Data corruption is the damage of info due to various hardware or software failures. After a file gets damaged, it will no longer work accurately, so an application will not start or will give errors, a text file can be partially or entirely unreadable, an archive will be impossible to open 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 serious problem for website hosting servers as problems are much more likely to occur on bigger hard disks where significant volumes of information are kept. If a drive is a part of a RAID and the info on it is duplicated on other drives for redundancy, it's more than likely that the bad file will be treated as a standard one and it'll be duplicated on all drives, making the harm permanent. A lot of the file systems which run on web servers nowadays often cannot identify corrupted files instantly 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 all our cloud website hosting servers by using the leading-edge Z file system, or ZFS. The latter is superior to other file systems because it is the only one out there that checks all files right away by employing a checksum - a digital identifier that is unique for each file. When you upload content to your account, it will be stored on several NVMe drives and frequently synchronized between them for redundancy. ZFS regularly examines the checksum of all files and in case any file is detected as damaged, it's replaced right away with a good copy from another disk. As this happens in real time, there's no risk that a damaged file may remain or may be duplicated on the remaining NVMes. ZFS needs plenty of physical memory to execute the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple very powerful servers working together. If you host your websites with us, your data will be undamaged no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Servers
You won't need to deal with any silent data corruption issues in case you buy one of our semi-dedicated server plans because the ZFS file system that we employ on our cloud hosting platform uses checksums in order to guarantee that all the files are undamaged all the time. A checksum is a unique digital fingerprint that is allotted to each and every file saved on a server. Since we store all content on a number of drives at the same time, the same file has the same checksum on all the drives and what ZFS does is that it compares the checksums between the different drives in real time. When it detects that a file is corrupted and its checksum is different from what it has to be, it replaces that file with a healthy copy right away, avoiding any probability of the bad copy to be synchronized on the other hard disks. ZFS is the sole file system on the market that uses checksums, which makes it much more dependable than other file systems that cannot identify silent data corruption and duplicate bad files across hard drives.