Data corruption is the damage of information because of various hardware or software fails. Once a file gets damaged, it will no longer function correctly, so an app will not start or shall give errors, a text file could be partially or entirely unreadable, an archive file will be impossible to open then unpack, etc. Silent data corruption is the process of data getting harmed without any identification by the system or an administrator, which makes it a significant problem for web hosting servers as problems are very likely to happen on larger in size hard drives where large volumes of information are stored. If a drive is part of a RAID and the info on it is copied on other drives for redundancy, it is more than likely that the bad file will be treated as a healthy one and it'll be duplicated on all drives, making the harm permanent. Lots of the file systems which run on web servers nowadays often are unable to identify corrupted files instantly or they need time-consuming system checks during which the server is not functioning.
No Data Corruption & Data Integrity in Cloud Web Hosting
If you host your websites in a cloud web hosting
account from our firm, you don't need to worry about your data ever getting corrupted. We can guarantee that due to the fact that our cloud hosting platform employs the advanced ZFS file system. The latter is the only file system which uses checksums, or unique digital fingerprints, for each and every file. All data that you upload will be saved in a RAID i.e. simultaneously on a large number of SSDs. All file systems synchronize the files between the separate drives using such a setup, but there is no real warranty that a file will not get corrupted. This may happen at the time of the writing process on each drive and afterwards a corrupted copy may be copied on all other drives. What makes the difference on our platform is the fact that ZFS examines the checksums of all files on all of the drives immediately and when a corrupted file is identified, it's substituted with a good copy with the correct checksum from another drive. This way, your info will remain undamaged no matter what, even if a whole drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
We have avoided any probability of files getting corrupted silently due to the fact that the servers where your semi-dedicated hosting
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 every single file - a digital fingerprint that's checked in real time. Since we save all content on numerous SSD drives, ZFS checks if the fingerprint of a file on one drive matches the one on the rest of the drives and the one it has saved. In case there is a mismatch, the corrupted copy is replaced with a healthy one from one of the other drives and since it happens instantly, there is no chance that a damaged copy can remain on our servers or that it could be copied to the other hard drives in the RAID. None of the other file systems use this kind of checks and in addition, even during a file system check right after a sudden power failure, none of them can find silently corrupted files. In comparison, ZFS doesn't crash after a power loss and the constant checksum monitoring makes a lenghty file system check unnecessary.