What does NTSTATUS 0xC03A0011 (STATUS_VHD_METADATA_WRITE_FAILURE) mean?

STATUS_VHD_METADATA_WRITE_FAILURE

STATUS_VHD_METADATA_WRITE_FAILURE occurs when a virtual-disk operation needs to persist metadata but that update cannot be completed. In a VHDX file, metadata changes are distinct from guest payload writes and are protected by the format's metadata-update mechanisms.

This differs from STATUS_VHD_METADATA_READ_FAILURE, which occurs while retrieving existing metadata, and from STATUS_VHD_BLOCK_ALLOCATION_FAILURE, which concerns growing the backing payload mapping. A successful guest write cannot be assumed when its required virtual-disk metadata update failed.

Preserve the failure context

• Record host filesystem errors, available capacity, quota state and any concurrent checkpoint, resize or backup operation.
• Avoid retry loops that repeatedly modify the same VHDX until a copy or backup has been secured.
• Use the provider's recovery or restore workflow rather than editing metadata entries while the disk is attached.

References

• Microsoft: VHDX log
• Microsoft: VHDX metadata table header
• Microsoft: SetVirtualDiskMetadata APIs

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