Data corruption is the damage of info due to various hardware or software problems. When a file is corrupted, it will no longer function as it should, so an application will not start or will give errors, a text file can be partially or completely unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of info getting damaged without any identification by the system or an admin, which makes it a serious problem for website hosting servers as fails are more likely to happen on bigger hard disks where vast volumes of info are kept. When a drive is a part of a RAID and the info on it is replicated on other drives for redundancy, it is likely that the damaged file will be treated as a healthy one and it'll be duplicated on all the drives, making the harm permanent. A huge number of the file systems which operate on web servers nowadays often are unable to identify corrupted files immediately or they need time-consuming system checks through which the server isn't functioning.

No Data Corruption & Data Integrity in Shared Web Hosting

We've resolved the problem of silent data corruption on our shared web hosting servers by using the modern Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one on the market that checks all files in real time by employing a checksum - a digital identifier that is unique for each file. When you upload content to your account, it'll be stored on several SSD drives and frequently synced between them for redundancy. ZFS constantly analyzes the checksum of all files and in case any file is detected as corrupted, it is replaced quickly with a good copy from some other disk. As this happens in real time, there is no risk that a damaged file may remain or may be copied on the other SSDs. ZFS requires lots of physical memory in order to carry out the real-time checks and the advantage of our cloud website hosting platform is that we employ multiple powerful servers working together. In case you host your Internet sites with us, your information will be intact no matter what.