Redundant Array of Independent Disks, or RAID, is a method of keeping content on multiple hard drives simultaneously. A RAID could be software or hardware based on the HDDs that are used - physical or logical ones, yet what is common between them is the fact that they all work as just one single unit where your information is kept. The top advantage of employing a RAID is redundancy because the info on all drives shall be identical all the time, so even in case some drive fails for whatever reason, the information will still be available on the remaining drives. The overall performance is also enhanced since the reading and writing processes will be split between multiple drives, so a single one can't be overloaded. There're different types of RAIDs where the functionality and fault tolerance may vary depending on the particular setup - whether your data is written on all the drives real-time or it's written on one drive and afterwards mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Hosting

Our cutting-edge cloud web hosting platform where all hosting accounts are generated uses fast SSD drives rather than the classic HDDs, and they operate in RAID-Z. With this configuration, several hard drives function together and at least a single one is a dedicated parity disk. Simply put, when data is written on the other drives, it is copied on the parity one adding an extra bit. This is carried out for redundancy as even if some drive fails or falls out of the RAID for some reason, the info can be rebuilt and verified thanks to the parity disk and the data saved on the other ones, therefore not a thing will be lost and there will not be any service disorders. This is one more level of protection for your info in addition to the advanced ZFS file system that uses checksums to guarantee that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Servers

If you host your sites in a semi-dedicated server account from our company, any content which you upload will be saved on SSD drives which operate in RAID-Z. With this kind of RAID, at least one of the hard disks is used for parity - when data is synchronized between the disks, an extra bit is added to it on the parity one. The idea behind this is to ensure the integrity of the info which is cloned to a new drive if one of the drives in the RAID stops working because the site content being copied on the new disk is recalculated from the information on the standard disk drives and on the parity one. An additional advantage of RAID-Z is that even if a disk drive fails, the system could switch to another one right away without service disruptions of any kind. RAID-Z adds an additional level of protection for the content you upload on our cloud hosting platform together with the ZFS file system that uses unique checksums so as to authenticate the integrity of each file.

RAID in VPS Servers

The physical servers where we make VPS server work with super fast SSD drives which will boost the speed of your Internet sites substantially. The hard drives function in RAID to make sure that you won't lose any info as a result of a power loss or a hardware failure. The production servers work with many different drives where the info is saved and one disk is used for parity i.e. one bit is added to all data copied on it, that makes it much easier to restore the content without loss in the event a main drive breaks down. In case you choose our backup service, your info will be stored on an individual machine that uses standard hard-disk drives and despite the fact that there isn't a parity one in this case, they are also in a RAID to ensure that we will have a backup of your content all the time. With this kind of configuration your information will always be safe as it will be available on many disk drives.