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STATUS_SVHDX_ERROR_STORED
The returned status points to additional server-side diagnostics
STATUS_SVHDX_ERROR_STORED is a diagnostic marker for a Shared VHDX request. The storage side retained a more specific error together with sense data, so the NTSTATUS value is not the root cause to classify as a generic I/O failure.
Correlate the failing command with the host, VM, initiator identity, and server-side event or trace record before retrying. In a guest-cluster design, the same logical disk can be observed from more than one VM, and the detailed condition can belong to a particular initiator rather than to the VHDX file as a whole.
What to verify
- Preserve the original operation result and collect the associated server-side diagnostic record before issuing unrelated requests.
- Record VM, host, initiator, operation time, and any SCSI sense information exposed by the stack.
- Treat the stored error as the lead for diagnosis; do not overwrite its context with blind retry traffic.
References
- Microsoft: VHD Set files for guest clusters
- Microsoft: RawSCSIVirtualDisk
- T10: SCSI unit-attention condition handling
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