Hey,<div><br></div><div>We made a highshot when we bought our machine for this purpose.</div><div>We bought following:</div><div>2x Intel Xeon E5-2620, 6-Core, 2GHz</div><div>4x Samsung 16GB DDR3L ECC REG 1600MHz</div><div>
8x INTEL SSD 520 120GB SATA 6Gb/s (RAID 6)</div><div><br></div><div>When we do a threading of 32 on our machine with about 300 machines the whole cronjob is done within 2 minutes.</div><div><br></div><div>/Peter</div><div>
<br><br><div class="gmail_quote">2013/8/9 Paul Gear <span dir="ltr">&lt;<a href="mailto:observium@gear.dyndns.org" target="_blank">observium@gear.dyndns.org</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  

    
  
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    Hi all,<br>
    <br>
    We&#39;ve got some money in the budget to upgrade our struggling
    monitoring server, and i&#39;m trying to optimise Observium.  Here are
    our Observium installation stats:<br>
    <br>
    <div>
      <div>
        <table>
          <thead> <tr>
              <th><br>
              </th>
              <th>Total</th>
              <th>Up</th>
              <th>Down</th>
              <th>Ignored</th>
              <th>Disabled</th>
            </tr>
          </thead><tbody>
            <tr>
              <td><strong><a href="http://observium.buq.org.au/devices/" target="_blank">Devices</a></strong></td>
              <td><a href="http://observium.buq.org.au/devices/" target="_blank">153</a></td>
              <td><a href="http://observium.buq.org.au/devices/status=1/" target="_blank">138
                  up</a></td>
              <td><a href="http://observium.buq.org.au/devices/status=0/" target="_blank">2
                  down</a></td>
              <td><a href="http://observium.buq.org.au/devices/ignore=1/" target="_blank">1
                  ignored</a> </td>
              <td><a href="http://observium.buq.org.au/devices/disabled=1/" target="_blank">12
                  disabled</a></td>
            </tr>
            <tr>
              <td><strong><a href="http://observium.buq.org.au/ports/" target="_blank">Ports</a></strong></td>
              <td><a href="http://observium.buq.org.au/ports/" target="_blank">8896</a></td>
              <td><a href="http://observium.buq.org.au/ports/state=up/" target="_blank">887
                  up </a></td>
              <td><a href="http://observium.buq.org.au/ports/state=down/" target="_blank">118
                  down </a></td>
              <td><a href="http://observium.buq.org.au/ports/ignore=1/" target="_blank">927
                  ignored </a></td>
              <td><a href="http://observium.buq.org.au/ports/state=admindown/" target="_blank">6837
                  shutdown</a></td>
            </tr>
          </tbody>
        </table>
      </div>
    </div>
    <br>
    We&#39;re currently running 4 cores, 12 GB RAM, 6 x 15K RPM 3.5&quot; drives
    in RAID 10.  We have about 20 GB of RRDs.  Poller-wrapper.py runs
    with 32 workers and regularly goes over the 500-second mark.  The
    web interface is quite sluggish despite php-xcache being installed.<br>
    <br>
    I&#39;m wondering if anyone has done testing as to which is the better
    approach for RRD storage performance: RAM disk or SSD.  RAM seems
    likely to offer better IOPS, but managing the RAM disk is obviously
    more overhead, and i&#39;m concerned that syncing the RAM disk elsewhere
    will have too much of a performance hit while it happens (especially
    during reboot cycles).  RAM is $25 per GB, whereas SSD is $3 per GB
    (or $25 per GB if you use &quot;write intensive&quot; SSDs - presumably these
    are rated for a larger number of lifetime writes?).<br>
    <br>
    My guess at a config for the new box: 12 cores, 64 GB RAM, 4 x 10K
    RPM 2.5&quot; drives in RAID 10 for OS, 2 x SSD for /opt/observium/rrd. 
    Any other recommendations about which hardware to put our money
    towards?  Do we need to consider other issues like which type of
    file system to use for /opt/observium/rrd?<br>
    <br>
    Thanks in advance,<br>
    Paul<br>
    <br>
  </div>

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