Data corruption is the unintentional modification of a file or the losing of info that usually occurs during reading or writing. The reason could be hardware or software malfunction, and due to this fact, a file may become partially or entirely corrupted, so it will no longer work as it should since its bits will be scrambled or lacking. An image file, for example, will no longer show a real image, but a random mix of colors, an archive will be impossible to unpack because its content will be unreadable, etcetera. If this kind of a problem occurs and it isn't found 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 info is synchronized between various drives, the corrupted file shall be reproduced on all the other drives and the damage will be permanent. A number of popular file systems either don't feature real-time checks or don't have high quality ones that can detect a problem before the damage is done, so silent data corruption is a common matter on hosting servers where huge volumes of info are kept.
No Data Corruption & Data Integrity in Shared Hosting
If you host your Internet sites in a shared hosting account with our company, you do not need to worry about your data ever getting damaged. We can ensure that as our cloud hosting platform works with the outstanding ZFS file system. The aforementioned is the only file system that uses checksums, or unique digital fingerprints, for every single file. All of the data that you upload will be saved in a RAID i.e. simultaneously on numerous SSDs. Many file systems synchronize the files between the separate drives using such a setup, but there's no real guarantee that a file won't be corrupted. This can occur at the time of the writing process on any drive and after that a corrupted copy may be copied on all other drives. What is different on our platform is that ZFS compares the checksums of all files on all drives live and when a corrupted file is found, it's swapped with a good copy with the correct checksum from another drive. That way, your data will continue to be intact no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
We've avoided any probability of files getting damaged silently due to the fact that the servers where your semi-dedicated server account will be created take advantage of a powerful file system named ZFS. Its main advantage over other file systems is that it uses a unique checksum for every single file - a digital fingerprint which is checked in real time. As we save all content on a number of SSD drives, ZFS checks if the fingerprint of a file on one drive matches the one on the rest of the drives and the one it has stored. When there's a mismatch, the bad copy is replaced with a good one from one of the other drives and since this happens right away, there is no chance that a corrupted copy could remain on our servers or that it can be copied to the other hard drives in the RAID. None of the other file systems include this kind of checks and what is more, even during a file system check right after a sudden blackout, none of them can detect silently corrupted files. In contrast, ZFS does not crash after a power loss and the constant checksum monitoring makes a time-consuming file system check unneeded.