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<DIV><SPAN class=044513606-17022011><FONT size=2 face=Verdana>While performing a
resync, iostat shows that nodeA (primary) is doing almost all reads while nodeB
(secondary) is doing almost all writes, which is expected. However, I'm trying
to see the names of the processes that are doing the reading and writing. I
tried enabling /proc/sys/vm/block_dump and checking dmesg, but most of what I
see in there is kjournald. Do DRBD processes not show up in kernel debug output?
If not, how do I isolate the source of constant 25-50% iowait on a computer
running DRBD?</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> </DIV><BR><BR><FONT color=silver><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana"><FONT size=1>Disclaimer - February 16, 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>