RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which allows a system to take advantage of many hard drives as one single logical unit. To put it differently, all the drives are used as one and the information on all of them is identical. Such a setup has 2 huge advantages over using just a single drive to keep data - the first one is redundancy, so if one drive fails, the information will be accessible from the others, and the second one is improved performance as the input/output, or reading/writing operations will be distributed among several drives. There are different RAID types in accordance with how many drives are employed, if reading and writing are both handled from all of the drives at the same time, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Based on the exact setup, the error tolerance and the performance may differ.
RAID in Website Hosting
All content that you upload to your new website hosting account will be held on fast NVMe drives which operate in RAID-Z. This setup is built to use the ZFS file system which runs on our cloud web hosting platform and it adds an additional level of protection for your website content in addition to the real-time checksum verification which ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is stored on a couple 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 stops functioning for whatever reason, the stability of the info can be verified by recalculating its bits based on 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 will continue working effectively until the problematic drive is changed and the data is synced on it.
RAID in VPS Hosting
All virtual private server accounts which our company offers are created on physical servers which take advantage of NVMe drives working in RAID. At least one drive is intended for parity - one additional bit is included in the data copied on it and in case a main disk fails, this bit makes it much easier to recalculate the bits of the files on the damaged hard disk so that the accurate info is recovered on the new drive added to the RAID. Meanwhile, your websites will stay online since all the info will still load from at least one more hard drive. In case you add regular backups to your VPS package, a copy of your information will be saved on standard disk drives that also operate in RAID because we want to make certain that any kind of content you add will be safe and sound at all times. Using multiple drives in RAID for all main and backup servers permits us to offer fast and reliable Internet hosting service.
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