After-image Buffers (-aibufs)

Operating system and syntax UNIX / Windows 
-aibufs n
Use with Maximum value Minimum value Single-user default Multi-user default
DBS – 1 – 64
n
The number of after-image buffers.

Use After-image buffer (-aibufs) to specify the number of after-image buffers. This parameter is useful only when running the after-image writer (AIW) because the AIW writes the filled after-image buffers to disk, increasing the availability of empty buffers to client and server processes.

Without the AIW writing the buffers, any gain from increasing the number of buffers is negligible.

Note: Validations using -aibufs can be run online as part of routine health checks. For more information, see PROUTIL Utility.

To modify this parameter while the database is online, use PROUTIL INCREASETO.

You can use this parameter to support continuous operation of the database. For more information, see Change database parameters while the database is running.