RAID, which stands short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology that permits a system to employ several hard drives as one single logical unit. In other words, all drives are used as one and the info on all of them is identical. This type of a configuration has 2 major advantages over using a single drive to store data - the first is redundancy, so if one drive fails, the info will be accessible through the others, and the second one is better performance as the input/output, or reading/writing operations will be spread among a number of drives. You can find different RAID types based on the number of drives are employed, whether reading and writing are both performed 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. According to the particular setup, the fault tolerance and the performance could differ.

RAID in Shared Hosting

Our cutting-edge cloud hosting platform where all shared hosting accounts are made employs quick SSD drives as opposed to the traditional HDDs, and they operate in RAID-Z. With this configuration, multiple hard disk drives work together and at least 1 is a dedicated parity disk. Basically, when data is written on the other drives, it is copied on the parity one adding an extra bit. This is carried out for redundancy as even in case some drive fails or falls out of the RAID for whatever reason, the information can be rebuilt and verified using the parity disk and the data recorded on the other ones, therefore absolutely nothing will be lost and there will not be any service interruptions. This is an additional level of protection for your data together with the state-of-the-art ZFS file system that uses checksums to make sure that all data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Hosting

The data uploaded to any semi-dedicated hosting account is saved on SSD drives that work in RAID-Z. One of the drives in such a setup is used for parity - each time data is copied on it, an additional bit is added. If a disk happens to be flawed, it will be taken out of the RAID without disturbing the work of the Internet sites since the data will load from the other drives, and when a brand new drive is included, the data that will be copied on it will be a blend between the info on the parity disk and data saved on the other hard drives in the RAID. This is done to ensure that the information that is being duplicated is correct, so as soon as the new drive is rebuilt, it can be integrated into the RAID as a production one. This is an extra warranty for the integrity of your data 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 so as to avoid any chance of silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts which we provide are made on physical servers that employ SSD drives operating in RAID. At least one drive is intended for parity - one additional bit is added to the data duplicated on it and in case a main disk stops working, this bit makes it easier to recalculate the bits of the files on the failed hard disk so that the right information is recovered on the new drive added to the RAID. In the mean time, your sites will remain online because all the data will still load from at least 1 more hard drive. If you add routine backups to your VPS plan, a copy of the data will be stored on standard hard disks that also work in RAID because we would like to make certain that any sort of website content you add will be risk-free all the time. Working with multiple hard disks in RAID for all main and backup servers enables us to offer fast and reliable hosting service.