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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The configurations SHOULD match to simplify maintenance, but server A will completely ignore server B settings, and server B will completely ignore server A settings. Your config is being read by the servers as:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>Host A: <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>resource r0 {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on ME {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>disk /dev/vg01/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.150:7788;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>}<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>and Host B is like this:<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>resource r0 {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on ME {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>disk /dev/vg02/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.151:7788;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>}<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Which is (I believe) what you wanted.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dan<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> drbd-user-bounces@lists.linbit.com [mailto:drbd-user-bounces@lists.linbit.com] <b>On Behalf Of </b>??<br><b>Sent:</b> Friday, May 18, 2012 3:20 AM<br><b>To:</b> drbd-user<br><b>Subject:</b> [DRBD-user] drbd wrong lower device doubt<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>Hi All, I have some doubts about drbd. I have configure two servers as Host A and Host B. Host A drbd configuration is like this: <o:p></o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>resource r0 {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on A {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>disk /dev/vg01/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.150:7788;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on B {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'> disk /dev/vg01/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.151:7788;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>}<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>and Host B is like this:<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>resource r0 {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on A {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>disk /dev/vg02/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.150:7788;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> on B {<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> device /dev/drbd0;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>disk /dev/vg02/share;</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> address 2.2.2.151:7788;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> meta-disk internal;<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'> }<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>}<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>You can notice that Host A and Host B configuration file is not same. Actually Host A lower device is </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'>/dev/vg01/share </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>and Host B lower device is </span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:red'> /dev/vg02/share</span><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'>. The specified destination lower device is wrong in each server. Network setting is right . I set Host A disk state to UpToDate and Host B disk state inconsistent. I find that Host A is syncing to Host B. Why it can work regularly when I configure wrong lower device.<o:p></o:p></span></p></div></div><div><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.5pt;font-family:"Arial","sans-serif";color:black'><o:p> </o:p></span></p></div></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'><o:p> </o:p></p></div></body></html>