RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which allows a system to take advantage of a number of hard drives as a single logical unit. In other words, all the drives are used as one and the information on all of them is identical. This type of a setup has 2 major advantages over using a single drive to store data - the first is redundancy, so if one drive doesn't work, the data will be accessible through the others, and the second one is better performance since the input/output, or reading/writing operations will be distributed among several drives. There're different RAID types depending on what amount of drives are used, whether reading and writing are both handled from all drives simultaneously, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Determined by the particular setup, the error tolerance and the performance vary.

RAID in Cloud Hosting

The SSD drives that our cutting-edge cloud web hosting platform employs for storage function in RAID-Z. This kind of RAID is designed to work with the ZFS file system which runs on the platform and it uses the so-called parity disk - a special drive where info saved on the other drives is cloned with an extra bit added to it. In case one of the disks stops working, your Internet sites will continue working from the other ones and as soon as we replace the bad one, the info that will be cloned on it will be recovered from what is stored on the other drives as well as the information from the parity disk. This is performed in order to be able to recalculate the bits of each file adequately and to verify the integrity of the info duplicated on the new drive. This is one more level of security for the content you upload to your cloud hosting account in addition to the ZFS file system which analyzes a special digital fingerprint for each file on all the hard drives in real time.

RAID in VPS Hosting

If you use one of our virtual private server solutions, any content that you upload will be kept on SSD drives that work in RAID. At least one drive is employed for parity to guarantee the integrity of your info. In simple terms, this is a special drive where data is copied with one bit added to it. In case a disk inside the RAID fails, your websites will continue working and when a new disk replaces the faulty one, the bits of the data that will be cloned on it are calculated by using the healthy and the parity drives. That way, any probability of corrupting data throughout the process is avoided. We also employ regular hard drives that operate in RAID for storing backup copies, so should you add this service to your VPS package, your content will be kept on multiple drives and you will never need to worry about its integrity even in the event of multiple drive breakdowns.