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    <p>I would be really supprised if the problem was related to Idrac.</p>
    <p>The Idrac processor is a stand alone cpu with its own nic and
      runs independent of the main CPU.</p>
    <p>That being said it does have visibility into the whole system.</p>
    <p>try using dmidecode to compare the systems and take a close look
      at the raid controllers and what size and form of cache they have.<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 02/26/2018 11:34 AM, Ryan Wilkinson
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAOC1=1X94Y-xyoOLovza1fsGVRG5J0xqeVgYHcK7jrJp+JAuVw@mail.gmail.com">
      <div dir="ltr">I've tested about 12 different Dell servers.  Ony a
        couple of them have Idrac express and all the others have Idrac
        Enterprise.  All the boxes with Enterprise perform poorly and
        the couple that have express perform well.  I use the disks in
        raid mode on all of them.  I've tried a few non-Dell boxes and
        they all perform well even though some of them are very old. 
        I've also tried disabling Idrac, the Idrac nic, virtual storage
        for Idrac with no sucess..<br>
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        <div class="gmail_extra" style="display:block"><br>
          <div class="gmail_quote">On Mon, Feb 26, 2018 at 9:28 AM,
            Serkan Çoban <span dir="ltr">&lt;<a
                href="mailto:cobanserkan@gmail.com" target="_blank"
                moz-do-not-send="true">cobanserkan@gmail.com</a>&gt;</span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">I don't
              think it is related with iDRAC itself but some
              configuration<br>
              is wrong or there is some hw error.<br>
              Did you check battery of raid controller? Do you use disks
              in jbod<br>
              mode or raid mode?<br>
              <div class="HOEnZb">
                <div class="h5"><br>
                  On Mon, Feb 26, 2018 at 6:12 PM, Ryan Wilkinson &lt;<a
                    href="mailto:ryanwilk@gmail.com"
                    moz-do-not-send="true">ryanwilk@gmail.com</a>&gt;
                  wrote:<br>
                  &gt; Thanks for the suggestion.  I tried both of these
                  with no difference in<br>
                  &gt; performance.I have tried several other Dell hosts
                  with Idrac Enterprise and<br>
                  &gt; getting the same results.  I also tried a new
                  Dell T130 with Idrac express<br>
                  &gt; and was getting over 700 MB/s.  Any other users
                  had this issues with Idrac<br>
                  &gt; Enterprise??<br>
                  &gt;<br>
                  &gt;<br>
                  &gt; On Thu, Feb 22, 2018 at 12:16 AM, Serkan Çoban
                  &lt;<a href="mailto:cobanserkan@gmail.com"
                    moz-do-not-send="true">cobanserkan@gmail.com</a>&gt;<br>
                  &gt; wrote:<br>
                  &gt;&gt;<br>
                  &gt;&gt; "Did you check the BIOS/Power settings? They
                  should be set for high<br>
                  &gt;&gt; performance.<br>
                  &gt;&gt; Also you can try to boot
                  "intel_idle.max_cstate=0" kernel command line<br>
                  &gt;&gt; option to be sure CPUs not entering power
                  saving states.<br>
                  &gt;&gt;<br>
                  &gt;&gt; On Thu, Feb 22, 2018 at 9:59 AM, Ryan
                  Wilkinson &lt;<a href="mailto:ryanwilk@gmail.com"
                    moz-do-not-send="true">ryanwilk@gmail.com</a>&gt;<br>
                  &gt;&gt; wrote:<br>
                  &gt;&gt; &gt;<br>
                  &gt;&gt; &gt;<br>
                  &gt;&gt; &gt; I have a 3 host gluster replicated
                  cluster that is providing storage for<br>
                  &gt;&gt; &gt; our<br>
                  &gt;&gt; &gt; RHEV environment.  We've been having
                  issues with inconsistent<br>
                  &gt;&gt; &gt; performance<br>
                  &gt;&gt; &gt; from the VMs depending on which
                  Hypervisor they are running on.  I've<br>
                  &gt;&gt; &gt; confirmed throughput to be ~9Gb/s to
                  each of the storage hosts from the<br>
                  &gt;&gt; &gt; hypervisors.  I'm getting ~300MB/s disk
                  read spead when our test vm is<br>
                  &gt;&gt; &gt; on<br>
                  &gt;&gt; &gt; the slow Hypervisors and over 500 on the
                  faster ones.  The performance<br>
                  &gt;&gt; &gt; doesn't seem to be affected much by the
                  cpu, memory that are in the<br>
                  &gt;&gt; &gt; hypervisors.  I have tried a couple of
                  really old boxes and got over 500<br>
                  &gt;&gt; &gt; MB/s.  The common thread seems to be
                  that the poorly perfoming hosts all<br>
                  &gt;&gt; &gt; have Dell's Idrac 7 Enterprise.  I have
                  one Hypervisor that has Idrac 7<br>
                  &gt;&gt; &gt; express and it performs well.  We've
                  compared system packages and<br>
                  &gt;&gt; &gt; versions<br>
                  &gt;&gt; &gt; til we're blue in the face and have been
                  struggling with this for a<br>
                  &gt;&gt; &gt; couple<br>
                  &gt;&gt; &gt; months but that seems to be the only
                  common denominator.  I've tried on<br>
                  &gt;&gt; &gt; one<br>
                  &gt;&gt; &gt; of those Idrac 7 hosts to disable the
                  nic, virtual drive, etc, etc. but<br>
                  &gt;&gt; &gt; no<br>
                  &gt;&gt; &gt; change in performance.  In addition, I
                  tried 5 new hosts and all are<br>
                  &gt;&gt; &gt; complying to the Idrac enterprise
                  theory.  Anyone else had this issue?!<br>
                  &gt;&gt; &gt;<br>
                  &gt;&gt; &gt;<br>
                  &gt;&gt; &gt;<br>
                  &gt;&gt; &gt; ______________________________<wbr>_________________<br>
                  &gt;&gt; &gt; Gluster-users mailing list<br>
                  &gt;&gt; &gt; <a
                    href="mailto:Gluster-users@gluster.org"
                    moz-do-not-send="true">Gluster-users@gluster.org</a><br>
                  &gt;&gt; &gt; <a
                    href="http://lists.gluster.org/mailman/listinfo/gluster-users"
                    rel="noreferrer" target="_blank"
                    moz-do-not-send="true">http://lists.gluster.org/<wbr>mailman/listinfo/gluster-users</a><br>
                  &gt;<br>
                  &gt;<br>
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      <pre wrap="">_______________________________________________
Gluster-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a>
<a class="moz-txt-link-freetext" href="http://lists.gluster.org/mailman/listinfo/gluster-users">http://lists.gluster.org/mailman/listinfo/gluster-users</a></pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Alvin Starr                   ||   land:  (905)513-7688
Netvel Inc.                   ||   Cell:  (416)806-0133
<a class="moz-txt-link-abbreviated" href="mailto:alvin@netvel.net">alvin@netvel.net</a>              ||

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