NTSTATUS 0xC0E70011 (STATUS_SPACES_NUMBER_OF_GROUPS

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Description:

the requested LRC group count is invalid for this dual-parity configuration.

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STATUS_SPACES_WRITE_CACHE_SIZE_INVALID	STATUS_SPACES_DRIVE_OPERATIONAL_STATE_INVALID

STATUS_SPACES_NUMBER_OF_GROUPS_INVALID

NumberOfGroups is not a general disk-count control

For Storage Spaces, NumberOfGroups is used by Local Reconstruction Coding (LRC) with a dual-parity virtual disk. It is not a generic way to divide any mirror or simple space into groups. This status means the requested group count is outside the range supported by the selected configuration.

Practical guidance

Confirm that the virtual disk actually uses the applicable dual-parity/LRC scenario before setting this parameter.
Prefer the provider default unless the topology and failure-domain design have been validated for a custom group count.
Review group count together with columns, physical-disk redundancy, and number of data copies; changing one in isolation can make the layout unsatisfiable.

Microsoft: New-VirtualDisk NumberOfGroups

Microsoft: nested resiliency and LRC

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