Data corruption is the unintended change of a file or the losing of information that often occurs during reading or writing. The reason can be hardware or software fail, and as a result, a file can become partially or completely corrupted, so it'll no longer work correctly as its bits shall be scrambled or lacking. 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 because its content will be unreadable, and so on. If such a problem appears and it is not recognized by the system or by an administrator, the data will become corrupted silently and if this happens on a disk drive which is part of a RAID array where the info is synced between various drives, the corrupted file shall be copied on all of the other drives and the damage will be long term. Numerous popular file systems either do not have real-time checks or do not have good ones which will detect a problem before the damage is done, so silent data corruption is a very common issue on internet hosting servers where substantial volumes of information are kept.

No Data Corruption & Data Integrity in Shared Website Hosting

We have dealt with the problem of silent data corruption on all our shared website hosting servers by using the state-of-the-art Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one on the market which checks all of the files right away by employing a checksum - a digital identifier which is unique for every single file. When you upload content to your account, it will be stored on several SSD drives and regularly synchronized between them for redundancy. ZFS constantly analyzes the checksum of all files and in case any file is detected as corrupted, it is replaced right away with a good copy from another disk. As this happens in real time, there is no risk that a damaged file may remain or may be duplicated on the remaining SSDs. ZFS requires a lot of physical memory in order to carry out the real-time checks and the benefit of our cloud website hosting platform is that we take advantage of multiple very powerful servers working together. If you host your Internet sites with us, your data will be undamaged no matter what.