Data corruption is the damage of data caused by various hardware or software problems. After a file is corrupted, it will no longer function correctly, so an app will not start or shall give errors, a text file shall be partially or completely unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of info getting harmed without any acknowledgement by the system or an administrator, that makes it a serious problem for web hosting servers as problems are more likely to occur on bigger hard drives where large volumes of information are stored. If a drive is part of a RAID and the information on it is copied on other drives for redundancy, it's more than likely that the bad file will be treated as a regular one and it will be copied on all drives, making the damage permanent. Lots of the file systems which operate on web servers these days often are unable 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 Cloud Hosting
We've tackled the problem of silent data corruption on all of our cloud hosting servers by using the cutting-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 of the files immediately by employing a checksum - a digital identifier that's unique for each file. When you upload content to your account, it'll be stored on several SSD drives and regularly synced between them for redundancy. ZFS constantly compares the checksum of all files and in the event that any file is detected as damaged, it's replaced promptly with a good copy from another disk. As this happens in real time, there is no risk that a corrupted file may remain or may be copied on the other SSDs. ZFS requires a lot of physical memory to perform the real-time checks and the benefit of our cloud web 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 undamaged no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Servers
You will not experience any silent data corruption issues if you get one of our semi-dedicated server solutions as 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 of the time. A checksum is a unique digital fingerprint that is allotted to each and every file stored on a server. Because we store all content on multiple drives at the same time, the same file uses 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 damaged copy to be synchronized on the rest of the hard drives. ZFS is the sole file system you can find which uses checksums, which makes it much more reliable than other file systems which are not able to detect silent data corruption and copy bad files across drives.