# RAID 0 vs RAID 1

* **RAID 1 offers redundancy through mirroring**, i.e. data is written identically to two drives.<br>
* **RAID 0 offers no redundancy and instead uses striping**, i.e. data is split across all the drives.<br>
* This means **RAID 0 offers no fault tolerance**; if any of the constituent drives fails, the RAID unit fails.
