Redundant Array of Independent Disks, or RAID, is a method of keeping content on a number of hard drives simultaneously. A RAID could be software or hardware based on the HDDs which are used - physical or logical ones, yet what is common between them is the fact that they all perform as one single unit where info is stored. The main advantage of using a RAID is redundancy as the info on all drives will be the same all the time, so even if some drive fails for whatever reason, the info will still be available on the other drives. The overall performance is also better as the reading and writing processes could be split between multiple drives, so a single one won't be overloaded. There are different types of RAIDs where the effectiveness and fault tolerance can vary depending on the specific setup - whether data is written on all drives in real time or it is written on a single drive and afterwards mirrored on another, what number of drives are used for the RAID, etcetera.

RAID in Shared Hosting

All the content that you upload to your new shared hosting account will be placed on quick SSD drives which work in RAID-Z. This configuration is built to employ the ZFS file system that runs on our cloud web hosting platform and it adds an additional level of security for your website content on top of the real-time checksum verification which ZFS uses to ensure the integrity of the data. With RAID-Z, the data is stored on several disks and at least 1 is a parity disk - whenever data is recorded on it, an additional bit is added, so in the event that any drive stops working for some reason, the integrity of the information can be verified by recalculating its bits based on what is saved on the production drives and on the parity one. With RAID-Z, the operation of our system won't be interrupted and it'll continue working effectively until the faulty drive is replaced and the information is synchronized on it.

RAID in Semi-dedicated Hosting

The SSD drives which are used for saving any site content uploaded to the semi-dedicated hosting accounts which we offer work in RAID-Z. This is a specific configuration where one or more drives are employed for parity i.e. the system will add an additional bit to any data duplicated on this type of a disk drive. In the event that a disk fails and is replaced with a new one, what information will be cloned on the latter will be a combination calculated between the data on the other hard disks and that on the parity one. This is done to guarantee that the info on the new drive shall be accurate. Throughout the process, the RAID will continue operating adequately and the faulty drive will not affect the adequate operation of your websites in any respect. Working with SSDs in RAID-Z is an amazing addition to the ZFS file system which runs on our advanced cloud platform in terms of preserving the integrity of your files as ZFS uses special digital identifiers called checksums in order to prevent silent data corruption.


The physical servers where we generate virtual private server use fast SSD drives that will increase the speed of your websites noticeably. The hard disks function in RAID to make sure that you will not lose any information as a result of a power loss or a hardware failure. The production servers work with many different drives where the info is kept and one disk is used for parity i.e. one bit is added to all info copied on it, that makes it much easier to restore the site content without loss in the event a main drive fails. In case you pick our backup service, your data will be stored on an independent machine which uses standard hard-disk drives and though there's no parity one in this case, they are also in a RAID to guarantee that we will have a backup copy of your site content all of the time. With this type of configuration your info will always be safe since it will be available on several disk drives.