Redundant Array of Independent Disks, or RAID, is a method of keeping content on a number of hard drives concurrently. A RAID could be software or hardware depending on the hard drives that are used - physical or logical ones, yet what is common between them is the fact that they all perform as one single unit where information is kept. The key advantage of using a RAID is redundancy since the info on all drives will be the same at all times, so even in the event that a drive fails for whatever reason, the info will still be present on the other drives. The overall performance is also better because the reading and writing processes can be split between multiple drives, so a single one will never be overloaded. There're different types of RAIDs where the effectiveness and fault tolerance can vary depending on the exact setup - whether your data is written on all drives in real time or it's written on a single drive and afterwards mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Cloud Web Hosting

The advanced cloud web hosting platform where all cloud web hosting accounts are generated uses super fast SSD drives as an alternative to the standard HDDs, and they operate in RAID-Z. With this configuration, a number of hard disk drives operate together and at least one of them is a dedicated parity disk. In simple terms, when data is written on the other drives, it is cloned on the parity one adding an extra bit. This is done for redundancy as even in case some drive fails or falls out of the RAID for some reason, the information can be rebuilt and verified thanks to the parity disk and the data recorded on the other ones, thus not a thing will be lost and there will not be any service disorders. This is an additional level of protection for your data in addition to the cutting-edge ZFS file system which uses checksums to make sure that all the data on our servers is intact and is not silently corrupted.

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 called RAID-Z. What is different about it is that at least one of the disks is employed as a parity drive. Put simply, 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 replaced, the info which will be cloned on it is a mix of the data on the other hard disks in the RAID and that on the parity one. We do this to guarantee that your info is intact. During this process, your sites will be up and running normally since RAID-Z makes it possible for an entire drive to fail without service disturbances and it simply uses one of the remaining ones as the main production drive. Using RAID-Z together with the ZFS file system which uses checksums to ensure that no data shall get silently corrupted on our servers, you won't need to worry about the integrity of your files.

RAID in VPS Servers

All VPS server accounts which our company offers are made on physical servers that take advantage of SSD drives functioning in RAID. At least one drive is intended for parity - one additional bit is included in 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 damaged hard disk so that the correct info is restored on the new drive included in the RAID. At the same time, your sites will stay online because all the information will still load from at least one other hard drive. If you add routine backups to your VPS plan, a copy of the data will be stored on standard disk drives which also operate in RAID as we would like to make sure that any kind of site content you upload will be risk-free all the time. Employing multiple hard disks in RAID for all main and backup servers permits us to offer fast and reliable Internet hosting service.