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Startup Command and Parameter Reference
Startup Parameter Descriptions : After-image Buffers (-aibufs)

After-image Buffers (-aibufs)

Use After-image Buffers (-aibufs) to specify the number of after-image buffers.
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
-aibufs n
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
Database Server
The number of after-image buffers to use.
This parameter is useful only when running the after-image writer (AIW) because the AIW writes the filled After-image Buffers to disk, making the buffers available to other client and server processes. Progress Software Corporation recommends you set After-image Buffers (-aibufs) to the same value specified for the Before-image Buffers (-bibufs) parameter, or a minimum of 20.
Without the AIW writing the buffers, any gain from increasing the number of buffers is negligible.