Redundant Array of Independent Disks, or RAID, is a way of saving content on multiple hard drives concurrently. A RAID can be software or hardware depending on the drives which are used - physical or logical ones, but what’s common between them is the fact that they all function as a single unit where info is kept. The main advantage of using a RAID is redundancy since the data on all of the drives will be identical all of the time, so even in the event that one of the drives fails for whatever reason, the information will still be present on the other drives. The overall performance will also improve because the reading and writing processes could be split between various drives, so a single one can't be overloaded. There are different sorts of RAIDs where the capabilities and fault tolerance may differ depending on the particular setup - whether data is written on all the drives in real time or it is written on a single drive and after that mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Cloud Hosting

The SSD drives that our cutting-edge cloud web hosting platform uses for storage work in RAID-Z. This sort of RAID is created to work with the ZFS file system that runs on the platform and it works by using the so-called parity disk - a special drive where data located on the other drives is copied with an extra bit added to it. In case one of the disks fails, your sites will continue working from the other ones and once we replace the faulty one, the information that will be cloned on it will be recovered from what is stored on the other drives along with the data from the parity disk. This is performed so as to be able to recalculate the bits of each and every file properly and to verify the integrity of the info copied on the new drive. This is another level of security for the information which you upload to your cloud hosting account together with the ZFS file system that analyzes a special digital fingerprint for every single file on all of the drives in real time.

RAID in Semi-dedicated Hosting

The RAID type which we use for the cloud Internet hosting platform where your semi-dedicated hosting account will be created is called RAID-Z. What's different about it is that at least 1 of the disks is employed as a parity drive. Put simply, whenever any kind of data is duplicated on this specific hard drive, one more bit is added to it and in case a malfunctioning disk is replaced, the data which will be cloned on it is a mix of the data on the other disk drives in the RAID and that on the parity one. We do this to make sure that the data is intact. During this process, your Internet sites will be working normally since RAID-Z makes it possible for a whole drive to fail without causing any service disruptions and it simply uses one of the remaining ones as the main production drive. Using RAID-Z together with the ZFS file system which uses checksums to guarantee that no data shall get silently corrupted on our servers, you will not have to worry about the integrity of your files.


The physical servers where we generate virtual private server use super fast SSD drives which will boost the speed of your websites noticeably. The hard drives operate in RAID to make sure that you will not lose any information because of a power loss or a hardware malfunction. The production servers employ multiple drives where the info is saved and one disk is used for parity i.e. one bit is added to all the data copied on it, which makes it easier to recover the site content without loss in case a main drive fails. If you use our backup service, your info will be stored on an independent machine that uses standard hard-disk drives and despite the fact that there isn't a parity one in this case, they are also in a RAID to ensure that we will have a backup of your content all the time. With this setup your info will always be safe since it will be available on multiple disk drives.