Data corruption is the damage of information because of various hardware or software problems. When a file is corrupted, it will no longer work correctly, 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 unpack, etc. Silent data corruption is the process of info getting harmed without any identification by the system or an admin, which makes it a serious problem for website hosting servers as problems are very likely to occur on larger in size hard disk drives where significant volumes of info are located. When a drive is part of a RAID and the info on it is copied on other drives for redundancy, it is very likely that the bad file will be treated as an undamaged one and it will be copied on all of the drives, making the damage permanent. A lot of the file systems that run on web servers today often cannot recognize corrupted files right away or they need time-consuming system checks through which the server is not operational.

No Data Corruption & Data Integrity in Cloud Website Hosting

We have resolved the problem of silent data corruption on our cloud website hosting servers by using the leading-edge Z file system, or ZFS. The latter is more advanced than other file systems as it is the only one in existence which checks all of the files right away by employing a checksum - a digital identifier that is unique for each and every file. When you upload content to your account, it will be stored on several SSD drives and frequently synced between them for redundancy. ZFS regularly compares the checksum of all files and when any file is detected as corrupted, it's replaced promptly with a good copy from some other disk. As this happens in real time, there's no risk that a bad file may remain or may be duplicated on the other SSDs. ZFS requires plenty of physical memory in order to carry out 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 data will be intact no matter what.