| Feature | Dynamic Disk | Storage Spaces | | :--- | :--- | :--- | | | Mirror, RAID-5 | Two-way mirror, Three-way mirror, Parity, Dual parity | | Portability | Poor | Good (export/import pool) | | SSD optimization | No | Yes (tiering, write-back cache) | | Resiliency | Disk failure = possible data loss | Pool can lose multiple disks | | User interface | Disk Management only | Settings + PowerShell | | Support status | Deprecated | Active development |
New-StoragePool -FriendlyName "Pool1" -PhysicalDisks (Get-PhysicalDisk -CanPool $true) New-VirtualDisk -FriendlyName "Mirror1" -StoragePoolFriendlyName "Pool1" -ResiliencySettingName Mirror -Size 1TB Initialize-Disk -VirtualDisk (Get-VirtualDisk Mirror1) Do you need software RAID (mirroring/striping) without a hardware card? ├─ No → Use Basic Disk (simpler, portable, modern) └─ Yes → Is your Windows version older than 8/2012? ├─ Yes → Use Dynamic Disk (legacy option) └─ No → Use Storage Spaces (recommended) Final advice: For home users and modern PCs, always choose Basic Disk . For advanced storage needs on Windows 10/11/Server 2016+, learn Storage Spaces . Only use Dynamic Disk if you are maintaining a legacy system that cannot be upgraded. dynamic disk vs basic disk