RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which makes it possible for a system to employ multiple hard drives as a single logical unit. Put simply, all the drives are used as one and the info on all of them is identical. This kind of a configuration has two huge advantages over using just a single drive to keep data - the first is redundancy, so in case one drive doesn't work, the data will be accessible from the others, and the second is improved performance because the input/output, or reading/writing operations will be distributed among different drives. You can find different RAID types depending on what amount of drives are used, if reading and writing are both handled from all of the drives at the same time, whether data is written in blocks on one drive after another or is mirrored between drives in the same time, etcetera. Based on the particular setup, the fault tolerance and the performance may vary.

RAID in Shared Web Hosting

Our cutting-edge cloud Internet hosting platform where all shared web hosting accounts are generated uses super fast SSD drives as an alternative to the traditional HDDs, and they operate in RAID-Z. With this configuration, multiple hard disk drives function together and at least a single one is a dedicated parity disk. In simple terms, when data is written on the rest of the drives, it is cloned on the parity one adding an extra bit. This is performed for redundancy as even if a drive fails or falls out of the RAID for some reason, the data can be rebuilt and verified using the parity disk and the data stored on the other ones, thus not a single thing will be lost and there won't be any service interruptions. This is another level of protection for your info together with the advanced ZFS file system that uses checksums to ensure that all of the data on our servers is intact and is not silently corrupted.

RAID in Semi-dedicated Hosting

If you host your Internet sites inside a semi-dedicated hosting account from our firm, all of the content which you upload will be held on SSD drives which work in RAID-Z. With this type of RAID, at least 1 of the disks is used for parity - when data is synced between the disks, an additional bit is added to it on the parity one. The purpose behind this is to ensure the integrity of the information which is duplicated to a brand new drive in the event that one of the disks in the RAID breaks down as the website content being copied on the new disk is recalculated from the data on the standard disk drives and on the parity one. An additional advantage of RAID-Z is that even in the event that a disk drive fails, the system can switch to a different one quickly without service interruptions of any sort. RAID-Z adds one more level of protection for the content which you upload on our cloud Internet hosting platform in addition to the ZFS file system which uses unique checksums in order to validate the integrity of each file.

RAID in VPS

The physical servers where we generate virtual private server use quick SSD drives which will raise the speed of your websites noticeably. The hard disks function in RAID to ensure that you will not lose any info because of a power loss or a hardware malfunction. The production servers employ many different drives where the data is stored and one disk is used for parity i.e. one bit is added to all the data copied on it, that makes it much easier to restore the website content without loss if a main drive stops working. If you choose our backup service, your data will be saved on an individual machine which uses standard hard-disk drives and although there isn't a parity one in this case, they are also in a RAID to guarantee that we will have a backup copy of your website content all the time. With this configuration your info will always be safe as it will be available on a lot of disk drives.