RAID, or Redundant Array of Independent Disks, is a technology for saving data on a number hard disks that operate together as one single logical unit. The drives can be physical or logical i.e. in the aforementioned case one drive is split into different ones through virtualization software. In either case, the very same information is stored on all drives and the basic advantage of using this type of a setup is that in case a drive fails, the data will still be available on the other ones. Using a RAID also boosts the overall performance as the input and output operations will be spread among a number of drives. There are several types of RAID dependant upon how many hard disks are used, whether writing is performed on all of the drives in real time or just on one, and how the info is synced between the hard drives - whether it's written in blocks on one drive after another or all of it is mirrored from one on the others. These factors mean that the error tolerance and the performance between the various RAID types could differ.

RAID in Cloud Website Hosting

Our advanced cloud Internet hosting platform where all cloud website hosting accounts are created uses quick SSD drives rather than the classic HDDs, and they work in RAID-Z. With this configuration, several hard disks function together and at least 1 is a dedicated parity disk. Put simply, when data is written on the other drives, it's duplicated on the parity one adding an extra bit. This is done for redundancy as even if some drive fails or falls out of the RAID for whatever reason, the info can be rebuilt and verified thanks to the parity disk and the data stored on the other ones, so practically nothing will be lost and there won't be any service disorders. This is an additional level of security for your information together with the advanced ZFS file system that uses checksums to ensure that all the data on our servers is undamaged and is not silently corrupted.

RAID in Semi-dedicated Hosting

The information uploaded to any semi-dedicated hosting account is kept on SSD drives which function in RAID-Z. One of the drives in such a setup is used for parity - whenever data is copied on it, an additional bit is added. If a disk happens to be problematic, it will be removed from the RAID without disturbing the work of the websites because the data will load from the remaining drives, and when a new drive is added, the information which will be duplicated on it will be a blend between the information on the parity disk and data kept on the other hard disks in the RAID. This is done in order to guarantee that the info which is being copied is correct, so the moment 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 which runs on our cloud Internet hosting platform compares a special checksum of all the copies of your files on the separate drives in order to avoid any chance of silent data corruption.

RAID in VPS Web Hosting

All virtual private server accounts that we offer are made on physical servers that use SSD drives operating in RAID. At least one drive is intended for parity - one additional bit is added to the data copied on it and in case a main disk stops working, this bit makes it much simpler to recalculate the bits of the files on the failed drive so that the accurate data is restored on the new drive added to the RAID. At the same time, your sites will still be online as all the info will still load from at least one more hard disk. In the event that you add regular backups to your VPS plan, a copy of the data will be stored on standard hard drives which also work in RAID as we want to make certain that any type of website content you upload will be risk-free all the time. Working with multiple drives in RAID for all main and backup servers enables us to offer fast and reliable web hosting service.