Data corruption is the unintended modification of a file or the losing of info which usually occurs during reading or writing. The reason could be hardware or software failure, and because of this, a file can become partially or completely corrupted, so it'll no longer work properly as its bits will be scrambled or lacking. An image file, for example, will no longer present an accurate image, but a random mix of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etc. When this kind of an issue appears and it's not noticed by the system or by an admin, the data will be corrupted silently and in case this happens on a disk drive that is a part of a RAID array where the data is synchronized between various drives, the corrupted file will be duplicated on all other drives and the harm will be long term. A large number of widely used file systems either don't offer real-time checks or don't have good ones that can detect an issue before the damage is done, so silent data corruption is a common problem on web hosting servers where large amounts of data are stored.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
If you go for one of our semi-dedicated hosting solutions, you won't need to worry about silent data corruption because we use ZFS - an advanced file system which keeps track of all of the files in real time. Every time you upload a file to your account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synced between multiple NVMe drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all the copies on the different drives and in case it detects a damaged copy, it replaces it with a healthy one from a different drive. This is done right away, so there will be no risk for any part of your content at any time. By comparison, all the other file systems carry out checks only after a system failure, but since they don't use anything similar to the checksums that ZFS uses, they will not detect silently corrupted files, so a corrupted copy could be replicated on the remaining drives as well and you may lose important data. Since this is not the case with ZFS, we warrant the integrity of every single file you upload no matter what.