There were a couple other things that I looked at such as diskstat and some commands listed at tecmint.com concerning linux-performance-monitoring-with-vmstat-and-iostat-commands (I needed at least 10 rep points to post more than 2 links).
There were a couple other things that I looked at such as diskstat and some commands listed at tecmint.com concerning linux-performance-monitoring-with-vmstat-and-iostat-commands (I needed at least 10 rep points to post more than 2 links).