Data corruption is the accidental modification of a file or the losing of info that usually occurs during reading or writing. The reason could be hardware or software failure, and for that reason, a file can become partially or completely corrupted, so it will no longer function as it should since its bits shall be scrambled or lacking. An image file, for example, will no longer present a real image, but a random combination of colors, an archive will be impossible to unpack since its content will be unreadable, etcetera. If this kind of a problem occurs and it's not found by the system or by an admin, the data will be corrupted silently and when this happens on a drive which is part of a RAID array where the info is synced between various drives, the corrupted file shall be replicated on all the other drives and the damage will be long term. A number of widespread file systems either do not have real-time checks or do not have high quality ones that will detect a problem before the damage is done, so silent data corruption is a rather common issue on web hosting servers where huge volumes of info are kept.
No Data Corruption & Data Integrity in Cloud Hosting
In case you host your Internet sites in a cloud hosting
account with our firm, you won't have to worry about any of your data ever getting damaged. We can ensure that due to the fact that our cloud hosting platform uses the state-of-the-art ZFS file system. The aforementioned is the only file system that uses checksums, or unique digital fingerprints, for each and every file. Any kind of information that you upload will be stored in a RAID i.e. simultaneously on a number of SSDs. Many file systems synchronize the files between the different drives using such a setup, but there's no real warranty that a file won't get corrupted. This could happen during the writing process on any drive and afterwards a damaged copy may be copied on the rest of the drives. What makes the difference on our platform is that ZFS analyzes the checksums of all files on all drives right away and in the event that a corrupted file is found, it's substituted with a good copy with the correct checksum from some other drive. That way, your information will continue to be unharmed no matter what, even if an entire drive fails.
No Data Corruption & Data Integrity in Semi-dedicated Servers
In case you go for one of our semi-dedicated server
solutions, you will not have to worry about silent data corruption as we use ZFS - an advanced file system which checks all of the files in real time. Every time you upload a file to your website hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. The file will be synchronized 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 when it detects a corrupted copy, it replaces it with a healthy one from a different drive. This is done right away, so there will be no risk for any part of your content at any time. In comparison, all the other file systems execute checks after a system breakdown, but since they do not use anything similar to the checksums which ZFS uses, they will not detect silently corrupted files, so a bad copy may be replicated on the remaining disks as well and you could lose precious data. As this is not the case with ZFS, we are able to warrant the integrity of every single file you upload no matter what.