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STATUS_SPACES_ALLOCATION_SIZE_INVALID
Allocation size is a virtual-disk provider parameter
This status concerns the allocation granularity accepted by Storage Spaces for the virtual disk. It is distinct from the size of an NTFS or ReFS cluster and from the interleave of a stripe. The provider can round an accepted virtual-disk size to its allocation-unit multiple, but it can reject an allocation size outside the supported range.
How to handle it
- Use the storage provider's default when no workload requirement justifies overriding allocation behavior.
- Keep requested virtual-disk size and allocation granularity compatible; a provider can report a created size rounded to its supported unit.
- Do not try to fix this by formatting the volume with a different filesystem cluster size.
Microsoft: CreateVirtualDisk size and allocation behavior
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