Redundant Array of Independent Disks, or RAID, is a way of storing content on multiple hard disk drives at the same time. A RAID can be software or hardware depending on the hard drives that are used - physical or logical ones, yet what is common between them is the fact that they all work as a single unit where data is kept. The biggest advantage of using a RAID is redundancy as the info on all drives is exactly the same all the time, so even in the event that one of the drives fails for some reason, the data will still be available on the rest of the drives. The overall performance is also better as the reading and writing processes will be split between multiple drives, so a single one won't be overloaded. There are different kinds of RAIDs where the effectiveness and fault tolerance could differ based on the particular setup - whether info is written on all of the drives in real time or it's written on a single drive and then mirrored on another, what amount of drives are used for the RAID, and many others.

RAID in Website Hosting

The NVMe drives that our cutting-edge cloud Internet hosting platform employs for storage function in RAID-Z. This type of RAID is developed to work with the ZFS file system which runs on the platform and it uses the so-called parity disk - a specific drive where data kept on the other drives is duplicated with an extra bit added to it. If one of the disks stops working, your Internet sites will continue working from the other ones and after we replace the problematic one, the information which will be copied on it will be recovered from what is stored on the other drives along with the data from the parity disk. This is performed in order to be able to recalculate the elements of each file adequately and to authenticate the integrity of the info copied on the new drive. This is one more level of security for the information that you upload to your website hosting account together with the ZFS file system which compares a unique digital fingerprint for each file on all of the disk drives in real time.

RAID in Semi-dedicated Hosting

The RAID type that we use for the cloud hosting platform where your semi-dedicated hosting account shall be created is called RAID-Z. What is different about it is that at least one of the disks is employed as a parity drive. Put simply, whenever any data is copied on this specific disk drive, one more bit is added to it and if a problematic disk is changed, the data that will be duplicated on it is a combination of the data on the remaining drives in the RAID and that on the parity one. This is done to guarantee that your data is intact. During this process, your websites will be up and running normally since RAID-Z allows for a whole drive to fail without any service interruptions and it simply uses one of the remaining ones as the main production drive. Using RAID-Z together with the ZFS file system that uses checksums to guarantee that no data can get silently corrupted on our servers, you will never have to worry about the integrity of your files.

RAID in VPS Hosting

All virtual private server accounts that we offer are made on physical servers which employ NVMe drives operating in RAID. At least one drive is employed for parity - one additional bit is added to the information duplicated on it and if a main disk stops working, this bit makes it simpler to recalculate the bits of the files on the damaged drive so that the correct info is restored on the new drive added to the RAID. At the same time, your sites will remain online since all the data will still load from at least one more drive. In the event that you add routine backups to your VPS package, a copy of the information will be kept on standard hard disks which also work in RAID since we want to make sure that any content you upload will be protected all the time. Working with multiple hard disks in RAID for all main and backup servers allows us to offer fast and reliable hosting service.