Problem description
Both, scheduled and manual backup fails with the same error.
Failed to extract and set OS attributes collection from Prerequisites or VMX data
This can happen if the Vcenter is on a lower version than ESXi.
e.g Esxi on 6.0 and Vcenter on 5.1.0.
Can happen due to Vcenter License issue.
VM Snapshot phase will not complete in this case.
Traceback
Phoenix.log shows
[INFO] Exception occurred while snapshot:
[ERROR] Error <class 'inSyncLib.inSyncError.SyncError'>:Cannot contact the specified host (172.1.1.1). The host may not be available on the network, a network configuration problem may exist, or the management services on this host may not be responding. (#10006ffff : vim.fault.NoHost) (Error Code : VMWARE_VMOMI65535). Traceback -Traceback (most recent call last):
File "agents/vmware/vSphereAdapter.py", line 1116, in create_snapshot
File "agents/vmware/vSphereAdapter.py", line 1089, in _create_snapshot
File "inSyncLib/inSyncError.py", line 32, in raise_error
SyncError: Cannot contact the specified host (172.1.1.1). The host may not be available on the network, a network configuration problem may exist, or the management services on this host may not be responding. (#10006ffff : vim.fault.NoHost) (Error Code : VMWARE_VMOMI65535)
Resolution
To upgrade the Vcenter to the latest version and license it.