RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which enables a system to take advantage of several hard drives as a single logical unit. Put simply, all drives are used as one and the info on all of them is identical. This type of a configuration has 2 key advantages over using a single drive to keep data - the first one is redundancy, so in case one drive fails, the data will be accessed from the others, and the second is better performance because the input/output, or reading/writing operations will be spread among a number of drives. You can find different RAID types in accordance with the number of drives are used, whether reading and writing are both performed from all drives simultaneously, if data is written in blocks on one drive after another or is mirrored between drives in the same time, and so on. Depending on the particular setup, the error tolerance and the performance vary.

RAID in Website Hosting

The SSD drives which our cutting-edge cloud Internet hosting platform employs for storage function in RAID-Z. This type of RAID is designed to work with the ZFS file system which runs on the platform and it takes advantage of the so-called parity disk - a specific drive where information saved on the other drives is duplicated with an additional bit added to it. If one of the disks fails, your Internet sites will continue working from the other ones and after we replace the malfunctioning 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 and every file adequately and to verify the integrity of the info duplicated on the new drive. This is another level of security for the info which you upload to your website hosting account along with the ZFS file system which compares a unique digital fingerprint for each and every file on all the drives in real time.

RAID in Semi-dedicated Servers

The SSD drives which are used for storing any site content uploaded to the semi-dedicated server accounts which we provide function in RAID-Z. This is a specific configuration where one or more drives are employed for parity i.e. the system will add an extra bit to any data cloned on such a disk drive. If a disk fails and is substituted with another one, what info will be duplicated on the latter will be a combination calculated between the data on the other drives and that on the parity one. This is done to make sure that the info on the new drive will be correct. During the procedure, the RAID will continue functioning normally and the malfunctioning drive will not impact the normal operation of your sites in any respect. Using SSDs in RAID-Z is a fantastic addition to the ZFS file system which runs on our top-notch cloud platform with regards to preserving the integrity of your files since ZFS uses specific digital identifiers named checksums so as to prevent silent data corruption.

RAID in VPS Servers

All VPS server accounts that we provide are created on physical servers which use SSD drives functioning in RAID. At least 1 drive is employed for parity - one additional bit is added to the data cloned on it and in case a main disk stops working, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the accurate data is restored on the new drive included in the RAID. In the mean time, your sites will remain online since all the info will still load from at least one more hard drive. In the event that you add regular backups to your VPS plan, a copy of your information will be saved on standard disk drives that also function in RAID as we want to make certain that any sort of site content you upload will be safe and sound all the time. Employing multiple hard drives in RAID for all of the main and backup servers enables us to offer fast and reliable hosting service.