Redundant Array of Independent Disks, or RAID, is a way of keeping content on a number of hard disk drives at the same time. A RAID might be software or hardware based on the HDDs which are used - physical or logical ones, still what’s common between them is that they all work as a single unit where your information is saved. The biggest advantage of using a RAID is redundancy because the information on all drives is exactly the same all the time, 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 as the reading and writing processes will be split between various drives, so a single one won't be overloaded. There are different kinds of RAIDs where the effectiveness and fault tolerance may differ depending on the particular setup - whether information is written on all of the drives in 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 Cloud Web Hosting

All of the content which you upload to your new cloud web hosting account will be saved on fast SSD drives that function in RAID-Z. This configuration is built to employ the ZFS file system which runs on our cloud web hosting platform and it adds one more level of security for your content on top of the real-time checksum authentication which ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is saved on a number of disks and at least one of them is a parity disk - whenever data is recorded on it, an extra bit is added, so in case any drive stops functioning for whatever reason, the stability of the data can be verified by recalculating its bits in accordance with what is stored on the production hard drives and on the parity one. With RAID-Z, the operation of our system will never be interrupted and it'll continue functioning efficiently until the malfunctioning drive is changed and the information is synced on it.

RAID in Semi-dedicated Servers

The info uploaded to any semi-dedicated server account is saved on SSD drives that function in RAID-Z. One of the drives in this kind of a setup is used for parity - each time data is copied on it, an additional bit is added. If a disk happens to be problematic, it will be taken out of the RAID without disturbing the work of the websites since the data will load from the remaining drives, and when a new drive is added, the info that will be duplicated on it will be a blend between the information on the parity disk and data kept on the other hard drives in the RAID. This is done in order to ensure that the data which is being copied is accurate, so once the new drive is rebuilt, it could be included in the RAID as a production one. This is one more guarantee for the integrity of your info as the ZFS file system which runs on our cloud Internet hosting platform compares a special checksum of all the copies of the files on the different drives in order to avoid any probability of silent data corruption.

RAID in VPS Servers

All VPS server accounts that we offer are created on physical servers which employ SSD drives functioning in RAID. At least 1 drive is intended for parity - one extra bit is included in the data copied on it and in case a main disk fails, this bit makes it much simpler to recalculate the bits of the files on the damaged hard disk so that the correct data is recovered on the new drive included in the RAID. In the mean time, your Internet sites will remain online because all the info will still load from at least 1 more hard disk. In the event that you add regular backups to your VPS plan, a copy of the information will be saved on standard hard disks that also operate in RAID because we want to make certain that any sort of site content you upload will be risk-free at all times. Employing multiple hard drives in RAID for all the main and backup servers enables us to offer fast and reliable web hosting service.