Data corruption is the damage of information due to various software or hardware failures. When a file gets corrupted, it will no longer work as it should, so an app will not start or shall give errors, a text file could be partially or fully unreadable, an archive will be impossible to open and then unpack, etc. Silent data corruption is the process of data getting damaged without any identification by the system or an admin, which makes it a significant problem for web hosting servers as problems are much more likely to happen on larger in size hard disks where vast volumes of info are located. In case a drive is a part of a RAID and the info on it is copied on other drives for redundancy, it is more than likely that the damaged file will be treated as a good one and will be copied on all of the drives, making the harm permanent. A lot of the file systems that run on web servers nowadays often cannot identify corrupted files in real time or they need time-consuming system checks during which the server isn't operational.
No Data Corruption & Data Integrity in Web Hosting
We have resolved the problem of silent data corruption on all of our web hosting servers by using the state-of-the-art Z file system, or ZFS. The latter is superior to other file systems because it is the only one out there that checks all the files instantly by employing a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it will be stored on several SSD drives and frequently synced between them for redundancy. ZFS constantly examines the checksum of all files and in case any file is detected as damaged, it is 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 rest of the SSDs. ZFS requires plenty of physical memory to perform the real-time checks and the benefit of our cloud web hosting platform is that we use multiple very powerful servers working together. If you host your Internet sites with us, your data will be intact no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Servers
Your semi-dedicated server account will be shielded from silent data corruption as all of our storage servers make use of the state-of-the-art ZFS file system. What makes the aforementioned unique is that it employs checksums, or digital identifiers, so as to verify the integrity of each and every file. When you upload content to your account, it'll be kept on several redundant drives being employed in a RAID i.e. the files shall be the same on all disks. All of the copies of a particular file will feature the same checksum on all hard drives and ZFS will compare the checksums of the duplicates right away, so if it discovers a mismatch, that would indicate that one of the copies is damaged, it will swap that file with a healthy copy from one of the other disks. Even if there's a sudden power failure, the data on the servers will not become corrupted and there won't be any need for a time-consuming system check that other file systems perform following some failure, prolonging the time needed for the server to go back online. ZFS is the sole file system that can truly protect your content from silent data corruption.