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RAID, or Redundant Array of Independent Disks, is a technology of keeping data on a number hard disks that operate together as one logical unit. The drives could be physical or logical i.e. in the aforementioned case one drive is divided into individual ones via virtualization software. Either way, the very same information is stored on all of the drives and the main advantage of employing this kind of a setup is that if a drive breaks down, the data will still be available on the remaining ones. Having a RAID also boosts the overall performance as the input and output operations will be spread among a couple of drives. There are several kinds of RAID based on how many hard disks are used, whether writing is done on all the drives in real time or just on one, and how the information is synchronized between the hard drives - whether it's recorded in blocks on one drive after another or all of it is mirrored from one on the others. All of these factors imply that the fault tolerance as well as the performance between the different RAID types may differ.

RAID in Shared Web Hosting

The drives which we use for storage with our outstanding cloud web hosting platform are not the standard HDDs, but extremely fast solid-state drives (SSD). They function in RAID-Z - a special setup intended for the ZFS file system that we use. All the content that you upload to your shared web hosting account will be kept on multiple drives and at least one of them will be used as a parity disk. This is a special drive where an additional bit is included to any content copied on it. If a disk in the RAID stops functioning, it'll be replaced without any service interruptions and the info 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 so as to ensure the integrity of the info and along with the real-time checksum verification which the ZFS file system executes on all drives, you'll never have to concern yourself with losing any info no matter what.

RAID in Semi-dedicated Servers

If you host your websites in a semi-dedicated server account from our company, any content which you upload will be saved on SSD drives which operate in RAID-Z. With this kind of RAID, at least 1 of the hard disks is employed for parity - when data is synced between the drives, an additional bit is included in it on the parity one. The reasoning behind this is to guarantee the integrity of the info which is cloned to a new drive in case one of the drives in the RAID stops functioning because the site content being copied on the brand new disk is recalculated from the information on the standard hard drives and on the parity one. Another advantage of RAID-Z is the fact that even if a hard drive stops functioning, the system can switch to a different one quickly without service disturbances of any type. RAID-Z adds an extra level of security for the content that you upload on our cloud hosting platform in addition to the ZFS file system that uses unique checksums so as to verify the integrity of each and every file.

RAID in VPS Servers

The physical servers where we create VPS server employ quick SSD drives which will increase the speed of your Internet sites substantially. The hard drives work in RAID to guarantee that you won't lose any info as a result of a power loss or a hardware breakdown. The production servers work with a variety of drives where the information is saved and one disk is used for parity i.e. one bit is added to all information copied on it, that makes it easier to restore the content without any loss if a main drive breaks down. If you take advantage of our backup service, your info will be stored on an individual machine that uses standard hard-disk drives and though there's no parity one in this case, they are also in a RAID to guarantee that we will have a backup of your website content all of the time. With this configuration your information will always be safe because it will be available on several drives.