Redundant Array of Independent Disks, or RAID, is a method of keeping content on multiple hard drives at the same time. A RAID could be software or hardware depending on the hard drives which are used - physical or logical ones, but what is common between them is that they all work as a single unit where your information is kept. The top advantage of using a RAID is redundancy because the data on all of the drives will be exactly the same at all times, so even in case a drive fails for some reason, the data will still be available on the other drives. The overall performance is also better since the reading and writing processes could be split between a number of drives, so a single one can't be overloaded. There are different sorts of RAIDs where the performance and fault tolerance could differ according to the specific setup - whether information is written on all drives in real time or it's written on one drive and after that mirrored on another, what amount of drives are used for the RAID, etcetera.

RAID in Shared Hosting

The hard disks that we use for storage with our top-notch cloud web hosting platform are not the classic HDDs, but fast NVMes. They work in RAID-Z - a special setup intended for the ZFS file system that we employ. All of the content that you upload to your shared hosting account will be saved on multiple drives and at least 1 shall be used as a parity disk. This is a specific drive where an additional bit is included to any content copied on it. In the event that a disk in the RAID fails, it will be replaced without any service interruptions and the information will be recovered on the new drive by recalculating its bits thanks to the data on the parity disk along with that on the remaining disks. This is done so as to guarantee the integrity of the data and together with the real-time checksum validation which the ZFS file system executes on all drives, you'll never have to worry about the loss of any information no matter what.

RAID in Semi-dedicated Hosting

If you host your Internet sites within a semi-dedicated hosting account from our company, all the content you upload will be kept on NVMe drives which work in RAID-Z. With this kind of RAID, at least one of the hard drives is employed for parity - when data is synchronized between the disks, an additional bit is included in it on the parity one. The reasoning behind this is to ensure the integrity of the information that is cloned to a new drive in the event that one of the hard drives in the RAID stops functioning because the website 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 if a drive stops functioning, the system can easily switch to another one quickly without service interruptions of any kind. RAID-Z adds an additional level of protection for the content you upload on our cloud hosting platform together with the ZFS file system which uses unique checksums as a way to verify the integrity of every single file.

RAID in VPS

The physical servers where we make virtual private server use super fast NVMe drives which will increase the speed of your websites considerably. The disk drives operate in RAID to make sure that you won't lose any data due to a power loss or a hardware malfunction. The production servers use many different drives where the information is saved and one disk is used for parity i.e. one bit is added to all information copied on it, which makes it much easier to restore the site content without loss in case a main drive breaks down. In case you use our backup service, the data will be saved on an independent machine which uses standard hard-disk drives and despite the fact that there is no parity one in this case, they are also in a RAID to guarantee that we will have a backup of your site content all the time. With this configuration your info will always be safe since it will be available on multiple drives.