Insufficient resources and vSphere HA failover
In vSphere infrastructure, we will come across many known problems in highly available clusters. In this section, we will start investigating and understanding different problems regarding insufficient resources and see how vSphere uses admission control to ensure the availability of these resources.
Here are some tips that you should follow before directly addressing the errors that will be discussed later:
- Ensure your shared storage/SAN/NAS is accessible from your vSphere hosts. You can also check the connectivity at Layer 2 and at the storage layer.
- Always verify that your vSphere networking is working normally and that you are able to reach your vCenter server, management network, gateways. Further, ...