vRA-vRB-vRO flow

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esxi-host-shows-disconnected-vmware

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Symptom: The host and VMs in a vcenter server appears to be disconnected. Issue: The host and its corresponding vms could appear as disconnected due to issue with any of the following services. vpxa - a service which runs in the esxi host. This service communicates with vcenter server. hostd - core service which runs in the esxi host vpxd - a service which runs in the vcenter server which communicates with the vpxa Resolution: 1. Try to ping the ESXi host. This ensures that the host is reachable 2. Ensure you can login to the VMs remotely. This ensures that VMs in the host are working fine. 3. Try to login to the ESXi host using vsphere client. This ensures that the hostd services are running perfectly. If this step fails, restart the hostd service using putty. 4. If the above three steps worked fine for you, the issue would be with the vpxa or vpxd service. In that case, first try to restart the vpxa service in the host and if that didnot resol...
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ESXi : Lost uplink redundancy on virtual switch "vSwitch0". Physical NIC vmnic0 is down

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We had an issue suddenly getting an alert : Lost uplink redundancy on virtual switch "vSwitch0". Physical NIC vmnic0 is down. Affected portgroups:"vMotion", "Management Network". So as a troubleshooting Select the ESXi host effected Click on Configuration, Select Networking, Click on vSwitch0 Properties,Click on Network adapters Select on vmnic0, Click on remove, Click on Close Again Select Networking, Click on vSwitch0 Properties,Click on Network adapters, Click on Add, Select the vmnic0, Click on Next, Click on Next, Click on Finish Now Click on Ports tab of vSwitch Properties, Select on vMotion, Click on Edit, Click on NIC Teaming, Select on vmnic1, Click on Moveup button  to Active Adapters, Select on vmnic0, Click on Move Down to Standby Adapters, Click on OK Now Click on Ports tab of vSwitch Properties, Select on Management Network, Click on Edit, Click on NIC Teaming, Select on vmnic1, Click on Moveup button  to Active Adapters, Select o...
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"Unable to apply DRS resource settings on host" error in vCenter Server

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If the problem persists after restarting the management agents:         1.         Put the host into maintenance mode. Note : If DRS does not migrate the virtual machines to other hosts, migrate them manually.         2.         Verify that EVC is enabled on the cluster.         3.         If EVC is enabled, navigate to the  Edit Settings  of the cluster.         4.         Click  VMware EVC  and confirm that it is currently enabled and has the proper setting for the cluster.         5.         Ensure there are no virtual machines running on the host.         6.         Remove the ESXi/ESX host by dragging it out of the clu...
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