Data corruption is the unintended change of a file or the loss of info that often occurs during reading or writing. The reason can be hardware or software failure, and as a result, a file may become partially or entirely corrupted, so it will no longer function properly because its bits shall be scrambled or lacking. An image file, for example, will no longer present an actual image, but a random combination of colors, an archive will be impossible to unpack since its content will be unreadable, and so on. If such an issue occurs and it isn't noticed by the system or by an admin, the data will get corrupted silently and in case this happens on a disk drive that is part of a RAID array where the information is synced between various drives, the corrupted file shall be copied on all other drives and the damage will be long term. A large number of widespread file systems either do not have real-time checks or do not have good ones that can detect a problem before the damage is done, so silent data corruption is a rather common matter on web hosting servers where substantial amounts of information are kept.
No Data Corruption & Data Integrity in Cloud Web Hosting
We guarantee the integrity of the information uploaded in every single cloud web hosting
account which is created on our cloud platform since we employ the advanced ZFS file system. The latter is the only one which was designed to avert silent data corruption through a unique checksum for each and every file. We will store your information on a number of SSD drives which operate in a RAID, so identical files will be accessible on several places simultaneously. ZFS checks the digital fingerprint of all of the files on all of the drives in real time and in case the checksum of any file is different from what it should be, the file system replaces that file with an undamaged version from some other drive in the RAID. No other file system uses checksums, so it's possible for data to get silently damaged and the bad file to be duplicated on all drives with time, but since that can never happen on a server using ZFS, you will not have to worry about the integrity of your information.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We've avoided any risk of files getting corrupted silently due to the fact that the servers where your semi-dedicated hosting
account will be created employ a powerful file system named ZFS. Its key advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint that's checked in real time. As we store all content on numerous SSD drives, ZFS checks if the fingerprint of a file on one drive matches the one on the remaining drives and the one it has saved. In the event that there's a mismatch, the bad copy is replaced with a healthy one from one of the other drives and since it happens instantly, there is no chance that a corrupted copy can remain on our web servers or that it can be copied to the other drives in the RAID. None of the other file systems employ such checks and what is more, even during a file system check right after a sudden power failure, none of them will detect silently corrupted files. In contrast, ZFS doesn't crash after a blackout and the regular checksum monitoring makes a time-consuming file system check unneeded.