RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which permits a system to employ many hard drives as a single logical unit. To put it differently, all of the drives are used as one and the information on all of them is the same. Such a configuration has two major advantages over using a single drive to save data - the first is redundancy, so in the event that one drive breaks down, the info will be accessed through the others, and the second is improved performance since the input/output, or reading/writing operations will be distributed among different drives. There are different RAID types based on what amount of drives are used, whether reading and writing are both executed from all of the 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 fault tolerance and the performance vary.

RAID in Hosting

All the content which you upload to your new hosting account will be placed on fast SSD drives that operate in RAID-Z. This setup is built to work with the ZFS file system which runs on our cloud Internet hosting platform and it adds one more level of security for your content in addition to the real-time checksum authentication that ZFS uses to ensure the integrity of the data. With RAID-Z, the data is stored on a couple of disks and at least 1 is a parity disk - whenever data is recorded on it, an extra bit is added, so in case any drive fails for some reason, the stability of the info can be verified by recalculating its bits based on what is kept on the production hard disks and on the parity one. With RAID-Z, the operation of our system won't be interrupted and it will continue functioning effectively until the malfunctioning drive is changed and the information is synced on it.

RAID in Semi-dedicated Servers

The RAID type that we employ for the cloud hosting platform where your semi-dedicated server account shall be created is called RAID-Z. What is different about it is that at least one of the disks is employed as a parity drive. Put simply, whenever any kind of data is copied on this specific drive, one more bit is included to it and if a faulty disk is changed, the data that will be cloned on it is a mix of the data on the remaining hard drives in the RAID and that on the parity one. It's done this way to ensure that your data is intact. Throughout this process, your websites will be functioning normally because RAID-Z makes it possible for an entire drive to fail without service disruptions and it simply works by using one of the remaining ones as the main production drive. Using RAID-Z together with the ZFS file system that uses checksums to ensure that no data can get silently corrupted on our servers, you'll never need to worry about the integrity of your files.

RAID in VPS Servers

In case you take advantage of one of our VPS server plans, any content you upload will be stored on SSD drives that work in RAID. At least a single drive is used for parity so as to guarantee the integrity of the info. In simple terms, this is a special drive where info is copied with one bit added to it. In the event that a disk inside the RAID stops functioning, your Internet sites will continue working and when a new disk replaces the defective one, the bits of the data that will be cloned on it are calculated by using the healthy and the parity drives. That way, any possibility of corrupting data during the process is averted. We also use conventional hard disks that work in RAID for storing backups, so if you add this service to your VPS package, your website content will be kept on multiple drives and you'll never need to worry about its integrity even in the event of multiple drive breakdowns.