Data corruption is the damage of information because of various software or hardware failures. When a file is corrupted, it will no longer function correctly, so an app will not start or will give errors, a text file can be partially or entirely unreadable, an archive will be impossible to open and then unpack, etc. Silent data corruption is the process of info getting damaged without any identification by the system or an admin, that makes it a serious problem for hosting servers as problems are much more likely to happen on larger hard drives where large volumes of information are placed. When a drive is a part of a RAID and the data on it is duplicated on other drives for redundancy, it is more than likely that the damaged file will be treated as a standard one and it'll be copied on all drives, making the damage permanent. Lots of the file systems which run on web servers nowadays often are not able to detect corrupted files instantly or they need time-consuming system checks through which the server is not working.

No Data Corruption & Data Integrity in Website Hosting

We've tackled the problem of silent data corruption on all of our website hosting servers by using the leading-edge Z file system, or ZFS. The latter is better than other file systems since it is the only one out there that checks all the files instantly by using a checksum - a digital identifier which is unique for each and every file. When you upload content to your account, it will be stored on several SSD drives and continually 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 right away with a good copy from some other disk. As this happens in real time, there's no risk that a corrupted file may remain or may be copied on the rest of the SSDs. ZFS needs lots of physical memory in order to perform the real-time checks and the advantage of our cloud hosting platform is that we work with multiple powerful servers working together. In case you host your Internet sites with us, your information will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

We've avoided any probability 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 known as ZFS. Its basic advantage over various other file systems is that it uses a unique checksum for every single file - a digital fingerprint that's checked in real time. Since we keep all content on multiple SSD drives, ZFS checks if the fingerprint of a file on one drive corresponds to the one on the remaining drives and the one it has stored. If there is a mismatch, the damaged copy is replaced with a good one from one of the other drives and since it happens in real time, there's no chance that a damaged copy could remain on our web hosting servers or that it can be duplicated to the other hard drives in the RAID. None of the other file systems work with such checks and in addition, even during a file system check after a sudden power failure, none of them can discover silently corrupted files. In comparison, ZFS doesn't crash after an electrical power failure and the continual checksum monitoring makes a time-consuming file system check unneeded.