Redundant Array of Independent Disks, or RAID, is a way of storing content on a number of hard disks at the same time. A RAID might be software or hardware based on the HDDs which are used - physical or logical ones, yet what’s common between them is the fact that they all perform as just one single unit where information is stored. The main advantage of employing a RAID is redundancy as the data on all the drives is identical all of the time, so even if a drive fails for some reason, the information will still be present on the rest of the drives. The general performance will also improve since the reading and writing processes will be split between a number of drives, so a single one will not be overloaded. There're different sorts of RAIDs where the functionality and fault tolerance could differ depending on the particular setup - whether your data is written on all of the drives 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 SSD drives which our cutting-edge cloud Internet hosting platform employs for storage work in RAID-Z. This sort of RAID is intended to work with the ZFS file system that runs on the platform and it works by using the so-called parity disk - a special drive where data stored on the other drives is duplicated with an extra bit added to it. In case one of the disks fails, your sites will continue working from the other ones and as soon as we replace the malfunctioning one, the information that will be cloned on it will be rebuilt from what is stored on the remaining drives as well as the data from the parity disk. This is done so as to be able to recalculate the bits of every single file properly and to validate the integrity of the information duplicated on the new drive. This is an additional level of security for the info you upload to your website hosting account in addition to the ZFS file system that compares a unique digital fingerprint for each and every file on all of the disk drives in real time.

RAID in Semi-dedicated Hosting

The RAID type which we use for the cloud Internet hosting platform where your semi-dedicated hosting account shall be created is known as RAID-Z. What is different about it is that at least one of the disks is employed as a parity drive. In simple terms, whenever any data is copied on this particular hard drive, one more bit is included to it and in the event that a faulty disk is replaced, the information that will be copied on it is a combination of the data on the other hard drives in the RAID and that on the parity one. We do this to make sure that the info is intact. During this process, your Internet sites will be working normally as RAID-Z makes it possible for an entire drive to fail without causing any service disturbances and it simply works by using one of the other ones as the main production drive. Employing RAID-Z together with the ZFS file system that uses checksums to ensure that no data can get silently corrupted on our servers, you won't have to worry about the integrity of your files.

RAID in VPS Web Hosting

All virtual private server accounts that our company offers are made on physical servers which use SSD drives operating in RAID. At least one drive is intended for parity - one extra bit is included in the information duplicated on it and in case a main disk fails, this bit makes it easier to recalculate the bits of the files on the damaged disk drive so that the correct information is restored on the new drive added to the RAID. In the mean time, your Internet sites will stay online because all the data will still load from at least 1 other hard disk. In the event that you add routine backups to your VPS plan, a copy of your info will be saved on standard hard drives that also operate in RAID since we want to make sure that any sort of site content you upload will be safe and sound at all times. Employing multiple drives in RAID for all the main and backup servers allows us to offer fast and reliable web hosting service.