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Database Administration
Reference : Database Startup Parameters : Alphabetical listing of database startup parameters : Before-image Buffers (-bibufs)
Before-image Buffers (-bibufs)
Operating system and syntax
UNIX / Windows
-bibufs n
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
The number of before-image buffers.
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). 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.
Note: Validations using -bibufs can be run online as part of routine health checks. For more information, see PROUTIL Utility.