RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which makes it possible for a system to use several hard drives as one single logical unit. In other words, all drives are used as one and the information on all of them is the same. Such a setup has two major advantages over using just a single drive to keep data - the first is redundancy, so in case one drive fails, the info will be accessible through the remaining ones, and the second one is improved performance since the input/output, or reading/writing operations will be distributed among multiple drives. You can find different RAID types depending on the number of drives are used, whether reading and writing are both handled from all the 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 Web Hosting

The NVMe drives which our cutting-edge cloud web hosting platform employs for storage work in RAID-Z. This sort of RAID is created to work with the ZFS file system which runs on the platform and it takes advantage of the so-called parity disk - a special drive where information stored on the other drives is cloned with an additional bit added to it. In the event that one of the disks stops functioning, your Internet sites shall continue working from the other ones and as soon as we replace the problematic one, the information that will be cloned on it will be rebuilt from what is stored on the other drives as well as the information from the parity disk. This is performed so as to be able to recalculate the elements of every file adequately and to verify the integrity of the info duplicated on the new drive. This is one more level of security for the content you upload to your cloud web hosting account along with the ZFS file system which analyzes a unique digital fingerprint for every single file on all the hard drives in real time.

RAID in Semi-dedicated Hosting

The NVMe drives which are used for keeping any website content uploaded to the semi-dedicated hosting accounts that we provide work in RAID-Z. This is a special configuration where one or more drives are used for parity i.e. the system will add an additional bit to any data duplicated on this kind of a drive. If a disk fails and is replaced with another one, what info will be copied on the latter will be a mix calculated between the data on the other disks and that on the parity one. This is done to guarantee that the info on the new drive shall be accurate. Throughout the procedure, the RAID will continue operating adequately and the malfunctioning drive will not have an effect on the proper operation of your Internet sites at all. Using NVMes in RAID-Z is a superb addition to the ZFS file system that runs on our state-of-the-art cloud platform with respect to preserving the integrity of your files since ZFS uses unique digital identifiers called checksums so as to prevent silent data corruption.

RAID in VPS

The physical servers where we generate virtual private server use high-speed NVMe drives that will boost the speed of your sites noticeably. The hard disks work in RAID to make sure that you won't lose any data as a result of a power loss or a hardware malfunction. The production servers take advantage of many different drives where the data is kept and one disk is used for parity i.e. one bit is added to all of the info copied on it, which makes it easier to recover the site content without loss in case a main drive fails. If you choose our backup service, your info will be saved on an individual machine that 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 of your site content all the time. With this setup your data will always be safe because it will be available on multiple disk drives.