The process of files getting damaged as a result of some hardware or software failure is called data corruption and this is one of the main problems which Internet hosting companies face since the larger a hard disk is and the more information is filed on it, the more likely it is for data to become corrupted. There're a couple of fail-safes, but often the data becomes damaged silently, so neither the particular file system, nor the admins see a thing. Consequently, a bad file will be handled as a good one and if the hard disk drive is a part of a RAID, that file will be duplicated on all other drives. Theoretically, this is for redundancy, but in practice the damage will get even worse. The moment a given file gets damaged, it will be partially or entirely unreadable, which means that 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, so you risk losing your site content. Although the most widespread server file systems feature various checks, they often fail to find a problem early enough or require a vast period of time to be able to check all files and the server will not be operational for the time being.

No Data Corruption & Data Integrity in Hosting

We have resolved the problem of silent data corruption on all of our hosting servers by using the modern Z file system, or ZFS. The latter is superior to other file systems since it is the only one on the market which checks all the files in real time by using a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it will be stored on several NVMe drives and regularly synced between them for redundancy. ZFS constantly examines the checksum of all files and when any file is detected as damaged, it is replaced quickly 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 other NVMes. ZFS needs a lot of physical memory in order to execute the real-time checks and the benefit of our cloud hosting platform is that we work with multiple powerful servers working together. In case you host your Internet sites with us, your data will be intact no matter what.

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 take advantage of a powerful file system named 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 multiple NVMe drives, ZFS checks if the fingerprint of a file on one drive matches the one on the other drives and the one it has saved. In the event that there is a mismatch, the damaged copy is replaced with a healthy one from one of the other drives and since this happens right away, there is no chance that a damaged copy could remain on our hosting servers or that it can be duplicated to the other hard drives in the RAID. None of the other file systems include such checks and in addition, even during a file system check right after a sudden power failure, none of them will detect silently corrupted files. In comparison, ZFS will not crash after a power failure and the continual checksum monitoring makes a time-consuming file system check obsolete.