The process of files getting corrupted as a result of some hardware or software failure is referred to as data corruption and this is one of the main problems which hosting companies face because the larger a hard disk drive is and the more information is filed on it, the more likely it is for data to be corrupted. You can find various fail-safes, still often the info becomes corrupted silently, so neither the particular file system, nor the admins see anything. Because of this, a corrupted file will be handled as a regular one and if the hard disk drive is a part of a RAID, that particular file will be copied on all other disk drives. In principle, this is done for redundancy, but in reality the damage will get worse. When a file gets damaged, it will be partially or entirely unreadable, therefore a text file will no longer be readable, an image file will present a random mix of colors in case it opens at all and an archive will be impossible to unpack, so you risk sacrificing your website content. Although the most widely used server file systems feature various checks, they quite often fail to detect some problem early enough or require a long amount of time in order to check all files and the web server will not be operational in the meantime.

No Data Corruption & Data Integrity in Shared Hosting

We have dealt with 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 of the files instantly by employing a checksum - a digital identifier that is unique for each and every 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 the event that any file is detected as corrupted, it's replaced instantly with a good copy from another disk. As this happens in real time, there's no risk that a corrupted file may remain or may be duplicated on the rest of the NVMes. ZFS needs plenty of physical memory to execute the real-time checks and the advantage of our cloud website hosting platform is that we employ multiple powerful servers working together. In case you host your Internet sites with us, your info will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We've avoided any chance of files getting damaged silently since the servers where your semi-dedicated hosting account will be created work with a powerful file system named ZFS. Its basic advantage over various other file systems is that it uses a unique checksum for each and every file - a digital fingerprint that is checked in real time. Since we store all content on a number of NVMe drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the other drives and the one it has stored. In case there is a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and considering that this happens in real time, there is no chance that a corrupted copy can remain on our web hosting servers or that it could be copied to the other hard disks in the RAID. None of the other file systems include such checks and what is more, even during a file system check following a sudden power loss, none of them can identify silently corrupted files. In contrast, ZFS won't crash after an electrical power failure and the constant checksum monitoring makes a lenghty file system check unnecessary.