RAID, or Redundant Array of Independent Disks, is a technology of keeping data on multiple hard drives that work together as one logical unit. The drives can be physical or logical i.e. in the latter case one single drive is divided into independent ones through virtualization software. In any case, exactly the same data is kept on all drives and the key advantage of employing such a setup is that in case a drive stops working, the data shall still be available on the remaining ones. Employing a RAID also boosts the overall performance because the input and output operations will be spread among a couple of drives. There are several kinds of RAID depending on how many hard drives are used, whether writing is done on all of the drives in real time or just on one, and how the information is synchronized between the drives - whether it's written in blocks on one drive after another or it is mirrored from one on the others. All of these factors suggest that the error tolerance and the performance between the different RAID types can differ.

RAID in Shared Website Hosting

The advanced cloud web hosting platform where all shared website hosting accounts are made employs super fast SSD drives instead of the standard HDDs, and they function in RAID-Z. With this setup, a number of hard disk drives operate together and at least a single one is a dedicated parity disk. Basically, when data is written on the other drives, it's copied on the parity one adding an extra bit. This is done for redundancy as even in case some drive fails or falls out of the RAID for whatever reason, the data can be rebuilt and verified using the parity disk and the data recorded on the other ones, which means that absolutely nothing will be lost and there won't be any service interruptions. This is another level of protection for your data together with the revolutionary ZFS file system which uses checksums to make sure that all the data on our servers is intact and is not silently corrupted.

RAID in Semi-dedicated Servers

In case you host your websites inside a semi-dedicated server account from our firm, all of the content you upload will be kept on SSD drives which work in RAID-Z. With this form of RAID, at least 1 of the disks is used for parity - when data is synchronized between the disks, an extra bit is included in it on the parity one. The idea behind this is to guarantee the integrity of the info which is duplicated to a new drive in case one of the drives in the RAID stops functioning because the website content being copied on the brand new disk is recalculated from the data on the standard disk drives and on the parity one. An additional advantage of RAID-Z is that even if a hard drive fails, the system can switch to another one promptly without service interruptions of any type. RAID-Z adds one more level of protection for the content you upload on our cloud web hosting platform along with the ZFS file system which uses unique checksums in order to verify the integrity of each file.

RAID in VPS Servers

The physical servers where we generate VPS server use high-speed SSD drives that will raise the speed of your websites substantially. The drives work in RAID to make sure that you won't lose any information as a result of a power loss or a hardware breakdown. The production servers take advantage of multiple drives where the information is kept and one disk is used for parity i.e. one bit is added to all the information copied on it, that makes it much easier to recover the content without any loss if a main drive breaks down. If you choose our backup service, the information will be saved on an independent machine which 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 guarantee that we will have a backup copy of your site content at all times. With this kind of setup your info will always be safe because it will be available on many disk drives.