Data corruption is the unintentional transformation of a file or the losing of information that often occurs during reading or writing. The reason could be hardware or software fail, and consequently, a file may become partially or fully corrupted, so it will no longer work correctly as its bits shall be scrambled or missing. An image file, for instance, will no longer show a real image, but a random mix of colors, an archive will be impossible to unpack since its content will be unreadable, etcetera. In case this kind of a problem occurs and it is not recognized by the system or by an administrator, the data will get corrupted silently and when this happens on a drive that's part of a RAID array where the information is synced between various different drives, the corrupted file will be copied on all of the other drives and the harm will be permanent. Numerous popular file systems either don't offer real-time checks or do not have high quality ones that can detect a problem before the damage is done, so silent data corruption is a rather common matter on hosting servers where large volumes of information are kept.
No Data Corruption & Data Integrity in Shared Web Hosting
We guarantee the integrity of the data uploaded in every shared web hosting
account which is created on our cloud platform because we use the advanced ZFS file system. The aforementioned is the only one that was designed to prevent silent data corruption thanks to a unique checksum for each file. We will store your information on a large number of SSD drives which function in a RAID, so the exact same files will be accessible on several places concurrently. ZFS checks the digital fingerprint of all the files on all drives in real time and in the event that the checksum of any file is different from what it should be, the file system swaps that file with a healthy copy from some other drive in the RAID. There's no other file system which uses checksums, so it's possible for data to get silently damaged and the bad file to be duplicated on all drives over time, but since that can never happen on a server running ZFS, you will not have to concern yourself with the integrity of your info.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
In case you get one of our semi-dedicated hosting
plans, you won't need to be concerned about silent file corruption because we use ZFS - a high level file system that keeps track of all the files in real time. Each time you upload a file to your web hosting account, ZFS will assign a unique digital fingerprint to it - the so-called checksum. This file will be synchronized between a couple of 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 when it detects a damaged copy, it replaces it with a healthy one from another drive. This is done right away, so there will be no threat for any part of your content at any time. In contrast, other file systems perform checks after a system failure, but since they don't use anything similar to the checksums that ZFS uses, they are unable to detect silently corrupted files, so a bad copy may be replicated on the remaining drives as well and you can lose important info. Since this is not the case with ZFS, we can guarantee the integrity of each file you upload no matter what.