Data corruption is the accidental transformation of a file or the losing of info that often occurs during reading or writing. The reason can be hardware or software fail, and because of this, a file can become partially or fully corrupted, so it'll no longer work properly because its bits shall be scrambled or missing. An image file, for instance, will no longer present an actual image, but a random mix of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, and so on. In case such a problem occurs and it's not identified by the system or by an administrator, the data will become corrupted silently and when this happens on a drive which is part of a RAID array where the information is synchronized between different drives, the corrupted file will be replicated on all the other drives and the harm will be long term. A large number of frequently used file systems either don't offer real-time checks or don't have good ones that will detect a problem before the damage is done, so silent data corruption is a rather common problem on web hosting servers where substantial volumes of information are kept.

No Data Corruption & Data Integrity in Cloud Hosting

In case you host your websites in a cloud hosting account with our company, you do not need to worry about any of your data ever getting damaged. We can ensure that because our cloud hosting platform works with the leading-edge ZFS file system. The latter is the only file system which works with checksums, or unique digital fingerprints, for every single file. Any kind of information that you upload will be stored in a RAID i.e. simultaneously on a number of SSDs. All file systems synchronize the files between the separate drives with such a setup, but there is no real warranty that a file won't be corrupted. This can happen throughout the writing process on each drive and then a bad copy may be copied on the rest of the drives. What makes the difference on our platform is that ZFS analyzes the checksums of all files on all the drives right away and if a corrupted file is located, it is swapped with a good copy with the correct checksum from another drive. That way, your data will remain undamaged no matter what, even if a whole drive fails.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We've avoided any risk of files getting corrupted silently since the servers where your semi-dedicated server account will be created use a powerful file system named ZFS. Its key advantage over other file systems is that it uses a unique checksum for each and every 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 corresponds to the one on the other drives and the one it has saved. If there is a mismatch, the bad copy is replaced with a good one from one of the other drives and because it happens right away, there's no chance that a damaged copy could remain on our web servers or that it can be copied to the other hard disks in the RAID. None of the other file systems include this kind of checks and what's more, even during a file system check following a sudden power loss, none of them will identify silently corrupted files. In comparison, ZFS doesn't crash after a power loss and the regular checksum monitoring makes a time-consuming file system check unnecessary.