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ERROR_HV_INVALID_PROXIMITY_DOMAIN_INFO
A proximity domain is a NUMA locality identifier, not a Windows domain
ERROR_HV_INVALID_PROXIMITY_DOMAIN_INFO concerns NUMA placement data supplied to Hyper-V. Proximity domains group processors and memory with relatively low access latency. An invalid domain ID, unsupported flags, reserved bits, or locality request inconsistent with the host topology can make partition creation or resource placement fail.
Record the complete HV_PROXIMITY_DOMAIN_INFO value and the host NUMA topology at the time of the call. Do not confuse the domain with an Active Directory name or device security domain. If the management layer synthesizes virtual NUMA settings, validate node counts, memory sizes, and processor placement together rather than checking the ID alone.
NUMA data to compare
- Requested proximity-domain ID and all flags or reserved bits.
- Physical host NUMA node and processor topology.
- Virtual NUMA node count, memory, and VP placement for the partition.
- Whether migration changed the available topology.
References
- Microsoft TLFS: Hyper-V proximity-domain identifier
- Microsoft TLFS: proximity data in partition creation
- Microsoft: virtual NUMA topology in Hyper-V
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