RAID

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Redundant Array of Independent Disks, or RAID, is a method of saving content on multiple hard disks concurrently. A RAID can be software or hardware depending on the hard drives that are used - physical or logical ones, but what is common between them is that they all work as just a single unit where data is stored. The key advantage of employing a RAID is redundancy as the info on all of the drives shall be identical at all times, so even if some drive fails for some reason, the information will still be present on the remaining drives. The general performance is also enhanced as the reading and writing processes can be split between different drives, so a single one will not be overloaded. There are different kinds of RAIDs where the capabilities and fault tolerance could differ based on the particular setup - whether data is written on all the drives real-time or it is written on one drive and after that mirrored on another, what amount of drives are used for the RAID, etc.

RAID in Cloud Hosting

Any content that you upload to your new cloud hosting account will be held on quick NVMe drives that function in RAID-Z. This configuration is built to work with the ZFS file system which runs on our cloud hosting platform and it adds an additional level of security for your content on top of the real-time checksum authentication that ZFS uses to guarantee the integrity of the data. With RAID-Z, the data is saved on a couple of disks and at least one of them is a parity disk - whenever information is written on it, an additional bit is added, so in the event that any drive fails for some reason, the integrity of the data can be verified by recalculating its bits based on what is stored 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 effectively until the problematic drive is changed and the info is synced on it.

RAID in Semi-dedicated Hosting

The RAID type that we employ for the cloud web hosting platform where your semi-dedicated hosting account will be created is named RAID-Z. What is different about it is that at least 1 of the disks is employed as a parity drive. Put simply, whenever any data is cloned on this particular hard drive, one more bit is included to it and in the event that a malfunctioning disk is replaced, the info that will be cloned on it is a mix of the data on the remaining drives in the RAID and that on the parity one. This is done to make sure that the information is intact. During this process, your websites will be functioning normally because RAID-Z allows for an entire drive to fail without causing any service disturbances and it simply works by using one of the other ones as the main production drive. Employing RAID-Z together with the ZFS file system which uses checksums to ensure that no data shall get silently corrupted on our servers, you will not need to worry about the integrity of your files.

RAID in VPS Hosting

The NVMe drives that we use on the machines where we create virtual private servers function in RAID to ensure that any content which you upload will be available and intact at all times. At least 1 drive is used for parity - one bit of info is added to any data copied on it. If a main drive breaks down, it is changed and the information that will be cloned on it is calculated between the remaining drives and the parity one. That’s done to make sure that the right information is copied and that not a single file is corrupted as the new drive will be a part of the RAID afterwards. Also, we use hard disk drives operating in RAID on the backup servers, so in the event that you add this upgrade to your VPS plan, you will use an even more reliable hosting service because your content will be available on multiple drives irrespective of any sort of unexpected hardware malfunction.