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    Sorry, wrong ML earlier<br>
    <br>
    <div class="moz-cite-prefix">On 01/23/2015 12:33 PM, Sahina Bose
      wrote:<br>
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      <div class="moz-cite-prefix">On 01/22/2015 08:03 PM, Demeter Tibor
        wrote:<br>
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      <blockquote
        cite="mid:1128794209.21055346.1421937186813.JavaMail.zimbra@itsmart.hu"
        type="cite">
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          serif; font-size: 12pt; color: #000000">
          <div><span style="font-size: 12pt;">Hello,</span></div>
          <div><br>
          </div>
          <div>I have an ovirt 3.5.0 cluster with three nodes and we
            using glusterfs for serving backend storage for VM-s.
            Glusterfs are on same servers with ovirt.</div>
          <div>We have Gluster 3.5.1 on all of nodes.</div>
          <div><br>
          </div>
          <div>How can I upgrade to ovirt 3.5.1 with new glusterfs? I
            don't want data inconsistency/data loss/split brains?</div>
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      <br>
      Do you have a replica 3 volume setup across these 3 nodes?<br>
      <br>
      Glusterfs supports rolling upgrade for replica volumes. <br>
      But there are some issues to upgrade from 3.5 to 3.6 versions
      (depending on version used)<br>
      Adding gluster-users &amp; Pranith for recommended procedures.<br>
      <br>
      <br>
      thanks<br>
      sahina<br>
      <br>
      <blockquote
        cite="mid:1128794209.21055346.1421937186813.JavaMail.zimbra@itsmart.hu"
        type="cite">
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          serif; font-size: 12pt; color: #000000">
          <div><br>
          </div>
          <div>Need I update gluster version to the latest?</div>
          <div>How I need to upgrade the nodes ?  Is there any
            whitepaper about this?</div>
          <div><span name="x"></span>
            <p style="font-family: 'Times New Roman'; font-size: medium;
              margin: 0px;" data-mce-style="font-family: 'Times New
              Roman'; font-size: medium; margin: 0px;"><strong><span
                  style="font-size: medium;" data-mce-style="font-size:
                  medium;"><span size="5" color="#2D67B0" style="color:
                    rgb(45, 103, 176);" data-mce-style="color: #2d67b0;"><br>
                  </span></span></strong></p>
            <p style="font-family: 'Times New Roman'; font-size: medium;
              margin: 0px;" data-mce-style="font-family: 'Times New
              Roman'; font-size: medium; margin: 0px;"><strong><span
                  style="font-size: medium;" data-mce-style="font-size:
                  medium;"><span size="5" color="#2D67B0" style="color:
                    rgb(45, 103, 176);" data-mce-style="color: #2d67b0;"><br>
                  </span></span></strong></p>
            <p style="font-family: 'Times New Roman'; font-size: medium;
              margin: 0px;" data-mce-style="font-family: 'Times New
              Roman'; font-size: medium; margin: 0px;">Thanks in
              advance,</p>
            <p style="font-family: 'Times New Roman'; font-size: medium;
              margin: 0px;" data-mce-style="font-family: 'Times New
              Roman'; font-size: medium; margin: 0px;"><br>
            </p>
            <p style="font-family: 'Times New Roman'; font-size: medium;
              margin: 0px;" data-mce-style="font-family: 'Times New
              Roman'; font-size: medium; margin: 0px;">Tibor</p>
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