Data corruption is the unintentional change of a file or the losing of info that usually occurs during reading or writing. The reason could be hardware or software malfunction, and as a consequence, a file can become partially or fully corrupted, so it'll no longer function properly as its bits will be scrambled or missing. An image file, for example, will no longer present a true image, but a random combination of colors, an archive will be impossible to unpack as its content will be unreadable, etcetera. If such an issue appears and it is not recognized by the system or by an administrator, the data will be corrupted silently and in case this happens on a disk drive that is part of a RAID array where the info is synchronized between different drives, the corrupted file shall be copied on all of the other drives and the damage will be permanent. Numerous widely used file systems either don't feature real-time checks or do not have high quality ones which can detect an issue before the damage is done, so silent data corruption is a rather common matter on internet hosting servers where substantial amounts of information are kept.
No Data Corruption & Data Integrity in Website Hosting
If you host your sites in a website hosting account with our company, you don't have to worry about any of your data ever getting corrupted. We can ensure that due to the fact that our cloud hosting platform works with the outstanding ZFS file system. The latter is the only file system that uses checksums, or unique digital fingerprints, for each and every file. All the data that you upload will be kept in a RAID i.e. simultaneously on numerous SSDs. All of the file systems synchronize the files between the different drives using such a setup, but there is no real guarantee that a file will not be corrupted. This can occur throughout the writing process on each drive and after that a corrupted copy can be copied on all other drives. What makes the difference on our platform is that ZFS compares the checksums of all files on all of the drives immediately and if a corrupted file is discovered, it's replaced with a good copy with the correct checksum from another drive. In this way, your data will stay unharmed no matter what, even if an entire drive fails.