Data Corruption

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Data corruption is the unintentional modification of a file or the loss of information which usually occurs during reading or writing. The reason could be hardware or software fail, and as a consequence, a file can become partially or entirely corrupted, so it will no longer function correctly as its bits will be scrambled or missing. An image file, for example, will no longer show a real image, but a random combination of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etcetera. When such a problem appears and it is not identified by the system or by an admin, the data will be corrupted silently and when this happens on a drive which is a part of a RAID array where the data is synchronized between different drives, the corrupted file will be replicated on all other drives and the harm will be long term. Many commonly used file systems either do not offer real-time checks or do not have good ones that will detect an issue before the damage is done, so silent data corruption is a common matter on internet hosting servers where huge volumes of information are stored.

No Data Corruption & Data Integrity in Cloud Web Hosting

We warrant the integrity of the data uploaded in every cloud web hosting account that is created on our cloud platform because we use the advanced ZFS file system. The latter is the only one which was designed to avoid silent data corruption thanks to a unique checksum for each file. We will store your data on multiple SSD drives that work in a RAID, so identical files will be accessible on several places at once. ZFS checks the digital fingerprint of all files on all drives in real time and in the event that the checksum of any file differs from what it should be, the file system replaces that file with a healthy version from a different drive inside the RAID. No other file system uses checksums, so it is possible for data to get silently corrupted and the bad file to be reproduced on all drives over time, but since this can never happen on a server using ZFS, you don't have to worry about the integrity of your data.

No Data Corruption & Data Integrity in Semi-dedicated Servers

We've avoided any risk of files getting damaged silently as the servers where your semi-dedicated server account will be created work with a powerful file system called ZFS. Its basic advantage over other file systems is that it uses a unique checksum for every single file - a digital fingerprint which is checked in real time. Since we keep all content on a number of SSD drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the remaining drives and the one it has saved. If there's a mismatch, the damaged copy is replaced with a good one from one of the other drives and considering that this happens in real time, there is no chance that a corrupted copy can remain on our web hosting servers or that it could be copied to the other hard disks in the RAID. None of the other file systems include such checks and in addition, even during a file system check right after an unexpected power failure, none of them will find silently corrupted files. In comparison, ZFS doesn't crash after a blackout and the regular checksum monitoring makes a time-consuming file system check unnecessary.