Redundant Array of Independent Disks, or RAID, is a way of saving content on multiple hard disks simultaneously. A RAID could be software or hardware depending on the HDDs that are used - physical or logical ones, however what’s common between them is that they all operate as just one single unit where info is saved. The top advantage of using a RAID is redundancy because the info on all drives shall be exactly the same all of the time, so even in the event that some drive fails for whatever reason, the info will still be present on the remaining drives. The general performance is also enhanced since the reading and writing processes could be split between different drives, so a single one can't be overloaded. There are different kinds of RAIDs where the efficiency and fault tolerance can vary based on the particular setup - whether info is written on all drives real-time or it's written on a single drive and afterwards mirrored on another, what amount of drives are used for the RAID, and many others.

RAID in Cloud Website Hosting

The SSD drives which our cutting-edge cloud Internet hosting platform uses for storage work in RAID-Z. This kind of RAID is designed to work with the ZFS file system that runs on the platform and it employs the so-called parity disk - a special drive where info saved on the other drives is cloned with an extra bit added to it. In the event that one of the disks stops functioning, your Internet sites shall continue working from the other ones and after we replace the bad one, the info which will be copied on it will be rebuilt from what is stored on the other drives as well as the info 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 copied on the new drive. This is an additional level of security for the info that you upload to your cloud website hosting account together with the ZFS file system which analyzes a special digital fingerprint for each and every file on all the hard drives in real time.

RAID in VPS Web Hosting

The physical servers where we generate virtual private server work with extremely fast SSD drives which will boost the speed of your websites significantly. The disk drives work in RAID to make sure that you won't lose any information as a result of a power loss or a hardware malfunction. The production servers work with multiple drives where the information is kept and one disk is used for parity i.e. one bit is added to all of the data copied on it, which makes it easier to recover the content without any loss if a main drive fails. If you take advantage of our backup service, the info will be kept on an independent machine which uses standard hard-disk drives and though there isn't a parity one in this case, they are also in a RAID to ensure that we will have a backup copy of your site content at all times. With this type of configuration your data will always be safe because it will be available on several disk drives.