Data corruption is the damage of info due to various hardware or software fails. Once a file gets damaged, it will no longer work accurately, so an app will not start or will give errors, a text file shall be partially or entirely unreadable, an archive file will be impossible to open and then unpack, etc. Silent data corruption is the process of data getting damaged without any acknowledgement by the system or an administrator, which makes it a significant problem for website hosting servers as fails are more likely to happen on bigger hard disks where large volumes of info are located. If a drive is a part of a RAID and the info on it is duplicated on other drives for redundancy, it is likely that the bad file will be treated as a healthy one and it'll be duplicated on all the drives, making the damage permanent. Lots of the file systems that run on web servers these days often are not able to find corrupted files right away or they need time-consuming system checks through which the server isn't operational.
No Data Corruption & Data Integrity in Cloud Hosting
If you host your websites in a cloud hosting
account with our firm, you won't need to worry about any of your data ever getting corrupted. We can ensure that as our cloud hosting platform works with the advanced ZFS file system. The latter is the only file system which uses checksums, or unique digital fingerprints, for every single file. Any information that you upload will be kept in a RAID i.e. simultaneously on a number of SSD drives. All file systems synchronize the files between the different drives with this kind of a setup, but there is no real guarantee that a file won't get corrupted. This may occur throughout the writing process on any drive and then a corrupted copy may be copied on the rest of the drives. What is different on our platform is that ZFS analyzes the checksums of all files on all the drives in real time and in the event that a corrupted file is located, it's substituted with a good copy with the correct checksum from another drive. By doing this, your data will remain undamaged no matter what, even if a whole drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
If you buy one of our semi-dedicated server
solutions, you won't need to be concerned about silent data corruption because we use ZFS - a high level file system which keeps track of all files in real time. Every time you upload a file to your hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synced between a couple of SSD drives for redundancy, so if one drive fails, the other ones will take over. ZFS compares the checksum of all of the copies on the different drives and if it detects a damaged copy, it replaces it with a healthy one from a different drive. This happens in real time, so there will be no danger for any part of your content at any moment. By comparison, all of the other file systems perform checks only after a system malfunction, but since they do not use anything similar to the checksums that ZFS uses, they cannot detect silently corrupted files, so a bad copy could be replicated on the remaining drives as well and you could lose critical information. As this is not the case with ZFS, we can guarantee the integrity of each and every file you upload no matter what.