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ERROR_SPACES_ENCLOSURE_AWARE_INVALID
Enclosure awareness places redundant data across separate JBOD enclosures
ERROR_SPACES_ENCLOSURE_AWARE_INVALID means IsEnclosureAware cannot be honored for this virtual disk. The feature depends on reliable enclosure identity and enough disks in enough independent enclosures to satisfy the selected resiliency.
Merely connecting disks through several paths does not create enclosure fault domains. If the hardware or provider does not expose enclosure topology, Storage Spaces cannot guarantee that copies or parity fragments survive an entire enclosure failure.
Verify topology before enabling the flag
- Enumerate storage enclosures and map each candidate physical disk to its enclosure.
- Confirm the JBOD hardware exposes supported enclosure services and stable identifiers.
- Count enclosures and disks per enclosure required by the requested resiliency.
- Check for disks whose enclosure association is unknown or duplicated.
- Test automatic placement without the override to distinguish topology from other geometry errors.
- Do not claim chassis-level fault tolerance when all copies reside in one enclosure.
References
- Microsoft: New-VirtualDisk -IsEnclosureAware
- Microsoft: storage fault-domain objects
- Microsoft: fault tolerance in Storage Spaces
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