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??
On Thu, Feb 22, 2018 at 12:16 AM, Serkan Çoban <cobanserkan@xxxxxxxxx> wrote:
"Did you check the BIOS/Power settings? They should be set for high performance.
Also you can try to boot "intel_idle.max_cstate=0" kernel command line
option to be sure CPUs not entering power saving states.
> ______________________________
On Thu, Feb 22, 2018 at 9:59 AM, Ryan Wilkinson <ryanwilk@xxxxxxxxx> wrote:
>
>
> I have a 3 host gluster replicated cluster that is providing storage for our
> RHEV environment. We've been having issues with inconsistent performance
> from the VMs depending on which Hypervisor they are running on. I've
> confirmed throughput to be ~9Gb/s to each of the storage hosts from the
> hypervisors. I'm getting ~300MB/s disk read spead when our test vm is on
> the slow Hypervisors and over 500 on the faster ones. The performance
> doesn't seem to be affected much by the cpu, memory that are in the
> hypervisors. I have tried a couple of really old boxes and got over 500
> MB/s. The common thread seems to be that the poorly perfoming hosts all
> have Dell's Idrac 7 Enterprise. I have one Hypervisor that has Idrac 7
> express and it performs well. We've compared system packages and versions
> til we're blue in the face and have been struggling with this for a couple
> months but that seems to be the only common denominator. I've tried on one
> of those Idrac 7 hosts to disable the nic, virtual drive, etc, etc. but no
> change in performance. In addition, I tried 5 new hosts and all are
> complying to the Idrac enterprise theory. Anyone else had this issue?!
>
>
>
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