Redundant Array of Independent Disks, or RAID, is a method of storing content on a number of hard disk drives simultaneously. A RAID might be software or hardware based on the hard drives that are used - physical or logical ones, yet what’s common between them is the fact that they all function as just one single unit where info is kept. The biggest advantage of using a RAID is redundancy because the information on all the drives is the same all the time, so even in case some drive fails for some reason, the information will still be available on the other drives. The overall performance is enhanced as well because the reading and writing processes can be split between multiple drives, so a single one will not be overloaded. There are different sorts of RAIDs where the functionality and fault tolerance may vary according to the specific setup - whether info is written on all drives in real time or it is written on one drive and afterwards mirrored on another, what amount of drives are used for the RAID, and so on.

RAID in Cloud Hosting

The SSD drives that our cutting-edge cloud web hosting platform employs for storage work in RAID-Z. This sort of RAID is developed to work with the ZFS file system which runs on the platform and it employs the so-called parity disk - a specific drive where information stored on the other drives is duplicated with an additional bit added to it. In case one of the disks fails, your websites shall continue working from the other ones and as soon as we replace the faulty one, the information that will be duplicated on it will be recovered from what is stored on the rest of the drives along with the info from the parity disk. This is done in order to be able to recalculate the elements of each file properly and to validate the integrity of the data copied on the new drive. This is one more level of security for the information which you upload to your cloud hosting account in addition to the ZFS file system which analyzes a unique digital fingerprint for each file on all the disk drives in real time.

RAID in Semi-dedicated Hosting

The RAID type that we employ for the cloud web 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 used as a parity drive. Simply put, whenever any kind of data is cloned on this special disk drive, one more bit is added to it and if a faulty disk is replaced, the information that 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. It's done this way to ensure that the information is intact. During this process, your websites will be working normally since RAID-Z makes it possible for an entire drive to fail without any service interruptions and it simply works by using one of the remaining ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to warrant that no data can get silently corrupted on our servers, you'll never have to worry about the integrity of your files.

RAID in VPS Hosting

The physical servers where we make virtual private server employ fast SSD drives which will raise the speed of your websites considerably. The hard disks work in RAID to guarantee that you will not lose any info as a result of a power loss or a hardware malfunction. The production servers take advantage of a variety of drives where the information is saved and one disk is used for parity i.e. one bit is added to all the information copied on it, that makes it easier to restore the site content without loss if a main drive fails. If you pick our backup service, the information will be kept on an independent machine that uses standard hard-disk drives and though there's no parity one in this case, they are also in a RAID to ensure that we will have a backup of your website content all the time. With this particular configuration your info will always be safe because it will be available on multiple disk drives.