Introduction to RAID
Explore the fundamentals of RAID technology, its origins, and how it uses multiple disks to create a faster, larger, and more reliable storage system. Understand RAID's transparency, its advantages in performance, capacity, and fault tolerance, and key considerations for deploying RAID in computing environments.
We'll cover the following...
When we use a disk, we sometimes wish it to be faster; I/O operations are slow and thus can be the bottleneck for the entire system. When we use a disk, we sometimes wish it to be larger; more and more data is being put online and thus our disks are getting fuller and fuller. When we use a disk, we sometimes wish for it to be more reliable. When a disk fails, if our data isn’t backed up, all that valuable data is gone.
CRUX: HOW TO MAKE A LARGE, FAST, RELIABLE DISK
How can we make a large, fast, and reliable storage system? What are the key techniques? What are the trade-offs between different approaches?
In this chapter, we introduce the Redundant Array of Inexpensive Disks better known as ...