Data corruption is the unintended change of a file or the losing of info that often occurs during reading or writing. The reason could be hardware or software failure, and as a consequence, a file can become partially or completely corrupted, so it'll no longer work as it should as its bits shall be scrambled or lacking. 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 because its content will be unreadable, etcetera. When such a problem appears and it's not noticed by the system or by an administrator, the data will become corrupted silently and if this happens on a drive that's a part of a RAID array where the information is synchronized between different drives, the corrupted file shall be reproduced on all the other drives and the damage will become permanent. Many widespread file systems either do not feature real-time checks or don't have high quality ones that can detect an issue before the damage is done, so silent data corruption is a rather common matter on internet hosting servers where huge volumes of data are stored.
No Data Corruption & Data Integrity in Shared Web Hosting
If you host your Internet sites in a shared web hosting account with our company, you do not have to worry about your data ever getting damaged. We can guarantee that since our cloud hosting platform uses the outstanding ZFS file system. The aforementioned is the only file system which uses checksums, or unique digital fingerprints, for each file. Any kind of info that you upload will be saved in a RAID i.e. simultaneously on many SSDs. Many file systems synchronize the files between the separate drives using this kind of a setup, but there's no real guarantee that a file will not get corrupted. This could happen at the time of the writing process on any drive and afterwards a corrupted copy can be copied on the other drives. What is different on our platform is that ZFS compares the checksums of all files on all the drives live and in the event that a corrupted file is discovered, it is substituted with a good copy with the correct checksum from some other drive. By doing this, your info will remain intact no matter what, even if a whole drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
If you get one of our semi-dedicated hosting solutions, you won't have to be concerned about silent file corruption as we use ZFS - an advanced file system that checks all files in real time. Each time you upload a file to your account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synced between a number of SSD drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all of the copies on the different drives and in case it detects a corrupted copy, it replaces it with a healthy one from a different drive. This is done in real time, so there will be no threat for any part of your content at any time. By comparison, alternative file systems carry out checks after a system malfunction, but since they do not use anything similar to the checksums that ZFS uses, they won't detect silently corrupted files, so a corrupted copy may be replicated on the other drives as well and you may lose critical data. Because this is not the case with ZFS, we warrant the integrity of every single file you upload no matter what.