RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that allows a system to use many hard drives as a single logical unit. To put it differently, all drives are used as one and the information on all of them is identical. This type of a setup has 2 key advantages over using just a single drive to store data - the first is redundancy, so if one drive stops working, the information will be accessible through the remaining ones, and the second one is improved performance as the input/output, or reading/writing operations will be spread among different drives. There are different RAID types depending on the number of drives are used, 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, etc. Based on the exact setup, the error tolerance and the performance could differ.

RAID in Cloud Web Hosting

The disk drives which we employ for storage with our ground-breaking cloud hosting platform are not the standard HDDs, but quick solid-state drives (SSD). They operate in RAID-Z - a special setup designed for the ZFS file system that we work with. All of the content that you add to the cloud web hosting account will be held on multiple drives and at least one of them shall be used as a parity disk. This is a specific drive where an extra bit is added to any content copied on it. In case a disk in the RAID fails, it will be changed without any service disturbances and the information will be rebuilt on the new drive by recalculating its bits thanks to the data on the parity disk along with that on the other disks. This is done in order to guarantee the integrity of the information and along with the real-time checksum authentication that the ZFS file system executes on all drives, you won't ever need to concern yourself with losing any information no matter what.

RAID in Semi-dedicated Hosting

The SSD drives which are used for storing any site content uploaded to the semi-dedicated hosting accounts which we offer function in RAID-Z. This is a specific configuration where one or more disk drives are used for parity i.e. the system will include an extra bit to any data copied on this kind of a hard drive. In the event that a disk fails and is replaced with another one, what info will be copied on the latter shall be a mix calculated between the data on the other disks and that on the parity one. This is done to make sure that the information on the new drive will be correct. Throughout the procedure, the RAID will continue operating adequately and the faulty drive will not have an effect on the proper operation of your sites at all. Working with SSDs 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 since ZFS uses specific digital identifiers referred to as checksums so as to avoid silent data corruption.

RAID in VPS Hosting

The physical servers where we create virtual private server use super fast SSD drives which will raise the speed of your Internet sites considerably. The disk drives work in RAID to make sure that you will not lose any data due to a power loss or a hardware breakdown. The production servers employ many different drives where the data is saved and one disk is used for parity i.e. one bit is added to all of the data copied on it, which makes it much easier to restore the site content without loss in case a main drive stops working. In case you take advantage of our backup service, your data will be stored on an independent machine that uses standard hard-disk drives and even though 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 website content all the time. With this type of configuration your information will always be safe as it will be available on multiple drives.