Which of these RAID types provide redundancy when a drive fails? Pick two.
A) RAID 0
B) RAID 1
C) RAID 5
D) RAID 00
E) Redundancy? Who really needs redundancy?
The answers: B) RAID 1 and C) RAID 5
RAID 1 (mirroring) and RAID 5 (striping with parity) both provide redundancy if you lose a hard drive. RAID 0 (striping) provides high performance, but there’s no redundancy if a drive crashes.
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Want to know more? Watch “RAID.” RAID arrays are common ways to provide high-throughput and redundancy for groups of hard drives. In this module, you’ll learn how the different RAID technologies can be used to build large-scale storage infrastructures. You’ll also learn the advantages and disadvantages of the different RAID technologies and how hardware and software RAID compares. |
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