Ever wondered what the term RAID in computing means? Here is an easy to understand article exclusively for Technoswift readers.
To begin, RAID is an acronym for Redundant Array of Inexpensive (or Independent) Disks. A RAID array is a collection of drives which collectively act as a single storage system (logical drive), which can tolerate the failure of a drive without losing data, and which can operate independently of each other.
There are tons of RAID configurations but 0, 1 and 5 are the most common.
RAID 0 splits the data between multiple drives. Easy way to remember is Zero is Speedy.
This can result in faster reading and writing speeds, as well as combining the capacities of the drives. Three 1TB drives will read as if they were one 3TB drive, and should be much faster than a single drive. The risk is that if any one of those drives fails, the entire raid is basically lost.
RAID 1 mirrors both drives so that they are exact duplicates. There is no increase in speed, but if one of the drives fails, all of the data remains recoverable. Easy way to remember is one is Reliable.
RAID 5 attempts to achieve the best of both worlds by including 'parity' blocks. That way, data can be accessed across multiple drives for increased speed, but if any single drive dies, it can be replaced and its contents can be reconstructed from the other drives. Five is well rounded but complex.
Confused by all the words? Watch this straight-forward spiceworks video for better understanding.
If you would like to know more about how we make your hard drives run faster and more efficient, give us a shout.