RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that enables a system to take advantage of a number of hard drives as one single logical unit. Put simply, all the drives are used as one and the info on all of them is identical. Such a setup has two huge advantages over using just a single drive to store data - the first is redundancy, so in case one drive doesn't work, the data will be accessed from the others, and the second one is better performance since the input/output, or reading/writing operations will be distributed among multiple drives. There're different RAID types in accordance with what amount of drives are used, if reading and writing are both executed from all the drives concurrently, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, and many others. Based on the particular setup, the fault tolerance and the performance may vary.

RAID in Cloud Website Hosting

The NVMe drives which our cutting-edge cloud web hosting platform uses for storage work in RAID-Z. This kind of RAID is developed to work with the ZFS file system that runs on the platform and it works by using the so-called parity disk - a specific drive where data kept on the other drives is cloned with an extra bit added to it. In case one of the disks stops functioning, your sites will continue working from the other ones and as soon as we replace the faulty one, the information which will be duplicated on it will be rebuilt from what is stored on the remaining drives together with the information from the parity disk. This is done in order to be able to recalculate the elements of each and every file adequately and to authenticate the integrity of the data copied on the new drive. This is an additional level of security for the information which you upload to your cloud website hosting account in addition to the ZFS file system that analyzes a special digital fingerprint for each file on all of the hard drives in real time.

RAID in Semi-dedicated Hosting

The NVMe drives which are used for holding any content uploaded to the semi-dedicated hosting accounts that we offer function in RAID-Z. This is a specific configuration where one or more hard drives are used for parity i.e. the system will add an additional bit to any data copied on such a hard drive. In the event that a disk fails and is substituted with a new one, what data will be duplicated on the latter will be a combination calculated between the data on the other drives and that on the parity one. This is done to guarantee that the info on the new drive will be correct. During the procedure, the RAID will continue functioning adequately and the faulty drive won't have an effect on the adequate operation of your Internet sites in any respect. Working with NVMes in RAID-Z is a great addition to the ZFS file system which runs on our revolutionary cloud platform in terms of preserving the integrity of your files as ZFS uses unique digital identifiers identified as checksums to prevent silent data corruption.

RAID in VPS Web Hosting

The NVMe drives that we use on the physical machines where we generate virtual private servers operate in RAID to make sure that any content that you upload will be available and intact all the time. At least 1 drive is used for parity - one bit of info is added to any data copied on it. If a main drive fails, it is replaced and the information that will be cloned on it is calculated between the remaining drives and the parity one. It's done this way to make sure that the correct information is copied and that not a single file is corrupted as the new drive will be used in the RAID afterwards. Also, we use hard drives working in RAID on the backup servers, so in the event that you add this upgrade to your VPS plan, you will use an even more reliable Internet hosting service as your content will be available on multiple drives regardless of any kind of unforeseen hardware failure.