Redundant Array of Independent Disks, or RAID, is a method of storing content on a number of hard disk drives simultaneously. A RAID could be software or hardware depending on the HDDs which are used - physical or logical ones, yet what is common between them is the fact that they all work as one single unit where your information is stored. The biggest advantage of employing a RAID is redundancy as the information on all of the drives will be identical all the time, so even in the event that one of the drives fails for some reason, the data will still be present on the rest of the drives. The overall performance will also improve as the reading and writing processes can be split between different drives, so a single one can't be overloaded. There are different sorts of RAIDs where the performance and fault tolerance could differ according to the specific setup - whether info is written on all the drives real-time or it is written on a single drive and then mirrored on another, what number of drives are used for the RAID, and many others.

RAID in Cloud Hosting

Our cutting-edge cloud hosting platform where all cloud hosting accounts are created employs super fast SSD drives as an alternative to the traditional HDDs, and they function in RAID-Z. With this configuration, a number of hard disk drives work together and at least a single one is a dedicated parity disk. Put simply, when data is written on the remaining drives, it's copied on the parity one adding an extra bit. This is carried out for redundancy as even if a drive fails or falls out of the RAID for some reason, the information can be rebuilt and verified using the parity disk and the data stored on the other ones, so not a thing will be lost and there won't be any service disturbances. This is another level of security for your data together with the revolutionary ZFS file system which uses checksums to make sure that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Servers

The information uploaded to any semi-dedicated server account is stored on SSD drives that function in RAID-Z. One of the drives in such a configuration is used for parity - any time data is cloned on it, an additional bit is added. In case a disk turns out to be faulty, it will be removed from the RAID without interrupting the work of the Internet sites because the data will load from the other drives, and when a new drive is included, the data that will be cloned on it will be a mix between the info on the parity disk and data stored on the other hard disks in the RAID. That is done in order to guarantee that the information which is being duplicated is accurate, so as soon as the new drive is rebuilt, it could be integrated into the RAID as a production one. This is one more guarantee for the integrity of your data since the ZFS file system that runs on our cloud hosting platform compares a unique checksum of all the copies of your files on the different drives in order to avoid any probability of silent data corruption.

RAID in VPS Servers

If you employ one of our VPS server plans, any content you upload will be saved on SSD drives which function in RAID. At least one drive is employed for parity to guarantee the integrity of your data. In simple terms, this is a special drive where info is copied with one bit added to it. In case a disk from the RAID stops working, your Internet sites will continue working and when a new disk takes the place of the flawed one, the bits of the data that will be duplicated on it are calculated by using the healthy and the parity drives. This way, any possibility of corrupting data during the process is averted. We also employ ordinary hard drives that operate in RAID for storing backup copies, so if you include this service to your VPS package, your content will be kept on multiple drives and you'll never need to worry about its integrity even in the event of multiple drive breakdowns.