Redundant Array of Independent Disks, or RAID, is a method of saving content on several hard disks concurrently. A RAID can be software or hardware depending on the hard drives which are used - physical or logical ones, yet what’s common between them is the fact that they all work as a single unit where your information is kept. The biggest advantage of employing a RAID is redundancy because the data on all drives will be the same all of the time, so even if some drive fails for some reason, the info will still be present on the rest of the drives. The general performance is enhanced as well since the reading and writing processes can be split between multiple drives, so a single one will not be overloaded. There are different sorts of RAIDs where the performance and fault tolerance may vary based on the exact setup - whether info is written on all the drives in real time or it is written on a single drive and afterwards mirrored on another, the number of drives are used for the RAID, etc.

RAID in Shared Hosting

All the content that you upload to your new shared hosting account will be placed on fast SSD drives which operate in RAID-Z. This setup is built to employ the ZFS file system that runs on our cloud web hosting platform and it adds one more level of security for your website content in addition to the real-time checksum validation that ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is stored on several disks and at least one is a parity disk - whenever data is written on it, an additional bit is added, so if any drive stops functioning for whatever reason, the integrity of the data can be verified by recalculating its bits based on what is stored on the production drives and on the parity one. With RAID-Z, the functioning of our system won't be interrupted and it will continue operating smoothly until the faulty drive is replaced and the information is synced on it.

RAID in Semi-dedicated Servers

The SSD drives that are used for storing any website content uploaded to the semi-dedicated server accounts that we provide operate in RAID-Z. This is a specific configuration where one or more disk drives are employed for parity i.e. the system will include an additional bit to any data cloned on this type of a drive. In case that a disk fails and is replaced with another one, what info will be cloned on the latter shall be a mix calculated between the data on the remaining drives and that on the parity one. This is done to guarantee that the information on the new drive shall be accurate. Throughout the process, the RAID will continue functioning normally and the malfunctioning drive won't have an impact on the proper operation of your websites in any respect. Working with SSDs in RAID-Z is a fantastic addition to the ZFS file system which runs on our cutting-edge cloud platform in terms of preserving the integrity of your files because ZFS uses unique digital identifiers identified as checksums in order to prevent silent data corruption.

RAID in VPS Servers

All VPS server accounts which our company provides are made on physical servers which take advantage of SSD drives working in RAID. At least one drive is employed for parity - one extra bit is added to the data cloned on it and in case a main disk breaks down, this bit makes it easier to recalculate the bits of the files on the damaged drive so that the right data is restored on the new drive added to the RAID. Meanwhile, your Internet sites will stay online as all the data will still load from at least one other disk drive. If you add routine backups to your VPS package, a copy of the info will be stored on standard disk drives that also work in RAID since we want to make sure that any type of content you upload will be risk-free all of the time. Using multiple hard drives in RAID for all the main and backup servers allows us to offer fast and reliable Internet hosting service.