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Dear all,<BR>
<BR>
Would you help to explain this ?<BR>
<BR>
regards,<BR>
Edward<BR> <BR>
<HR id=stopSpelling>
From: guohuai_li@hotmail.com<BR>To: drbd-user@lists.linbit.com; guohuai_li@hotmail.com; liulei@hisense.com; lichanglong@hisense.com; yao.xuefeng@gmail.com<BR>Subject: write block on primary when secondary diskless (DRBD8-3-0)<BR>Date: Fri, 13 Nov 2009 18:40:30 +0800<BR><BR>
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Hi, dear all,<BR> <BR>on drbd.conf, use protocol C.<BR> <BR>DRBD works well fistly. ( both primany node and seconday node works well.)<BR> <BR>But somehow, the seconday machine has disk problem and in the /var/log/messge of the primary node,<BR>has below info:<BR> <BR>+++++++++++++++++++++++++++++++++<BR>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: pdsk( UpToDate -> Diskless )</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Creating new current UUID</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Got NegAck packet. Peer is in troubles?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd1: pdsk( UpToDate -> Diskless )</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Got NegAck packet. Peer is in troubles?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Got NegAck packet. Peer is in troubles?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Got NegAck packet. Peer is in troubles?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd0: Got NegAck packet. Peer is in troubles? </SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Nov 13 00:12:30 cs-mdc-b kernel: drbd1: Creating new current UUID</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=1><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">+++++++++++++++++++++++++++++++++</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">then at this time, the write operation on primary node is blocked.</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">(the write operation is like this: call linux api "msync", using MS_SYNC mode.)</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Would you help to explain this ?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Is this a bug of DRBD ? or I configured wrongly ?</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Your help is highly appreciated. :-)</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Thanks for your reading.</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">best wishes,</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial">Edward</SPAN></FONT></P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=ecxMsoNormal><FONT face=Arial size=3><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: Arial"></SPAN></FONT> </P><BR>
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