Redundant Array of Independent Disks, or RAID, is a way of saving content on several hard drives concurrently. A RAID might be software or hardware depending on the hard drives that are used - physical or logical ones, but what’s common between them is the fact that they all function as a single unit where your information is kept. The key advantage of using a RAID is redundancy as the info on all drives is the same all the time, so even if one of the drives fails for whatever reason, the data will still be present on the other drives. The general performance is also better because the reading and writing processes can be split between multiple drives, so a single one will not be overloaded. There're different types of RAIDs where the efficiency and fault tolerance may differ depending on the particular setup - whether your data is written on all drives real-time or it is written on a single drive and after that mirrored on another, what number of drives are used for the RAID, etcetera.

RAID in Hosting

The cutting-edge cloud web hosting platform where all hosting accounts are generated uses quick SSD drives rather than the classic HDDs, and they operate in RAID-Z. With this configuration, several hard drives work together and at least 1 is a dedicated parity disk. Put simply, when data is written on the other drives, it is cloned 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 using the parity disk and the data recorded on the other ones, therefore not a single thing will be lost and there won't be any service disorders. This is an additional level of security for your info together with the state-of-the-art ZFS file system which uses checksums to make sure that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Servers

The RAID type which we employ for the cloud Internet hosting platform where your semi-dedicated server account will be created is referred to as RAID-Z. What is different about it is that at least 1 of the disks is employed as a parity drive. Simply put, whenever any data is duplicated on this special hard drive, one more bit is included to it and in the event that a defective disk is changed, the data which will be duplicated on it is a combination of the data on the remaining disk drives in the RAID and that on the parity one. This is done to ensure that your info is intact. Throughout this process, your websites will be working normally because RAID-Z allows for a whole drive to fail without causing any service disruptions and it simply uses one of the other ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to warrant that no data will get silently corrupted on our servers, you will never have to worry about the integrity of your files.

RAID in VPS Servers

The physical servers where we make VPS server work with super fast SSD drives which will raise the speed of your sites noticeably. The drives function in RAID to make sure that you will not lose any information due to a power loss or a hardware malfunction. The production servers employ multiple drives where the info is stored and one disk is used for parity i.e. one bit is added to all of the info copied on it, which makes it much easier to recover the content without loss if a main drive breaks down. In case you pick 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 make sure that we will have a backup copy of your content all the time. With this setup your data will always be safe as it will be available on many disk drives.