<div dir="ltr">Thanks for the suggestion. I tried both of these with no difference in performance.I have tried several other Dell hosts with Idrac Enterprise and getting the same results. I also tried a new Dell T130 with Idrac express and was getting over 700 MB/s. Any other users had this issues with Idrac Enterprise??<br><div><input name="virtru-metadata" value="{"email-policy":{"state":"closed","expirationUnit":"days","disableCopyPaste":false,"disablePrint":false,"disableForwarding":false,"expires":false,"isManaged":false},"attachments":{},"compose-window":{"secure":false}}" type="hidden"></div><div class="gmail_extra" style="display:block"><br><div class="gmail_quote">On Thu, Feb 22, 2018 at 12:16 AM, Serkan Çoban <span dir="ltr"><<a href="mailto:cobanserkan@gmail.com" target="_blank">cobanserkan@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">"Did you check the BIOS/Power settings? They should be set for high performance.<br>
Also you can try to boot "intel_idle.max_cstate=0" kernel command line<br>
option to be sure CPUs not entering power saving states.<br>
<div><div class="h5"><br>
On Thu, Feb 22, 2018 at 9:59 AM, Ryan Wilkinson <<a href="mailto:ryanwilk@gmail.com">ryanwilk@gmail.com</a>> wrote:<br>
><br>
><br>
> I have a 3 host gluster replicated cluster that is providing storage for our<br>
> RHEV environment. We've been having issues with inconsistent performance<br>
> from the VMs depending on which Hypervisor they are running on. I've<br>
> confirmed throughput to be ~9Gb/s to each of the storage hosts from the<br>
> hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on<br>
> the slow Hypervisors and over 500 on the faster ones. The performance<br>
> doesn't seem to be affected much by the cpu, memory that are in the<br>
> hypervisors. I have tried a couple of really old boxes and got over 500<br>
> MB/s. The common thread seems to be that the poorly perfoming hosts all<br>
> have Dell's Idrac 7 Enterprise. I have one Hypervisor that has Idrac 7<br>
> express and it performs well. We've compared system packages and versions<br>
> til we're blue in the face and have been struggling with this for a couple<br>
> months but that seems to be the only common denominator. I've tried on one<br>
> of those Idrac 7 hosts to disable the nic, virtual drive, etc, etc. but no<br>
> change in performance. In addition, I tried 5 new hosts and all are<br>
> complying to the Idrac enterprise theory. Anyone else had this issue?!<br>
><br>
><br>
><br>
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</blockquote></div><br></div></div>