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STATUS_SVHDX_ERROR_NOT_AVAILABLE
A request for detailed error data did not match stored server state
STATUS_SVHDX_ERROR_NOT_AVAILABLE follows a request for diagnostic data when the shared virtual-disk server has no matching error record. It does not prove that the earlier operation succeeded; it only says that no retrievable detail is available for the current query context.
This distinction matters after retries and failover. Error details can be associated with a particular request, connection, or initiator, so a later query from a different context may not retrieve the record that belonged to the original failure.
What to verify
- Correlate the detail request with the original operation, VM, initiator identity, and server instance.
- Capture the original NTSTATUS and host or cluster logs rather than relying on a later diagnostic query alone.
- Do not erase or recreate the VHDX merely because supplemental sense data is unavailable.
References
- Microsoft: VHD Set files for guest clusters
- Microsoft: RawSCSIVirtualDisk
- T10: SCSI unit-attention condition handling
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