The process of files getting corrupted caused by some hardware or software failure is known as data corruption and this is one of the main problems that web hosting companies face because the larger a hard drive is and the more data is stored on it, the much more likely it is for data to become corrupted. There're various fail-safes, yet often the info becomes corrupted silently, so neither the file system, nor the administrators detect anything. Thus, a corrupted file will be treated as a good one and if the hard disk drive is a part of a RAID, that particular file will be copied on all other drives. Theoretically, this is done for redundancy, but in reality the damage will get even worse. Once a given file gets corrupted, it will be partly or entirely unreadable, which means that a text file will no longer be readable, an image file will present a random combination of colors if it opens at all and an archive shall be impossible to unpack, so you risk sacrificing your site content. Although the most commonly used server file systems feature various checks, they often fail to discover a problem early enough or require a vast period of time in order to check all of the files and the hosting server will not be operational for the time being.

No Data Corruption & Data Integrity in Shared Hosting

We have tackled the matter of silent data corruption on our shared hosting servers by using the hi-tech Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one on the market that checks all the files in real time by using 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 NVMe drives and regularly synchronized between them for redundancy. ZFS regularly analyzes the checksum of all files and in case any file is detected as damaged, it's replaced immediately with a good copy from some other disk. As this happens in real time, there is no risk that a damaged file may remain or may be duplicated on the rest of the NVMes. ZFS needs lots of physical memory to perform the real-time checks and the benefit of our cloud website hosting platform is that we take advantage of multiple powerful servers working together. In case you host your sites with us, your information will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We have avoided any probability of files getting corrupted silently as the servers where your semi-dedicated hosting account will be created work with a powerful file system called ZFS. Its basic advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint that's checked in real time. Since we save all content on a number of NVMe 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 bad copy is replaced with a good one from one of the other drives and considering that it happens in real time, there's no chance that a damaged copy can remain on our web servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems employ such checks and furthermore, even during a file system check following a sudden power failure, none of them can identify silently corrupted files. In comparison, ZFS doesn't crash after a power failure and the continual checksum monitoring makes a time-consuming file system check unneeded.