Data corruption is the damage of data due to various software or hardware problems. Once a file gets damaged, it will no longer work accurately, so an app will not start or shall give errors, a text file will be partially or fully unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of info getting harmed without any identification by the system or an admin, that makes it a significant problem for website hosting servers as failures are more likely to happen on larger in size hard disk drives where large volumes of info are stored. In case a drive is part of a RAID and the info on it is duplicated on other drives for redundancy, it's very likely that the bad file will be treated as a standard one and it'll be duplicated on all of the drives, making the harm permanent. A lot of the file systems that run on web servers today often are not able to detect corrupted files instantly or they need time-consuming system checks through which the server isn't operational.
No Data Corruption & Data Integrity in Semi-dedicated Servers
If you obtain one of our semi-dedicated server plans, you will not need to worry about silent data corruption since we use ZFS - a high level file system which checks all files in real time. Each time you upload a file to your web hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synced between a couple of NVMe drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all of the copies on the different drives and if it detects a corrupted copy, it replaces it with a healthy one from a different drive. This is done instantly, so there will be no threat for any part of your content at any moment. By comparison, all the other file systems execute checks only after a system malfunction, but since they do not use anything similar to the checksums which ZFS uses, they won't detect silently corrupted files, so a corrupted copy can be replicated on the other drives as well and you could lose crucial info. Since this is not the case with ZFS, we can guarantee the integrity of each file you upload no matter what.