The process of files being damaged resulting from some hardware or software failure is known as data corruption and this is one of the main problems which web hosting companies face since the larger a hard drive is and the more info is kept on it, the more likely it is for data to become corrupted. There are different fail-safes, but often the data becomes corrupted silently, so neither the particular file system, nor the admins see anything. Consequently, a damaged file will be handled as a standard one and if the hard disk is part of a RAID, the file will be copied on all other drives. In theory, this is for redundancy, but in reality the damage will get worse. When a given file gets corrupted, it will be partly or entirely unreadable, so a text file will not be readable, an image file will show a random combination of colors if it opens at all and an archive will be impossible to unpack, and you risk sacrificing your site content. Although the most widespread server file systems include various checks, they often fail to discover some problem early enough or require a long time period to check all the files and the web hosting server will not be functional for the time being.
No Data Corruption & Data Integrity in Cloud Hosting
If you host your websites in a cloud hosting
account from our firm, you do not need to worry about any of your data ever getting corrupted. We can guarantee that since our cloud hosting platform works with the advanced ZFS file system. The latter is the only file system that uses checksums, or unique digital fingerprints, for each file. Any data that you upload will be stored in a RAID i.e. simultaneously on multiple SSDs. All file systems synchronize the files between the different drives using this type of a setup, but there is no real guarantee that a file will not be corrupted. This can occur during the writing process on each drive and afterwards a corrupted copy may be copied on the other drives. What makes the difference on our platform is the fact that ZFS analyzes the checksums of all files on all drives in real time and in the event that a corrupted file is discovered, it's swapped with a good copy with the correct checksum from another drive. In this way, your information will continue to be intact no matter what, even if a whole drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
We have avoided any chance of files getting damaged silently since the servers where your semi-dedicated server
account will be created work with a powerful file system called ZFS. Its advantage over various other file systems is that it uses a unique checksum for every single file - a digital fingerprint that's checked in real time. As we save all content on multiple SSD drives, ZFS checks whether the fingerprint of a file on one drive matches the one on the rest of the drives and the one it has stored. In case there's a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and because this happens instantly, there is no chance that a damaged copy can remain on our website hosting servers or that it can be duplicated to the other hard disks in the RAID. None of the other file systems employ this type of checks and what is more, even during a file system check right after a sudden power loss, none of them can detect silently corrupted files. In contrast, ZFS doesn't crash after a power failure and the constant checksum monitoring makes a lenghty file system check unneeded.