I think you have fencing-race problem, try to look man fence_drac6<br><br>try to delay fencing on a node when have problem with the cluster network<br><br>=======================================<br> --delay<br>              Wait X seconds before fencing is started (Default Value: 0)<br>
========================================<br><br>And i see you don't have a quorum disk, using qdisk for redhat it's always a good idea<br><div class="gmail_quote">2012/1/25 jayesh.shinde <span dir="ltr"><<a href="mailto:jayesh.shinde@netcore.co.in">jayesh.shinde@netcore.co.in</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>

  
    
  
  <div bgcolor="#ffffff" text="#000000">
    <font face="Times New Roman, Times, serif">Dear  Emmanuel Segura, <br>
      <br>
      Find the config below.  Because of policy I have removed some
      login details.<br>
      <br>
      #############<br>
      <br>
      <?xml version="1.0"?><br>
      <cluster config_version="6" name="new_cluster"><br>
              <fence_daemon post_fail_delay="0"
      post_join_delay="3"/><br>
              <clusternodes><br>
                      <clusternode name="mailbox1" nodeid="1"
      votes="1"><br>
                              <multicast addr="224.0.0.1"
      interface="bond0"/><br>
                              <fence><br>
                                      <method name="1"><br>
                                              <device
      name="imap1drac"/><br>
                                      </method><br>
                              </fence><br>
                      </clusternode><br>
                      <clusternode name="mailbox2" nodeid="2"
      votes="1"><br>
                              <multicast addr="224.0.0.1"
      interface="bond0"/><br>
                              <fence><br>
                                      <method name="1"><br>
                                              <device
      name="imap2drac"/><br>
                                      </method><br>
                              </fence><br>
                      </clusternode><br>
              </clusternodes><br>
         <cman expected_votes="1" two_node="1"><br>
                 <multicast addr="224.0.0.1"/><br>
         </cman><br>
              <fencedevices><br>
                      <fencedevice agent="fence_drac6"
      ipaddr="<drac IP>" login="<login name>"
      name="imap1drac" passwd="xxxxx"/><br>
                      <fencedevice agent="fence_drac6"
      ipaddr="<drac IP>" login="<login name>"
      name="imap2drac" passwd="xxxxx"/><br>
              </fencedevices><br>
              <rm><br>
                      <failoverdomains/><br>
                      <resources><br>
                              <ip address="192.168.1.1"
      monitor_link="1"/><br>
                              <fs device="/dev/drbd0" force_fsck="0"
      force_unmount="1" fsid="28418" fstype="ext3"
      mountpoint="/mount/path" name="imap1_fs" options="rw"
      self_fence="1"/><br>
                              <script file="/etc/init.d/cyrus-imapd"
      name="imap1_init"/><br>
                      </resources><br>
                      <service autostart="1" name="imap1"
      recovery="restart"><br>
                              <ip ref="192.168.1.1"/><br>
                              <fs ref="imap1_fs"/><br>
                              <script ref="imap1_init"/><br>
                      </service><br>
              </rm><br>
      </cluster><br>
      ###################<br>
      <br>
      Regards<br>
      Jayesh Shinde<br>
    </font><br>
    <br>
    On 01/25/2012 01:59 PM, emmanuel segura wrote:
    <blockquote type="cite">Can you show me your cluster config?<br>
      <br>
      <div class="gmail_quote">2012/1/25 jayesh.shinde <span dir="ltr"><<a href="mailto:jayesh.shinde@netcore.co.in" target="_blank">jayesh.shinde@netcore.co.in</a>></span><br>
        <blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div bgcolor="#ffffff" text="#000000"> <font face="Times New
              Roman, Times, serif">Hi  all , <br>
              <br>
              I have few queries about fence working. <br>
              <br>
              I am using 2 different  the 2 node cluster with Dell and
              IBM hardware in two different IDC.<br>
              Recently I came across the network failure problem at
              different time and I found my 2 nodes are power off state.<br>
              <br>
              Below is  how the situation happened with my 2 different 2
              node cluster. <br>
              <br>
              With 2 node </font><font face="Times New Roman, Times,
              serif"> IBM  </font><font face="Times New Roman, Times,
              serif">node cluster with SAN :--<br>
              ==============================<br>
              1)  Network connectivity  was failed totally for few
              minutes. <br>
              2) And as per the /var/log/messages both servers failed
              to  fence to each other and both server was UP as it is
              with all services. <br>
              3) But the "clustat" was showing serves are not in cluster
              mode and "regmanger" status was stop.<br>
              4) I simply reboot the server. <br>
              5) After that I found both server in power off stat. <br>
              <br>
              <br>
              with another  2 node Dell server with DRBD  :--<br>
              =================================<br>
              1) </font><font face="Times New Roman, Times, serif">Network

              connectivity  was failed totally. <br>
              2) DRAC ip was unavailable so fence failed from both
              server. <br>
              3) after some time I fond the servers are shutdown.<br>
            </font><font face="Times New Roman, Times, serif"><br>
              In normal conditions both cluster work properly <br>
              <br>
            </font><font face="Times New Roman, Times, serif"> my
              queries are now :--<br>
               ===============<br>
              1) What could be the reason for power off ? <br>
              2) Does cluster's fencing method  caused for the power
              off  of server ( i.e because of previous failed fence ) ?<br>
              3) Is there any test cases mentioned on net / blog / wiki 
              about the fence , i.e different situation under which 
              fence works.<br>
              <br>
              Please guide. <br>
              <br>
              Thanks & Regards<span><font color="#888888"><br>
                  Jayesh Shinde<br>
                  <br>
                </font></span></font><font face="Times New Roman, Times,
              serif"><br>
              <br>
            </font> </div>
          <br>
          --<br>
          Linux-cluster mailing list<br>
          <a href="mailto:Linux-cluster@redhat.com" target="_blank">Linux-cluster@redhat.com</a><br>
          <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a><br>
        </blockquote>
      </div>
      <br>
      <br clear="all"><span class="HOEnZb"><font color="#888888">
      <br>
      -- <br>
      esta es mi vida e me la vivo hasta que dios quiera<br>
      <pre><fieldset></fieldset>
--
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    </font></span></blockquote>
    <br>
  </div>

<br>--<br>
Linux-cluster mailing list<br>
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<a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a><br></blockquote></div><br><br clear="all"><br>-- <br>esta es mi vida e me la vivo hasta que dios quiera<br>