Data corruption is the accidental change of a file or the losing of info which often occurs during reading or writing. The reason may be hardware or software failure, and as a result, a file could become partially or completely corrupted, so it will no longer work correctly as its bits shall be scrambled or lost. An image file, for example, will no longer present an authentic image, but a random mix of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etc. If such a problem occurs and it's not noticed by the system or by an administrator, the data will get corrupted silently and when this happens on a disk drive that's part of a RAID array where the data is synchronized between various different drives, the corrupted file will be replicated on all the other drives and the damage will be long term. A large number of widespread file systems either do not have real-time checks or don't have good ones which will detect an issue before the damage is done, so silent data corruption is a rather common issue on internet hosting servers where substantial amounts of data are kept.
No Data Corruption & Data Integrity in Shared Website Hosting
The integrity of the data which you upload to your new shared website hosting account will be ensured by the ZFS file system that we employ on our cloud platform. The majority of hosting suppliers, including our company, use multiple hard disks to store content and since the drives work in a RAID, identical info is synchronized between the drives all of the time. When a file on a drive gets corrupted for some reason, however, it is more than likely that it will be duplicated on the other drives as alternative file systems do not feature special checks for that. Unlike them, ZFS works with a digital fingerprint, or a checksum, for every file. In the event that a file gets damaged, its checksum won't match what ZFS has as a record for it, therefore the damaged copy shall be replaced with a good one from another hard drive. Due to the fact that this happens right away, there is no risk for any of your files to ever get damaged.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We've avoided any possibility of files getting damaged silently since the servers where your semi-dedicated hosting account will be created employ a powerful file system called ZFS. Its key advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint that is checked in real time. Since we save all content on a number of SSD drives, ZFS checks whether the fingerprint of a file on one drive corresponds to the one on the other drives and the one it has stored. In the event that there is a mismatch, the bad copy is replaced with a good one from one of the other drives and considering that this happens instantly, there's no chance that a damaged copy can remain on our website hosting servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems use this kind of checks and what's more, even during a file system check after a sudden electrical power failure, none of them can discover silently corrupted files. In contrast, ZFS does not crash after a power failure and the regular checksum monitoring makes a time-consuming file system check unneeded.