Redundant Array of Independent Disks, or RAID, is a way of keeping content on several hard drives simultaneously. A RAID can be software or hardware depending on the drives that are used - physical or logical ones, but what’s common between them is that they all operate as a single unit where your information is saved. The key advantage of employing a RAID is redundancy because the info on all drives is the same all of the time, so even in the event that some drive fails for some reason, the information will still be present on the remaining drives. The general performance is also better since the reading and writing processes could be split between different drives, so a single one will not be overloaded. There're different sorts of RAIDs where the effectiveness and fault tolerance may vary depending on the specific setup - whether data is written on all drives in real time or it is written on one drive and then mirrored on another, what number of drives are used for the RAID, etcetera.

RAID in Shared Web Hosting

All the content which you upload to your new shared web hosting account will be stored on quick SSD drives which function in RAID-Z. This configuration is built to use the ZFS file system that runs on our cloud hosting platform and it adds an additional level of protection for your site content in addition to the real-time checksum validation 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 one of them is a parity disk - whenever info is written on it, an additional bit is added, so if any drive stops working for some reason, the integrity of the info can be verified by recalculating its bits in accordance with what is saved on the production hard drives and on the parity one. With RAID-Z, the operation of our system will not be interrupted and it'll continue functioning efficiently until the malfunctioning drive is replaced and the data is synchronized on it.

RAID in Semi-dedicated Servers

The RAID type that we use for the cloud hosting platform where your semi-dedicated server account will be created is known as RAID-Z. What is different about it is that at least one of the disks is employed as a parity drive. Simply put, whenever any kind of data is duplicated on this particular disk drive, one more bit is included to it and in case a faulty disk is changed, the data that will be duplicated on it is a mix of the data on the remaining hard disks in the RAID and that on the parity one. We do this to guarantee that your data is intact. Throughout this process, your websites will be functioning normally as RAID-Z makes it possible for a whole drive to fail without causing any service disturbances and it simply works by using one of the other ones as the main production drive. Using RAID-Z together with the ZFS file system which uses checksums to ensure that no data can get silently corrupted on our servers, you will never need to worry about the integrity of your files.

RAID in VPS Servers

All VPS server accounts which we provide are made on physical servers that use SSD drives functioning in RAID. At least 1 drive is employed for parity - one extra bit is added to the info copied on it and if a main disk breaks down, this bit makes it simpler to recalculate the bits of the files on the failed hard disk so that the accurate information is restored on the new drive added to the RAID. In the mean time, your Internet sites will stay online because all the info will still load from at least one other disk drive. In the event that you add regular backups to your VPS plan, a copy of the information will be stored on standard hard drives which also operate in RAID as we would like to make certain that any kind of website content you add will be risk-free all the time. Employing multiple hard drives in RAID for all of the main and backup servers enables us to offer fast and reliable hosting service.