Instead, take a deep breath and follow the steps below. SSH into your ESXi host and run:
Clicking "New Datastore" writes a new VMFS header and partition table, which will overwrite the old one. Once that happens, recovery goes from "moderate" to "forensic excavation."
Few things trigger a SysAdmin’s fight-or-flight response like logging into vSphere and seeing a datastore showing as "Not Mounted" or "Invalid Partition" . Your heart sinks. VMs are down. Backups? Let’s not talk about that right now.