The process of files getting damaged caused by some hardware or software failure is known as data corruption and this is among the main problems that hosting companies face since the larger a hard drive is and the more info is stored on it, the much more likely it is for data to become corrupted. You will find a couple of fail-safes, but often the info gets corrupted silently, so neither the particular file system, nor the admins see a thing. Thus, a corrupted file will be handled as a regular one and if the hard disk is a part of a RAID, that file will be copied on all other drives. Theoretically, this is done for redundancy, but in practice the damage will get even worse. The moment some file gets corrupted, it will be partly or entirely unreadable, so a text file will no longer be readable, an image file will show a random combination of colors if it opens at all and an archive shall be impossible to unpack, and you risk losing your content. Although the most popular server file systems include various checks, they often fail to discover some problem early enough or require an extensive period of time in order to check all of the files and the web server will not be functional for the time being.
No Data Corruption & Data Integrity in Shared Website Hosting
We warrant the integrity of the information uploaded in each and every shared website hosting account which is generated on our cloud platform due to the fact that we employ the advanced ZFS file system. The latter is the only one that was designed to prevent silent data corruption through a unique checksum for each and every file. We shall store your info on multiple SSD drives that work in a RAID, so identical files will be available on several places at once. ZFS checks the digital fingerprint of all of the files on all the drives in real time and if the checksum of any file is different from what it needs to be, the file system replaces that file with a healthy version from another drive within the RAID. No other file system uses checksums, so it is easy for data to become silently damaged and the bad file to be duplicated on all drives with time, but since this can never happen on a server running ZFS, you do not have to worry about the integrity of your information.