RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which enables a system to take advantage of multiple hard drives as a single logical unit. In other words, all drives are used as one and the information on all of them is identical. Such a setup has two huge advantages over using a single drive to save data - the first one is redundancy, so in case one drive fails, the info will be accessed through the remaining ones, and the second is improved performance because the input/output, or reading/writing operations will be spread among several drives. There are different RAID types based on what amount of drives are employed, if reading and writing are both performed from all the drives concurrently, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etc. Based on the particular setup, the error tolerance and the performance may vary.

RAID in Shared Hosting

All of the content which you upload to your new shared hosting account will be held on fast SSD drives that function in RAID-Z. This configuration is built to work with the ZFS file system that runs on our cloud Internet hosting platform and it adds one more level of protection for your website content on top of the real-time checksum verification that ZFS uses to ensure the integrity of the data. With RAID-Z, the data is stored on a number of disks and at least one of them is a parity disk - whenever data is recorded on it, an extra bit is added, so if any drive stops working for some reason, the stability of the information can be verified by recalculating its bits based on what is saved on the production drives and on the parity one. With RAID-Z, the functioning of our system will never be interrupted and it will continue working smoothly until the malfunctioning drive is replaced and the info is synced on it.

RAID in Semi-dedicated Servers

If you host your Internet sites within a semi-dedicated server account from our company, any content you upload will be kept on SSD drives which work in RAID-Z. With this type of RAID, at least 1 of the drives is employed for parity - when data is synced between the disks, an extra bit is included in it on the parity one. The idea behind this is to guarantee the integrity of the data that is cloned to a brand new drive in case one of the drives in the RAID breaks down because the site content being copied on the brand new disk is recalculated from the information on the standard drives and on the parity one. An additional advantage of RAID-Z is the fact that even in the event that a hard drive fails, the system could switch to another one right away without service disturbances of any type. RAID-Z adds one more level of protection for the content you upload on our cloud Internet hosting platform along with the ZFS file system that uses unique checksums as a way to authenticate the integrity of every single file.

RAID in VPS Servers

The physical servers where we create VPS server work with quick SSD drives that will boost the speed of your Internet sites considerably. The hard drives work in RAID to guarantee that you will not lose any data because of a power loss or a hardware malfunction. The production servers use many different drives where the data is saved and one disk is used for parity i.e. one bit is added to all the information copied on it, that makes it easier to recover the site content without loss in case a main drive stops working. If you pick our backup service, your information will be stored on an individual machine that uses standard hard-disk drives and even though there's no parity one in this case, they are also in a RAID to make sure that we will have a backup of your content at all times. With this particular configuration your information will always be safe since it will be available on multiple disk drives.