Data corruption is the accidental modification of a file or the losing of information which usually occurs during reading or writing. The reason could be hardware or software fail, and as a result, a file can become partially or completely corrupted, so it'll no longer function correctly because its bits will be scrambled or lost. An image file, for example, will no longer display an authentic image, but a random mix of colors, an archive will be impossible to unpack for the reason that its content will be unreadable, etcetera. In case such an issue occurs and it's not noticed by the system or by an admin, the data will be corrupted silently and in case this happens on a disk drive that is part of a RAID array where the information is synced between various different drives, the corrupted file shall be duplicated on all other drives and the harm will become long term. Many widespread file systems either do not have real-time checks or do not have good ones which will detect a problem before the damage is done, so silent data corruption is a common matter on hosting servers where substantial volumes of data are kept.

No Data Corruption & Data Integrity in Cloud Hosting

We've dealt with the matter of silent data corruption on all our cloud hosting servers by using the amazing Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one out there which checks all the files right away by using a checksum - a digital identifier that's unique for each file. When you upload content to your account, it will be stored on several SSD drives and regularly synced between them for redundancy. ZFS regularly analyzes the checksum of all files and when any file is detected as damaged, it is replaced right away with a good copy from some other disk. As this happens in real time, there's no risk that a corrupted file may remain or may be duplicated on the rest of the SSDs. ZFS requires plenty of physical memory in order to carry out the real-time checks and the benefit of our cloud web hosting platform is that we use multiple very powerful servers working together. In case you host your websites with us, your info will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

If you purchase one of our semi-dedicated server packages, you will not need to worry about silent file corruption as we use ZFS - an advanced file system which monitors all of 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. That file will be synced between several SSD drives for redundancy, so if one drive fails, the other ones will take over. ZFS compares the checksum of all copies on the different drives and when it detects a damaged copy, it replaces it with a healthy one from a different drive. This happens immediately, so there will be no danger for any part of your content at any time. By comparison, all the other file systems carry out checks only after a system breakdown, but since they don't use anything similar to the checksums that ZFS uses, they cannot detect silently corrupted files, so a bad copy could be replicated on the rest of the disks as well and you may lose critical info. As this is not the case with ZFS, we're able to warrant the integrity of each file you upload no matter what.