Data corruption is the damage of data because of various hardware or software failures. After a file is damaged, it will no longer function accurately, so an app will not start or will give errors, a text file will be partially or entirely unreadable, an archive file will be impossible to open then unpack, etc. Silent data corruption is the process of information getting harmed without any identification by the system or an administrator, which makes it a significant problem for website hosting servers as failures are much more likely to occur on larger hard disks where large volumes of info are located. If a drive is a part of a RAID and the data on it is duplicated on other drives for redundancy, it is more than likely that the bad file will be treated as a healthy one and it'll be copied on all the drives, making the harm permanent. A lot of the file systems that operate on web servers today often are not able to locate corrupted files right away or they need time-consuming system checks through which the server isn't functioning.
