RAID, or Redundant Array of Independent Disks, is a technology for storing data on several hard drives which work together as one logical unit. The drives can be physical or logical i.e. in the aforementioned case one drive is divided into different ones through virtualization software. In either case, the very same information is stored on all of the drives and the main advantage of employing this kind of a setup is that in the event that a drive breaks down, the data will remain available on the remaining ones. Using a RAID also boosts the overall performance as the input and output operations will be spread among several drives. There are several kinds of RAID dependant upon how many hard disks are used, whether writing is performed on all the drives in real time or just on a single one, and how the information is synced between the hard drives - whether it's recorded in blocks on one drive after another or all of it is mirrored from one on the others. All of these factors imply that the error tolerance and the performance between the various RAID types can vary.

RAID in Website Hosting

All the content that you upload to your new website hosting account will be held on fast SSD drives which work in RAID-Z. This configuration is built to work with the ZFS file system that runs on our cloud hosting platform and it adds one more level of protection for your content on top of the real-time checksum authentication that ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is stored on several disks and at least one is a parity disk - whenever information is written on it, an additional bit is added, so in case any drive fails for whatever reason, the stability of the information can be verified by recalculating its bits based on what is stored on the production drives and on the parity one. With RAID-Z, the operation of our system will not be interrupted and it will continue operating efficiently until the problematic drive is changed and the data is synced on it.

RAID in Semi-dedicated Hosting

The RAID type that we use for the cloud Internet hosting platform where your semi-dedicated hosting account will be created is named RAID-Z. What is 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 particular hard drive, one more bit is added to it and if a defective disk is changed, the data that will be cloned on it is a mix of the data on the other hard disks in the RAID and that on the parity one. It's done this way to make sure that the data is intact. During this process, your sites will be up and running normally since RAID-Z makes it possible for a whole drive to fail without service disruptions and it simply uses one of the remaining ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to ensure that no data shall get silently corrupted on our servers, you won't have to worry about the integrity of your files.

RAID in VPS Hosting

All virtual private server accounts which our company offers are created on physical servers which take advantage of SSD drives working in RAID. At least 1 drive is employed for parity - one additional bit is included in the data cloned on it and if a main disk breaks down, this bit makes it simpler to recalculate the bits of the files on the damaged hard disk so that the right info is recovered on the new drive added to the RAID. In the mean time, your websites will stay online because all the info will still load from at least 1 other hard drive. If you add regular backups to your VPS package, a copy of your data will be stored on standard disk drives which also operate in RAID as we want to make certain that any kind of site content you upload will be risk-free all of the time. Working with multiple hard disks in RAID for all main and backup servers allows us to offer fast and reliable hosting service.