Data corruption is the accidental transformation of a file or the losing of info that usually occurs during reading or writing. The reason can be hardware or software malfunction, and consequently, a file may become partially or completely corrupted, so it will no longer function correctly since its bits will be scrambled or lacking. An image file, for example, will no longer show an accurate image, but a random combination of colors, an archive will be impossible to unpack because its content will be unreadable, etc. In the event that this kind of a problem appears and it's not identified by the system or by an administrator, the data will be corrupted silently and in case this happens on a disk drive which is a part of a RAID array where the information is synchronized between different drives, the corrupted file will be replicated on all of the other drives and the damage will become long term. A large number of widespread file systems either don't have real-time checks or don't have high quality ones which can detect an issue before the damage is done, so silent data corruption is a very common problem on hosting servers where huge volumes of data are kept.

No Data Corruption & Data Integrity in Cloud Web Hosting

We've dealt with the matter of silent data corruption on all of our cloud web hosting servers by using the leading-edge Z file system, or ZFS. The latter is more advanced than other file systems since it is the only one on the market which checks all the files instantly by using a checksum - a digital identifier that is unique for each and every file. When you upload content to your account, it'll be stored on several SSD drives and constantly synced between them for redundancy. ZFS constantly analyzes the checksum of all files and when any file is detected as corrupted, it is replaced quickly 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 lots of physical memory in order to carry out the real-time checks and the advantage of our cloud web hosting platform is that we employ multiple powerful servers working together. If you host your websites with us, your data will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

In case you obtain one of our semi-dedicated server plans, you will not need to be concerned about silent file corruption because we use ZFS - a high level file system which monitors all of the files in real time. Each 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 a number of SSD drives for redundancy, so if a drive fails, the other ones will take over. ZFS compares the checksum of all copies on the different drives and in case 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 moment. By comparison, all of the other file systems carry out checks after a system failure, 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 other disks as well and you can lose important information. As this is not the case with ZFS, we are able to guarantee the integrity of every single file you upload no matter what.