HP ProLiant ML110 G4 Server - Manual (Page 16)

Understanding RAID 16
The following figure shows a RAID 1 array being built from two disk drives of dissimilar size.
RAID 10
A RAID 10 array is built from two equal-sized RAID 1 arrays. Data in a RAID 10 array is both striped and
mirrored. Mirroring provides data protection, and striping improves performance.
Using as an example the same set of drives as in the RAID 0 discussion, the total usable drive space is still
1,000 GB if these drives are configured into a RAID 10 array. However, only 500 GB can be used to store data
in this case. The remaining 500 GB is used to store the mirrored data that provides fault tolerance.
This example is illustrated in the following figure.