Data corruption is the damage of info due to various software or hardware fails. When a file is corrupted, it will no longer function correctly, so an app will not start or shall give errors, a text file will be partially or fully unreadable, an archive file will be impossible to open and unpack, etc. Silent data corruption is the process of info getting damaged without any acknowledgement by the system or an administrator, which makes it a serious problem for hosting servers as failures are very likely to happen on larger hard drives where large volumes of information are placed. In case a drive is part of a RAID and the data on it is copied on other drives for redundancy, it is more than likely that the bad file will be treated as an ordinary one and it will be duplicated on all drives, making the harm permanent. A huge number of the file systems that operate on web servers today often are not able to identify corrupted files in real time or they need time-consuming system checks during which the server is not operational.

No Data Corruption & Data Integrity in Shared Website Hosting

The integrity of the data that you upload to your new shared website hosting account shall be guaranteed by the ZFS file system that we take advantage of on our cloud platform. Most internet hosting providers, like our company, use multiple hard drives to keep content and considering that the drives work in a RAID, exactly the same data is synchronized between the drives all of the time. If a file on a drive becomes damaged for whatever reason, yet, it's very likely that it will be reproduced on the other drives because alternative file systems do not include special checks for this. Unlike them, ZFS employs a digital fingerprint, or a checksum, for each file. In the event that a file gets corrupted, its checksum won't match what ZFS has as a record for it, so the damaged copy shall be replaced with a good one from another hard disk. As this happens instantly, there's no possibility for any of your files to ever get corrupted.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We've avoided any chance of files getting damaged silently since the servers where your semi-dedicated server account will be created use a powerful file system known as ZFS. Its main advantage over other file systems is that it uses a unique checksum for each file - a digital fingerprint which is checked in real time. As we store all content on a number of SSD drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the other drives and the one it has stored. In case there is a mismatch, the bad copy is replaced with a good one from one of the other drives and considering that it happens right away, there is no chance that a corrupted copy could remain on our website hosting servers or that it can be duplicated to the other hard drives in the RAID. None of the other file systems employ this kind of checks and what is more, even during a file system check right after an unexpected electrical power failure, none of them will identify silently corrupted files. In contrast, ZFS does not crash after a blackout and the regular checksum monitoring makes a lenghty file system check obsolete.