Data corruption is the damage of information due to various hardware or software failures. After a file is corrupted, it will no longer function correctly, so an app will not start or will give errors, a text file will be partially or fully unreadable, an archive will be impossible to open and 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 serious problem for website hosting servers as failures are much more likely to happen on bigger hard disk drives where vast volumes of information are stored. When a drive is a part of a RAID and the info on it is duplicated on other drives for redundancy, it is more than likely that the damaged file will be treated as an undamaged one and will be copied on all the drives, making the damage permanent. Lots of the file systems that operate on web servers these days often are unable to find corrupted files instantly or they need time-consuming system checks through which the server is not functioning.

No Data Corruption & Data Integrity in Cloud Website Hosting

We have dealt with the problem of silent data corruption on all of our cloud website 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 on the market which checks all files immediately 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 frequently synced between them for redundancy. ZFS constantly examines the checksum of all files and when any file is detected as corrupted, it's replaced quickly with a good copy from some other disk. As this happens in real time, there's no risk that a damaged file may remain or may be duplicated on the rest of the NVMes. ZFS needs lots of physical memory to perform the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple 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 Hosting

We've avoided any possibility of files getting corrupted silently due to the fact that the servers where your semi-dedicated hosting account will be created take advantage of a powerful file system named ZFS. Its basic advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint which is checked in real time. As we store all content on a number of NVMe 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 the event that there is a mismatch, the bad copy is replaced with a good one from one of the other drives and because it happens instantly, there's no chance that a damaged copy can remain on our website hosting servers or that it could be copied to the other drives in the RAID. None of the other file systems include such checks and in addition, even during a file system check right after a sudden power loss, none of them can identify silently corrupted files. In comparison, ZFS will not crash after a power loss and the continual checksum monitoring makes a time-consuming file system check obsolete.