Enabling Asynchronous I/O for File Systems

Enable asynchronous I/O for file systems on HP-UX.


SAP recommends that you enable VxFS Concurrent I/O (CIO) on HP-UX file systems to take advantage of its performance benefits. VxFS Concurrent I/O is available with OnlineJFS (VxFS-Full) version 5.0.1 and later for HP-UX 11.31.

To verify that OnlineJFS is installed and enabled, enter:
# vxlicrep | grep -i onlinejfs 
#  swlist -l product |grep -i onlinejfs

See your operating system documentation.