Operating system and syntax UNIX Windows 
-pwscan n
Use with Maximum value Minimum value Single-user default Multi-user default
DBS 99,999 1 — 5
n

Specifies the maximum number of buffers the APW scans during a buffer scan cycle. Scanning identifies dirty buffers that might need to be written. It does not guarantee that every scanned buffer is written.

For more information on how to customize APWs, see Use APWs to improve performance.