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 one single logical unit. To put it differently, all of the drives are used as one and the info on all of them is the same. This type of a configuration has two huge advantages over using just a single drive to keep data - the first is redundancy, so in case one drive doesn't work, the information will be accessed from the others, and the second one is better performance as the input/output, or reading/writing operations will be distributed among a number of drives. You can find different RAID types based on the number of drives are employed, if reading and writing are both handled from all the drives at the same time, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. Determined by the exact setup, the error tolerance and the performance vary.

RAID in Semi-dedicated Hosting

The RAID type which we use for the cloud web hosting platform where your semi-dedicated hosting account will be created is called RAID-Z. What is different about it is that at least 1 of the disks is employed as a parity drive. In simple terms, whenever any kind of data is copied on this specific hard drive, one more bit is added to it and in case a problematic disk is changed, the info which will be duplicated on it is a mix of the data on the remaining drives in the RAID and that on the parity one. This is done to make sure that your information is intact. Throughout this process, your sites will be working normally since RAID-Z makes it possible for an entire drive to fail without service interruptions and it simply uses one of the other ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to warrant that no data shall get silently corrupted on our servers, you won't ever need to worry about the integrity of your files.


If you take advantage of one of our virtual private server solutions, any content you upload will be saved on SSD drives that operate in RAID. At least 1 drive is used for parity so as to guarantee the integrity of your information. In simple terms, this is a special drive where info is copied with one bit added to it. In the event that a disk in the RAID fails, your sites will continue working and when a new disk takes the place of 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 possibility of corrupting data throughout the process is averted. We also use standard hard drives that function in RAID for storing backup copies, so should you include this service to your VPS plan, your website content will be saved on multiple drives and you will never need to worry about its integrity even in the event of multiple drive breakdowns.