The process of files being damaged as a result of some hardware or software failure is called data corruption and this is one of the main problems that hosting companies face because the larger a hard disk drive is and the more info is kept on it, the more likely it is for data to get corrupted. There are various fail-safes, still often the data gets damaged silently, so neither the file system, nor the admins see a thing. Consequently, a corrupted file will be treated as a good one and if the HDD is part of a RAID, that file will be copied on all other disk drives. Theoretically, this is done for redundancy, but in reality the damage will get even worse. The moment a given file gets corrupted, it will be partly or fully unreadable, which means that a text file will not be readable, an image file will present a random blend of colors if it opens at all and an archive shall be impossible to unpack, and you risk losing your website content. Although the most widespread server file systems feature various checks, they are likely to fail to detect a problem early enough or require a long period of time in order to check all of the files and the hosting server will not be operational in the meantime.
No Data Corruption & Data Integrity in Website Hosting
We warrant the integrity of the info uploaded in each and every website hosting
account that is made on our cloud platform since we employ the advanced ZFS file system. The aforementioned is the only one which was designed to avoid silent data corruption thanks to a unique checksum for each and every file. We shall store your data on a number of SSD drives that function in a RAID, so exactly the same files will be accessible on several places simultaneously. ZFS checks the digital fingerprint of all files on all the drives in real time and in the event that the checksum of any file differs from what it has to be, the file system replaces that file with a healthy version from some other drive from the RAID. No other file system uses checksums, so it's possible for data to get silently damaged and the bad file to be duplicated on all drives with time, but since that can never happen on a server running ZFS, you don't have to worry about the integrity of your info.
No Data Corruption & Data Integrity in Semi-dedicated Servers
We've avoided any probability of files getting damaged silently because the servers where your semi-dedicated server
account will be created employ a powerful file system named ZFS. Its basic advantage over alternative file systems is that it uses a unique checksum for each and every file - a digital fingerprint that's checked in real time. Since we keep all content on a number of SSD drives, ZFS checks if the fingerprint of a file on one drive corresponds to the one on the rest of the drives and the one it has saved. In case there's a mismatch, the damaged copy is replaced with a healthy one from one of the other drives and considering that it happens instantly, there is no chance that a damaged copy could remain on our web hosting servers or that it can be copied to the other drives in the RAID. None of the other file systems include this type of checks and furthermore, even during a file system check right after an unexpected blackout, none of them will identify silently corrupted files. In contrast, ZFS will not crash after an electrical power failure and the regular checksum monitoring makes a time-consuming file system check unnecessary.