The process of files getting damaged as a result of some hardware or software failure is called data corruption and this is among the main problems that Internet hosting companies face as the larger a hard drive is and the more information is placed on it, the much more likely it is for data to become corrupted. You can find a couple of fail-safes, yet often the information gets corrupted silently, so neither the particular file system, nor the administrators detect a thing. Thus, a corrupted file will be handled as a good one and if the HDD is a part of a RAID, that particular file will be duplicated on all other drives. In theory, this is for redundancy, but in reality the damage will get even worse. Once some file gets damaged, it will be partially or entirely unreadable, so a text file will no longer be readable, an image file will display a random blend of colors if it opens at all and an archive shall be impossible to unpack, and you risk losing your content. Although the most widespread server file systems include various checks, they quite often fail to detect a problem early enough or require a long time period in order to check all files and the web server will not be functional in the meantime.

No Data Corruption & Data Integrity in Shared Web Hosting

We have dealt with the issue of silent data corruption on our shared web hosting servers by using the advanced Z file system, or ZFS. The latter is better than other file systems because it is the only one out there which checks all the 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 synchronized between them for redundancy. ZFS regularly examines the checksum of all files and in the event that 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 bad file may remain or may be copied on the other SSDs. ZFS needs plenty of physical memory to perform the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple powerful servers working together. If you host your websites with us, your info will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

If you obtain one of our semi-dedicated server packages, you will not have to be concerned about silent data corruption as we use ZFS - an advanced file system which keeps track of all files in real time. Whenever you upload a file to your website hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. This file will be synchronized between a number of SSD drives for redundancy, so if a drive fails, the other ones will take over. ZFS compares the checksum of all copies on the different drives and when 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 moment. By comparison, alternative file systems carry out checks after a system breakdown, 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 may be replicated on the rest of the disks as well and you may lose critical information. Because this is not the case with ZFS, we are able to guarantee the integrity of each file you upload no matter what.