RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that allows a system to employ multiple hard drives as one single logical unit. Simply put, all the drives are used as one and the info on all of them is the same. This kind of a configuration has 2 huge advantages over using just a single drive to store data - the first one is redundancy, so in case one drive stops working, the data will be accessible through the others, and the second one is improved performance as the input/output, or reading/writing operations will be spread among several drives. There are different RAID types based on how many drives are used, whether reading and writing are both done from all drives at the same time, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. According to the particular setup, the fault tolerance and the performance could differ.

RAID in Cloud Web Hosting

All content that you upload to your new cloud web hosting account will be placed on quick SSD drives that work in RAID-Z. This setup is built to work with the ZFS file system that runs on our cloud hosting platform and it adds an additional level of protection for your site content in addition to the real-time checksum verification which ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is saved on several disks and at least 1 is a parity disk - whenever information is recorded on it, an additional bit is added, so if any drive fails for some reason, the stability of the data can be verified by recalculating its bits in accordance with what is stored on the production drives and on the parity one. With RAID-Z, the operation of our system won't be interrupted and it'll continue working smoothly until the malfunctioning drive is replaced and the info is synced on it.

RAID in Semi-dedicated Servers

In case you host your sites within a semi-dedicated server account from our company, all of the content which you upload will be stored on SSD drives which work in RAID-Z. With this form of RAID, at least 1 of the hard disks is employed for parity - when data is synchronized between the drives, an extra bit is added to it on the parity one. The reasoning behind this is to guarantee the integrity of the info which is copied to a new drive in case one of the drives in the RAID stops working because the website content being copied on the new disk is recalculated from the data on the standard hard drives and on the parity one. An additional advantage of RAID-Z is that even if a drive stops functioning, the system can switch to a different one immediately without service disruptions of any kind. RAID-Z adds one more level of security for the content which you upload on our cloud hosting platform together with the ZFS file system which uses unique checksums in order to verify the integrity of every single file.

RAID in VPS Servers

All VPS server accounts that we offer are generated on physical servers which take advantage of SSD drives functioning in RAID. At least 1 drive is intended for parity - one additional bit is added to the info copied on it and in case a main disk fails, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the correct information is recovered on the new drive included in the RAID. In the mean time, your sites will stay online as all the information will still load from at least 1 more drive. In case you add routine backups to your VPS plan, a copy of your information will be saved on standard disk drives which also work in RAID as we want to make certain that any kind of site content you add will be risk-free at all times. Employing multiple drives in RAID for all main and backup servers allows us to offer fast and reliable Internet hosting service.