RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that enables a system to employ a number of hard drives as a single logical unit. To put it differently, all the drives are used as one and the data on all of them is the same. Such a setup has two huge advantages over using a single drive to store data - the first is redundancy, so in case one drive fails, the info will be accessible through the others, and the second one is improved performance since the input/output, or reading/writing operations will be distributed among several drives. There're different RAID types in accordance with how many drives are employed, if reading and writing are both executed from all of the drives simultaneously, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. According to the particular setup, the fault tolerance and the performance vary.

RAID in Web Hosting

Our advanced cloud Internet hosting platform where all web hosting accounts are created uses quick NVMe drives rather than the traditional HDDs, and they work in RAID-Z. With this configuration, several hard disks operate together and at least a single one is a dedicated parity disk. In simple terms, when data is written on the remaining drives, it's duplicated 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 some reason, the information can be rebuilt and verified using the parity disk and the data saved on the other ones, thus not a single thing will be lost and there will be no service disorders. This is an additional level of protection for your info together with the cutting-edge ZFS file system which uses checksums to guarantee that all data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Servers

The NVMe drives which are used for holding any site content uploaded to the semi-dedicated server accounts that we offer function in RAID-Z. This is a specific setup where one or more drives are employed for parity i.e. the system will add an additional bit to any data duplicated on such a hard drive. In the event that a disk fails and is substituted with a new one, what information will be copied on the latter shall be a mix calculated between the data on the other drives and that on the parity one. This is done to make sure that the information on the new drive shall be correct. During the process, the RAID will continue working normally and the malfunctioning drive will not impact the proper operation of your Internet sites in any respect. Working with NVMes in RAID-Z is a fantastic addition to the ZFS file system that runs on our state-of-the-art cloud platform with respect to preserving the integrity of your files as ZFS uses specific digital identifiers named checksums so as to prevent silent data corruption.

RAID in VPS Servers

If you take advantage of one of our VPS server packages, any content which you upload will be kept on NVMe drives which work in RAID. At least 1 drive is intended for parity so as to guarantee the integrity of the data. In simple terms, this is a special drive where data is copied with one bit added to it. If a disk in the RAID stops functioning, your sites will continue working and when a new disk replaces the flawed one, the bits of the info that will be copied on it are calculated using the healthy and the parity drives. This way, any potential for corrupting data throughout the process is averted. We also use ordinary hard drives that operate in RAID for storing backups, so if you add this service to your VPS plan, your content will be kept on multiple drives and you won't ever have to worry about its integrity even in the event of multiple drive breakdowns.