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VMware backup fails with message “Failed to extract and set OS attributes collection from Prerequisites or VMX data”

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Problem description

  • Both, scheduled and the manual backup job 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.

  • VM Snapshot phase will not be 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 same or latest version than ESXi.

https://kb.vmware.com/s/article/1027672

See also

https://docs.druva.com/Knowledge_Bas...ribute_product