RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which permits a system to use multiple hard drives as one single logical unit. In other words, all the drives are used as one and the data on all of them is the same. This type of a configuration has two huge advantages over using just a single drive to keep data - the first is redundancy, so in the event that one drive fails, the data will be accessible through the others, and the second is improved performance as the input/output, or reading/writing operations will be spread among a number of drives. You can find different RAID types in accordance with what number of drives are used, if reading and writing are both done from all of the drives at the same time, if data is written in blocks on one drive after another or is mirrored between drives in the same time, and so on. According to the exact setup, the error tolerance and the performance may vary.

RAID in Hosting

The hard disks which we use for storage with our top-notch cloud hosting platform are not the traditional HDDs, but quick NVMes. They function in RAID-Z - a special setup developed for the ZFS file system that we work with. All of the content that you add to your hosting account will be held on multiple hard drives and at least 1 shall be used as a parity disk. This is a special drive where a further bit is included to any content copied on it. If a disk in the RAID stops working, it'll be changed without service disruptions and the info will be rebuilt on the new drive by recalculating its bits using the data on the parity disk along with that on the remaining disks. This is done so as to ensure the integrity of the data and along with the real-time checksum verification which the ZFS file system runs on all drives, you won't ever have to worry about losing any data no matter what.

RAID in Semi-dedicated Hosting

The NVMe drives which are used for storing any content uploaded to the semi-dedicated hosting accounts which we offer work in RAID-Z. This is a special setup where one or more hard drives are used for parity i.e. the system will add an additional bit to any data duplicated on such a hard drive. In the event that a disk fails and is substituted with a new one, what information will be cloned on the latter shall be a combination calculated between the data on the other drives and that on the parity one. This is done to guarantee that the data on the new drive shall be accurate. During the process, the RAID will continue operating adequately and the malfunctioning drive won't have an effect on the proper operation of your Internet sites in any way. Using NVMes in RAID-Z is an impressive addition to the ZFS file system that runs on our cutting-edge cloud platform with respect to preserving the integrity of your files because ZFS uses special digital identifiers called checksums to avoid silent data corruption.

RAID in VPS Hosting

The NVMe drives which we use on the machines where we create virtual private servers function in RAID to make sure that any content you upload will be available and intact all of the time. At least 1 drive is employed for parity - one bit of information is added to any data cloned on it. If a main drive stops working, it is replaced and the info that will be copied on it is calculated between the rest of the drives and the parity one. It's done this way to ensure that the required data is copied and that no file is corrupted as the new drive will be included in the RAID afterwards. Also, we use hard disks working in RAID on the backup servers, so in case you add this upgrade to your VPS package, you shall use an even more reliable Internet hosting service because your content will be available on multiple drives regardless of any sudden hardware malfunction.