RAID, or Redundant Array of Independent Disks, is a technology of storing data on multiple hard drives that operate together as one single logical unit. The drives could be physical or logical i.e. in the second case a single drive is split into individual ones through virtualization software. In either case, the same data is saved on all drives and the main benefit of employing this type of a setup is that in the event that a drive breaks down, the data shall still be available on the remaining ones. Employing a RAID also boosts the performance since the input and output operations will be spread among a number of drives. There are several types of RAID dependant upon how many hard disks are used, whether writing is performed on all drives in real time or just on one, and how the data is synchronized between the hard drives - whether it is recorded in blocks on one drive after another or it is mirrored from one on the others. These factors indicate that the error tolerance and the performance between the various RAID types may differ.

RAID in Cloud Web Hosting

The drives that we use for storage with our outstanding cloud Internet hosting platform are not the traditional HDDs, but fast solid-state drives (SSD). They operate in RAID-Z - a special setup developed for the ZFS file system which we work with. All the content that you add to your cloud web hosting account will be stored on multiple hard drives and at least 1 will be used as a parity disk. This is a special drive where a further bit is included to any content copied on it. In the event that a disk in the RAID stops working, it will be changed with no service disturbances and the data will be recovered on the new drive by recalculating its bits thanks to the data on the parity disk plus that on the remaining disks. This is done in order to guarantee the integrity of the data and together with the real-time checksum verification which the ZFS file system performs on all drives, you will never have to worry about the loss of any info no matter what.

RAID in Semi-dedicated Hosting

The RAID type that we use for the cloud Internet hosting platform where your semi-dedicated hosting account will be created is known as RAID-Z. What's different about it is that at least 1 of the disks is employed as a parity drive. Simply put, whenever any kind of data is duplicated on this specific hard drive, one more bit is added to it and if a defective disk is replaced, the information which will be cloned on it is a combination of the data on the remaining hard disks in the RAID and that on the parity one. We do this to make sure that your data is intact. During this process, your Internet sites will be functioning normally as RAID-Z makes it possible for a whole drive to fail without causing any service disturbances and it simply uses one of the remaining ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to guarantee that no data shall get silently corrupted on our servers, you won't need to worry about the integrity of your files.

RAID in VPS Web Hosting

The physical servers where we create virtual private server work with high-speed SSD drives which will raise the speed of your websites significantly. The hard disks operate in RAID to make sure that you will not lose any info as a result of a power loss or a hardware failure. The production servers employ multiple drives where the info is stored and one disk is used for parity i.e. one bit is added to all data copied on it, which makes it much easier to restore the site content without loss in case a main drive breaks down. In case you take advantage of our backup service, the info will be saved on an independent machine which uses standard hard-disk drives and although there isn't a parity one in this case, they are also in a RAID to guarantee that we will have a backup of your site content all of the time. With this kind of configuration your data will always be safe because it will be available on multiple disk drives.