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    <p>Yeah, that's what we were surmising.  But paranoia and compliance
      being what it is we were curious what others were doing.</p>
    <p>-Paul Edmon-<br>
    </p>
    <div class="moz-cite-prefix">On 9/29/2021 10:32 AM, Renfro, Michael
      wrote:<br>
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        <p class="MsoNormal">I have to wonder if the intent of the DUA
          is to keep physical media from winding up in the wrong hands.
          If so, if the servers hosting the parallel filesystem (or a
          normal single file server) is physically secured in a data
          center, and the drives are destroyed on decommissioning, that
          might satisfy the requirements.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
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          <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
                style="font-size:12.0pt;color:black">From:
              </span></b><span style="font-size:12.0pt;color:black">Beowulf
              <a class="moz-txt-link-rfc2396E" href="mailto:beowulf-bounces@beowulf.org"><beowulf-bounces@beowulf.org></a> on behalf of Paul
              Edmon via Beowulf <a class="moz-txt-link-rfc2396E" href="mailto:beowulf@beowulf.org"><beowulf@beowulf.org></a><br>
              <b>Date: </b>Wednesday, September 29, 2021 at 9:15 AM<br>
              <b>To: </b>Scott Atchley
              <a class="moz-txt-link-rfc2396E" href="mailto:e.scott.atchley@gmail.com"><e.scott.atchley@gmail.com></a><br>
              <b>Cc: </b>Beowulf Mailing List
              <a class="moz-txt-link-rfc2396E" href="mailto:beowulf@beowulf.org"><beowulf@beowulf.org></a><br>
              <b>Subject: </b>Re: [Beowulf] Data Destruction<o:p></o:p></span></p>
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        <p style="margin:0in;text-align:center;background:white"
          align="center"><b><span
              style="font-size:12.0pt;color:red;background:white">External
              Email Warning</span></b><o:p></o:p></p>
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          <b><span style="font-size:12.0pt;color:red">This email
              originated from outside the university. Please use caution
              when opening attachments, clicking links, or responding to
              requests.</span></b><o:p></o:p></p>
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          <p>The former.  We are curious how to selectively delete data
            from a parallel filesystem.  For example we commonly use
            Lustre, ceph, and Isilon in our environment.  That said if
            other types allow for easier destruction of selective data
            we would be interested in hearing about it.<o:p></o:p></p>
          <p>-Paul Edmon-<o:p></o:p></p>
          <div>
            <p class="MsoNormal">On 9/29/2021 10:06 AM, Scott Atchley
              wrote:<o:p></o:p></p>
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              <p class="MsoNormal">Are you asking about selectively
                deleting data from a parallel file system (PFS) or
                destroying drives after removal from the system either
                due to failure or system decommissioning?
                <o:p></o:p></p>
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                <p class="MsoNormal"><o:p> </o:p></p>
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                <p class="MsoNormal">For the latter, DOE does not allow
                  us to send any non-volatile media offsite once it has
                  had user data on it. When we are done with drives, we
                  have a very big shredder.<o:p></o:p></p>
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            <p class="MsoNormal"><o:p> </o:p></p>
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                <p class="MsoNormal">On Wed, Sep 29, 2021 at 9:59 AM
                  Paul Edmon via Beowulf <<a
                    href="mailto:beowulf@beowulf.org"
                    moz-do-not-send="true">beowulf@beowulf.org</a>>
                  wrote:<o:p></o:p></p>
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                <p class="MsoNormal">Occassionally we get DUA (Data Use
                  Agreement) requests for sensitive
                  <br>
                  data that require data destruction (e.g. NIST 800-88).
                  We've been <br>
                  struggling with how to handle this in an era of
                  distributed filesystems <br>
                  and disks.  We were curious how other people handle
                  requests like this?  <br>
                  What types of filesystems to people generally use for
                  this and how do <br>
                  people ensure destruction?  Do these types of DUA's
                  preclude certain <br>
                  storage technologies from consideration or are there
                  creative ways to <br>
                  comply using more common scalable filesystems?<br>
                  <br>
                  Thanks in advance for the info.<br>
                  <br>
                  -Paul Edmon-<br>
                  <br>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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