Data corruption is the accidental modification of a file or the loss of information which usually occurs during reading or writing. The reason could be hardware or software malfunction, and as a result, a file may become partially or fully corrupted, so it will no longer function correctly since its bits will be scrambled or missing. An image file, for instance, will no longer present a real image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etcetera. In the event that this kind of a problem occurs and it isn't noticed by the system or by an admin, the data will become corrupted silently and when this happens on a drive that's a part of a RAID array where the information is synchronized between various drives, the corrupted file will be copied on all other drives and the damage will become permanent. A number of popular file systems either do not feature real-time checks or don't have high quality ones that will detect an issue before the damage is done, so silent data corruption is a rather common issue on hosting servers where substantial volumes of data are stored.

No Data Corruption & Data Integrity in Web Hosting

We've resolved the matter of silent data corruption on all our web hosting servers by using the cutting-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one out there that checks all the files immediately by employing a checksum - a digital identifier which is unique for every single file. When you upload content to your account, it will be stored on several NVMe drives and continually synced between them for redundancy. ZFS regularly compares the checksum of all files and when any file is detected as damaged, it's replaced immediately with a good copy from another disk. As this happens in real time, there's no risk that a bad file may remain or may be duplicated on the rest of the NVMes. ZFS requires lots of physical memory to perform the real-time checks and the benefit of our cloud hosting platform is that we work with multiple powerful servers working together. If you host your Internet sites with us, your data will be undamaged no matter what.