Thanks for the prompt response GayathriS.
HA is not currently enabled, and no other configuration changes were made to the VM since it was last seen working. No obvious warnings or indications are shown on the summary page (CPU and RAM are nominal). With no other VMs running, this still doesn't power on and produces the error.
Something from the error log may help:
- Swap: 3683: Failed to create swap file '/vmfs/volumes/52d71515-0f264c58-2f2f-38eaa7abfa2e/web3/vmx-web3-2638557098-1.vswp' : Not found
Interestingly I've also noticed I can't make configuration changes either.
- Failed to reconfigure virtual machine web3. Unable to write VMX file: /vmfs/volumes/52d71515-0f264c58-2f2f-38eaa7abfa2e/web3/web3.vmx.
I can see that the VMX file is there (looking via bash and datastore browser).
So again I suspect disk space, but not sure exactly where to check or free it up. There are 2x 1TB datastores both with approx 25 GB free. Specifically, approx 930GB capacity, 905GB provisioned, and 25GB free. Could it be that within the provisioned storage we're out of space?
I can try the suggestion of using another host, however, as last resort as the vmdk's are huge - it should work on the existing host, and did at least recently.
Any further suggestions are welcome!