No Data Corruption & Data Integrity

Data corruption is the accidental change of a file or the loss of information which often occurs during reading or writing. The reason may be hardware or software malfunction, and as a consequence, a file can become partially or completely corrupted, so it will no longer work as it should since its bits will be scrambled or lacking. An image file, for instance, will no longer show a true image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etc. If such a problem appears and it's not recognized by the system or by an admin, the data will become corrupted silently and when this happens on a drive that's 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 permanent. A number of commonly used file systems either don't have real-time checks or don't have high quality ones which can detect a problem before the damage is done, so silent data corruption is a rather common issue on hosting servers where huge volumes of data are kept.