Data corruption is the damage of data due to various hardware or software failures. After a file gets damaged, it will no longer function correctly, so an app will not start or will give errors, a text file could be partially or entirely unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of information getting damaged without any identification by the system or an admin, that makes it a serious problem for hosting servers as failures are more likely to occur on larger in size hard drives where considerable volumes of info are located. If a drive is a part of a RAID and the data on it is replicated on other drives for redundancy, it is likely that the bad file will be treated as a good one and it'll be duplicated on all drives, making the harm permanent. A huge number of the file systems that operate on web servers these days often are not able to find corrupted files immediately or they need time-consuming system checks during which the server is not working.
No Data Corruption & Data Integrity in Hosting
If you host your sites in a hosting account with our company, you do not have to worry about any of your data ever getting corrupted. We can ensure that due to the fact that our cloud hosting platform works with the revolutionary ZFS file system. The aforementioned is the only file system that uses checksums, or unique digital fingerprints, for every single file. All of the information that you upload will be stored in a RAID i.e. simultaneously on many different SSDs. All of the file systems synchronize the files between the separate drives with this type of a setup, but there's no real guarantee that a file won't be corrupted. This may occur throughout the writing process on any drive and afterwards a damaged copy may be copied on the rest of the drives. What makes the difference on our platform is that ZFS compares the checksums of all files on all of the drives in real time and when a corrupted file is found, it is substituted with a good copy with the correct checksum from another drive. In this way, your data will remain unharmed no matter what, even if a whole drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We've avoided any possibility of files getting damaged silently because the servers where your semi-dedicated hosting account will be created take advantage of a powerful file system named ZFS. Its key advantage over alternative file systems is that it uses a unique checksum for each file - a digital fingerprint that is checked in real time. As we save all content on numerous 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. If there's a mismatch, the bad copy is replaced with a healthy one from one of the other drives and because this happens right away, there is no chance that a damaged copy can remain on our web hosting servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems include this type of checks and furthermore, even during a file system check after a sudden blackout, none of them will discover silently corrupted files. In contrast, ZFS does not crash after a power failure and the constant checksum monitoring makes a lenghty file system check unneeded.