Data corruption is the unintended change of a file or the losing of info that usually occurs during reading or writing. The reason may be hardware or software malfunction, and as a result, a file may become partially or fully corrupted, so it'll no longer function correctly as its bits shall be scrambled or lacking. An image file, for example, will no longer display an authentic image, but a random combination of colors, an archive will be impossible to unpack as its content will be unreadable, and so on. If this kind of a problem appears and it isn't found by the system or by an admin, the data will be corrupted silently and in case this happens on a disk drive that's part of a RAID array where the data is synced between different drives, the corrupted file will be duplicated on all other drives and the damage will become permanent. A number of widespread file systems either do not have real-time checks or don't have good ones that can detect an issue before the damage is done, so silent data corruption is a rather common problem on web hosting servers where huge volumes of info are stored.

No Data Corruption & Data Integrity in Shared Website Hosting

In case you host your sites in a shared website hosting account from our firm, you do not need to worry about any of your data ever getting corrupted. We can guarantee that as our cloud hosting platform uses the reliable ZFS file system. The latter is the only file system which works with checksums, or unique digital fingerprints, for each file. All the information that you upload will be saved in a RAID i.e. simultaneously on many SSDs. All the file systems synchronize the files between the different drives with this kind of a setup, but there is no real warranty that a file will not be corrupted. This may occur throughout the writing process on each drive and after that a damaged copy may be copied on all other drives. What is different on our platform is that ZFS compares the checksums of all files on all of the drives live and when a corrupted file is identified, it is replaced with a good copy with the correct checksum from some other drive. This way, your data will stay 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 due to the fact that the servers where your semi-dedicated server account will be created use a powerful file system known as ZFS. Its advantage over various other file systems is that it uses a unique checksum for each and every file - a digital fingerprint which is checked in real time. As we keep all content on numerous SSD drives, ZFS checks whether the fingerprint of a file on one drive corresponds to the one on the remaining drives and the one it has stored. If there is a mismatch, the corrupted copy is replaced with a good one from one of the other drives and since it happens in real time, there is no chance that a corrupted copy could remain on our website hosting servers or that it could be duplicated to the other drives 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 electrical power failure, none of them can detect silently corrupted files. In comparison, ZFS won't crash after a power failure and the regular checksum monitoring makes a time-consuming file system check unnecessary.