RAID, or Redundant Array of Independent Disks, is a technology of storing data on several hard drives that function together as one single logical unit. The drives could be physical or logical i.e. in the latter case one single drive is split into independent ones via virtualization software. In any case, the same data is stored on all the drives and the main advantage of employing this kind of a setup is that in case a drive fails, the data will remain available on the other ones. Employing a RAID also boosts the performance since the input and output operations will be spread among several drives. There are several types of RAID dependant upon how many hard disks are used, whether writing is done on all of the drives in real time or just on one, and how the information is synced between the drives - whether it is written in blocks on one drive after another or all of it is mirrored from one on the others. All of these factors show that the fault tolerance as well as the performance between the different RAID types can differ.

RAID in Cloud Website Hosting

The hard drives that we employ for storage with our ground-breaking cloud Internet hosting platform are not the traditional HDDs, but super fast solid-state drives (SSD). They operate in RAID-Z - a special setup intended for the ZFS file system which we work with. Any content that you upload to the cloud website hosting account will be held on multiple hard disks and at least 1 shall be used as a parity disk. This is a special drive where an additional bit is added to any content copied on it. If a disk in the RAID stops working, it will be replaced with no service interruptions and the info will be recovered on the new drive by recalculating its bits using the data on the parity disk plus that on the remaining disks. This is done so as to ensure the integrity of the info and together with the real-time checksum verification that the ZFS file system performs on all drives, you will never have to concern yourself with the loss of any information no matter what.

RAID in Semi-dedicated Hosting

The SSD drives that are used for keeping any site content uploaded to the semi-dedicated hosting accounts which we provide function in RAID-Z. This is a special setup where one or more drives are employed for parity i.e. the system will add an additional bit to any data cloned on this type of a disk drive. If a disk fails and is replaced with a new one, what information will be cloned on the latter shall be a mix calculated between the data on the remaining disks and that on the parity one. This is done to ensure that the info on the new drive will be correct. During the procedure, the RAID will continue functioning normally and the problematic drive won't affect the adequate operation of your sites by any means. Working with SSDs in RAID-Z is an excellent addition to the ZFS file system which runs on our advanced cloud platform with respect to preserving the integrity of your files since ZFS uses special digital identifiers known as checksums to prevent silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts that we offer are generated on physical servers which use SSD drives operating in RAID. At least 1 drive is used for parity - one additional bit is added to the data duplicated on it and if a main disk breaks down, this bit makes it simpler to recalculate the bits of the files on the damaged hard disk so that the accurate info is recovered on the new drive included in the RAID. Meanwhile, your Internet sites will stay online since all the info will still load from at least 1 other hard disk. If you add regular backups to your VPS package, a copy of the info will be saved on standard hard drives which also operate in RAID since we would like to make certain that any sort of website content you add will be safe and sound all of the time. Working with multiple drives in RAID for all of the main and backup servers allows us to offer fast and reliable web hosting service.