + (# of users * 300) / 1024

1The maximum is limited only by the size of the signed integer data type on the system.

n

The size of the shared-memory overflow area in kilobytes.

Use Shared-memory Overflow (-Mxs) to replace the default value of the shared-memory overflow area; it does not increase it. The overflow area is appended to the shared-memory area. If the overflow area is too small, the database engine exits with the following message:

SYSTEM ERROR: Out of free shared memory. Use -Mxs to increase.

Depending on the operating system, the database engine rounds the shared-memory area size to the next 512-byte or 4K boundary.