Redundant Array of Independent Disks, or RAID, is a way of keeping content on a number of hard drives simultaneously. A RAID might be software or hardware depending on the HDDs which are used - physical or logical ones, yet what is common between them is that they all work as one single unit where info is stored. The key advantage of using a RAID is redundancy as the data on all of the drives will be exactly the same at all times, so even in the event that one of the drives fails for some reason, the info will still be present on the other drives. The general performance is also better since the reading and writing processes could be split between multiple drives, so a single one will not be overloaded. There're different types of RAIDs where the effectiveness and fault tolerance could differ based on the exact setup - whether information is written on all drives in real time or it's written on a single drive and afterwards mirrored on another, what number of drives are used for the RAID, etc.

RAID in Cloud Web Hosting

The SSD drives which 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 takes advantage of the so-called parity disk - a special drive where info saved on the other drives is copied with an additional bit added to it. If one of the disks stops working, your websites will continue working from the other ones and after we replace the bad one, the information which will be copied on it will be rebuilt from what is stored on the remaining drives together with the data from the parity disk. This is done in order to be able to recalculate the bits of every single file adequately and to verify the integrity of the info duplicated on the new drive. This is another level of security for the info which you upload to your cloud web hosting account along with the ZFS file system that analyzes a special digital fingerprint for each and every file on all the drives in real time.

RAID in Semi-dedicated Hosting

The SSD drives that are used for saving any site content uploaded to the semi-dedicated hosting accounts that we offer work in RAID-Z. This is a special configuration where one or more hard drives are employed for parity i.e. the system will add an additional bit to any data copied on this kind of a disk drive. In case that a disk fails and is substituted with another one, what info will be cloned on the latter will be a mix calculated between the data on the other drives and that on the parity one. This is done to ensure that the information on the new drive shall be correct. Throughout the process, the RAID will continue functioning normally and the malfunctioning drive will not have an effect on the adequate operation of your sites at all. Working with SSDs in RAID-Z is a superb addition to the ZFS file system that runs on our state-of-the-art cloud platform with regard to preserving the integrity of your files as ZFS uses specific digital identifiers called checksums so as to prevent silent data corruption.

RAID in VPS Web Hosting

In case you take advantage of one of our virtual private server solutions, any content that you upload will be stored on SSD drives which function in RAID. At least a single drive is used for parity to guarantee the integrity of the data. In simple terms, this is a special drive where info is copied with one bit added to it. If a disk inside the RAID breaks down, your websites will continue working and when a new disk takes the place of the faulty one, the bits of the information that will be duplicated on it are calculated by using the healthy and the parity drives. This way, any chance of corrupting data during the process is prevented. We also use standard hard disk drives which function in RAID for storing backups, so if you include this service to your VPS plan, your website content will be kept on multiple drives and you will never have to worry about its integrity even in the event of multiple drive failures.