Data corruption is the unintentional change of a file or the loss of info which often occurs during reading or writing. The reason can be hardware or software failure, and as a consequence, a file may become partially or fully corrupted, so it will no longer function correctly because its bits shall be scrambled or lacking. An image file, for example, will no longer display an authentic image, but a random mix of colors, an archive will be impossible to unpack since its content will be unreadable, etcetera. In case this kind of 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 drive that's part of a RAID array where the data is synced between various drives, the corrupted file shall be copied on all other drives and the harm will become long term. A large number of commonly used file systems either don't offer real-time checks or don't have high quality ones that can detect a problem before the damage is done, so silent data corruption is a very common problem on web hosting servers where huge amounts of info are kept.
No Data Corruption & Data Integrity in Shared Website Hosting
The integrity of the data which you upload to your new shared website hosting
account shall be ensured by the ZFS file system which we make use of on our cloud platform. The majority of web hosting suppliers, like our company, use multiple HDDs to keep content and because the drives work in a RAID, the exact same data is synchronized between the drives at all times. If a file on a drive is damaged for reasons unknown, however, it is more than likely that it will be duplicated on the other drives because alternative file systems do not feature special checks for this. In contrast to them, ZFS employs a digital fingerprint, or a checksum, for every file. In the event that a file gets damaged, its checksum won't match what ZFS has as a record for it, which means that the damaged copy will be swapped with a good one from a different hard drive. Due to the fact that this happens immediately, there is no risk for any of your files to ever get corrupted.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We have avoided any chance of files getting damaged 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 basic advantage over alternative file systems is that it uses a unique checksum for each and every file - a digital fingerprint which is checked in real time. Since we keep all content on multiple 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 saved. In the event that there is a mismatch, the damaged 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 hosting servers or that it could be duplicated to the other hard drives in the RAID. None of the other file systems work with this type of checks and what is more, even during a file system check right after an unexpected electrical power failure, none of them can find silently corrupted files. In comparison, ZFS will not crash after a power loss and the continual checksum monitoring makes a lenghty file system check obsolete.