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ERROR_SPACES_NUMBER_OF_COLUMNS_INVALID
Columns determine how many physical disks participate in each stripe
ERROR_SPACES_NUMBER_OF_COLUMNS_INVALID means the explicit column count falls outside the range supported for the selected pool, resiliency setting, and size. Columns are a virtual-disk geometry parameter, not the total number of disks installed in the server.
The usable count is constrained by eligible disks, mirror or parity layout, fault-domain separation, tiers, and the capacity needed on every participating column. Increasing columns may improve parallelism but can make future expansion and repair more restrictive.
Check the complete stripe geometry
- Count disks eligible for the target pool and usage, excluding retired or unhealthy devices.
- Validate the column count against the selected resiliency setting.
- Include copy, parity, and fault-domain requirements in the calculation.
- Check that each tier can satisfy the same requested geometry.
- Calculate stripe size from
Interleave × NumberOfColumns. - Let the provider choose columns automatically when no workload-tested value is required.
References
- Microsoft: CreateVirtualDisk column selection
- Microsoft: New-VirtualDisk -NumberOfColumns
- Microsoft: resiliency scale requirements
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