Data corruption is the damage of data due to various hardware or software failures. After a file is corrupted, it will no longer work as it should, so an app will not start or shall give errors, a text file could be partially or entirely unreadable, an archive will be impossible to open and unpack, etc. Silent data corruption is the process of info getting harmed without any identification by the system or an admin, that makes it a significant problem for website hosting servers as failures are more likely to happen on larger hard drives where vast volumes of info are located. In case a drive is a part of a RAID and the data on it is duplicated on other drives for redundancy, it's very likely that the damaged file will be treated as a healthy one and will be duplicated on all of the drives, making the damage permanent. A huge number of the file systems which operate on web servers today often are unable to find corrupted files immediately or they need time-consuming system checks through which the server is not working.
No Data Corruption & Data Integrity in Cloud Hosting
In case you host your Internet sites in a cloud hosting
account from our company, you will not have to worry about your data ever getting damaged. We can guarantee that as our cloud hosting platform employs the amazing 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 saved in a RAID i.e. simultaneously on numerous SSDs. All the file systems synchronize the files between the different drives with this type of a setup, but there's no real guarantee that a file will not get corrupted. This may happen during the writing process on each drive and then a damaged copy may be copied on all other drives. What makes the difference on our platform is that ZFS analyzes the checksums of all files on all the drives immediately and when a corrupted file is discovered, it is swapped with a good copy with the correct checksum from another drive. That way, your information will stay undamaged no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
If you acquire one of our semi-dedicated hosting
packages, you won't have to be concerned about silent file corruption since we use ZFS - a high level file system which checks 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. That file will be synced between a number of SSD drives for redundancy, so if a drive fails, the other ones will take over. ZFS compares the checksum of all the copies on the different drives and if it detects a corrupted copy, it replaces it with a healthy one from another drive. This happens right away, so there will be no risk for any part of your content at any time. In contrast, alternative file systems carry out checks after a system breakdown, but since they don't use anything similar to the checksums which ZFS uses, they won't detect silently corrupted files, so a corrupted copy could be replicated on the other drives as well and you can lose crucial data. Because this isn't the case with ZFS, we warrant the integrity of each file you upload no matter what.