Data corruption is the unintentional modification of a file or the losing of info which usually occurs during reading or writing. The reason may be hardware or software fail, and consequently, a file could become partially or entirely corrupted, so it'll no longer function as it should since its bits will be scrambled or lost. An image file, for example, will no longer show an actual image, but a random mix of colors, an archive will be impossible to unpack as its content will be unreadable, and so on. In case such an issue occurs and it isn't noticed by the system or by an admin, the data will be corrupted silently and when this happens on a drive which is a part of a RAID array where the info is synced between different drives, the corrupted file shall be reproduced on all other drives and the damage will become long term. Numerous commonly used file systems either do not feature 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 matter on internet hosting servers where substantial amounts of information are kept.

No Data Corruption & Data Integrity in Shared Hosting

We warrant the integrity of the info uploaded in every single shared hosting account which is created on our cloud platform due to the fact that we use the advanced ZFS file system. The latter is the only one which was designed to prevent silent data corruption via a unique checksum for every single file. We'll store your data on a number of SSD drives which function in a RAID, so the same files will be present on several places at once. ZFS checks the digital fingerprint of all the files on all drives in real time and if the checksum of any file is different from what it should be, the file system swaps that file with an undamaged copy from some other drive from the RAID. There's no other file system which uses checksums, so it is possible for data to become silently corrupted and the bad file to be replicated on all drives with time, but since this can never happen on a server running ZFS, you don't have to concern yourself with the integrity of your info.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We've avoided any probability of files getting corrupted silently due to the fact that the servers where your semi-dedicated server account will be created employ a powerful file system named ZFS. Its main advantage over various other file systems is that it uses a unique checksum for each file - a digital fingerprint which is checked in real time. As we store all content on numerous SSD 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 is a mismatch, the damaged copy is replaced with a good one from one of the other drives and because this happens instantly, there is no chance that a damaged copy can remain on our hosting servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems employ such checks and what is more, even during a file system check right after an unexpected blackout, none of them can find silently corrupted files. In comparison, ZFS will not crash after a power loss and the constant checksum monitoring makes a lenghty file system check unneeded.