Data corruption is the damage of info caused by various hardware or software problems. When a file gets damaged, it will no longer function correctly, so an application will not start or shall give errors, a text file can be partially or completely unreadable, an archive file will be impossible to open and unpack, etc. Silent data corruption is the process of information getting damaged without any acknowledgement by the system or an admin, that makes it a serious problem for web hosting servers as problems are much more likely to occur on bigger hard disks where significant volumes of information are placed. When a drive is part of a RAID and the data on it is copied on other drives for redundancy, it's very likely that the damaged file will be treated as an undamaged one and it'll be duplicated on all drives, making the damage permanent. Lots of the file systems that operate on web servers nowadays often are unable to identify corrupted files in real time or they need time-consuming system checks during which the server is not working.

No Data Corruption & Data Integrity in Cloud Hosting

In case you host your sites in a cloud hosting account with our firm, you do not need to worry about your data ever getting damaged. We can ensure that because our cloud hosting platform uses the cutting-edge ZFS file system. The aforementioned is the only file system which uses checksums, or unique digital fingerprints, for each file. Any info that you upload will be saved in a RAID i.e. simultaneously on a large number of SSDs. A lot of file systems synchronize the files between the different drives with this type of a setup, but there's no real warranty that a file will not be corrupted. This could occur at the time of the writing process on any drive and afterwards a damaged copy can be copied on the other drives. What makes the difference on our platform is that ZFS analyzes the checksums of all files on all the drives immediately and in the event that a corrupted file is located, it is replaced with a good copy with the correct checksum from some other drive. By doing this, your info will remain intact no matter what, even if an entire drive fails.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We have avoided any chance of files getting corrupted silently as the servers where your semi-dedicated server account will be created use a powerful file system named ZFS. Its advantage over various other file systems is that it uses a unique checksum for each and every file - a digital fingerprint that is checked in real time. Since we save all content on a number of SSD drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the other drives and the one it has saved. In case there's a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and because this happens instantly, there's no chance that a damaged copy could remain on our web servers or that it could be copied to the other hard disks in the RAID. None of the other file systems employ such checks and what is more, even during a file system check following a sudden electrical power failure, none of them will detect silently corrupted files. In comparison, ZFS won't crash after a power loss and the regular checksum monitoring makes a lenghty file system check unneeded.