Data corruption is the damage of information because of various hardware or software problems. After a file is damaged, it will no longer work correctly, so an application will not start or will give errors, a text file shall be partially or entirely unreadable, an archive will be impossible to open then unpack, etc. Silent data corruption is the process of information getting damaged without any acknowledgement by the system or an administrator, which makes it a significant problem for web hosting servers as fails are more likely to occur on bigger hard disks where substantial volumes of information are stored. When a drive is a part of a RAID and the info on it is copied on other drives for redundancy, it is more than likely that the bad file will be treated as an ordinary one and it'll be copied on all the drives, making the damage permanent. Lots of the file systems which run on web servers these days often cannot find corrupted files instantly or they need time-consuming system checks during which the server is not working.
No Data Corruption & Data Integrity in Hosting
The integrity of the data that you upload to your new hosting account will be guaranteed by the ZFS file system which we make use of on our cloud platform. Most internet hosting service providers, including our firm, use multiple hard disks to keep content and since the drives work in a RAID, the exact same information is synchronized between the drives all the time. When a file on a drive becomes corrupted for reasons unknown, however, it is very likely that it will be duplicated on the other drives as other file systems do not offer special checks for this. Unlike them, ZFS works with a digital fingerprint, or a checksum, for each file. If a file gets damaged, its checksum won't match what ZFS has as a record for it, so the damaged copy shall be substituted with a good one from a different hard disk. Since this happens immediately, there's no possibility for any of your files to ever get corrupted.