RAID, or Redundant Array of Independent Disks, is a technology for saving data on several hard disk drives that function together as one logical unit. The drives can be physical or logical i.e. in the second case one single drive is divided into individual ones via virtualization software. Either way, the very same data is kept on all of the drives and the key advantage of employing such a setup is that if a drive fails, the data will remain available on the remaining ones. Employing a RAID also enhances the overall performance since the input and output operations will be spread among a few drives. There are several types of RAID dependant upon how many hard drives are used, whether writing is performed on all 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 it is mirrored from one on the others. All of these factors indicate that the fault tolerance and the performance between the various RAID types may vary.

RAID in Web Hosting

The cutting-edge cloud web hosting platform where all web hosting accounts are created uses super fast NVMe drives as an alternative to the traditional HDDs, and they operate in RAID-Z. With this configuration, several hard drives function together and at least one is a dedicated parity disk. Simply put, when data is written on the rest of the drives, it's cloned on the parity one adding an extra bit. This is performed for redundancy as even in case some drive fails or falls out of the RAID for whatever reason, the info can be rebuilt and verified thanks to the parity disk and the data stored on the other ones, which means that not a single thing will be lost and there will be no service interruptions. This is another level of protection for your information in addition to the advanced ZFS file system that uses checksums to ensure that all data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Hosting

The NVMe drives that are used for saving any website content uploaded to the semi-dedicated hosting accounts which we offer operate in RAID-Z. This is a specific setup where one or more disk drives are employed for parity i.e. the system will include an additional bit to any data copied on this type of a drive. In case that a disk fails and is replaced with another one, what information will be copied on the latter will be a combination calculated between the data on the other hard disks and that on the parity one. This is done to ensure that the information on the new drive will be accurate. Throughout the procedure, the RAID will continue functioning adequately and the malfunctioning drive will not affect the adequate operation of your sites in any respect. Using NVMes in RAID-Z is an outstanding addition to the ZFS file system which runs on our top-notch cloud platform with regards to preserving the integrity of your files since ZFS uses special digital identifiers identified as checksums to prevent silent data corruption.

RAID in VPS Hosting

All virtual private server accounts which we offer are made on physical servers that use NVMe drives operating in RAID. At least one drive is intended for parity - one additional bit is added to the info duplicated on it and in case a main disk breaks down, this bit makes it much simpler to recalculate the bits of the files on the damaged hard disk so that the correct information is restored on the new drive added to the RAID. In the mean time, your Internet sites will stay online as all the data will still load from at least one more hard drive. In case you add routine backups to your VPS plan, a copy of the info will be stored on standard hard drives that also work in RAID because we want to make certain that any sort of site content you upload will be protected all of the time. Using multiple hard drives in RAID for all of the main and backup servers permits us to offer fast and reliable web hosting service.