RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which makes it possible for a system to use a number of hard drives as a single logical unit. To put it differently, all of the drives are used as one and the information on all of them is identical. This type of a configuration has 2 key advantages over using a single drive to save data - the first one is redundancy, so if one drive fails, the info will be accessed through the others, and the second one is improved performance since the input/output, or reading/writing operations will be spread among multiple drives. There're different RAID types in accordance with what amount of drives are employed, whether reading and writing are both executed 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, and many others. According to the particular setup, the fault tolerance and the performance may vary.

RAID in Cloud Website Hosting

All content which you upload to your new cloud website hosting account will be placed on quick NVMe drives that function in RAID-Z. This setup is built to use the ZFS file system that runs on our cloud hosting platform and it adds another level of protection for your site content on top of the real-time checksum verification which ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is stored on several disks and at least 1 is a parity disk - whenever info is recorded on it, an extra bit is added, so in case any drive fails for some reason, the stability of the data can be verified by recalculating its bits based on what is stored on the production hard drives and on the parity one. With RAID-Z, the operation of our system will not be interrupted and it'll continue operating effectively until the faulty drive is replaced and the information is synced on it.

RAID in Semi-dedicated Servers

The information uploaded to any semi-dedicated server account is kept on NVMe drives that function in RAID-Z. One of the drives in this kind of a setup is used for parity - whenever data is copied on it, an extra bit is added. If a disk turns out to be problematic, it will be taken out of the RAID without interrupting the functioning of the sites because the data will load from the rest of the drives, and when a new drive is added, the data which will be cloned on it will be a blend between the info on the parity disk and data stored on the other drives in the RAID. This is done in order to guarantee that the information which is being duplicated is correct, so the moment the new drive is rebuilt, it could be included in the RAID as a production one. This is an extra warranty for the integrity of your info as the ZFS file system which runs on our cloud Internet hosting platform analyzes a unique checksum of all copies of the files on the different drives to be able to avoid any chance of silent data corruption.

RAID in VPS Servers

All VPS server accounts which our company provides are created on physical servers that take advantage of NVMe drives functioning in RAID. At least 1 drive is employed for parity - one additional bit is added to the information cloned on it and if a main disk fails, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the correct info is restored on the new drive included in the RAID. Meanwhile, your sites will remain online as all the info will still load from at least one more hard disk. If you add regular backups to your VPS package, a copy of the data will be stored on standard disk drives which also operate in RAID as we would like to make certain that any type of website content you add will be safe and sound all the time. Working with multiple drives in RAID for all main and backup servers permits us to offer fast and reliable web hosting service.