RAID, or Redundant Array of Independent Disks, is a technology of storing data on a number hard disk drives which function together as one single logical unit. The drives could be physical or logical i.e. in the second case one drive is split into different ones through virtualization software. In any case, exactly the same data is saved on all the drives and the key advantage of using this type of a setup is that in the event that a drive breaks down, the data will still be available on the remaining ones. Having a RAID also improves the performance since the input and output operations will be spread among a couple of drives. There are several kinds of RAID depending on how many hard disks are used, whether writing is carried out on all drives in real time or just on one, and how the information is synced between the drives - whether it is written in blocks on one drive after another or all of it is mirrored from one on the others. These factors indicate that the fault tolerance and the performance between the various RAID types could differ.

RAID in Website Hosting

The hard disks which we employ for storage with our innovative cloud web hosting platform are not the classic HDDs, but extremely fast NVMes. They work in RAID-Z - a special setup designed for the ZFS file system which we work with. Any content that you add to the website hosting account will be stored on multiple disk drives and at least one of them will be employed as a parity disk. This is a specific drive where a further bit is added to any content copied on it. In case a disk in the RAID fails, it'll be changed without any service disturbances and the information will be recovered on the new drive by recalculating its bits using the data on the parity disk along with that on the other disks. This is done to guarantee the integrity of the data and along with the real-time checksum authentication which the ZFS file system runs on all drives, you'll never have to concern yourself with the loss of any data no matter what.

RAID in Semi-dedicated Hosting

The NVMe drives that are used for keeping any site content uploaded to the semi-dedicated hosting accounts which we offer operate in RAID-Z. This is a specific configuration where one or more hard drives are used for parity i.e. the system will include an extra bit to any data copied on this kind of a disk drive. If a disk fails and is substituted with another one, what info will be duplicated on the latter will be a mix calculated between the data on the other hard disks and that on the parity one. This is done to ensure that the information on the new drive shall be correct. Throughout the process, the RAID will continue operating normally and the faulty drive will not have an effect on the normal operation of your Internet sites at all. Using NVMes in RAID-Z is a fantastic addition to the ZFS file system that runs on our advanced cloud platform in terms of preserving the integrity of your files as ZFS uses specific digital identifiers referred to as checksums so as to avoid silent data corruption.


All virtual private server accounts that we offer are created on physical servers which employ NVMe drives working in RAID. At least one drive is used for parity - one additional bit is added to the info copied on it and in case a main disk fails, this bit makes it simpler to recalculate the bits of the files on the failed disk drive so that the accurate data is restored on the new drive included in the RAID. At the same time, your Internet sites will stay online since all the data will still load from at least one more hard drive. In case you add routine backups to your VPS package, a copy of your data will be stored on standard hard disks that also operate in RAID because we want to make sure that any sort of content you add will be protected at all times. Working with multiple drives in RAID for all main and backup servers enables us to offer fast and reliable hosting service.