RAID, or Redundant Array of Independent Disks, is a technology of keeping data on a number hard drives which operate together as one logical unit. The drives could be physical or logical i.e. in the second case one single drive is split into different ones through virtualization software. In any case, the same data is stored on all the drives and the key advantage of employing this kind of a setup is that if a drive breaks down, the data shall still be available on the remaining ones. Employing a RAID also improves the performance because the input and output operations will be spread among a couple of drives. There are several types of RAID based on how many hard drives are used, whether writing is done on all of the drives in real time or just on one, and how the data is synced between the hard drives - whether it is written in blocks on one drive after another or it is mirrored from one on the others. All these factors suggest that the error tolerance as well as the performance between the various RAID types can differ.

RAID in Website Hosting

Our revolutionary cloud Internet hosting platform where all website hosting accounts are made uses fast SSD drives as an alternative to the standard HDDs, and they operate in RAID-Z. With this setup, multiple hard disk drives work together and at least one of them is a dedicated parity disk. Put simply, when data is written on the rest of the drives, it is cloned on the parity one adding an extra bit. This is performed for redundancy as even if some drive fails or falls out of the RAID for some reason, the info can be rebuilt and verified thanks to the parity disk and the data recorded on the other ones, which means that absolutely nothing will be lost and there won't be any service disorders. This is another level of security for your data in addition to the cutting-edge ZFS file system which uses checksums to ensure that all of the data on our servers is intact and is not silently corrupted.

RAID in VPS Servers

All VPS server accounts which we provide are made on physical servers that take advantage of SSD drives functioning in RAID. At least 1 drive is employed for parity - one additional bit is added to the information copied on it and if a main disk stops working, this bit makes it simpler to recalculate the bits of the files on the failed disk drive so that the right info is recovered on the new drive included in the RAID. Meanwhile, your sites will remain online because all the information will still load from at least one more hard drive. In case you add routine backups to your VPS package, a copy of the info will be stored on standard disk drives which also operate in RAID since we want to make certain that any site content you add will be safe and sound all of the time. Working with multiple drives in RAID for all the main and backup servers allows us to offer fast and reliable web hosting service.