RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that enables a system to use multiple hard drives as one single logical unit. Put simply, all the drives are used as one and the information on all of them is identical. This type of a configuration has 2 major advantages over using just a single drive to save data - the first is redundancy, so in the event that one drive stops working, the data will be accessible from the others, and the second one is improved performance since the input/output, or reading/writing operations will be distributed among several drives. You can find different RAID types depending on how many drives are used, whether reading and writing are both handled from all the drives concurrently, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. Depending on the particular setup, the error tolerance and the performance vary.

RAID in Cloud Website Hosting

The hard disks that we employ for storage with our top-notch cloud Internet hosting platform are not the classic HDDs, but fast solid-state drives (SSD). They function in RAID-Z - a special setup intended for the ZFS file system which we work with. All of the content that you upload to the cloud website hosting account will be kept on multiple drives and at least one will be employed as a parity disk. This is a specific drive where an extra bit is included to any content copied on it. In the event that a disk in the RAID fails, it'll be replaced without any service disturbances and the data will be recovered on the new drive by recalculating its bits thanks to the data on the parity disk plus that on the remaining disks. This is done to ensure the integrity of the information and along with the real-time checksum validation that the ZFS file system executes on all drives, you won't ever have to concern yourself with losing any info no matter what.

RAID in Semi-dedicated Hosting

The SSD drives that are used for holding any site content uploaded to the semi-dedicated hosting accounts which we offer function in RAID-Z. This is a specific setup where one or more hard drives are employed for parity i.e. the system will include an extra bit to any data copied on this kind of a disk drive. In case that a disk fails and is substituted with a new one, what info will be cloned on the latter shall be a combination calculated between the data on the other drives and that on the parity one. This is done to guarantee that the info on the new drive will be correct. Throughout the process, the RAID will continue working adequately and the problematic drive will not affect the normal operation of your websites in any way. Using SSDs in RAID-Z is an outstanding addition to the ZFS file system that runs on our cutting-edge cloud platform with regard to preserving the integrity of your files as ZFS uses special digital identifiers named checksums to avoid silent data corruption.

RAID in VPS

In case you employ one of our virtual private server packages, any content you upload will be stored on SSD drives that operate in RAID. At least a single drive is intended for parity so as to guarantee the integrity of the info. In simple terms, this is a special drive where info is copied with one bit added to it. In the event that a disk inside the RAID breaks down, your sites will continue working and when a new disk takes the place of the malfunctioning one, the bits of the data that will be copied on it are calculated using the healthy and the parity drives. This way, any probability of corrupting data during the process is prevented. We also use regular hard disk drives which operate 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 have to worry about its integrity even in the event of multiple drive breakdowns.