The process of files getting corrupted as a result of some hardware or software failure is called data corruption and this is one of the main problems which web hosting companies face since the larger a hard disk is and the more information is stored on it, the more likely it is for data to become corrupted. You'll find various fail-safes, still often the information becomes damaged silently, so neither the file system, nor the admins see anything. Because of this, a bad file will be handled as a good one and if the HDD is a part of a RAID, that particular file will be duplicated on all other drives. In theory, this is done for redundancy, but in reality the damage will get even worse. When a file gets damaged, it will be partly or fully unreadable, therefore a text file will not be readable, an image file will display 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 commonly used server file systems feature various checks, they quite often fail to detect a problem early enough or require a vast amount of time to check all the files and the hosting server will not be operational in the meantime.
No Data Corruption & Data Integrity in Cloud Web Hosting
The integrity of the data which you upload to your new cloud web hosting account will be guaranteed by the ZFS file system which we use on our cloud platform. The vast majority of web hosting providers, like our firm, use multiple hard disk drives to store content and considering that the drives work in a RAID, exactly the same info is synchronized between the drives at all times. When a file on a drive gets corrupted for whatever reason, yet, it's very likely that it will be reproduced on the other drives because alternative file systems don't include special checks for that. In contrast to them, ZFS applies a digital fingerprint, or a checksum, for each and every file. If a file gets corrupted, its checksum won't match what ZFS has as a record for it, therefore the bad copy shall be swapped with a good one from another hard disk. As this happens immediately, there's no risk for any of your files to ever get damaged.