Redundant Array of Independent Disks, or RAID, is a method of saving content on several hard disk drives at the same time. A RAID might be software or hardware based on the drives that are used - physical or logical ones, but what is common between them is the fact that they all function as one single unit where information is stored. The top advantage of using a RAID is redundancy since the info on all drives will be the same at all times, so even if a drive fails for some reason, the info will still be present on the rest of the drives. The overall performance is also enhanced because the reading and writing processes could be split between different drives, so a single one can't be overloaded. There're different kinds of RAIDs where the performance and fault tolerance may vary according to the exact setup - whether your data is written on all the drives in real time or it is written on a single drive and afterwards mirrored on another, what number of drives are used for the RAID, etc.

RAID in Hosting

The SSD drives which our cutting-edge cloud web hosting platform uses for storage function in RAID-Z. This kind of RAID is developed 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 data saved on the other drives is copied with an additional bit added to it. In the event that one of the disks stops working, your Internet sites shall continue working from the other ones and once we replace the faulty one, the info which will be cloned on it will be rebuilt from what is stored on the remaining drives as well as the data from the parity disk. This is done so as to be able to recalculate the elements of every file correctly and to authenticate the integrity of the information copied on the new drive. This is another level of security for the information that you upload to your hosting account along with the ZFS file system that compares a unique digital fingerprint for every single file on all of the hard drives in real time.

RAID in Semi-dedicated Hosting

The SSD drives that are used for storing any site content uploaded to the semi-dedicated hosting accounts that we offer work in RAID-Z. This is a specific configuration where one or more drives are used for parity i.e. the system will add an extra bit to any data duplicated on this type of a hard drive. In the event that a disk fails and is replaced with a new one, what info will be cloned on the latter will be a mix calculated between the data on the other hard disks and that on the parity one. This is done to ensure that the information on the new drive will be correct. Throughout the process, the RAID will continue functioning normally and the malfunctioning drive will not have an impact on the normal operation of your websites in any respect. Using SSDs in RAID-Z is an outstanding addition to the ZFS file system that runs on our state-of-the-art cloud platform in terms of preserving the integrity of your files as ZFS uses special digital identifiers identified as checksums to prevent silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts which we provide are made on physical servers that use SSD drives functioning in RAID. At least one drive is used for parity - one extra bit is included in the information duplicated on it and if a main disk fails, this bit makes it simpler to recalculate the bits of the files on the damaged disk drive so that the accurate information is recovered on the new drive included in the RAID. At the same time, your websites will stay online as all the information will still load from at least 1 other disk drive. In the event that you add regular backups to your VPS package, a copy of your information will be kept on standard hard disks that also work in RAID since we would like to make sure that any sort of content you upload will be protected all the time. Employing multiple hard drives in RAID for all the main and backup servers enables us to offer fast and reliable hosting service.