Data corruption is the damage of information because of various software or hardware fails. The moment a file is damaged, it will no longer work accurately, so an app will not start or shall give errors, a text file can be partially or fully unreadable, an archive file will be impossible to open and then unpack, etc. Silent data corruption is the process of information getting damaged without any identification by the system or an administrator, that makes it a significant problem for website hosting servers as problems are very likely to happen on larger hard disk drives where significant volumes of information are kept. If a drive is part of a RAID and the data on it is duplicated on other drives for redundancy, it's likely that the damaged file will be treated as a good one and will be duplicated on all of the drives, making the damage permanent. Lots of the file systems that run on web servers these days often cannot find corrupted files instantly or they need time-consuming system checks during which the server isn't operational.
No Data Corruption & Data Integrity in Shared Website Hosting
The integrity of the data that you upload to your new shared website hosting
account shall be ensured by the ZFS file system which we take advantage of on our cloud platform. The vast majority of internet hosting providers, like our company, use multiple hard drives to store content and since the drives work in a RAID, exactly the same info is synchronized between the drives all of the time. When a file on a drive is damaged for whatever reason, however, it is more than likely that it will be duplicated on the other drives since alternative file systems do not feature special checks for that. In contrast to them, ZFS uses a digital fingerprint, or a checksum, for each and every file. In the event that a file gets damaged, its checksum will not match what ZFS has as a record for it, and the damaged copy will be substituted with a good one from a different disk drive. Due to the fact that this happens immediately, there is no risk for any of your files to ever get corrupted.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
If you purchase one of our semi-dedicated hosting
solutions, you won't need to worry about silent file corruption since we use ZFS - a high level file system that checks all the files in real time. Every time you upload a file to your web 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 a 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 corrupted copy, it replaces it with a healthy one from another drive. This is done instantly, so there will be no risk for any part of your content at any time. In comparison, alternative file systems carry out checks only after a system failure, but since they don't use anything similar to the checksums that ZFS uses, they can't detect silently corrupted files, so a corrupted copy can be replicated on the rest of the drives as well and you may lose critical data. Since this isn't the case with ZFS, we're able to guarantee the integrity of each file you upload no matter what.