RAID, or Redundant Array of Independent Disks, is a technology for saving data on multiple hard drives that work together as one logical unit. The drives could be physical or logical i.e. in the latter case one drive is divided into separate ones through virtualization software. In any case, the same data is saved on all the drives and the key advantage of using such a setup is that if a drive fails, the data will still be available on the other ones. Employing a RAID also improves the performance as the input and output operations will be spread among several drives. There are several kinds of RAID dependant upon how many drives are used, whether writing is done on all the drives in real time or just on one, and how the data is synchronized between the drives - whether it is written in blocks on one drive after another or it is mirrored from one on the others. All these factors suggest that the fault tolerance as well as the performance between the various RAID types could differ.

RAID in Cloud Hosting

All the content which you upload to your new cloud hosting account will be held on fast SSD drives that operate in RAID-Z. This configuration is built to employ the ZFS file system which runs on our cloud hosting platform and it adds one more level of security for your website content on top of the real-time checksum validation that ZFS uses to guarantee the integrity of the data. With RAID-Z, the info is saved on a couple of disks and at least one of them is a parity disk - whenever data is written on it, an extra bit is added, so if any drive stops functioning for some reason, the integrity of the information can be verified by recalculating its bits in accordance with what is kept on the production drives and on the parity one. With RAID-Z, the operation of our system will not be interrupted and it'll continue operating smoothly until the faulty drive is changed and the data is synced on it.

RAID in Semi-dedicated Hosting

The info uploaded to any semi-dedicated hosting account is saved on SSD drives which work in RAID-Z. One of the drives in such a configuration is used for parity - whenever data is copied on it, an extra bit is added. If a disk turns out to be flawed, it will be taken out of the RAID without disturbing the work of the Internet sites since the data will load from the remaining drives, and when a new drive is included, the info which will be copied on it will be a combination between the info on the parity disk and data kept on the other drives in the RAID. That is done in order to ensure that the info which is being copied is accurate, so once the new drive is rebuilt, it could be incorporated into the RAID as a production one. This is one more warranty for the integrity of your info as the ZFS file system that runs on our cloud web hosting platform compares a special checksum of all copies of the files on the separate drives so as to avoid any possibility of silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts that we provide are made on physical servers that employ SSD drives operating in RAID. At least one drive is used for parity - one additional bit is added to the info copied on it and if a main disk fails, this bit makes it easier to recalculate the bits of the files on the damaged disk drive so that the right information is recovered on the new drive added to the RAID. Meanwhile, your websites will remain online because all the data will still load from at least one other hard disk. In the event that you add regular backups to your VPS package, a copy of the data will be kept on standard hard drives which also function in RAID since we would like to make certain that any kind of website content you upload will be safe and sound at all times. Employing multiple hard disks in RAID for all of the main and backup servers permits us to offer fast and reliable hosting service.