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NS_E_SET_DISK_UID_FAILED
NS_E_SET_DISK_UID_FAILED — 0xC00D0021
Diagnosing NS_E_SET_DISK_UID_FAILED
NS_E_SET_DISK_UID_FAILED identifies this Windows Media Services boundary: could not set the disk UID.
Why this boundary matters
This HRESULT identifies a Content Server storage transition or I/O boundary. Correlate disk UID, membership/layout generation, requested state and the first lower-level storage result before replacing media or rebuilding unrelated members.
Evidence to collect
| Field | What to preserve |
|---|---|
| Member | Disk UID and Content Server identity for the member being changed or accessed. |
| Layout | Current layout/generation and membership visible to the same administrative object. |
| Lifecycle | Online, rebuild, restripe or mirror state immediately before the failed transition. |
| Storage result | First lower-level I/O or management result tied to that same disk generation. |
Decision rule
Do not replace or rebuild unrelated members until the failing disk UID and current layout generation identify the exact storage transition that failed.
Focused test
Record the target disk, requested UID, current UID and first storage/permission error; verify metadata can be updated on that same member before changing layout.
Verification
Repeat the requested operation against the same disk UID and current layout generation. Confirm the intended state transition or I/O completes and that the lower-level storage result does not reappear.
Technical references
- Windows Media Services 9 Series SDK
- Windows Media Services HRESULT values
- Replicating a Windows Media server
- Microsoft HRESULT values for the Windows Media namespace
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