RAID, which is short for Redundant Array of Independent Disks, is a software or hardware storage virtualization technology which enables a system to take advantage of a number of hard drives as one 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 2 key advantages over using just a single drive to keep data - the first one is redundancy, so in case one drive breaks down, the info will be accessible from the remaining ones, and the second is better performance because the input/output, or reading/writing operations will be distributed among multiple drives. There are different RAID types in accordance with what amount of drives are employed, whether reading and writing are both done from all 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, etc. According to the particular setup, the error tolerance and the performance may vary.

RAID in Cloud Website Hosting

Our advanced cloud web hosting platform where all cloud website hosting accounts are generated uses fast SSD drives as opposed to the traditional HDDs, and they operate in RAID-Z. With this configuration, several hard disk drives operate together and at least one is a dedicated parity disk. Basically, 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 in case a drive fails or falls out of the RAID for whatever reason, the info can be rebuilt and verified using the parity disk and the data saved on the other ones, which means that not a thing will be lost and there won't be any service disturbances. This is an additional level of security for your info in addition to the state-of-the-art ZFS file system which uses checksums to ensure that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Hosting

The information 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 - every 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 interrupting the work of the Internet sites as the data will load from the other drives, and when a new drive is included, the info that will be cloned on it will be a blend between the data on the parity disk and data stored on the other hard disks in the RAID. That is done in order to guarantee that the data which is being copied is correct, so as soon as the new drive is rebuilt, it could be included in the RAID as a production one. This is an extra guarantee for the integrity of your info since the ZFS file system which runs on our cloud Internet hosting platform analyzes a special checksum of all copies of your files on the separate drives to be able to avoid any chance of silent data corruption.

RAID in VPS

All virtual private server accounts that our company provides are generated on physical servers that take advantage of SSD drives functioning in RAID. At least 1 drive is used for parity - one additional bit is included in the info copied on it and in case a main disk breaks down, this bit makes it much easier to recalculate the bits of the files on the failed hard disk so that the accurate information is recovered on the new drive added to the RAID. Meanwhile, your sites will remain online since all the info will still load from at least 1 more drive. In the event that you add routine backups to your VPS plan, a copy of the information will be stored on standard disk drives which also operate in RAID because we want to make certain that any content you upload will be protected all the time. Employing multiple drives in RAID for all main and backup servers allows us to offer fast and reliable Internet hosting service.