Which RAID level uses a combination of disk striping and mirrored volumes?

Which RAID level uses a combination of disk striping and mirrored volumes?

• RAID 0
• RAID 1
• RAID 5
• RAID 10 

 EXPLANATION

 

Some levels can be combined to produce a two-digit RAID level. RAID 10, then, is a combination of levels 1 (mirroring) and 0 (striping), which is why it is also sometimes identified as RAID 1 + 0. Mirroring is writing data to two or more hard drive disks (HDDs) at the same time – if one disk fails, the mirror image preserves the data from the failed disk. Striping breaks data into “chunks” that are written in succession to different disks. This improves performance because your computer can access data from more than one disk simultaneously. Striping does not, however, provide redundancy to protect information, which is why it is designated 0.

The Advantages Of RAID 10

Combining these two storage levels makes RAID 10 fast and resilient at the same time. If you need hardware-level protection for your data and faster storage performance, RAID 10 is a simple, relatively inexpensive fix. RAID 10 is secure because mirroring duplicates all your data. It's fast because the data is striped across multiple disks; chunks of data can be read and written to different disks simultaneously.