Before-image Buffers (-bibufs)

Use Before-image Buffers (-bibufs) to specify the number of before-image buffers. This parameter is useful only when running the Before-image Writer (BIW).

Note: Starting in Release 10.1C, the OpenEdge RDBMS expands the range of internal validations used to ensure database consistency in both index and data blocks during forward processing. Validations using PROUTIL can be run online as part of routine health checks. For more information, see OpenEdge Data Management: Database Administration.

Operating system and syntax	UNIX / Windows	-bibufs n
Use with	Maximum value	Minimum value	Single-user default	Multi-user default
Database Server	—	3	—	20

The number of before-image buffers.

The BIW continually writes the filled before-image buffers to disk, making the buffers available to other client and server processes. Without a BIW writing the buffers, any gain from increasing the number of buffers is negligible.