The process of files getting damaged resulting from some hardware or software failure is called data corruption and this is among the main problems that hosting companies face since the larger a hard disk drive is and the more data is kept on it, the much more likely it is for data to become corrupted. You'll find different fail-safes, still often the info gets damaged silently, so neither the particular file system, nor the administrators notice anything. As a result, a corrupted file will be handled as a regular one and if the HDD is part of a RAID, that file will be copied on all other disk drives. Theoretically, this is for redundancy, but in practice the damage will get worse. The moment a file gets damaged, it will be partially or entirely unreadable, so a text file will no longer be readable, an image file will present a random blend of colors in case it opens at all and an archive will be impossible to unpack, so you risk sacrificing your content. Although the most popular server file systems include various checks, they often fail to find a problem early enough or require an extensive time period in order to check all of the files and the web hosting server will not be operational for the time being.

No Data Corruption & Data Integrity in Cloud Website Hosting

We've dealt with the matter of silent data corruption on our cloud website hosting servers by using the advanced Z file system, or ZFS. The latter is superior to other file systems as it is the only one out there that checks all of the files right away by using a checksum - a digital identifier that's unique for each file. When you upload content to your account, it will be stored on several SSD drives and constantly synchronized between them for redundancy. ZFS regularly compares the checksum of all files and if any file is detected as damaged, it's replaced quickly 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 copied on the remaining SSDs. ZFS requires a lot of physical memory in order to execute the real-time checks and the benefit of our cloud website hosting platform is that we take advantage of multiple powerful servers working together. In case you host your Internet sites with us, your info will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

If you get one of our semi-dedicated hosting plans, you won't need to be concerned about silent data corruption because we use ZFS - a high level file system that checks all of the files in real time. Each time you upload a file to your account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. This file will be synchronized between multiple 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 in case it detects a corrupted copy, it replaces it with a healthy one from another drive. This is done in real time, so there will be no risk for any part of your content at any time. By comparison, alternative file systems carry out checks after a system failure, but since they don't use anything similar to the checksums which ZFS uses, they cannot detect silently corrupted files, so a bad copy could be replicated on the remaining disks as well and you may lose critical data. Because this is not the case with ZFS, we're able to warrant the integrity of each file you upload no matter what.