SysUsage v3.2 on www

Daily Graph 1 Minute Average

Weekly Graph 30 Minute Average

Monthly Graph 2 Hour Average

Yearly Graph 1 Day Average

Command: sar -p -d

              await
                     The average  time  (in  milliseconds)  for  I/O  requests
                     issued to the device to be served. This includes the time
                     spent by the requests in queue and the time spent servic-
                     ing them.

              svctm
                     The  average  service  time  (in  milliseconds)  for  I/O
                     requests that were issued to the device.