Data corruption is the damage of info caused by various hardware or software fails. When a file gets corrupted, it will no longer work properly, so an application will not start or shall give errors, a text file could be partially or completely unreadable, an archive file will be impossible to open and 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 website hosting servers as fails are very likely to happen on bigger hard drives where substantial volumes of information are placed. In case a drive is part of a RAID and the information on it is duplicated on other drives for redundancy, it's very likely that the bad file will be treated as an undamaged one and it will be duplicated on all of the drives, making the harm permanent. A lot of the file systems which run on web servers nowadays often cannot find corrupted files in real time or they need time-consuming system checks during which the server isn't working.

No Data Corruption & Data Integrity in Cloud Website Hosting

We have tackled the issue of silent data corruption on our cloud website hosting servers by using the state-of-the-art Z file system, or ZFS. The latter is better than other file systems as it is the only one out there that checks all files right away by employing a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it will be stored on several SSD drives and constantly synchronized between them for redundancy. ZFS constantly compares the checksum of all files and when any file is detected as damaged, it is replaced right away with a good copy from another disk. As this happens in real time, there's no risk that a corrupted file may remain or may be duplicated on the other SSDs. ZFS needs a lot of physical memory in order to perform the real-time checks and the benefit of our cloud web hosting platform is that we use multiple powerful servers working together. In case you host your sites with us, your info will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

You will not encounter any kind of silent data corruption issues if you purchase one of our semi-dedicated server packages because the ZFS file system that we take advantage of on our cloud hosting platform uses checksums to guarantee that all the files are undamaged all the time. A checksum is a unique digital fingerprint which is allotted to each and every file saved on a server. As we store all content on a number of drives simultaneously, the same file has the same checksum on all drives and what ZFS does is that it compares the checksums between the different drives in real time. In case it detects that a file is corrupted and its checksum is different from what it should be, it replaces that file with a healthy copy without delay, avoiding any probability of the bad copy to be synchronized on the remaining hard drives. ZFS is the only file system you can get that uses checksums, which makes it much more reliable than other file systems which cannot identify silent data corruption and copy bad files across drives.