Redundant Array of Independent Disks, or RAID, is a way of keeping content on multiple hard disks at the same time. A RAID might be software or hardware based on the drives which are used - physical or logical ones, still what is common between them is the fact that they all perform as just a single unit where your information is stored. The main advantage of using a RAID is redundancy because the info on all of the drives is the same at all times, so even if a drive fails for whatever reason, the data will still be available on the remaining drives. The general performance will also improve because the reading and writing processes could be split between a number of drives, so a single one won't be overloaded. There are different kinds of RAIDs where the efficiency and fault tolerance may differ according to the specific setup - whether info is written on all drives in real time or it's written on one drive and afterwards mirrored on another, what number of drives are used for the RAID, etcetera.

RAID in Shared Hosting

The disk drives which we use for storage with our outstanding cloud Internet hosting platform are not the standard HDDs, but super fast solid-state drives (SSD). They function in RAID-Z - a special setup intended for the ZFS file system which we employ. All the content that you add to your shared hosting account will be held on multiple hard drives and at least one of them shall be used as a parity disk. This is a specific drive where a further bit is included to any content copied on it. In case a disk in the RAID fails, it will be changed without any service disturbances and the data will be rebuilt on the new drive by recalculating its bits using the data on the parity disk along with that on the other disks. This is done to ensure the integrity of the info and along with the real-time checksum authentication that the ZFS file system runs on all drives, you won't ever need to worry about losing any info no matter what.

RAID in Semi-dedicated Hosting

The data uploaded to any semi-dedicated hosting account is stored on SSD drives that operate in RAID-Z. One of the drives in this kind of a configuration is used for parity - whenever data is copied on it, an additional bit is added. If a disk happens to be defective, it will be taken out of the RAID without disturbing the functioning of the Internet sites since the data will load from the rest of the drives, and when a new drive is added, the data which will be duplicated on it will be a blend between the information on the parity disk and data kept on the other hard drives in the RAID. That is done in order to ensure that the info that is being duplicated is accurate, so once the new drive is rebuilt, it could be incorporated into the RAID as a production one. This is one more warranty for the integrity of your information because the ZFS file system which runs on our cloud Internet hosting platform analyzes a unique checksum of all copies of the files on the various drives to be able to avoid any probability of silent data corruption.

RAID in VPS Hosting

All virtual private server accounts that we provide are created on physical servers which employ SSD drives operating in RAID. At least one drive is intended for parity - one additional bit is included in the data duplicated on it and if a main disk breaks down, this bit makes it much simpler to recalculate the bits of the files on the damaged drive so that the correct data is restored on the new drive included in the RAID. At the same time, your sites will stay online because all the information will still load from at least one other hard disk. If you add routine backups to your VPS package, a copy of your data will be kept on standard hard disks which also function in RAID because we would like to make sure that any website content you add will be risk-free at all times. Employing multiple hard disks in RAID for all of the main and backup servers enables us to offer fast and reliable hosting service.