Data corruption is the unintended modification of a file or the loss of info that usually occurs during reading or writing. The reason could be hardware or software fail, and consequently, a file can become partially or fully corrupted, so it'll no longer function correctly because its bits will be scrambled or lacking. An image file, for example, will no longer present a real image, but a random combination of colors, an archive will be impossible to unpack as its content will be unreadable, etcetera. In the event that such a problem appears and it's not identified by the system or by an admin, the data will be corrupted silently and when this happens on a disk drive which is a part of a RAID array where the data is synced between various different drives, the corrupted file will be duplicated on all the other drives and the harm will be long term. A number of commonly used file systems either do not offer real-time checks or don't have high quality ones which will detect a problem before the damage is done, so silent data corruption is a very common matter on hosting servers where substantial volumes of data are stored.

No Data Corruption & Data Integrity in Shared Web Hosting

We have resolved the issue of silent data corruption on all our shared web hosting servers by using the amazing Z file system, or ZFS. The latter is superior to other file systems since it is the only one out there which checks all the files immediately by employing a checksum - a digital identifier that is unique for each and every file. When you upload content to your account, it'll be stored on several NVMe drives and frequently synchronized between them for redundancy. ZFS regularly analyzes the checksum of all files and in case any file is detected as damaged, it is replaced instantly with a good copy from another disk. As this happens in real time, there is no risk that a corrupted file may remain or may be copied on the other NVMes. ZFS requires a lot of physical memory in order to carry out the real-time checks and the advantage of our cloud website hosting platform is that we employ multiple powerful servers working together. If you host your sites with us, your information will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We've avoided any risk of files getting corrupted silently since the servers where your semi-dedicated hosting account will be created work with a powerful file system known as ZFS. Its main advantage over other file systems is that it uses a unique checksum for every single file - a digital fingerprint which is checked in real time. As we store all content on numerous NVMe drives, ZFS checks whether the fingerprint of a file on one drive corresponds to the one on the remaining drives and the one it has saved. In case there's a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and because it happens in real time, there is no chance that a damaged copy can remain on our website hosting servers or that it can be copied to the other drives in the RAID. None of the other file systems include this kind of checks and furthermore, even during a file system check right after a sudden electrical power failure, none of them can find silently corrupted files. In contrast, ZFS does not crash after a blackout and the continual checksum monitoring makes a lenghty file system check unnecessary.