RAID, or Redundant Array of Independent Disks, is a technology of keeping data on multiple hard disks which work together as a single logical unit. The drives can be physical or logical i.e. in the latter case one single drive is split into different ones using virtualization software. Either way, exactly the same data is stored on all the drives and the key advantage of using this kind of a setup is that in case a drive breaks down, the data will still be available on the other ones. Using a RAID also boosts the performance as the input and output operations will be spread among a few drives. There are several types of RAID based on how many hard drives are used, whether writing is done on all drives in real time or just on one, and how the info is synchronized between the drives - whether it is recorded in blocks on one drive after another or all of it is mirrored from one on the others. These factors show that the error tolerance as well as the performance between the various RAID types may vary.

RAID in Shared Website Hosting

The hard drives that we use for storage with our top-notch cloud hosting platform are not the traditional HDDs, but extremely fast solid-state drives (SSD). They work in RAID-Z - a special setup intended for the ZFS file system that we employ. Any content that you add to the shared website hosting account will be held on multiple drives and at least one of them will be employed as a parity disk. This is a special drive where a further bit is included to any content copied on it. If a disk in the RAID stops functioning, it will be replaced without any service disturbances and the information will be rebuilt on the new drive by recalculating its bits using the data on the parity disk along with that on the remaining disks. This is done to ensure the integrity of the information and along with the real-time checksum validation which the ZFS file system runs on all drives, you won't ever need to concern yourself with the loss of any info no matter what.

RAID in Semi-dedicated Servers

If you host your websites in a semi-dedicated server account from our company, any content you upload will be held on SSD drives which operate in RAID-Z. With this form of RAID, at least 1 of the drives is used for parity - when data is synchronized between the drives, an extra bit is added to it on the parity one. The purpose behind this is to guarantee the integrity of the information which is duplicated to a brand new drive if one of the hard drives in the RAID stops working since the content being copied on the new disk is recalculated from the data on the standard disk drives and on the parity one. Another advantage of RAID-Z is that even in the event that a hard drive stops working, the system could switch to a different one promptly without service disturbances of any type. RAID-Z adds an additional level of security for the content you upload on our cloud hosting platform in addition to the ZFS file system that uses unique checksums so as to verify the integrity of each file.

RAID in VPS Servers

All VPS server accounts which our company offers are made on physical servers which employ SSD drives working in RAID. At least one drive is intended for parity - one extra bit is included in the information copied on it and in case a main disk breaks down, this bit makes it easier to recalculate the bits of the files on the damaged hard disk so that the correct info is restored on the new drive added to the RAID. In the mean time, your Internet sites will still be online because all the data will still load from at least one other drive. If you add routine backups to your VPS plan, a copy of your info will be kept on standard disk drives that also operate in RAID since we would like to make sure that any sort of content you add will be risk-free at all times. Employing multiple hard drives in RAID for all the main and backup servers enables us to offer fast and reliable Internet hosting service.