Here is info. about the Raid controllers. Doesn't seem to be the culprit. Slow host: Name PERC H710 Mini (Embedded) Firmware Version 21.3.4-0001 Cache Memory Size 512 MB Fast Host:
Name PERC H310 Mini (Embedded) Firmware Version 20.12.1-0002 Cache Memory Size 0 MB Slow host: Name PERC H310 Mini (Embedded) Firmware Version 20.13.1-0002 Cache Memory Size 0 MB Slow host: Name PERC H310 Mini (Embedded) Firmware Version 20.13.3-0001 Cache Memory Size 0 MB Slow Host: Name PERC H710 Mini (Embedded) Firmware Version 21.3.5-0002 Cache Memory Size 512 MB Fast Host Perc H730 Cache Memory Size 1GB On Mon, Feb 26, 2018 at 9:42 AM, Alvin Starr <[email protected]> wrote: > I would be really supprised if the problem was related to Idrac. > > The Idrac processor is a stand alone cpu with its own nic and runs > independent of the main CPU. > > That being said it does have visibility into the whole system. > > 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. > > On 02/26/2018 11:34 AM, Ryan Wilkinson wrote: > > 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.. > > On Mon, Feb 26, 2018 at 9:28 AM, Serkan Çoban <[email protected]> > wrote: > >> I don't think it is related with iDRAC itself but some configuration >> is wrong or there is some hw error. >> Did you check battery of raid controller? Do you use disks in jbod >> mode or raid mode? >> >> On Mon, Feb 26, 2018 at 6:12 PM, Ryan Wilkinson <[email protected]> >> wrote: >> > 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 <[email protected]> >> > 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 <[email protected]> >> >> 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?! >> >> > >> >> > >> >> > >> >> > _______________________________________________ >> >> > Gluster-users mailing list >> >> > [email protected] >> >> > http://lists.gluster.org/mailman/listinfo/gluster-users >> > >> > >> > > > > _______________________________________________ > Gluster-users mailing > [email protected]http://lists.gluster.org/mailman/listinfo/gluster-users > > > -- > Alvin Starr || land: (905)513-7688 <(905)%20513-7688> > Netvel Inc. || Cell: (416)806-0133 > <(416)%20806-0133>[email protected] || > > > > _______________________________________________ > Gluster-users mailing list > [email protected] > http://lists.gluster.org/mailman/listinfo/gluster-users >
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