RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which permits a system to take advantage of many hard drives as one single logical unit. Put simply, all drives are used as one and the information on all of them is the same. This type of a setup has two huge advantages over using just a single drive to save data - the first is redundancy, so if one drive breaks down, the information will be accessible from the others, and the second one is better performance since the input/output, or reading/writing operations will be spread among several drives. There're different RAID types in accordance with what number of drives are used, whether reading and writing are both handled from all drives concurrently, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, and many others. Based on the exact setup, the fault tolerance and the performance could differ.

RAID in Website Hosting

All the content that you upload to your new website hosting account will be saved on fast SSD drives that operate in RAID-Z. This configuration is built to work with the ZFS file system which runs on our cloud hosting platform and it adds another level of security for your content on top of the real-time checksum verification which ZFS uses to ensure the integrity of the data. With RAID-Z, the data is saved on several disks and at least 1 is a parity disk - whenever data is written on it, an additional bit is added, so in the event that any drive stops functioning for some reason, the stability of the info can be verified by recalculating its bits in accordance with what is kept on the production drives and on the parity one. With RAID-Z, the operation of our system will never be interrupted and it'll continue operating smoothly until the faulty drive is replaced and the information is synced on it.

RAID in Semi-dedicated Hosting

The info uploaded to any semi-dedicated hosting account is stored on SSD drives which function in RAID-Z. One of the drives in such a configuration is used for parity - any time data is cloned on it, an extra bit is added. If a disk turns out to be flawed, it will be removed from the RAID without disturbing the work of the websites as the data will load from the other drives, and when a new drive is added, the information that will be copied on it will be a mix between the data on the parity disk and data saved on the other hard disks in the RAID. This is done to ensure that the information that is being duplicated is correct, so once the new drive is rebuilt, it could be incorporated into the RAID as a production one. This is one more guarantee for the integrity of your info as the ZFS file system which runs on our cloud Internet hosting platform compares a special checksum of all copies of your files on the different drives to avoid any probability of silent data corruption.

RAID in VPS Hosting

The physical servers where we make virtual private server work with extremely fast SSD drives which will boost the speed of your sites 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 breakdown. The production servers employ many different drives where the information is kept and one disk is used for parity i.e. one bit is added to all of the data copied on it, that makes it easier to recover the website content without any loss in the event a main drive breaks down. In case you pick our backup service, your information will be kept on an independent machine which uses standard hard-disk drives and although 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 all of the time. With this kind of configuration your data will always be safe as it will be available on a lot of disk drives.