NTSTATUS 0xC05CFF0B (STATUS_SVHDX_NO

Status / error code:

Category:

Constant name:

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Facility:

Operating System:

Description:

the Shared VHDX open request did not provide a valid initiator identity.

Could be also:
Constant	Type	OS
ERROR_SVHDX_NO_INITIATOR	HRESULT	Windows

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STATUS_VHD_SHARED	STATUS_VHDSET_BACKING_STORAGE_NOT_FOUND

STATUS_SVHDX_NO_INITIATOR

The shared-disk request lacks the identity required for coordination

STATUS_SVHDX_NO_INITIATOR means a Shared VHDX open did not include a valid initiator identifier. Shared storage must distinguish participating initiators so that errors, reservations, and availability events can be associated with the correct guest or connection.

This is not a VHDX file-format error. Review the VM-to-host connection and the guest-cluster shared-disk configuration that supplies initiator context. The base status specifically advises checking related Continuous Availability failures, so server-side availability and connection history are relevant evidence.

What to verify

Correlate the failing open with VM, host, cluster node, connection, and initiator information.
Review related availability or failover events before changing disk files or reservations.
Verify the supported shared-drive configuration rather than attempting to synthesize an initiator identifier outside the owning stack.

References

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