Linux display disk total statistics including time spent reading and writing data

Posted on in Categories File system, Hardware, Linux, Monitoring last updated January 3, 2008

Most Linux admins are not aware of hidden switch (undocumented switch) called -D. The -D option display a nice summery of disk I/O subsystem since boot time. Output includes total time spent reading and writing data, merged reads and merged writes (kernel disk i/o optimization technique) and other parameters.
Continue reading “Linux display disk total statistics including time spent reading and writing data”