Yes, I do. I have a program called "Netpersec". It monitors incoming and outgoing traffic. When my problem happened, the outgoing traffic increases to 1.2Mbits/s ~ 2.Mbits/s from about 10KB....
I have run the sqldiag.exe. It shows the last three log files are unable to open. Meanwhile, What kind of command should I use to capture the command? Many thanks!