RAID
Learn just what RAID is as well as how RAID systems work. Exactly what are the benefits associated with being hosted on a RAID-powered server?
RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which permits a system to employ multiple hard drives as a single logical unit. In other words, all of the drives are used as one and the info on all of them is identical. Such a setup has two key advantages over using just a single drive to store data - the first is redundancy, so in case one drive doesn't work, the info will be accessible through the others, and the second one is better performance since the input/output, or reading/writing operations will be spread among a number of drives. There're different RAID types in accordance with the number of drives are employed, if reading and writing are both executed from all of the drives at the same time, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Determined by the exact setup, the fault tolerance and the performance may differ.
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RAID in Website Hosting
The NVMe drives which our cutting-edge cloud Internet hosting platform uses for storage function in RAID-Z. This type of RAID is developed to work with the ZFS file system which runs on the platform and it employs the so-called parity disk - a specific drive where information kept on the other drives is copied with an additional bit added to it. If one of the disks stops functioning, your Internet sites shall continue working from the other ones and after we replace the problematic one, the information that will be duplicated on it will be rebuilt from what is stored on the rest of the drives along with the info from the parity disk. This is performed so as to be able to recalculate the elements of each and every file adequately and to authenticate the integrity of the data duplicated on the new drive. This is one more level of security for the info you upload to your
website hosting account in addition to the ZFS file system which analyzes a special digital fingerprint for every single file on all the drives in real time.
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RAID in Semi-dedicated Hosting
The NVMe drives which are used for keeping any content uploaded to the
semi-dedicated hosting accounts which we offer operate in RAID-Z. This is a special setup where one or more hard drives are employed for parity i.e. the system will add an extra bit to any data duplicated on this kind of a disk drive. If a disk fails and is replaced with a new one, what data will be cloned on the latter shall be a mix calculated between the data on the other hard disks and that on the parity one. This is done to guarantee that the info on the new drive shall be accurate. During the procedure, the RAID will continue functioning normally and the problematic drive won't impact the proper operation of your sites at all. Using NVMes in RAID-Z is an impressive addition to the ZFS file system that runs on our revolutionary cloud platform with regard to preserving the integrity of your files because ZFS uses unique digital identifiers called checksums so as to prevent silent data corruption.