This feature is available only on Linux pSeries.
Adaptive Server version 12.5.4 ESD #4 includes APIs that allow you to batch data page writes. This results in reduced context switching between user and kernel space, and an increase in performance when you run I/O-intensive workloads.
To enable batch IO, start Adaptive Server with the 1649 traceflag, which writes this message to the error log:
Enabling batch I/O using Linux Native Kernel asynchronous disk I/O strategy
To disable this feature, start Adaptive Server with traceflag 1654.
