Data corruption is the damage of information caused by various hardware or software fails. The moment a file is damaged, it will no longer work as it should, so an app will not start or will give errors, a text file will be partially or fully unreadable, an archive file will be impossible to open and then unpack, etc. Silent data corruption is the process of information getting damaged without any identification by the system or an administrator, which makes it a significant problem for web hosting servers as failures are very likely to occur on bigger hard drives where significant volumes of info are located. When a drive is a part of a RAID and the information on it is copied on other drives for redundancy, it is very likely that the bad file will be treated as a healthy one and it'll be copied on all of the drives, making the damage permanent. Lots of the file systems that run on web servers nowadays often are unable to recognize corrupted files instantly or they need time-consuming system checks through which the server isn't functioning.

No Data Corruption & Data Integrity in Web Hosting

We have tackled the matter of silent data corruption on our web hosting servers by using the state-of-the-art Z file system, or ZFS. The latter is superior to other file systems as it is the only one on the market which checks all 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 synced between them for redundancy. ZFS constantly examines the checksum of all files and when 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 damaged file may remain or may be duplicated on the other NVMes. ZFS needs plenty of physical memory to carry out the real-time checks and the advantage of our cloud web hosting platform is that we employ multiple very powerful servers working together. If you host your sites with us, your data will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

If you go for one of our semi-dedicated hosting plans, you will not have to worry about silent file corruption because we use ZFS - an advanced file system that checks all the files in real time. Each time you upload a file to your website hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. This file will be synced between several NVMe drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all copies on the different drives and in case it detects a corrupted copy, it replaces it with a healthy one from another drive. This is done immediately, so there will be no risk for any part of your content at any time. In contrast, all of the other file systems carry out checks only after a system failure, but since they don't use anything similar to the checksums which ZFS uses, they will not detect silently corrupted files, so a bad copy could be replicated on the remaining disks as well and you may lose crucial info. Because this isn't the case with ZFS, we're able to guarantee the integrity of every single file you upload no matter what.