How to find the number of asynchronous i/o servers running in IBM AIX

To find the number of asynchronous i/o servers running in IBM AIX:

To determine you how many Posix AIO Servers (aios) are currently running, as root:

# pstat -a | grep -c posix_aioserver

To determine you how many Legacy AIO Servers (aios) are currently running, as root:

# pstat -a | grep -c aioserver

Example:

pstat -a | grep -c aioserver