The process of files getting damaged due to some hardware or software failure is known as data corruption and this is among the main problems that web hosting companies face since the larger a hard disk is and the more information is placed on it, the more likely it is for data to become corrupted. You'll find various fail-safes, still often the information is damaged silently, so neither the particular file system, nor the administrators see a thing. Thus, a corrupted file will be treated as a regular one and if the hard drive is part of a RAID, that particular file will be duplicated on all other drives. In theory, this is for redundancy, but in practice the damage will get worse. When some file gets corrupted, it will be partially or fully unreadable, which means that a text file will no longer be readable, an image file will show a random mix of colors in case it opens at all and an archive will be impossible to unpack, so you risk losing your website content. Although the most frequently used server file systems have various checks, they often fail to identify a problem early enough or require a long period of time to be able to check all the files and the hosting server will not be functional for the time being.
No Data Corruption & Data Integrity in Cloud Hosting
We warrant the integrity of the information uploaded in each cloud hosting
account that is generated on our cloud platform because we work with the advanced ZFS file system. The latter is the only one which was designed to prevent silent data corruption via a unique checksum for every single file. We shall store your info on multiple SSD drives that work in a RAID, so the exact same files will be present on several places at the same time. ZFS checks the digital fingerprint of all files on all of the drives in real time and in the event that the checksum of any file is different from what it should be, the file system swaps that file with an undamaged version from another drive inside the RAID. There's no other file system which uses checksums, so it's possible for data to be silently corrupted and the bad file to be replicated on all drives over time, but since that can never happen on a server using ZFS, you won't have to worry about the integrity of your data.
No Data Corruption & Data Integrity in Semi-dedicated Servers
If you buy one of our semi-dedicated server
solutions, you will not need to worry about silent data corruption because we use ZFS - an advanced file system which checks all the files in real time. Every time you upload a file to your account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. That file will be synchronized between a number of SSD drives for redundancy, so if one drive fails, the other ones will take control. ZFS compares the checksum of all of the copies on the different drives and if it detects a corrupted copy, it replaces it with a healthy one from another drive. This happens instantly, so there will be no risk for any part of your content at any moment. In contrast, other file systems perform checks after a system malfunction, but since they do not use anything similar to the checksums which ZFS uses, they are unable to detect silently corrupted files, so a bad copy can be replicated on the remaining disks as well and you may lose crucial data. Since this is not the case with ZFS, we guarantee the integrity of every single file you upload no matter what.