Redundant Array of Independent Disks, or RAID, is a method of storing content on multiple hard disks simultaneously. A RAID could be software or hardware based on the HDDs which are used - physical or logical ones, still what’s common between them is that they all operate as one single unit where info is saved. The top advantage of employing a RAID is redundancy since the info on all of the drives shall be the same all the time, so even if some drive fails for some reason, the data will still be available on the rest of the drives. The overall performance is also enhanced because the reading and writing processes will be split between different drives, so a single one will never be overloaded. There're different sorts of RAIDs where the performance and fault tolerance may differ according to the specific setup - whether information is written on all the drives in real time or it's written on one drive and after that mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Cloud Website Hosting

The NVMe drives that our cutting-edge cloud hosting platform employs for storage function in RAID-Z. This sort of RAID is developed to work with the ZFS file system that runs on the platform and it employs the so-called parity disk - a special drive where data stored on the other drives is copied with an additional bit added to it. If one of the disks stops functioning, your Internet sites will continue working from the other ones and once we replace the malfunctioning one, the data which will be copied on it will be recovered from what is stored on the remaining drives along with the information from the parity disk. This is done so as to be able to recalculate the bits of each file properly and to verify the integrity of the information copied on the new drive. This is one more level of security for the content which you upload to your cloud website hosting account along with the ZFS file system that compares a unique digital fingerprint for every single file on all the disk drives in real time.

RAID in Semi-dedicated Hosting

In case you host your websites within a semi-dedicated hosting account from our company, all of the content which you upload will be saved on NVMe drives which operate in RAID-Z. With this kind of RAID, at least 1 of the hard disks is used for parity - when data is synced between the hard drives, an additional bit is added to it on the parity one. The idea behind this is to guarantee the integrity of the data which is cloned to a new drive if one of the hard drives in the RAID stops working since the content being copied on the brand new disk is recalculated from the information on the standard disk drives and on the parity one. Another advantage of RAID-Z is that even if a disk drive fails, the system could switch to another one quickly without service interruptions of any sort. RAID-Z adds an extra level of safety for the content that you upload on our cloud Internet hosting platform in addition to the ZFS file system which uses unique checksums so as to verify the integrity of each file.

RAID in VPS Web Hosting

If you employ one of our virtual private server solutions, any content that you upload will be saved on NVMe drives which operate in RAID. At least one drive is employed for parity so as to guarantee the integrity of your information. In simple terms, this is a special drive where information is copied with one bit added to it. In case a disk inside the RAID breaks down, your Internet sites will continue working and when a new disk takes the place of the defective one, the bits of the info that will be cloned on it are calculated using the healthy and the parity drives. That way, any probability of corrupting data during the process is avoided. We also use ordinary hard drives which work in RAID for storing backup copies, so should you include this service to your VPS package, your content will be saved on multiple drives and you will never need to worry about its integrity even in the event of multiple drive failures.