Data corruption is the damage of info caused by various software or hardware problems. Once a file gets corrupted, it will no longer work correctly, so an application 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 unpack, etc. Silent data corruption is the process of information getting harmed without any acknowledgement by the system or an admin, which makes it a serious problem for website hosting servers as fails are very likely to happen on bigger hard disks where vast volumes of information are located. In case a drive is a part of a RAID and the info on it is duplicated on other drives for redundancy, it's more than likely that the bad file will be treated as a good one and it will be copied on all the drives, making the harm permanent. A huge number of the file systems that operate on web servers nowadays often cannot recognize corrupted files right away or they need time-consuming system checks during which the server is not functioning.
No Data Corruption & Data Integrity in Cloud Hosting
In case you host your Internet sites in a cloud hosting
account with our company, you will not have to worry about your data ever getting damaged. 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 each and every file. All the data that you upload will be stored in a RAID i.e. simultaneously on a large number of SSDs. All of the file systems synchronize the files between the different drives with such a setup, but there's no real guarantee that a file will not be corrupted. This could happen at the time of the writing process on any drive and then a bad copy may be copied on all other drives. What is different on our platform is the fact that ZFS compares the checksums of all files on all of the drives right away and in case a corrupted file is identified, it is substituted with a good copy with the correct checksum from another drive. This way, your information will stay intact no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
If you purchase one of our semi-dedicated server
plans, you won't need to be concerned about silent data corruption since we use ZFS - a high level file system that monitors all the files in real time. Each time you upload a file to your account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synchronized between several SSD drives for redundancy, so if a drive fails, the other ones will take control. 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 another drive. This happens right away, so there will be no threat for any part of your content at any time. In comparison, other file systems carry out checks after a system breakdown, but since they don't use anything similar to the checksums that ZFS uses, they won't detect silently corrupted files, so a bad copy could be replicated on the other drives as well and you could lose critical info. Since this isn't the case with ZFS, we can warrant the integrity of each and every file you upload no matter what.