Data corruption is the damage of info caused by various software or hardware failures. After a file is corrupted, it will no longer work correctly, so an application will not start or will give errors, a text file shall be partially or fully unreadable, an archive will be impossible to open and then unpack, etc. Silent data corruption is the process of data getting damaged without any identification by the system or an administrator, which makes it a significant problem for website hosting servers as failures are very likely to occur on larger in size hard disk drives where substantial volumes of information are placed. When a drive is part of a RAID and the data on it is duplicated on other drives for redundancy, it is likely that the bad file will be treated as a regular one and will be duplicated on all of the drives, making the harm permanent. A lot of the file systems which run on web servers nowadays often are unable to find corrupted files instantly or they need time-consuming system checks through which the server isn't operational.
No Data Corruption & Data Integrity in Cloud Website Hosting
If you host your Internet sites in a cloud website hosting account from our firm, you won't have to worry about your data ever getting damaged. We can ensure that since our cloud hosting platform uses the state-of-the-art ZFS file system. The latter is the only file system which works with checksums, or unique digital fingerprints, for each file. Any kind of info that you upload will be kept in a RAID i.e. simultaneously on a number of SSD drives. Many file systems synchronize the files between the different drives with such a setup, but there is no real warranty that a file won't be corrupted. This may occur throughout the writing process on each drive and after that a damaged copy can be copied on the rest of the drives. What makes the difference on our platform is that ZFS examines the checksums of all files on all the drives right away and in case a corrupted file is discovered, it is replaced with a good copy with the correct checksum from some other drive. This way, your data will continue to be unharmed no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
We've avoided any risk of files getting corrupted silently because the servers where your semi-dedicated server 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 that 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 other drives and the one it has saved. If there's a mismatch, the bad copy is replaced with a good one from one of the other drives and because this happens right away, there's no chance that a corrupted copy can remain on our website hosting servers or that it could be duplicated to the other hard drives in the RAID. None of the other file systems use this kind of checks and furthermore, even during a file system check after a sudden power loss, none of them can find silently corrupted files. In comparison, ZFS won't crash after a power failure and the constant checksum monitoring makes a time-consuming file system check unneeded.