RAID

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Redundant Array of Independent Disks, or RAID, is a method of storing content on multiple hard drives concurrently. A RAID might be software or hardware depending on the hard drives which are used - physical or logical ones, yet what is common between them is the fact that they all perform as just one single unit where info is kept. The biggest advantage of using a RAID is redundancy because the info on all the drives is exactly the same all of the time, so even in the event that some drive fails for some reason, the info will still be available on the rest of the drives. The overall performance is also better as the reading and writing processes could be split between various drives, so a single one won't be overloaded. There are different types of RAIDs where the effectiveness and fault tolerance could differ depending on the particular setup - whether info is written on all the drives real-time or it's written on a single drive and afterwards mirrored on another, what number of drives are used for the RAID, etcetera.

RAID in Shared Website Hosting

The drives that we employ for storage with our outstanding cloud web hosting platform are not the standard HDDs, but high-speed NVMes. They operate in RAID-Z - a special setup designed for the ZFS file system that we use. Any content that you add to the shared website hosting account will be stored on multiple hard drives and at least one of them shall be employed 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 changed with no service disruptions and the info will be rebuilt on the new drive by recalculating its bits thanks to the data on the parity disk plus that on the remaining disks. This is done so as to guarantee the integrity of the information and together with the real-time checksum verification which the ZFS file system performs on all drives, you'll never need to be concerned about losing any info no matter what.

RAID in Semi-dedicated Hosting

The info uploaded to any semi-dedicated hosting account is stored on NVMe drives which work in RAID-Z. One of the drives in this kind of a configuration is used for parity - each time data is cloned on it, an additional bit is added. In case a disk happens to be faulty, it will be taken out of the RAID without disturbing the work of the Internet sites because the data will load from the rest of the drives, and when a brand new drive is included, the info that will be duplicated on it will be a combination between the information on the parity disk and data stored on the other drives in the RAID. That is done in order to guarantee that the info which is being copied is correct, so as soon as the new drive is rebuilt, it could be incorporated into the RAID as a production one. This is an additional warranty for the integrity of your information as the ZFS file system which runs on our cloud hosting platform compares a special checksum of all the copies of your files on the separate drives to avoid any chance of silent data corruption.

RAID in VPS Web Hosting

The NVMe drives which we use on the machines where we generate virtual private servers function in RAID to make sure that any content which you upload will be available and intact at all times. At least 1 drive is employed for parity - one bit of information is added to any data cloned on it. In the event that a main drive breaks down, it is replaced and the information which will be copied on it is calculated between the rest of the drives and the parity one. This is done to ensure that the correct data is copied and that no file is corrupted since the new drive will be incorporated into the RAID afterwards. We also use hard disk drives operating in RAID on the backup servers, so in the event that you add this upgrade to your VPS package, you'll use an even more reliable web hosting service because your content will be available on multiple drives regardless of any sudden hardware malfunction.