Data corruption is the unintentional modification of a file or the losing of info which usually occurs during reading or writing. The reason could be hardware or software fail, and consequently, a file can become partially or entirely corrupted, so it'll no longer work correctly as its bits will be scrambled or lost. An image file, for example, will no longer show an accurate image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etc. In the event that such a problem occurs and it is not noticed by the system or by an administrator, the data will get corrupted silently and when this happens on a disk drive that is part of a RAID array where the data is synchronized between various drives, the corrupted file will be replicated on all the other drives and the harm will be long term. A number of widely used file systems either don't feature real-time checks or do not have high quality ones that can detect a problem before the damage is done, so silent data corruption is a rather common issue on web hosting servers where substantial amounts of info are stored.

No Data Corruption & Data Integrity in Shared Hosting

The integrity of the data that you upload to your new shared hosting account shall be ensured by the ZFS file system which we work with on our cloud platform. The majority of hosting service providers, including our company, use multiple hard disk drives to keep content and since the drives work in a RAID, identical information is synchronized between the drives all of the time. In case a file on a drive is corrupted for some reason, yet, it is more than likely that it will be duplicated on the other drives because other file systems don't feature special checks for this. In contrast to them, ZFS employs a digital fingerprint, or a checksum, for each file. If a file gets corrupted, its checksum will not match what ZFS has as a record for it, which means that the bad copy shall be swapped with a good one from a different hard drive. As this happens instantly, there's no risk for any of your files to ever get corrupted.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We've avoided any probability of files getting corrupted silently because the servers where your semi-dedicated server account will be created use a powerful file system named ZFS. Its key advantage over alternative file systems is that it uses a unique checksum for each file - a digital fingerprint that's checked in real time. Since we keep all content on numerous SSD drives, ZFS checks whether the fingerprint of a file on one drive corresponds to the one on the rest of the drives and the one it has stored. When there's a mismatch, the bad copy is replaced with a healthy one from one of the other drives and because this happens instantly, there is no chance that a corrupted copy could remain on our website hosting servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems include this kind of checks and furthermore, even during a file system check after a sudden power loss, none of them can identify silently corrupted files. In comparison, ZFS does not crash after a power loss and the continual checksum monitoring makes a time-consuming file system check obsolete.