Redundant Array of Independent Disks, or RAID, is a way of keeping content on several hard disk drives concurrently. A RAID might be software or hardware based on the drives that are used - physical or logical ones, yet what’s common between them is that they all perform as a single unit where information is kept. The biggest advantage of using a RAID is redundancy since the info on all the drives will be the same at all times, so even in the event that some drive fails for whatever reason, the data will still be available on the other drives. The general performance is also enhanced because the reading and writing processes will be split between different drives, so a single one won't be overloaded. There are different kinds of RAIDs where the capabilities and fault tolerance may differ according to the specific setup - whether information is written on all drives real-time or it is written on one drive and then mirrored on another, what number of drives are used for the RAID, and so on.

RAID in Shared Hosting

The NVMe drives which our cutting-edge cloud Internet hosting platform uses for storage function in RAID-Z. This kind of RAID is created to work with the ZFS file system that runs on the platform and it uses the so-called parity disk - a specific drive where info located on the other drives is copied with an additional bit added to it. In case one of the disks stops working, your sites will continue working from the other ones and once we replace the bad one, the info that will be cloned on it will be recovered from what is stored on the remaining drives as well as the data from the parity disk. This is performed in order to be able to recalculate the elements of each and every file adequately and to verify the integrity of the info copied on the new drive. This is an additional level of security for the content which you upload to your shared hosting account together with the ZFS file system which analyzes a special digital fingerprint for each and every file on all of the disk drives in real time.

RAID in Semi-dedicated Hosting

In case you host your sites inside a semi-dedicated hosting account from our company, all of the content you upload will be kept on NVMe drives which work in RAID-Z. With this form of RAID, at least one of the hard drives 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 information that is copied to a new drive in case one of the hard drives in the RAID stops functioning because the site content being copied on the brand new disk is recalculated from the data on the standard drives and on the parity one. An additional advantage of RAID-Z is the fact that even in the event that a hard drive stops working, the system can switch to another one quickly without service disruptions of any sort. RAID-Z adds an additional level of safety for the content that you upload on our cloud hosting platform together with the ZFS file system which uses unique checksums so as to validate the integrity of each file.

RAID in VPS Web Hosting

All virtual private server accounts that we provide are generated on physical servers that use NVMe drives functioning in RAID. At least 1 drive is employed for parity - one extra bit is included in the data cloned on it and if a main disk stops working, this bit makes it much simpler to recalculate the bits of the files on the damaged hard disk so that the accurate data is recovered on the new drive included in the RAID. At the same time, your sites will stay online since all the info will still load from at least 1 more hard disk. In case you add routine backups to your VPS plan, a copy of the data will be stored on standard hard drives which also work in RAID as we want to make sure that any sort of website content you upload will be safe and sound all the time. Using multiple hard drives in RAID for all main and backup servers enables us to offer fast and reliable Internet hosting service.