Redundant Array of Independent Disks, or RAID, is a method of storing content on a number of hard disk drives at the same time. A RAID might be software or hardware depending on the hard drives that are used - physical or logical ones, still what is common between them is that they all operate as just one single unit where information is saved. The key advantage of employing a RAID is redundancy since the data on all of the drives will be exactly the same all the time, so even if a drive fails for whatever reason, the information will still be available on the remaining drives. The overall performance is also enhanced as the reading and writing processes can be split between different drives, so a single one can't be overloaded. There are different sorts of RAIDs where the capabilities and fault tolerance can vary according to the particular setup - whether info is written on all drives in real time or it is written on a single drive and afterwards mirrored on another, what amount of drives are used for the RAID, etcetera.

RAID in Web Hosting

The advanced cloud Internet hosting platform where all web hosting accounts are generated uses super fast NVMe drives as an alternative to the traditional HDDs, and they function in RAID-Z. With this configuration, numerous hard drives work together and at least 1 is a dedicated parity disk. In simple terms, when data is written on the rest of the drives, it's cloned on the parity one adding an extra bit. This is carried out for redundancy as even in case a drive fails or falls out of the RAID for some reason, the data can be rebuilt and verified using the parity disk and the data recorded on the other ones, which means that practically nothing will be lost and there won't be any service disorders. This is one more level of security for your info in addition to the cutting-edge ZFS file system which uses checksums to ensure that all of the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Servers

The NVMe drives that are used for holding any site content uploaded to the semi-dedicated server accounts that we provide function in RAID-Z. This is a specific configuration where one or more hard drives are used for parity i.e. the system will add an additional bit to any data copied on this kind of a drive. In the event that a disk fails and is substituted with a new one, what data will be copied on the latter will be a combination calculated between the data on the remaining disks and that on the parity one. This is done to make sure that the info on the new drive will be correct. Throughout the procedure, the RAID will continue working normally and the faulty drive will not affect the proper operation of your sites in any way. Working with NVMes in RAID-Z is an outstanding addition to the ZFS file system which runs on our revolutionary cloud platform with regards to preserving the integrity of your files as ZFS uses special digital identifiers called checksums so as to prevent silent data corruption.

RAID in VPS Servers

The physical servers where we generate VPS server employ quick NVMe drives which will increase the speed of your websites significantly. The disk drives operate in RAID to make sure that you won't lose any information as a result of a power loss or a hardware breakdown. The production servers take advantage of a variety of drives where the info is saved and one disk is used for parity i.e. one bit is added to all of the info copied on it, that makes it easier to recover the website content without any loss if a main drive breaks down. If you choose our backup service, your info will be stored on an independent machine which uses standard hard-disk drives and although there's no parity one in this case, they are also in a RAID to guarantee that we will have a backup of your website content all of the time. With this configuration your information will always be safe because it will be available on multiple disk drives.