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     <h4 class="title">
      <a name="mysql-cluster-ndbinfo-disk-write-speed-aggregate-node">
      </a>
      25.6.17.30 The ndbinfo disk_write_speed_aggregate_node Table
     </h4>
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  <a class="indexterm" name="idm46045089469440">
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  <p>
   The
   <code class="literal">
    disk_write_speed_aggregate_node
   </code>
   table
        provides aggregated information per node about the speed of disk
        writes during LCP, backup, and restore operations.
  </p>
  <p>
   The
   <code class="literal">
    disk_write_speed_aggregate_node
   </code>
   table
        contains the following columns:
  </p>
  <div class="itemizedlist">
   <ul class="itemizedlist" style="list-style-type: disc; ">
    <li class="listitem">
     <p>
      <code class="literal">
       node_id
      </code>
     </p>
     <p>
      Node ID of this node
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       backup_lcp_speed_last_sec
      </code>
     </p>
     <p>
      Number of bytes written to disk by backup and LCP processes
            in the last second
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       redo_speed_last_sec
      </code>
     </p>
     <p>
      Number of bytes written to the redo log in the last second
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       backup_lcp_speed_last_10sec
      </code>
     </p>
     <p>
      Number of bytes written to disk by backup and LCP processes
            per second, averaged over the last 10 seconds
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       redo_speed_last_10sec
      </code>
     </p>
     <p>
      Number of bytes written to the redo log each second,
            averaged over the last 10 seconds
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       backup_lcp_speed_last_60sec
      </code>
     </p>
     <p>
      Number of bytes written to disk by backup and LCP processes
            per second, averaged over the last 60 seconds
     </p>
    </li>
    <li class="listitem">
     <p>
      <code class="literal">
       redo_speed_last_60sec
      </code>
     </p>
     <p>
      Number of bytes written to the redo log each second,
            averaged over the last 60 seconds
     </p>
    </li>
   </ul>
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