Data corruption is the accidental transformation of a file or the loss of information that usually occurs during reading or writing. The reason could be hardware or software failure, and as a result, a file could become partially or completely corrupted, so it'll no longer work as it should because its bits will be scrambled or lacking. An image file, for example, will no longer display a real image, but a random mix of colors, an archive will be impossible to unpack as its content will be unreadable, and so on. When this kind of an issue occurs and it's not identified by the system or by an admin, the data will become corrupted silently and in case this happens on a drive which is part of a RAID array where the information is synced between different drives, the corrupted file will be reproduced on all other drives and the harm will become permanent. A large number of widespread file systems either don't offer real-time checks or do not have high quality ones which can detect an issue before the damage is done, so silent data corruption is a common matter on web hosting servers where large amounts of info are stored.

No Data Corruption & Data Integrity in Cloud Hosting

We've resolved the matter of silent data corruption on all our cloud hosting servers by using the advanced Z file system, or ZFS. The latter is better than other file systems as it is the only one in existence which checks all the files immediately by using a checksum - a digital identifier which is unique for each and every file. When you upload content to your account, it'll be stored on several SSD drives and frequently synchronized between them for redundancy. ZFS regularly examines the checksum of all files and if any file is detected as damaged, it's replaced promptly with a good copy from another disk. As this happens in real time, there's no risk that a bad file may remain or may be copied on the rest of the SSDs. ZFS needs plenty of physical memory to execute the real-time checks and the benefit of our cloud website hosting platform is that we take advantage of multiple powerful servers working together. If you host your websites with us, your data will be intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

In case you get one of our semi-dedicated hosting plans, you will not have to worry about silent file corruption since we use ZFS - a high level file system which monitors all 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. This file will be synced between several SSD drives for redundancy, so if one 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 a different drive. This is done right away, so there will be no risk for any part of your content at any time. In contrast, all of the other file systems perform checks after a system failure, but since they don't use anything similar to the checksums which ZFS uses, they are unable to detect silently corrupted files, so a corrupted copy can be replicated on the remaining disks as well and you could lose precious data. Because this is not the case with ZFS, we're able to guarantee the integrity of each and every file you upload no matter what.