Tag: ESXi
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Balanced Memory Configuration for ESXi Servers
Background ESXi servers are fundamental infrastructure. The underly hardware performance has a butterfly effect on the upper layer virtual machines and applications. Since there is less than 10% performance overhead on the virtualization layer. So it’s valuable to get full performance on the hardware layer. Memory is a big player in hardware performance tuning. Balanced…
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Convert Virtual Machine of VirtualBox to ESXi
How to convert Virtual Machine of VirtualBox to ESXi? Read this blog to learn more!
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Private IP Address Routes to L3 Subnet on Dual vNIC VM
It’s not easy for me to describe the issue in one line on the title. Let me give some background here. I have 2 set of VMs. Set 1 has VM A & VM B. Set 2 has VM C & VM D. Each VM has a vNIC configured with a private IP address. VM…
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Emulex OneConnect OCe10102 on ESXi 6.0
Please refer to following post for basic troubleshooting of Emulex OneConnect. How to Install Proper Drivers for 3rd Party Network Adapter on ESXi 5.x I have a box uses Emulex OneConnect OCe10102 network adapters. The adapter is quite old and Emulex brand card doesn’t support ESXi 6.0. I upgraded the server to ESXi 6.0 and…
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VMware Recalled VMware Tool 10.3.0
There is an issue been identified in VMware Tools 10.3.0 can result in a PSOD or guest network connectivity loss. VMware has released KB57796 for that.
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Troubleshooting Network Performance of Virtual Machine
There are several layers of networking on the virtualization infrastructure. Guest operating system, Virtual Machine, ESXi driver, physical network adapters, RJ45/SFP and network switches…etc. Sometimes it’s hard to say where exactly caused a problem. Especially hardware layer problems. Today I worked on a very interesting case, it may give some ideas to troubleshooting network performance…
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Cannot Complete File Creation Operation When Storage vMotion
Just quick notes. I saw following error when do storage vMotion. Cannot Complete File Creation Operation. When check /var/log/hostd.log. I saw following errors: 2017-11-28T02:51:04.476Z info hostd[76A80B70] [Originator@6876 sub=Vimsvc.TaskManager opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] Task Created : haTask–vim.host.OperationCleanup 2017-11-28T02:51:04.476Z info hostd[772C2B70] [Originator@6876 sub=Libs opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] CopyFromEntry: Hostlog_Dump: Hostlog /vmfs/volumes/598700ee-ec 2017-11-28T02:51:04.476Z info hostd[772C2B70] [Originator@6876 sub=Libs opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] UUID: 28dbb1b5-a9d8-e311-1061-03300000002d 2017-11-28T02:51:04.476Z…
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Network Problems of Auto Deployed ESXi Host in LAB
I built a simple Auto Deploy environment by vSphere 6.5 on nested environment. I created virtual ESXi hosts on a physical ESXi host to do the testing. The whole configuration was smoothly, I’m impressed Auto Deploy can be implemented in few hours. One thing bothered me was networking. New ESXi hosts cannot get IP addresses…
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ESXi 6.0 and 6.5 hosts no responding issue!
in ESXiThe smartd service can leads to ESXi 6.0 or 6.5 hosts no responding due to out of memory. I see that issue on ESXi 6.0 U2 and U3 both. I would recommend stay on ESXi 5.5 U3 at this moment. We do see the issue persist even after stop smartd service. Check out VMware official…