Redundant Array of Independent Disks, or RAID, is a method of storing content on several hard disk drives concurrently. A RAID might be software or hardware based on the hard drives that are used - physical or logical ones, however what is common between them is the fact that they all operate as just one single unit where info is stored. The key advantage of using a RAID is redundancy since the info on all drives shall be the same at all times, so even in case a drive fails for whatever reason, the info will still be present on the rest of the drives. The general performance will also improve because the reading and writing processes will be split between various drives, so a single one can't be overloaded. There are different types of RAIDs where the effectiveness and fault tolerance may differ based on the particular setup - whether your data is written on all drives real-time or it's written on a single drive and then mirrored on another, what amount of drives are used for the RAID, etcetera.

RAID in Hosting

The disk drives which we use for storage with our outstanding cloud hosting platform are not the standard HDDs, but fast solid-state drives (SSD). They work in RAID-Z - a special setup created for the ZFS file system which we employ. All of the content that you upload to your hosting account will be saved on multiple hard drives and at least 1 shall be used as a parity disk. This is a specific drive where an extra bit is added to any content copied on it. In the event that a disk in the RAID stops working, it'll be replaced without service disruptions and the info will be recovered on the new drive by recalculating its bits using the data on the parity disk along with that on the remaining disks. This is done in order to guarantee the integrity of the information and along with the real-time checksum verification that the ZFS file system performs on all drives, you will never need to concern yourself with the loss of any information no matter what.

RAID in Semi-dedicated Servers

If you host your Internet sites inside a semi-dedicated server account from our firm, any content that you upload will be held on SSD drives that work in RAID-Z. With this type of RAID, at least 1 of the disks is employed for parity - when data is synchronized between the drives, an extra bit is added to it on the parity one. The purpose behind this is to guarantee the integrity of the info which is copied to a new drive in case one of the drives in the RAID stops working as the content being copied on the new disk is recalculated from the info on the standard drives and on the parity one. Another advantage of RAID-Z is the fact that even if a disk drive stops functioning, the system can switch to another one quickly without service disturbances of any type. RAID-Z adds one more level of protection for the content that you upload on our cloud web hosting platform together with the ZFS file system that uses unique checksums as a way to verify the integrity of every single file.

RAID in VPS Servers

The physical servers where we create VPS server employ fast SSD drives which will boost the speed of your websites noticeably. The drives work in RAID to guarantee that you won't lose any info because of a power loss or a hardware failure. The production servers work with a variety of drives where the information is stored and one disk is used for parity i.e. one bit is added to all info copied on it, which makes it easier to restore the site content without any loss if a main drive fails. If you pick our backup service, your info will be kept on an individual machine that uses standard hard-disk drives and despite the fact that there's no parity one in this case, they are also in a RAID to make sure that we will have a backup copy of your website content all of the time. With this type of setup your data will always be safe since it will be available on a lot of disk drives.