RAID, which is an acronym of Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that allows a system to employ multiple hard drives as one single logical unit. Put simply, all drives are used as one and the information on all of them is identical. This type of a configuration has 2 huge advantages over using a single drive to store data - the first is redundancy, so in case one drive stops working, the information will be accessible from the others, and the second is better performance as the input/output, or reading/writing operations will be distributed among a number of drives. You can find different RAID types in accordance with what amount of drives are used, if reading and writing are both executed from all drives at the same time, if data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. Depending on the exact setup, the error tolerance and the performance could differ.

RAID in Cloud Website Hosting

The hard drives that we use for storage with our innovative cloud hosting platform are not the classic HDDs, but fast solid-state drives (SSD). They operate in RAID-Z - a special setup designed for the ZFS file system that we work with. All the content that you upload to your cloud website hosting account will be saved on multiple drives and at least 1 will be employed as a parity disk. This is a specific drive where an extra bit is included to any content copied on it. In case a disk in the RAID stops working, it'll be replaced with no service interruptions and the data will be recovered 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 in order to guarantee the integrity of the data and together with the real-time checksum verification that the ZFS file system performs on all drives, you won't ever need to be concerned about the loss of any information no matter what.

RAID in Semi-dedicated Servers

The RAID type that we employ for the cloud Internet hosting platform where your semi-dedicated server account will be created is named RAID-Z. What's different about it is that at least one of the disks is employed as a parity drive. Put simply, whenever any data is duplicated on this specific drive, one more bit is included to it and in the event that a defective disk is changed, the info that will be duplicated on it is a mix of the data on the remaining hard drives in the RAID and that on the parity one. We do this to make sure that your info is intact. During this process, your websites will be up and running normally as RAID-Z allows for a whole drive to fail without any service disruptions and it simply works by using one of the other ones as the main production drive. Using RAID-Z together with the ZFS file system that uses checksums to guarantee that no data shall get silently corrupted on our servers, you won't have to worry about the integrity of your files.

RAID in VPS Servers

All VPS server accounts that we provide are created on physical servers that use SSD drives functioning in RAID. At least one drive is used for parity - one extra bit is included in the data duplicated on it and if a main disk fails, this bit makes it easier to recalculate the bits of the files on the failed disk drive so that the right data is recovered on the new drive included in the RAID. Meanwhile, your Internet sites will still be online because all the data will still load from at least 1 other hard drive. If you add routine backups to your VPS package, a copy of the info will be stored on standard disk drives that also function in RAID because we would like to make sure that any site content you add will be protected at all times. Using multiple hard disks in RAID for all of the main and backup servers enables us to offer fast and reliable hosting service.