What is Raid utility in computer .What is its function?
RAID used to be something you see for servers only. Now, most home desktops are capable of it with integrated RAID controller cards. It’s designed for two things: Backup and performance. If one hard drive fails (common in servers which run constantly), another one (with the same exact data-called a mirror) can turn on instantly and the end users will never notice that the there was a problem. Or A server that gets heavy user traffic may need the speed of multiple HDs to be able to satisfy the needs of all those computers without slowing down. Multiple HDs means multiple read/write heads that can access different parts of the file (stored across all HDs) simultaneously, speeding up the time it takes to get the data to the user. There are multiple configurations of RAID which allow for either maximum backup capabilities, performance, or a combination of both in varying degrees.
