RAID, or Redundant Array of Independent Disks, is a technology of saving data on several hard disks which work together as one logical unit. The drives could be physical or logical i.e. in the second case a single drive is split into independent ones using virtualization software. In either case, the same info is saved on all drives and the key advantage of using this type of a setup is that if a drive breaks down, the data will remain available on the other ones. Using a RAID also boosts the overall performance because the input and output operations will be spread among a few drives. There are several types of RAID dependant upon how many hard disks are used, whether writing is carried out on all the drives in real time or just on one, and how the data is synced between the hard drives - whether it's written in blocks on one drive after another or it is mirrored from one on the others. All these factors show that the error tolerance as well as the performance between the different RAID types may vary.

RAID in Cloud Web Hosting

The disk drives which we employ for storage with our outstanding cloud Internet hosting platform are not the standard HDDs, but high-speed solid-state drives (SSD). They work in RAID-Z - a special setup intended for the ZFS file system that we employ. All of the content that you upload to the cloud web hosting account will be kept on multiple drives and at least one of them shall be used as a parity disk. This is a special drive where an extra bit is added to any content copied on it. In the event that a disk in the RAID fails, it'll be changed with no service interruptions and the information will be recovered on the new drive by recalculating its bits using the data on the parity disk along with that on the remaining disks. This is done in order to ensure the integrity of the info and together with the real-time checksum verification which the ZFS file system performs on all drives, you'll never need to worry about the loss of any information no matter what.

RAID in Semi-dedicated Hosting

The SSD drives which are used for holding any website content uploaded to the semi-dedicated hosting accounts that we offer operate in RAID-Z. This is a special 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 kind of a disk drive. In the event that a disk fails and is replaced with a new one, what information will be copied on the latter will be a mix calculated between the data on the other drives and that on the parity one. This is done to guarantee that the information on the new drive shall be correct. During the procedure, the RAID will continue working adequately and the faulty drive will not affect the normal operation of your Internet sites in any respect. Working with SSDs in RAID-Z is an impressive addition to the ZFS file system which runs on our state-of-the-art cloud platform with regard to preserving the integrity of your files since ZFS uses special digital identifiers known as checksums in order 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 operating in RAID. At least 1 drive is employed for parity - one extra bit is added to the data duplicated on it and in case a main disk breaks down, this bit makes it simpler to recalculate the bits of the files on the damaged drive so that the accurate information is recovered on the new drive included in the RAID. Meanwhile, your Internet sites will stay online because all the information will still load from at least 1 other hard drive. In the event that you add regular backups to your VPS plan, a copy of the information will be stored on standard hard drives which also operate in RAID as we would like to make sure that any type of site content you add will be risk-free at all times. Using multiple hard disks in RAID for all the main and backup servers enables us to offer fast and reliable web hosting service.