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    <p>Paging Dr. Joe Landman, paging Dr. Landman...<br>
    </p>
    <pre class="moz-signature" cols="72">Prentice </pre>
    <div class="moz-cite-prefix">On 07/24/2018 10:19 PM, James Burton
      wrote:<br>
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    <blockquote type="cite"
cite="mid:CAAtNLqmwRmriTfv=UOn1YQReQRFiyZqkBS+ghSAt-viKREarGg@mail.gmail.com">
      <div dir="ltr"><span
style="font-size:small;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Does
          anyone have any experience with how BeeGFS compares to Lustre?
          We're looking at both of those for our next generation HPC
          storage system. <br>
          <br>
          Is CephFS a valid option for HPC now? Last time I played with
          CephFS it wasn't ready for prime time, but that was a few
          years ago.</span><br>
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      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Tue, Jul 24, 2018 at 10:58 AM, Joe
          Landman <span dir="ltr"><<a
              href="mailto:joe.landman@gmail.com" target="_blank"
              moz-do-not-send="true">joe.landman@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex"><span
              class=""><br>
              <br>
              On 07/24/2018 10:31 AM, John Hearns via Beowulf wrote:<br>
            </span><span class="">
              <blockquote class="gmail_quote" style="margin:0 0 0
                .8ex;border-left:1px #ccc solid;padding-left:1ex">
                Forgive me for saying this, but the philosophy for
                software defined storage such as CEPH and Gluster is
                that forklift style upgrades should not be necessary.<br>
                When a storage server is to be retired the data is
                copied onto the new server then the old one taken out of
                service. Well, copied is not the correct word, as there
                are erasure-coded copies of the data. Rebalanced is
                probaby a better word.<br>
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              <br>
            </span>
            This ^^<br>
            <br>
            I'd seen/helped build/benchmarked some very nice/fast CephFS
            based storage systems in $dayjob-1.  While it is a neat
            system, if you are focused on availability, scalability, and
            performance, its pretty hard to beat BeeGFS.  We'd
            ($dayjob-1) deployed several very large/fast file systems
            with it on our spinning rust, SSD, and NVMe units.<span
              class="HOEnZb"><font color="#888888"><br>
                <br>
                <br>
                -- <br>
                Joe Landman<br>
                e: <a href="mailto:joe.landman@gmail.com"
                  target="_blank" moz-do-not-send="true">joe.landman@gmail.com</a><br>
                t: @hpcjoe<br>
                w: <a href="https://scalability.org" rel="noreferrer"
                  target="_blank" moz-do-not-send="true">https://scalability.org</a><br>
                g: <a href="https://github.com/joelandman"
                  rel="noreferrer" target="_blank"
                  moz-do-not-send="true">https://github.com/joelandman</a><br>
                l: <a href="https://www.linkedin.com/in/joelandman"
                  rel="noreferrer" target="_blank"
                  moz-do-not-send="true">https://www.linkedin.com/in/jo<wbr>elandman</a></font></span>
            <div class="HOEnZb">
              <div class="h5"><br>
                <br>
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        <br>
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        <div><br>
        </div>
        -- <br>
        <div class="gmail_signature" data-smartmail="gmail_signature">
          <div dir="ltr">James Burton
            <div>OS and Storage Architect</div>
            <div>Advanced Computing Infrastructure</div>
            <div>Clemson University Computing and Information Technology</div>
            <div>340 Computer Court</div>
            <div>Anderson, SC 29625</div>
            <div>(864) 656-9047</div>
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