HRESULT 0x80E7000B (ERROR_SPACES_NOT_ENOUGH

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Description:

too few eligible physical disks or fault domains remain for the requested Storage Spaces operation.

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ERROR_SPACES_NUMBER_OF_COLUMNS_INVALID	ERROR_SPACES_EXTENDED_ERROR

ERROR_SPACES_NOT_ENOUGH_DRIVES

The provider counts usable placement resources, not every visible disk

ERROR_SPACES_NOT_ENOUGH_DRIVES means the requested layout or operation cannot be completed with the physical disks currently eligible. A machine can show many disks and still lack enough candidates because some are allocated, retired, unhealthy, reserved for journal/cache use, incompatible, or located in the same fault domain.

The required count also depends on resiliency, copies, parity, columns, enclosure awareness, and repair state. Reducing the virtual-disk size will not help when the blocker is placement geometry rather than capacity.

Build an eligibility inventory

List CanPool, Usage, health, operational state, and allocated size for every disk.
Identify disks already claimed by another pool or storage subsystem.
Count distinct enclosures or scale units required by fault-domain awareness.
Include disks needed to preserve mirror copies or parity during the operation.
Check sector-size and media/tier compatibility before counting a device.
Do not reset or erase disks until their ownership and data significance are understood.

References

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