Data corruption is the damage of data because of various hardware or software failures. When a file is corrupted, it will no longer function properly, so an app will not start or shall give errors, a text file can be partially or completely unreadable, an archive file will be impossible to open then unpack, etc. Silent data corruption is the process of data getting harmed without any identification by the system or an admin, that makes it a serious problem for web hosting servers as fails are very likely to happen on larger in size hard drives where large 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 a standard one and it'll be copied on all the drives, making the harm permanent. A huge number of the file systems which operate on web servers these days often are not able to identify corrupted files right away or they need time-consuming system checks during which the server is not working.

No Data Corruption & Data Integrity in Shared Hosting

We have dealt with the matter of silent data corruption on all our shared hosting servers by using the cutting-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one in existence which checks all of the files in real time by using a checksum - a digital identifier which is unique for each and every file. When you upload content to your account, it'll be stored on several NVMe drives and constantly synchronized between them for redundancy. ZFS constantly analyzes the checksum of all files and in case any file is detected as damaged, it's replaced quickly with a good copy from another disk. As this happens in real time, there is no risk that a bad file may remain or may be copied on the remaining NVMes. ZFS requires lots of physical memory in order to carry out the real-time checks and the benefit of our cloud website hosting platform is that we take advantage of multiple very powerful servers working together. If you host your sites with us, your information will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We have avoided any possibility of files getting damaged silently since the servers where your semi-dedicated server account will be created use a powerful file system known as ZFS. Its basic advantage over various other file systems is that it uses a unique checksum for each and every file - a digital fingerprint that's checked in real time. As we store all content on multiple NVMe drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the other drives and the one it has stored. In case there is a mismatch, the bad copy is replaced with a healthy one from one of the other drives and considering that this happens right away, there is no chance that a damaged copy can 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 type of checks and what is more, even during a file system check after a sudden blackout, none of them will identify silently corrupted files. In contrast, ZFS doesn't crash after a blackout and the regular checksum monitoring makes a lenghty file system check unnecessary.