Fault Model
Explore the fail-stop fault model used in RAID technology. Understand how this simple model assumes disks are either fully working or completely failed, with easily detectable faults. This lesson helps you grasp fundamental fault assumptions essential for designing reliable RAID arrays before tackling more complex disk failures.
We'll cover the following...
We'll cover the following...
To understand RAID and compare different approaches, we must have a fault model in mind. RAIDs are designed to detect and recover from certain kinds of disk faults. Thus, knowing exactly which faults to expect is critical in arriving upon a working design.
The first fault model we will assume is quite simple ...