RAID in Hosting
Our state-of-the-art cloud web hosting platform where all hosting accounts are generated employs quick SSD drives as an alternative to the traditional HDDs, and they function in RAID-Z. With this setup, a number of hard disk drives operate together and at least one of them is a dedicated parity disk. Basically, when data is written on the other drives, it's copied on the parity one adding an extra bit. This is done for redundancy as even if some drive fails or falls out of the RAID for some reason, the info can be rebuilt and verified thanks to the parity disk and the data stored on the other ones, so not a single thing will be lost and there won't be any service disorders. This is another level of security for your information in addition to the state-of-the-art ZFS file system that uses checksums to guarantee that all of the data on our servers is intact and is not silently corrupted.
RAID in VPS Servers
All VPS server accounts which our company provides are generated on physical servers which take advantage of SSD drives working in RAID. At least one drive is used for parity - one additional bit is included in the info duplicated on it and if a main disk fails, this bit makes it simpler to recalculate the bits of the files on the failed hard disk so that the correct information is restored on the new drive included in the RAID. In the mean time, your sites will stay online because all the data will still load from at least one more hard disk. In case you add routine backups to your VPS package, a copy of your info will be stored on standard hard drives that also work in RAID because we want to make certain that any kind of content you add will be protected all of the time. Using multiple hard drives in RAID for all of the main and backup servers enables us to offer fast and reliable hosting service.