Data corruption is the unintentional modification of a file or the loss of information that often occurs during reading or writing. The reason can be hardware or software malfunction, and as a result, a file may become partially or entirely corrupted, so it'll no longer work correctly as its bits shall be scrambled or lacking. An image file, for example, will no longer present a true image, but a random combination of colors, an archive will be impossible to unpack as its content will be unreadable, and so on. In the event that such an issue occurs and it's not found by the system or by an admin, the data will be corrupted silently and when this happens on a disk drive that is part of a RAID array where the info is synchronized between various different drives, the corrupted file shall be duplicated on all other drives and the harm will become long term. Many popular file systems either don't offer real-time checks or don't have high quality ones which can detect a problem before the damage is done, so silent data corruption is a rather common problem on hosting servers where huge volumes of information are kept.

No Data Corruption & Data Integrity in Website Hosting

We have dealt with the issue of silent data corruption on our website hosting servers by using the cutting-edge Z file system, or ZFS. The latter is superior to other file systems since it is the only one in existence which checks all the files instantly 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 SSD drives and constantly synced between them for redundancy. ZFS regularly analyzes the checksum of all files and if any file is detected as corrupted, it's replaced quickly with a good copy from some other disk. As this happens in real time, there's no risk that a corrupted file may remain or may be copied on the rest of the SSDs. ZFS needs lots of physical memory in order to execute the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple very powerful servers working together. In case you host your websites with us, your information will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We've avoided any chance of files getting corrupted silently since the servers where your semi-dedicated hosting account will be created use a powerful file system called ZFS. Its main 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. As we keep all content on numerous SSD 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. If there's a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and because it happens instantly, there's no chance that a damaged copy can remain on our hosting servers or that it can be copied to the other drives in the RAID. None of the other file systems use this type of checks and furthermore, even during a file system check after a sudden power failure, none of them will detect silently corrupted files. In comparison, ZFS does not crash after a blackout and the continual checksum monitoring makes a time-consuming file system check unnecessary.