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COMADMIN_E_AMBIGUOUS_PARTITION_NAME
COM+ partition administration: exact meaning of COMADMIN_E_AMBIGUOUS_PARTITION_NAME
A partition name does not resolve uniquely to a partition ID. Partition-aware administration performs name lookup and finds multiple candidates or an ambiguous catalog state.
Windows describes this condition as “The partition name is not unique and cannot be resolved to a partition id”.
Where the result occurs
Partitions are logical containers with explicit IDs, names, user defaults, application contents, and platform enablement; operations must use the intended partition rather than assume a global namespace. In the specific case of this result, enumerate partition IDs/names through ICOMAdminCatalog2 and capture the caller’s current partition context.
Evidence to collect before repair
- Preserve all matching partition IDs and exact Unicode names; it anchors the failure to the real administration object.
- Evidence should include catalog migration or provisioning history, captured before a repair changes state.
- Collect the lookup method and caller partition context when diagnosing this result; without it the symbolic HRESULT is underdetermined.
- Record default-user and application assignments for each candidate.
Diagnostic sequence
- enumerate partitions by ID.
- identify the intended container from applications and assignments.
- The next diagnostic action is to change automation to use the partition ID.
- To isolate this result, repair duplicate naming through supported catalog operations.
- Repeat lookup and verify a single resolved ID.
Retry and recovery
Use the exact partition ID and repair duplicate naming if the catalog permits it.
Difference from nearby COMADMIN results
COMADMIN_E_CAT_DUPLICATE_PARTITION_NAME prevents a new collision; this value reports ambiguous lookup.
Practical administration scenario
Migration leaves two discoverable partition records with the same friendly name and name-based automation cannot choose one.
Official Microsoft references
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