Data corruption is the damage of data caused by various hardware or software fails. Once a file gets corrupted, it will no longer function correctly, so an application will not start or shall give errors, a text file will be partially or fully unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of info getting damaged without any identification by the system or an administrator, which makes it a serious problem for website hosting servers as failures are very likely to happen on larger hard disks where considerable volumes of info are placed. When a drive is part of a RAID and the info on it is replicated on other drives for redundancy, it is more than likely that the bad file will be treated as an undamaged one and will be duplicated on all of the drives, making the harm permanent. A lot of the file systems that operate on web servers these days often are not able to find corrupted files in real time or they need time-consuming system checks through which the server isn't functioning.
No Data Corruption & Data Integrity in Shared Hosting
If you host your Internet sites in a shared hosting account with our firm, you do not have to worry about any of your data ever getting damaged. We can ensure that since our cloud hosting platform works with the reliable ZFS file system. The latter is the only file system which works with checksums, or unique digital fingerprints, for each and every file. All of the information that you upload will be kept in a RAID i.e. simultaneously on multiple SSDs. Many file systems synchronize the files between the different drives using such a setup, but there's no real warranty that a file will not get corrupted. This can happen at the time of the writing process on any drive and after that a corrupted copy may be copied on all other drives. What makes the difference on our platform is that ZFS analyzes the checksums of all files on all of the drives instantly and in case a corrupted file is discovered, it's replaced with a good copy with the correct checksum from another drive. By doing this, your data will remain intact no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We have avoided any chance of files getting corrupted silently as the servers where your semi-dedicated hosting account will be created employ a powerful file system named ZFS. Its main advantage over other file systems is that it uses a unique checksum for each 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 rest of the drives and the one it has stored. In the event that there is a mismatch, the bad copy is replaced with a healthy one from one of the other drives and considering that it happens instantly, there is no chance that a damaged copy can remain on our web hosting servers or that it could be copied to the other drives in the RAID. None of the other file systems employ this type of checks and what is more, even during a file system check following an unexpected power failure, none of them will detect silently corrupted files. In contrast, ZFS doesn't crash after a power loss and the regular checksum monitoring makes a lenghty file system check unneeded.