Data corruption is the damage of data because of various hardware or software fails. When a file gets damaged, it will no longer work properly, so an app will not start or shall give errors, a text file will be partially or fully unreadable, an archive 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 administrator, that makes it a significant problem for hosting servers as fails are more likely to occur on bigger hard disk drives where large volumes of info are stored. When a drive is a part of a RAID and the information on it is replicated on other drives for redundancy, it's likely that the damaged file will be treated as an undamaged one and it'll be copied on all of 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 recognize corrupted files right away or they need time-consuming system checks through which the server isn't operational.

No Data Corruption & Data Integrity in Shared Website Hosting

We've tackled the matter of silent data corruption on all our shared website hosting servers by using the modern Z file system, or ZFS. The latter is more advanced than other file systems as it is the only one on the market that checks all the files in real time by employing a checksum - a digital identifier that's unique for each and every file. When you upload content to your account, it'll be stored on several NVMe drives and frequently synced between them for redundancy. ZFS regularly examines the checksum of all files and if any file is detected as corrupted, it's replaced instantly 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 other NVMes. ZFS needs lots of physical memory in order to execute the real-time checks and the advantage of our cloud web hosting platform is that we use multiple very powerful servers working together. In case you host your Internet sites with us, your data will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We have avoided any chance of files getting damaged silently as the servers where your semi-dedicated hosting account will be created use a powerful file system called ZFS. Its basic advantage over various other file systems is that it uses a unique checksum for each file - a digital fingerprint that's checked in real time. As we store all content on a number of 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 saved. In case there is a mismatch, the bad copy is replaced with a healthy one from one of the other drives and since it happens instantly, there's no chance that a corrupted copy can remain on our web servers or that it could be duplicated to the other hard drives in the RAID. None of the other file systems include such checks and in addition, even during a file system check after an unexpected electrical power failure, none of them can discover silently corrupted files. In contrast, ZFS doesn't crash after a blackout and the continual checksum monitoring makes a lenghty file system check unnecessary.