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<DIV dir=ltr align=left><SPAN class=100124413-17022011><FONT color=#0000ff
size=2 face=Verdana>iotop does not work on my system. I think the kernel's too
old. But I've used a number of methods based on setting
/proc/sys/vm/block_dump=1 and looking for READ|WRITE|dirtied messages in the
dmesg ring buffer. It looks like kjournald is the biggest cause of disk IO by
far. </FONT></SPAN></DIV>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal align=left><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT
face=verdana>--<BR></FONT></SPAN><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT face=verdana>Eric
Robinson<BR></FONT></SPAN></P>
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<DIV><FONT color=#0000ff size=2 face=Verdana></FONT> </DIV><BR><BR><FONT color=silver><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana"><FONT size=1>Disclaimer - February 17, 2011</FONT></FONT></SPAN></FONT> <P></P><FONT size=1><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">This email and any files <FONT size=1>transmitted</FONT> with it are confidential and intended solely for <STRONG>drbd-user@lists.linbit.com</STRONG></SPAN></FONT><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">. If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of Physicians' Managed Care or Physician Select Management. Warning: Although Physicians' Managed Care or Physician Select Management has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachments.</SPAN></FONT></FONT></BODY></HTML>