RAID, or Redundant Array of Independent Disks, is a technology for saving data on multiple hard disk drives which operate together as a single logical unit. The drives could be physical or logical i.e. in the second case a single drive is divided into individual ones through virtualization software. In any case, the same info is stored on all the drives and the key benefit of using this type of a setup is that in case a drive fails, the data will still be available on the remaining ones. Employing a RAID also enhances the overall performance because the input and output operations will be spread among a few drives. There are several types of RAID depending on how many hard disks are used, whether writing is performed on all of the drives in real time or just on a single 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. These factors indicate that the fault tolerance as well as the performance between the different RAID types can vary.

RAID in Cloud Website Hosting

The hard drives that we employ for storage with our innovative cloud Internet hosting platform are not the classic HDDs, but super fast NVMes. They work in RAID-Z - a special setup intended for the ZFS file system which we employ. All the content that you add to your cloud website hosting account will be stored on multiple hard drives and at least one of them will be used as a parity disk. This is a special drive where a further bit is added to any content copied on it. If a disk in the RAID stops working, it will be replaced with no service disruptions 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 data and together with the real-time checksum validation which the ZFS file system runs on all drives, you'll never need to be concerned about the loss of any info no matter what.

RAID in Semi-dedicated Hosting

The data uploaded to any semi-dedicated hosting account is kept on NVMe drives which work in RAID-Z. One of the drives in type of a configuration is used for parity - every time data is copied on it, an extra bit is added. In case a disk turns out to be flawed, it will be removed from the RAID without disturbing the operation of the sites since the data will load from the rest of the drives, and when a new drive is included, the info which will be duplicated on it will be a combination between the information on the parity disk and data kept on the other hard drives in the RAID. That is done to guarantee that the information that is being copied is correct, so as soon as the new drive is rebuilt, it can be included in the RAID as a production one. This is an additional warranty for the integrity of your information since the ZFS file system that runs on our cloud hosting platform compares a special checksum of all copies of your files on the different drives to be able to avoid any probability of silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts which our company offers are created on physical servers which employ NVMe drives operating in RAID. At least one drive is intended for parity - one extra bit is included in 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 disk drive so that the accurate data is recovered on the new drive added to the RAID. In the mean time, your websites will stay online because all the info will still load from at least one other hard disk. In case you add routine backups to your VPS package, a copy of the data will be stored on standard hard disks that also work in RAID as we would like to make certain that any type of content you add will be risk-free at all times. Using multiple drives in RAID for all the main and backup servers allows us to offer fast and reliable hosting service.