The process of files being damaged owing to some hardware or software failure is known as data corruption and this is among the main problems that hosting companies face because the larger a hard disk drive is and the more info is kept on it, the more likely it is for data to be corrupted. You will find different fail-safes, still often the information becomes damaged silently, so neither the particular file system, nor the administrators notice a thing. As a result, a bad file will be handled as a good one and if the hard disk is part of a RAID, that particular file will be copied on all other disk drives. In theory, this is for redundancy, but in practice the damage will get even worse. When a given file gets damaged, it will be partly or completely unreadable, which means that a text file will no longer be readable, an image file will display a random combination of colors in case it opens at all and an archive will be impossible to unpack, so you risk sacrificing your website content. Although the most popular server file systems include various checks, they often fail to detect a problem early enough or require an extensive time period to be able to check all of the files and the hosting server will not be operational in the meantime.

No Data Corruption & Data Integrity in Cloud Hosting

We have tackled the issue of silent data corruption on all of our cloud hosting servers by using the advanced Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one in existence which checks all files right away by employing 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 continually synchronized between them for redundancy. ZFS constantly examines the checksum of all files and if any file is detected as damaged, it is 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 duplicated on the rest of the SSDs. ZFS needs a lot of physical memory in order to execute the real-time checks and the advantage of our cloud website hosting platform is that we work with 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 Hosting

We've avoided any risk of files getting damaged silently since the servers where your semi-dedicated hosting account will be created take advantage of a powerful file system called ZFS. Its basic advantage over other file systems is that it uses a unique checksum for each and every file - a digital fingerprint which is checked in real time. As we store all content on multiple SSD drives, ZFS checks whether the fingerprint of a file on one drive corresponds to the one on the rest of the drives and the one it has saved. In the event that there is a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and since it happens right away, there's no chance that a corrupted copy can remain on our web servers or that it could be copied to the other drives in the RAID. None of the other file systems work with this kind of checks and furthermore, even during a file system check right after a sudden power loss, none of them can find silently corrupted files. In contrast, ZFS does not crash after an electrical power failure and the regular checksum monitoring makes a lenghty file system check unneeded.