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    <div class="moz-cite-prefix">On 07/31/2013 04:39 PM, Kanagaraj
      wrote:<br>
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      <div class="moz-cite-prefix">Hi Yuko,<br>
        <br>
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        "Pre" refers to the point in time just before the corresponding
        volume command(aka volume event) has taken effect on a
        peer/host.<br>
        <br>
        "
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        Post" refers to the point in time just after the corresponding
        volume command(aka volume event) has taken effect on a
        peer/host.<br>
        <br>
        &nbsp;More information is available here
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href="http://www.gluster.org/community/documentation/index.php/Features/Hooks">http://www.gluster.org/community/documentation/index.php/Features/Hooks</a><br>
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        <br>
        Thanks,<br>
        Kanagaraj</div>
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    Hi Kanagaraj,<br>
    <br>
    Thank you very much for your explanation. <br>
    It makes sense clearly now.<br>
    <br>
    Kind regards,<br>
    <br>
    Yuko<br>
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