RAID, or Redundant Array of Independent Disks, is a technology for saving data on multiple hard drives that function together as a single logical unit. The drives could be physical or logical i.e. in the aforementioned case one single drive is divided into independent ones through virtualization software. In any case, the same info is kept on all drives and the main advantage of using this kind of a setup is that if a drive breaks down, the data shall still be available on the other ones. Employing a RAID also boosts the overall performance because the input and output operations will be spread among a couple of drives. There are several kinds of RAID based on how many hard drives are used, whether writing is performed on all the drives in real time or just on a single one, and how the info is synchronized between the drives - whether it is written in blocks on one drive after another or all of it is mirrored from one on the others. All of these factors indicate that the fault tolerance and the performance between the various RAID types can vary.

RAID in Web Hosting

The SSD drives that our cutting-edge cloud web hosting platform employs for storage operate in RAID-Z. This sort of RAID is created to work with the ZFS file system which runs on the platform and it employs the so-called parity disk - a special drive where information kept on the other drives is duplicated with an extra bit added to it. If one of the disks stops working, your websites will continue working from the other ones and as soon as we replace the problematic one, the info that will be cloned on it will be rebuilt from what is stored on the other drives along with the information from the parity disk. This is done so as to be able to recalculate the bits of every file adequately and to verify the integrity of the information duplicated on the new drive. This is an additional level of security for the info that you upload to your web hosting account along with the ZFS file system which compares a unique digital fingerprint for every single file on all drives in real time.

RAID in Semi-dedicated Hosting

In case you host your Internet sites inside a semi-dedicated hosting account from our company, all the content which you upload will be stored on SSD drives which work in RAID-Z. With this type of RAID, at least 1 of the disks is employed for parity - when data is synchronized between the disks, an additional bit is included in it on the parity one. The purpose behind this is to guarantee the integrity of the information which is cloned to a new drive in case one of the disks in the RAID stops working as the website content being copied on the new disk is recalculated from the info on the standard disk drives and on the parity one. An additional advantage of RAID-Z is the fact that even if a drive stops working, the system can easily switch to another one quickly without service disruptions of any kind. RAID-Z adds an additional level of security for the content which you upload on our cloud web hosting platform in addition to the ZFS file system which uses unique checksums as a way to authenticate the integrity of every single file.

RAID in VPS Hosting

The physical servers where we generate virtual private server employ super fast SSD drives which will increase the speed of your websites significantly. The drives work in RAID to make sure that you won't lose any info because of a power loss or a hardware breakdown. The production servers use multiple drives where the information is stored and one disk is used for parity i.e. one bit is added to all info copied on it, which makes it easier to restore the site content without any loss in the event a main drive breaks down. If you pick our backup service, the data will be kept on an individual machine that uses standard hard-disk drives and though there is no parity one in this case, they are also in a RAID to guarantee that we will have a backup of your website content all of the time. With this setup your info will always be safe as it will be available on multiple disk drives.