RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that allows a system to use many hard drives as one single logical unit. Simply put, all drives are used as one and the data on all of them is the same. This type of a setup has two key advantages over using a single drive to store data - the first is redundancy, so if one drive fails, the info will be accessible from the remaining ones, and the second is better performance as the input/output, or reading/writing operations will be distributed among several drives. You can find different RAID types based on what amount of drives are used, if reading and writing are both handled from all the drives simultaneously, whether 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 exact setup, the error tolerance and the performance vary.

RAID in Website Hosting

The SSD drives which our cutting-edge cloud hosting platform employs for storage operate in RAID-Z. This kind 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 info stored on the other drives is cloned with an additional bit added to it. In case one of the disks stops functioning, your websites will continue working from the other ones and after we replace the bad one, the information which will be copied on it will be recovered from what is stored on the rest of the drives as well as the data from the parity disk. This is done in order to be able to recalculate the bits of each and every file correctly and to verify the integrity of the information duplicated on the new drive. This is one more level of security for the info which you upload to your website hosting account along with the ZFS file system that compares a special digital fingerprint for each and every file on all of the hard drives in real time.

RAID in Semi-dedicated Hosting

The RAID type that we use for the cloud web hosting platform where your semi-dedicated hosting account will be created is called RAID-Z. What is different about it is that at least one of the disks is used as a parity drive. Simply put, whenever any kind of data is copied on this special disk drive, one more bit is included to it and in case a defective disk is replaced, the info which will be cloned on it is a combination of the data on the other drives in the RAID and that on the parity one. This is done to make sure that the information is intact. Throughout this process, your sites will be up and running normally as RAID-Z makes it possible for an entire drive to fail without service interruptions and it simply works by using one of the other ones as the main production drive. Employing RAID-Z together with the ZFS file system that uses checksums to guarantee that no data can get silently corrupted on our servers, you won't need to worry about the integrity of your files.

RAID in VPS

All virtual private server accounts that our company offers are created on physical servers that use SSD drives operating in RAID. At least 1 drive is intended for parity - one additional bit is added to the info cloned on it and if a main disk breaks down, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the accurate information is restored on the new drive included in the RAID. At the same time, your Internet sites will still be online since all the data will still load from at least 1 other hard disk. In the event that you add regular backups to your VPS package, a copy of your data will be kept on standard disk drives that also operate in RAID because we want to make sure that any kind of site content you add will be safe and sound all the time. Using multiple drives in RAID for all the main and backup servers permits us to offer fast and reliable hosting service.