Redundant Array of Independent Disks, or RAID, is a way of storing content on a number of hard disks simultaneously. A RAID might be software or hardware based on the hard drives that are used - physical or logical ones, however what’s common between them is that they all function as a single unit where your information is kept. The biggest advantage of using a RAID is redundancy as the information on all the drives will be identical all the time, so even if one of the drives fails for some reason, the data will still be present on the rest of the drives. The general performance is enhanced as well since the reading and writing processes could be split between a number of drives, so a single one can't be overloaded. There're different kinds of RAIDs where the efficiency and fault tolerance can vary depending on the specific setup - whether your data is written on all of the drives real-time or it is written on a single drive and then mirrored on another, the number of drives are used for the RAID, and many others.
RAID in Hosting
Any content that you upload to your new hosting account will be saved on fast SSD drives which function in RAID-Z. This setup is built to employ the ZFS file system that runs on our cloud Internet hosting platform and it adds one more level of security for your site content in addition to the real-time checksum authentication 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 is a parity disk - whenever data is written on it, an extra bit is added, so in case any drive stops working for some reason, the integrity of the information can be verified by recalculating its bits based on what is stored on the production drives and on the parity one. With RAID-Z, the functioning of our system will not be interrupted and it will continue operating effectively until the faulty drive is changed and the info is synchronized on it.
RAID in Semi-dedicated Hosting
The SSD drives that are used for storing any website content uploaded to the semi-dedicated hosting accounts which we provide function in RAID-Z. This is a specific configuration where one or more drives are employed for parity i.e. the system will include an additional bit to any data copied on such a disk drive. In case that a disk fails and is replaced with a new one, what information will be cloned on the latter shall be a combination calculated between the data on the remaining hard disks and that on the parity one. This is done to ensure that the information on the new drive shall be accurate. Throughout the procedure, the RAID will continue functioning adequately and the problematic drive won't impact the normal operation of your websites in any respect. Working with SSDs in RAID-Z is a fantastic addition to the ZFS file system that runs on our top-notch cloud platform with regards to preserving the integrity of your files because ZFS uses specific digital identifiers called checksums in order to avoid silent data corruption.
RAID in VPS Hosting
The physical servers where we create virtual private server work with fast SSD drives which will raise the speed of your websites considerably. The drives work in RAID to guarantee that you will not lose any info because of a power loss or a hardware breakdown. The production servers work with a variety of drives where the info is stored and one disk is used for parity i.e. one bit is added to all of the data copied on it, that makes it easier to recover the content without loss in the event a main drive fails. In case you choose our backup service, the information will be saved on an independent machine that uses standard hard-disk drives and despite the fact that there isn't a parity one in this case, they are also in a RAID to make sure that we will have a backup copy of your content all the time. With this kind of configuration your information will always be safe since it will be available on several drives.