To check the amount of free memory on an AIX system, use the following command:
vmstat -p
This command will display a table of statistics about the system’s memory usage, including the amount of free memory.
Importance of checking free memory:
It is important to check the amount of free memory on a system regularly to ensure that there is enough memory to meet the demands of the applications that are running. If the system runs out of memory, it can cause applications to crash or the system to become unstable.