Data corruption is the damage of data due to various software or hardware problems. Once a file gets damaged, it will no longer work correctly, so an application will not start or shall give errors, a text file shall be partially or completely unreadable, an archive file will be impossible to open and unpack, etc. Silent data corruption is the process of information getting harmed without any acknowledgement by the system or an administrator, which makes it a serious problem for hosting servers as failures are very likely to occur on larger in size hard disks where considerable volumes of information are located. If a drive is a part of a RAID and the data on it is duplicated on other drives for redundancy, it's very likely that the damaged file will be treated as a good one and will be duplicated on all drives, making the damage permanent. Lots of the file systems which operate on web servers nowadays often cannot identify corrupted files instantly or they need time-consuming system checks through which the server isn't working.
No Data Corruption & Data Integrity in Shared Hosting
The integrity of the data which you upload to your new shared hosting account shall be ensured by the ZFS file system that we use on our cloud platform. Most hosting service providers, like our company, use multiple hard drives to keep content and since the drives work in a RAID, the same information is synchronized between the drives all of the time. When a file on a drive is damaged for some reason, however, it is likely that it will be copied on the other drives because alternative file systems don't offer special checks for that. In contrast to them, ZFS applies a digital fingerprint, or a checksum, for each and every file. If a file gets damaged, its checksum will not match what ZFS has as a record for it, therefore the bad copy will be swapped with a good one from another drive. Due to the fact that this happens in real time, there is no possibility for any of your files to ever be damaged.