Lecture 3. VMware ESXi 8.x Host Not Responding in vCenter Issue: Troubleshooting Tutorials

[@AravindHan008]

i have seen lot of online tutorial videos so fat , trust me this is simply the best and crisp video available on KZbin hands down , we learned 2 concepts and troubleshooting methods also .. keep up the great work dude ..

[@govmlab]

Thanks Aravind for appreciating our hard work to create these video lectures!! Glad to hear that you enjoyed watching our videos and found it informative. Keep Watching....Keep Learning!! Thanks once again!!

[@sravankumar8839]

After watching this videos, I resolved my ESXi host issue in organization that I'm observing from last few days. Thanks for your excellent teaching.

[@govmlab]

Glad it helped!

[@Ram-vg5dt]

Hi bro

[@SOULIGNITINGFROMSOURCE]

It was so simple and easy to understand. Your teaching so simple that even babies can understand hatsoff❤

[@govmlab]

Thank you so much Praveen😀 Glad to hear that you liked our lectures and find it useful. Keep Sharing and Enjoy Learning VMware with GOVMLAB.

[@Suresh_2304]

Good one bro.. video is very simple and clear to understand the troubleshooting steps.

[@govmlab]

Thanks Suresh for appreciating our hard work and efforts creating these tutorials for our learners. Glad to know that you enjoyed our lectures. Keep Sharing and Enjoy Learning VMware with GOVMLAB!!

[@krisryali]

this is very simple to understand for anyone. thanks for the vdeo

[@govmlab]

Thanks Krishna!! Glad to know that you found our channel informative. Keep Sharing and Enjoy Learning VMware with GOVMLAB!!

[@Infrafeed]

Thanks a ton for explaining in-depth

[@govmlab]

Thanks Mohit. Glad to know that you liked our lectures. Honestly, this is not the reflection of our In-depth learning. This is just basic level learning from our perspective. If you really have passion to learn VMware in-depth beyond basic L1/L2 level administration tasks then we would recommend you to explore our vSphere Zero to Hero Deep-Dive Program. This program is way more in-depth and help professionals to master this technology. As i mentioned, it depends upon learner capability, interest, passion and their career objective. We do see many learners are satisfied with basic administration level knowledge itself. If that's the goal then our youtube channel is way more enough. If you have interested learn more in-depth about architecture, implementation, packet and stack level details then we would recommend you to explore our vSphere Zero to Hero Program. That's the only program which can make professional Zero to Hero in VMware vSphere Technology. Reach out to us on WhatsApp no. [phone] for real in-depth learning about VMware.

[@saijagadeesh8784]

Very nice explanation and step by step procedure of troubleshooting

[@govmlab]

Thanks Jagadeesh for your appreciation. Glad to know that you liked our lecture Keep Watching and Enjoy learning VMware with GOVMLAB

[@chavabobby6197]

OMG! you saved my time and effort to solve this issue. Thank you so much.

[@govmlab]

Great to hear that!! Keep Sharing and Enjoy Learning VMware with GOVMLAB!!

[@chavabobby6197]

@@govmlab Hi, I recently found warning alarm from two host machines after restarting them that "Registration/unregistration of third-party IO filter storage providers fails on a host". Please tell me how to fix this alaram.

[@erictf2]

Good job on this video. simple and clear for the problem step by step. I will suggest doing a PSCP copy of all log files and configuration files before we fixed so we can have the root cause.

[@govmlab]

Thank you Eric for your kind feedback and appreciating our efforts :) You are absolutely correct, we should always be copying the log file and config files before fixing it so that we can root cause the issue later. This should be the general practice all the time as you suggested.

[@brauliotorres196]

easy and great explanation!

[@govmlab]

Glad you liked it!!

[@intercre7494]

Very good video resolve my doubt :)

[@govmlab]

Glad to hear that

[@akshaym1907]

Thanks Bro !! 😀

[@govmlab]

Thank you.

[@aurangzebathar7186]

awesome video....

[@govmlab]

Glad you liked it

[@aatish9988]

Great

[@govmlab]

Thanks Atish!!

[@sravankumar8839]

Also If possible, Post a video of detail explanation of Power options of VMs and ESXi Host and iDRAC console.

[@sohailshaikh-zj4dd]

can we directly restart esxi magmt service from troubleshooting option available in dcui

[@govmlab]

Yes Sohail.....You can do that.

[@sohailshaikh-zj4dd]

@@govmlab thanks for replying sir

[@itreallydo]

Great and informative video! Question though, I have a vsphere portal showing the VMs status as unknown. However, on a exsi the hostd and vpxa service show enabled. The VM services are also still accessible. Any thoughts?

[@govmlab]

Hi Michael, if you do see VM status as unknown which means that vcenter server is trying to find out the VM to specific location but it's not able to find it. Look like, VM location present in VMX file and doesn't match up with Location mentioned in vCenter Server inventory database. Since there is mismatch about VM location between VC database and VM exact location. That could be one of the reason, why VC shows VM as unknown. You can try unregistering the host of that specific VM from vcenter server and add it back. In that case, VC will update it's inventory database and might relocate that VM correctly. we hope, we could answer your query.

[@Simping4cats]

@@govmlab concur with govmlab. It has happened to me several times. It happens when issues arise between Vcenter, the esxis and your datastores. Finding the vmx file is critical. Remember in the datastores vm folders will keep the original name of the VM. if the VM has changed names multiple times I would verify by dates, times and data.

[@HaneefD]

But for me on production site host cannot get acess to ssh, as its not enabled and the dcui is not accessible the kvm console is showing No Signal help me with this issue sir

[@govmlab]

Hi Haneef If you server is not accessible through both SSH and ILO console Then you will have to connect monitor directly to Esxi host server using console port & get access to DCUI console This is not vmware specific issue ....its moreover environment or setup specific issue....can't help much on that

[@HaneefD]

@@govmlab Thank you sir for the quick response 😊

[@rejeevesundarbms3094]

How would we get into dcui consol other than lab environments where base esxi isn't present.?

[@govmlab]

Hi Rejeeve, Sorry but your question itself is not clear. DCUI console accessibility remains the same whether it's Lab or Production environment. DCUI console refers to Server Console which can be access either having direct access to Server Monitor screen or using ILO/IDRAC. I hope it clarifies your doubt.

[@rejeevesundarbms3094]

@@govmlab it does to an extent, as i am a newbie to tech

[@govmlab]

@@rejeevesundarbms3094 JYI, we also provide Master Deep-Dive Training Program on VMware Technology delivered by Industry Experts and Certified Professionals. Feel free to reach out to us in case if you are looking for career growth in VMware technology and want to build expertise in it.

[@pratikkshirsagar6481]

VMs in Esxi gets frequent disconnected, what can be the issue ?

[@govmlab]

Hi Pratik you should check for VM network connectivity or may be checkout the vNIC adapter type. sometime, it could VM NIC driver issue as well. Please look into vmkernel.log, hostd.log and vmware.log file for detailed investigation and root causing this issue.

[@spbringvideo]

What if I can't connect over dcui? F2 don't get correct password.

[@govmlab]

Hi Alex DCUI is similar to Server Console screen through which we get direct access to ESXi server when it's not reachable over Network. Yes, To access using DCUI, we need to remember root password of ESXi Host. If we don't remember it, then we can't connect to ESXi host using DCUI. Best Practices from VMware: Please make a note of root password and make sure you don't forget it. That's the reason, we always create another user with root user privileges to avoid such cases. You can reset the ESXi root password using Host Profiles only if ESXi Host is accessible from vCenter Server and profiles can be attached to this host.

[@HaneefD]

Hello sir Thanks for the information provided which is really helpful I have a question here If the esxi host reaches its maximum memory 99.9% does the host gets disconnected from the vc and its unable to ping and the kvm console is showing as "No Signal" and after sometime it got connected back to vc not sure what happened, how can we troubleshoot this issue

[@govmlab]

Hi Haneef That's a worst situation if your esxi host memory utilization goes upto 99.9% In such Scenario, there shouldn't be any doubt if your esxi host becomes unresponsive.

[@govmlab]

You should think about reducing memory utilization of the host by migrating vms to other hosts or add more memory to host. You can view memory utilization using esxtop command

[@HaneefD]

@@govmlab Thank you sir 👍🏼

[@somasundaram9347]

nice explanation sir, I'm looking forward more trouble shooting issue, could you please let me know if you provide training examples like in trainings, i'm new to this tech & interested make carrier in it, waiting for your workds

[@govmlab]

Hi Sundaram Yes, we do provide real time scenario based deep-dive training on vmware vSphere. Our training has transitioned many careers successfully looking for career growth in vmware datacenter technology. If you are interested in learning vmware in depth & want to build expertise in it then feel free to call us on [phone]. We will try our best to help you in becoming vmware expert

[@viraldesai6599]

If datastore is out of space, wat will happen to virtual machine ? i was asked this question in interview. Pls make a video on it.

[@govmlab]

Hi Viral If datastore is out of space. In such scenarios, VMkernel will suspend the running VMs which are requesting for datastore consumption. If your VM is in powered off state, then VM power on operation will fail due to out of datastore space issue.

[@viraldesai6599]

@@govmlab If there are multiple datastore connected to one VM then ?

[@reddyprasad4777]

I have one question actually this question asked me tech mahendra when login into vcenter esxi host is disconnected how to analyze? Please answer

[@govmlab]

Hi Prasad, There could be many reasons for that: 1. may be hostd daemon is not responding 2. may be VPXA and VPXD connectivity channel is broken 3. may be ESXi host management network connectivity is down 4. may be issue with firewall port blocking