Redundant Array of Independent Disks, or RAID, is a method of keeping content on several hard disk drives at the same time. A RAID can be software or hardware based on the drives that are used - physical or logical ones, but what is common between them is that they all operate as just one single unit where your information is stored. The main advantage of employing a RAID is redundancy as the information on all of the drives will be exactly the same all the time, so even in case some drive fails for some reason, the information will still be present on the remaining drives. The general performance is also enhanced since the reading and writing processes will be split between various drives, so a single one will never be overloaded. There are different types of RAIDs where the performance and fault tolerance may vary based on the specific setup - whether data is written on all of the drives real-time or it's written on one drive and then mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Shared Hosting

The hard drives which we employ for storage with our innovative cloud Internet hosting platform are not the traditional HDDs, but extremely fast solid-state drives (SSD). They operate in RAID-Z - a special setup designed for the ZFS file system that we employ. Any content that you upload to your shared hosting account will be saved on multiple hard drives and at least one of them will be employed as a parity disk. This is a specific drive where an additional bit is added to any content copied on it. In case a disk in the RAID stops functioning, it will be replaced without service disruptions and the information will be rebuilt on the new drive by recalculating its bits thanks to the data on the parity disk along with that on the other disks. This is done in order to ensure the integrity of the information and along with the real-time checksum verification which the ZFS file system runs on all drives, you will never need to be concerned about the loss of any info no matter what.

RAID in Semi-dedicated Hosting

In case you host your sites in a semi-dedicated hosting account from our firm, all of the content you upload will be saved on SSD drives which work in RAID-Z. With this kind of RAID, at least one 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 reasoning behind this is to guarantee the integrity of the info which is cloned to a new drive in case one of the disks in the RAID breaks down because the site content being copied on the brand 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 can easily switch to another one instantly without service interruptions of any type. RAID-Z adds an extra level of protection for the content which you upload on our cloud Internet hosting platform together with the ZFS file system that uses unique checksums in order to verify the integrity of every single file.

RAID in VPS

The physical servers where we make virtual private server employ quick SSD drives which will raise the speed of your Internet sites considerably. The hard disks function in RAID to make sure that you won't lose any info as a result of a power loss or a hardware breakdown. The production servers take advantage of many different drives where the info is stored and one disk is used for parity i.e. one bit is added to all of the info copied on it, which makes it easier to restore the site content without any loss in case a main drive stops working. In case you choose our backup service, the information will be stored on a separate machine that uses standard hard-disk drives and though there is no parity one in this case, they are also in a RAID to ensure that we will have a backup of your website content all of the time. With this setup your info will always be safe since it will be available on several drives.