Data corruption is the damage of data because of various hardware or software problems. After a file gets corrupted, it will no longer work properly, so an application will not start or will give errors, a text file will be partially or entirely unreadable, an archive will be impossible to open then unpack, etc. Silent data corruption is the process of information getting harmed without any identification by the system or an administrator, which makes it a significant problem for website hosting servers as fails are more likely to occur on larger hard disk drives where significant volumes of info are stored. If a drive is part of a RAID and the info on it is duplicated on other drives for redundancy, it's likely that the damaged file will be treated as a standard one and will be copied on all the drives, making the harm permanent. Lots of the file systems which run on web servers today often are unable to recognize corrupted files immediately or they need time-consuming system checks through which the server is not working.
No Data Corruption & Data Integrity in Shared Web Hosting
If you host your Internet sites in a shared web hosting
account from our company, you won't have to worry about your data ever getting corrupted. We can guarantee that because our cloud hosting platform works with the outstanding ZFS file system. The aforementioned is the only file system which uses checksums, or unique digital fingerprints, for each file. All data that you upload will be saved in a RAID i.e. simultaneously on numerous SSD drives. All file systems synchronize the files between the different drives with this type of a setup, but there's no real guarantee that a file will not be corrupted. This can occur throughout the writing process on each drive and after that a corrupted copy can be copied on all other drives. What is different on our platform is the fact that ZFS analyzes the checksums of all files on all of the drives in real time and when a corrupted file is discovered, it's swapped with a good copy with the correct checksum from some other 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 have avoided any possibility of files getting damaged silently as the servers where your semi-dedicated server
account will be created work with a powerful file system named ZFS. Its advantage over alternative file systems is that it uses a unique checksum for every single file - a digital fingerprint which is checked in real time. As we store all content on a number of 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. In case there's a mismatch, the bad copy is replaced with a good one from one of the other drives and considering that it happens right away, there's no chance that a damaged copy could remain on our website hosting servers or that it can be copied to the other hard drives in the RAID. None of the other file systems include this kind of checks and in addition, even during a file system check right after an unexpected power failure, none of them will discover silently corrupted files. In contrast, ZFS won't crash after a blackout and the regular checksum monitoring makes a time-consuming file system check unneeded.