Data corruption is the unintended transformation of a file or the losing of info that often occurs during reading or writing. The reason can be hardware or software fail, and because of this, a file may become partially or entirely corrupted, so it will no longer function as it should because its bits will be scrambled or lacking. An image file, for instance, will no longer display a real image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, and so on. When this kind of an issue appears and it's not recognized 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 information is synced between various drives, the corrupted file will be copied on all of the other drives and the damage will be permanent. Many commonly used file systems either don't feature real-time checks or don't have good ones that will detect a problem before the damage is done, so silent data corruption is a rather common issue on web hosting servers where substantial volumes of info are stored.
No Data Corruption & Data Integrity in Shared Hosting
We warrant the integrity of the data uploaded in every single shared hosting account which is created on our cloud platform due to the fact that we work with the advanced ZFS file system. The aforementioned is the only one that was designed to avoid silent data corruption using a unique checksum for every single file. We'll store your info on a number of SSD drives which operate in a RAID, so identical files will be present on several places simultaneously. ZFS checks the digital fingerprint of all the files on all the drives in real time and in case the checksum of any file is different from what it has to be, the file system swaps that file with a healthy copy from some other drive inside the RAID. No other file system uses checksums, so it's easy for data to get silently damaged and the bad file to be replicated on all drives with time, but since that can never happen on a server using ZFS, you do not have to concern yourself with the integrity of your info.
No Data Corruption & Data Integrity in Semi-dedicated Servers
We have avoided any possibility of files getting corrupted silently due to the fact that the servers where your semi-dedicated server account will be created employ a powerful file system named ZFS. Its advantage over various other file systems is that it uses a unique checksum for each file - a digital fingerprint which is checked in real time. As we save all content on multiple 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 saved. When there's a mismatch, the damaged copy is replaced with a healthy one from one of the other drives and considering that it happens in real time, there's no chance that a corrupted copy could remain on our website hosting servers or that it can be duplicated to the other hard drives in the RAID. None of the other file systems work with this kind of checks and in addition, even during a file system check right after an unexpected electrical power failure, none of them will discover silently corrupted files. In comparison, ZFS won't crash after a power failure and the regular checksum monitoring makes a time-consuming file system check obsolete.