The process of files getting corrupted as a result of some hardware or software failure is called data corruption and this is one of the main problems that Internet hosting companies face because the larger a hard disk is and the more data is filed on it, the more likely it is for data to get corrupted. You will find a couple of fail-safes, still often the data becomes damaged silently, so neither the particular file system, nor the administrators notice anything. As a result, a bad file will be treated as a standard one and if the hard drive is part of a RAID, that particular file will be duplicated on all other drives. Theoretically, this is for redundancy, but in reality the damage will get even worse. Once a file gets corrupted, it will be partially or entirely unreadable, therefore a text file will no longer be readable, an image file will display a random combination of colors if it opens at all and an archive will be impossible to unpack, so you risk sacrificing your site content. Although the most widely used server file systems include various checks, they are likely to fail to detect some problem early enough or require a long period of time to check all of the files and the web server will not be operational for the time being.

No Data Corruption & Data Integrity in Shared Hosting

We have tackled the issue of silent data corruption on all of our shared hosting servers by using the leading-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one in existence which checks all files instantly by employing a checksum - a digital identifier that's 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 constantly compares the checksum of all files and when any file is detected as damaged, it is replaced right away with a good copy from some other disk. As this happens in real time, there's no risk that a damaged file may remain or may be copied on the other SSDs. ZFS needs a lot of physical memory to carry out the real-time checks and the benefit of our cloud web hosting platform is that we take advantage of multiple powerful servers working together. In case you host your sites with us, your information will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

In case you acquire one of our semi-dedicated server packages, you won't have to be concerned about silent data corruption as we use ZFS - a high level file system which checks all of the files in real time. Every time you upload a file to your web hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synced between a number of SSD drives for redundancy, so if a drive fails, the other ones will take control. ZFS compares the checksum of all copies on the different drives and if it detects a damaged copy, it replaces it with a healthy one from another drive. This happens in real time, so there will be no danger for any part of your content at any time. In contrast, all of the other file systems execute checks only after a system failure, but since they don't use anything similar to the checksums which ZFS uses, they won't detect silently corrupted files, so a corrupted copy could be replicated on the rest of the disks as well and you can lose crucial data. As this is not the case with ZFS, we are able to warrant the integrity of each and every file you upload no matter what.