Redundant Array of Independent Disks, or RAID, is a method of saving content on a number of hard disks simultaneously. A RAID can be software or hardware depending on the HDDs that are used - physical or logical ones, still what is common between them is that they all perform as just a single unit where your information is saved. The key advantage of using a RAID is redundancy because the data on all the drives will be identical all the time, so even if one of the drives fails for whatever reason, the data will still be available on the other drives. The overall performance is also enhanced because the reading and writing processes can be split between different drives, so a single one will not be overloaded. There're different types of RAIDs where the performance and fault tolerance may vary based on the particular setup - whether your data is written on all the drives in real time or it's written on a single drive and after that mirrored on another, what number of drives are used for the RAID, and so on.

RAID in Website Hosting

All of the content that you upload to your new website hosting account will be saved on quick SSD drives which work in RAID-Z. This configuration is built to employ the ZFS file system which runs on our cloud Internet hosting platform and it adds one more level of protection for your website content on top of the real-time checksum validation which ZFS uses to ensure the integrity of the data. With RAID-Z, the information is stored on several disks and at least one is a parity disk - whenever information is written on it, an additional bit is added, so if any drive stops functioning for whatever reason, the stability of the info can be verified by recalculating its bits in accordance with what is saved on the production hard disks and on the parity one. With RAID-Z, the operation of our system won't be interrupted and it'll continue functioning smoothly until the problematic drive is changed and the data is synchronized on it.

RAID in Semi-dedicated Servers

If you host your websites in a semi-dedicated server account from our company, all of the content which you upload will be kept on SSD drives that work in RAID-Z. With this kind of RAID, at least 1 of the drives is used for parity - when data is synced between the disks, an extra bit is added to it on the parity one. The purpose behind this is to ensure the integrity of the info which is cloned to a new drive in the event that one of the hard drives in the RAID fails because the content being copied on the new disk is recalculated from the information on the standard drives and on the parity one. Another advantage of RAID-Z is that even in case a disk drive stops functioning, the system can easily switch to another one instantly without service disturbances of any kind. RAID-Z adds an extra level of protection for the content which you upload on our cloud Internet hosting platform in addition to the ZFS file system that uses unique checksums in order to validate the integrity of every single file.