Redundant Array of Independent Disks, or RAID, is a way of storing content on several hard disk drives simultaneously. A RAID might be software or hardware based on the hard drives which are used - physical or logical ones, however what’s common between them is the fact that they all work as one single unit where info is stored. The main advantage of using a RAID is redundancy since the data on all drives is exactly the same at all times, so even if one of the drives fails for whatever reason, the info will still be present on the rest of the drives. The general performance is also enhanced because the reading and writing processes can be split between a number of drives, so a single one will never be overloaded. There are different sorts of RAIDs where the capabilities and fault tolerance may vary based on the exact setup - whether information is written on all drives in real time or it's written on a single drive and afterwards mirrored on another, what amount of drives are used for the RAID, etcetera.
RAID in Shared Web Hosting
All the content which you upload to your new shared web hosting account will be saved on quick SSD drives which operate in RAID-Z. This setup is built to employ the ZFS file system which runs on our cloud Internet hosting platform and it adds another level of protection for your content in addition to the real-time checksum authentication that ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is saved on a number of disks and at least one is a parity disk - whenever info is recorded on it, an additional bit is added, so in the event that any drive fails for whatever reason, the stability of the info can be verified by recalculating its bits in accordance with 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 problematic drive is changed and the info is synced on it.
RAID in Semi-dedicated Servers
The SSD drives that are used for holding any site content uploaded to the semi-dedicated server accounts that we offer operate in RAID-Z. This is a special setup where one or more hard drives are used for parity i.e. the system will add an extra bit to any data copied on this kind of a disk drive. If a disk fails and is substituted with a new one, what info will be cloned on the latter shall be a mix calculated between the data on the other disks and that on the parity one. This is done to guarantee that the data on the new drive shall be accurate. During the procedure, the RAID will continue functioning adequately and the problematic drive won't affect the adequate operation of your sites by any means. Working with SSDs in RAID-Z is an outstanding addition to the ZFS file system which runs on our top-notch cloud platform with regard to preserving the integrity of your files since ZFS uses specific digital identifiers referred to as checksums so as to prevent silent data corruption.
RAID in VPS Servers
All VPS server accounts which our company provides are made on physical servers which use SSD drives operating in RAID. At least 1 drive is employed for parity - one extra bit is added to the data copied on it and if a main disk stops working, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the accurate info is recovered on the new drive added to the RAID. At the same time, your Internet sites will remain online because all the data will still load from at least one more disk drive. If you add regular backups to your VPS package, a copy of your information will be kept on standard hard drives which also work in RAID as we want to make sure that any sort of website content you upload will be risk-free all of the time. Working with multiple hard disks in RAID for all of the main and backup servers permits us to offer fast and reliable Internet hosting service.