RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that permits a system to take advantage of several hard drives as a single logical unit. Put simply, all drives are used as one and the data on all of them is the same. This type of a setup has two major advantages over using a single drive to keep data - the first one is redundancy, so in the event that one drive doesn't work, the information will be accessed through the remaining ones, and the second one is better performance because the input/output, or reading/writing operations will be distributed among different drives. There are different RAID types depending on what number of drives are employed, whether reading and writing are both executed from all the drives concurrently, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Based on the particular setup, the error tolerance and the performance could differ.

RAID in Cloud Hosting

Our cutting-edge cloud web hosting platform where all cloud hosting accounts are generated uses super fast SSD drives rather than the traditional HDDs, and they work in RAID-Z. With this configuration, several hard disks work together and at least 1 is a dedicated parity disk. In simple terms, when data is written on the rest of the drives, it is duplicated on the parity one adding an extra bit. This is performed for redundancy as even if a drive fails or falls out of the RAID for whatever reason, the information can be rebuilt and verified using the parity disk and the data saved on the other ones, so not a thing will be lost and there will be no service disorders. This is an additional level of protection for your data in addition to the state-of-the-art 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 Internet sites in a semi-dedicated server account from our company, all the content that you upload will be stored on SSD drives which work in RAID-Z. With this type of RAID, at least one of the disks is used for parity - when data is synced between the disks, an additional bit is included in it on the parity one. The purpose behind this is to ensure the integrity of the info which is duplicated to a new drive in the event that one of the drives in the RAID fails as the content being copied on the brand new disk is recalculated from the info on the standard drives and on the parity one. An additional advantage of RAID-Z is the fact that even if a disk drive fails, the system can easily switch to a different one quickly without service disturbances of any sort. RAID-Z adds an extra level of security for the content you upload on our cloud hosting platform together with the ZFS file system that uses unique checksums to validate the integrity of each and every file.

RAID in VPS Servers

If you take advantage of one of our VPS server plans, any content which you upload will be kept on SSD drives which operate in RAID. At least one drive is used for parity to guarantee the integrity of your info. In simple terms, this is a special drive where information is copied with one bit added to it. In the event that a disk in the RAID stops functioning, your sites will continue working and when a new disk replaces the defective one, the bits of the data that will be duplicated on it are calculated by using the healthy and the parity drives. By doing this, any chance of corrupting data throughout the process is avoided. We also employ ordinary hard disks that work in RAID for storing backup copies, so should you add this service to your VPS plan, your website content will be kept on multiple drives and you will never need to worry about its integrity even in the event of multiple drive failures.