RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that allows a system to take advantage of multiple hard drives as a single logical unit. To put it differently, all of the drives are used as one and the data on all of them is the same. Such a configuration has two key advantages over using a single drive to keep data - the first one is redundancy, so in the event that one drive fails, the information will be accessed from the remaining ones, and the second is better performance since the input/output, or reading/writing operations will be distributed among different drives. You can find different RAID types in accordance with how many drives are used, if reading and writing are both handled from all drives concurrently, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Depending on the exact setup, the error tolerance and the performance could differ.

RAID in Cloud Website Hosting

The revolutionary cloud web hosting platform where all cloud website hosting accounts are created uses super fast NVMe drives as an alternative to the classic HDDs, and they function in RAID-Z. With this configuration, several hard disks work together and at least one is a dedicated parity disk. Basically, when data is written on the rest of the drives, it's cloned on the parity one adding an extra bit. This is done for redundancy as even if a drive fails or falls out of the RAID for whatever reason, the info 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 will be no service disturbances. This is an additional level of security for your info together with the revolutionary ZFS file system which uses checksums to ensure that all of the data on our servers is intact and is not silently corrupted.

RAID in Semi-dedicated Hosting

The NVMe drives that are used for holding any content uploaded to the semi-dedicated hosting accounts which we offer operate in RAID-Z. This is a special setup where one or more drives are employed for parity i.e. the system will include an additional bit to any data duplicated on this type of a hard drive. If a disk fails and is substituted with a new one, what data will be duplicated on the latter shall be a mix calculated between the data on the remaining disks and that on the parity one. This is done to ensure that the data on the new drive shall be accurate. Throughout the process, the RAID will continue functioning normally and the faulty drive will not impact the proper operation of your sites by any means. 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 as ZFS uses special digital identifiers known as checksums in order to avoid silent data corruption.

RAID in VPS Hosting

The physical servers where we create virtual private server use extremely fast NVMe drives that will increase the speed of your sites significantly. The hard drives function in RAID to ensure that you won't lose any data because of a power loss or a hardware breakdown. The production servers use many different drives where the data is saved and one disk is used for parity i.e. one bit is added to all info copied on it, that makes it easier to restore the website content without loss if a main drive breaks down. If you choose our backup service, the information will be saved on a separate machine which uses standard hard-disk drives and even though there's no parity one in this case, they are also in a RAID to make sure that we will have a backup copy of your site content all of the time. With this configuration your information will always be safe since it will be available on several disk drives.