monitoring I/O with sar command
I need to check the I/O performance on a RH machine.
I tried issuing the command sar -b 1 1 but recieved alll zeros. I suspect that the I/o on this server is very high beacuse it is a mysql server with only one disk. it takes 15 minutes to show the records in th database....
(when I m using a user front end throw a browser),
How can I check it ?