Data corruption is the unintentional modification of a file or the loss of information which often occurs during reading or writing. The reason may be hardware or software failure, and as a consequence, a file may become partially or completely corrupted, so it will no longer work as it should since its bits shall be scrambled or lacking. An image file, for instance, will no longer display a true image, but a random combination of colors, an archive will be impossible to unpack because its content will be unreadable, etc. In the event that this kind of an issue occurs and it isn't noticed by the system or by an admin, the data will get corrupted silently and if this happens on a drive that is part of a RAID array where the info is synchronized between various different drives, the corrupted file shall be copied on all the other drives and the harm will become long term. A large number of widely used file systems either do not offer real-time checks or don't have good ones which will detect a problem before the damage is done, so silent data corruption is a very common problem on internet hosting servers where large volumes of data are kept.
No Data Corruption & Data Integrity in Hosting
If you host your sites in a hosting account with our company, you do not have to worry about any of your data ever getting corrupted. We can guarantee that since our cloud hosting platform works with the outstanding ZFS file system. The latter is the only file system that works with checksums, or unique digital fingerprints, for each and every file. All data that you upload will be saved in a RAID i.e. simultaneously on a number of SSDs. Many file systems synchronize the files between the different drives with this type of a setup, but there's no real warranty that a file won't be corrupted. This may occur at the time of the writing process on each drive and afterwards a corrupted copy can be copied on the rest of the drives. What is different on our platform is the fact that ZFS compares the checksums of all files on all drives live and if a corrupted file is discovered, it is replaced with a good copy with the correct checksum from another drive. By doing this, your info will remain unharmed no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
If you buy one of our semi-dedicated server plans, you won't have to be concerned about silent data corruption as we use ZFS - a high level file system that monitors all files in real time. Each time you upload a file to your hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. This file will be synced between a couple of SSD drives for redundancy, so if one drive fails, the other ones will take over. ZFS compares the checksum of all the copies on the different drives and if it detects a damaged copy, it replaces it with a healthy one from another drive. This happens right away, so there will be no threat for any part of your content at any time. In contrast, other file systems execute checks only after a system malfunction, but since they do not use anything similar to the checksums which ZFS uses, they won't detect silently corrupted files, so a bad copy may be replicated on the rest of the drives as well and you may lose critical information. Because this is not the case with ZFS, we can guarantee the integrity of each and every file you upload no matter what.