What version of vSphere? There are some known issues with the vmxnet3 adapter
On May 31, 2017 4:51 PM, "Kurt Buff" <[email protected]> wrote: > Update - still not solved: > > Got on a call with a MSFT rep. He ran a quick shell script that did > the things I've already done: > > netsh interface tcp set global chimney=disabled > netsh interface tcp set global rss=disabled > netsh int tcp set global autotuning=disabled > netsh int tcp set global congestion=none > netsh int tcp set global netdma=Disabled > > I've put him off for now, as I'm seeing what might be a related > problem crop up - the ancient CRM we're using has been spouting errors > all day about not being able to write to the database. > > I've looked at CPU ready on both machines, and the file server's is > pretty bad, but the other server's isn't. That's after migrating them > to a single host together, and migrating everything else off that host > - just those two VMs on this host. I've also looked at performance > charts in vmware for both machines regarding disk and network, and am > not seeing anything out of line. > > I'm trying to install the vmware support assistant appliance, but am > running into problems with SSO auth - the vsphere infrastructure was > upgraded from 5.5 to 6.0, and it looks like I have a project ahead of > me to fix the SSL certs, which this post seems to cover: > https://virtuallyunderstood.wordpress.com/2016/08/03/ > troubleshooting-expired-psc-certificates-with-vsphere-6/ > > Further, I've checked with Nimble support, and they say that there is > some latency, but that their tools indicate that it is external to the > array - they're pointing at vsphere or the network, and suggesting I > should fail over the array to its other interface to see if that > clears the problem. I'm saving that for later. > > I'm also going to see about setting up a machine to monitor the > server/iSCSI switch to which the hosts and SANs are attached - what > I'm seeing in PRTG for that doesn't give me what I want. > > It just goes deeper and deeper... > > Kurt > > Kurt > > > I've got a ticket open with vmware now > > On Fri, May 26, 2017 at 12:20 PM, Kurt Buff <[email protected]> wrote: > > All, > > > > I have a 2012R2 file server running as a VM on vSphere 6.0. > > > > Here's what I'm seeing: > > > > Copy large file (win7 ISO) from file server to workstation, I get > > roughly 12-13Mbytes/second, wired or wireless. > > > > Copy that file from workstation to server over a wireless connection, > > same speed - 12-13Mbytes/second > > > > Copy that file from workstation to server over wired connection, speed > > degrades to 1Mbyte/second or less > > > > Copy that file to another 2012R2 VM on the same host on the same SAN > > volume (our print server), and speeds are 12-13Mbytes/second for both > > wired and wireless. > > > > I've made sure that the following are disabled: RSS, atime, 8.3 > > filename generation, TCP Chimney. > > > > RAM and CPU utilization on this machine are well within limits. > > > > I'm thoroughly stumped. > > > > Anyone have pointers for me? I'm about to raise a case with MSFT. > > > > Kurt > > >
