RAID, or Redundant Array of Independent Disks, is a technology of storing data on several hard disk drives which work together as one logical unit. The drives could be physical or logical i.e. in the latter case one single drive is divided into separate ones via virtualization software. In any case, identical data is kept on all of the drives and the main benefit of using this kind of a setup is that in the event that a drive breaks down, the data shall still be available on the other ones. Having a RAID also enhances the overall performance because the input and output operations will be spread among a few drives. There are several types of RAID depending on how many hard disks are used, whether writing is performed on all drives in real time or just on one, and how the info is synchronized between the hard drives - whether it's 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 may vary.

RAID in Cloud Hosting

The cutting-edge cloud Internet hosting platform where all cloud hosting accounts are generated uses fast NVMe drives instead of the standard HDDs, and they work in RAID-Z. With this setup, a number of hard disk drives function together and at least one is a dedicated parity disk. Put simply, when data is written on the rest of the drives, it is copied on the parity one adding an extra bit. This is done for redundancy as even in case a drive fails or falls out of the RAID for whatever reason, the data can be rebuilt and verified thanks to the parity disk and the data stored on the other ones, which means that practically nothing will be lost and there won't be any service disturbances. This is another level of security for your data along with the advanced ZFS file system which uses checksums to guarantee that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Hosting

The NVMe drives that 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 disk drives are used for parity i.e. the system will add an extra bit to any data duplicated on such a drive. If a disk fails and is substituted with another one, what information will be copied on the latter will be a combination calculated between the data on the other hard disks and that on the parity one. This is done to ensure that the info on the new drive shall be correct. During the procedure, the RAID will continue operating normally and the faulty drive will not have an impact on the proper operation of your sites in any way. Working with NVMes in RAID-Z is an outstanding addition to the ZFS file system that runs on our revolutionary cloud platform in terms of preserving the integrity of your files since ZFS uses special digital identifiers known as checksums to avoid silent data corruption.

RAID in VPS Web Hosting

The physical servers where we create virtual private server employ fast NVMe drives that will boost the speed of your Internet sites noticeably. The hard drives function in RAID to make sure that you will not lose any information due to a power loss or a hardware failure. The production servers work with multiple drives where the info is saved and one disk is used for parity i.e. one bit is added to all of the data copied on it, which makes it much easier to restore the content without any loss if a main drive breaks down. If you use our backup service, your info will be kept on a separate machine that uses standard hard-disk drives and although there is no parity one in this case, they are also in a RAID to guarantee that we will have a backup of your content all of the time. With this setup your data will always be safe as it will be available on many disk drives.