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What is a RAID setup?

October 25th, 2012 Leave a comment Go to comments

After experiencing a hard drive failure, many customers ask us about more reliable solutions of data storage. One of these possible solutions is a RAID setup, which stands for “redundant array of independent disks.” This method of data storage combines multiple disks into one unit, providing a level of redundancy to insure the safety of the data even in the case of failed disks. The term is now used for many types of data storage that replicates data on multiple physical drives, but accessed by a computer operating system as a single drive.

RAIDs can be set up under a number of different types of architecture, depending on whether the user is more interested in data integrity, speed, or capacity. These are designated with numbers such as RAID 0 or RAID 1, etc. RAID 0 for example is used more for performance. The data is split up amongst the drives but it does not provide redundancy and therefore any drive failure destroys the array. More drives in the array allow for greater bandwith but also a greater risk of data loss.

RAID 1 on the other hand writes data identically to two drives, making a “mirrored set.” This setup may not perform as fast as the RAID 0, but the mirror setup allows for the array to continue functioning in the case of one of the drives failing, making this a better setup for users less concerned with speed and more interested in the preservation of their data.

There are several more types of RAID setups. If you are interested in your own RAID setup or just have questions about the possibilities, give us a call here at DriveFish and we will be glad to explain more and create a customer RAID setup for your needs.

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