RAID, or Redundant Array of Independent Disks, is a technology of keeping data on several hard disk drives that work together as a single logical unit. The drives could be physical or logical i.e. in the second case a single drive is split into separate ones using virtualization software. Either way, exactly the same information is saved on all of the drives and the main advantage of employing this type of a setup is that if a drive stops working, the data will remain available on the remaining ones. Employing a RAID also enhances the performance because the input and output operations will be spread among a number of drives. There are several kinds of RAID depending on how many drives are used, whether writing is performed on all the drives in real time or just on a single one, and how the info is synced between the drives - whether it is recorded in blocks on one drive after another or it is mirrored from one on the others. All these factors mean that the error tolerance and the performance between the various RAID types could differ.

RAID in Shared Web Hosting

The hard drives that we employ for storage with our outstanding cloud hosting platform are not the classic HDDs, but super fast solid-state drives (SSD). They operate in RAID-Z - a special setup designed for the ZFS file system that we employ. Any content that you upload to the shared web hosting account will be saved on multiple hard disks and at least one of them will be used as a parity disk. This is a specific drive where a further bit is added to any content copied on it. If a disk in the RAID fails, it'll be changed without any service interruptions 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 to guarantee the integrity of the information and along with the real-time checksum validation that the ZFS file system performs on all drives, you won't ever need to worry about the loss of any info no matter what.

RAID in Semi-dedicated Hosting

In case you host your Internet sites within a semi-dedicated hosting account from our firm, all the content you upload will be held on SSD drives which operate in RAID-Z. With this form of RAID, at least one of the disks is employed for parity - when data is synced between the hard drives, an additional bit is added to it on the parity one. The reasoning behind this is to ensure the integrity of the info which is duplicated to a new drive in the event that one of the disks in the RAID stops working because the website content being copied on the new disk is recalculated from the info on the standard hard drives and on the parity one. An additional advantage of RAID-Z is that even if a disk drive stops working, the system could switch to another one right away without service disruptions of any type. RAID-Z adds an extra level of security for the content which you upload on our cloud web hosting platform together with the ZFS file system that uses unique checksums in order to verify the integrity of every single file.

RAID in VPS Hosting

All virtual private server accounts that our company provides are generated on physical servers which take advantage of SSD drives operating in RAID. At least one drive is intended for parity - one extra bit is added to the info duplicated on it and in case a main disk breaks down, this bit makes it simpler to recalculate the bits of the files on the failed disk drive so that the accurate data is restored on the new drive included in the RAID. At the same time, your websites will remain online since all the data will still load from at least 1 other disk drive. If you add routine backups to your VPS plan, a copy of your information will be saved on standard hard drives which also operate in RAID since we want to make sure that any kind of site content you add will be protected at all times. Using multiple drives in RAID for all main and backup servers allows us to offer fast and reliable hosting service.