Data corruption is the unintentional modification of a file or the losing of info which often occurs during reading or writing. The reason may be hardware or software malfunction, and as a consequence, a file can become partially or entirely corrupted, so it'll no longer function properly since its bits shall be scrambled or missing. An image file, for instance, will no longer present an actual image, but a random mix of colors, an archive will be impossible to unpack as its content will be unreadable, etcetera. In case such an issue appears and it's not identified by the system or by an admin, the data will become corrupted silently and when this happens on a drive that's a part of a RAID array where the info is synchronized between different drives, the corrupted file shall be replicated on all other drives and the harm will be permanent. Numerous popular file systems either don't offer real-time checks or do not have high quality ones which can detect an issue before the damage is done, so silent data corruption is a very common issue on web hosting servers where huge volumes of info are kept.

No Data Corruption & Data Integrity in Website Hosting

We have tackled the problem of silent data corruption on all our website hosting servers by using the cutting-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one out there which checks all of the files immediately by employing a checksum - a digital identifier that's unique for each file. When you upload content to your account, it'll 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 is replaced immediately with a good copy from some other disk. As this happens in real time, there's no risk that a damaged file may remain or may be copied on the other NVMes. ZFS needs plenty of physical memory in order to carry out the real-time checks and the benefit of our cloud hosting platform is that we take advantage of multiple powerful servers working together. In case you host your websites with us, your info will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We have avoided any chance of files getting damaged silently as the servers where your semi-dedicated hosting account will be created use a powerful file system called ZFS. Its advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint that is checked in real time. As we save all content on multiple NVMe drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the remaining drives and the one it has saved. When there's a mismatch, the damaged copy is replaced with a healthy one from one of the other drives and since this happens instantly, there is no chance that a damaged copy can remain on our web hosting servers or that it could be copied to the other hard drives in the RAID. None of the other file systems include such checks and furthermore, even during a file system check after an unexpected electrical power failure, none of them can discover silently corrupted files. In comparison, ZFS doesn't crash after a power loss and the regular checksum monitoring makes a time-consuming file system check unnecessary.