Data corruption is the unintended change of a file or the losing of info that often occurs during reading or writing. The reason could be hardware or software failure, and as a result, a file may become partially or completely corrupted, so it'll no longer function properly as its bits shall be scrambled or lacking. An image file, for instance, will no longer show an accurate image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, and so on. When such a problem occurs and it is not recognized by the system or by an administrator, the data will get corrupted silently and in case this happens on a drive that's a part of a RAID array where the data is synchronized between various different drives, the corrupted file shall be copied on all of the other drives and the damage will become long term. Numerous popular file systems either do not feature real-time checks or don't have good ones that will detect a problem before the damage is done, so silent data corruption is a rather common issue on hosting servers where large volumes of information are stored.