Data corruption is the damage of information caused by various hardware or software failures. After a file is damaged, it will no longer function properly, so an app will not start or will give errors, a text file shall be partially or completely unreadable, an archive file will be impossible to open then unpack, etc. Silent data corruption is the process of data getting damaged without any identification by the system or an admin, that makes it a significant problem for website hosting servers as fails are more likely to occur on bigger hard disks where vast volumes of info are kept. When a drive is a part of a RAID and the info on it is replicated on other drives for redundancy, it's likely that the damaged file will be treated as an ordinary one and it'll be duplicated on all of the drives, making the harm permanent. A huge number of the file systems that operate on web servers these days often are unable to discover corrupted files right away or they need time-consuming system checks during which the server isn't working.

No Data Corruption & Data Integrity in Cloud Hosting

We've resolved the issue of silent data corruption on our cloud hosting servers by using the cutting-edge Z file system, or ZFS. The latter is superior to other file systems since it is the only one on the market 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 will be stored on several SSD drives and frequently synchronized between them for redundancy. ZFS constantly analyzes the checksum of all files and in case any file is detected as corrupted, it's replaced immediately with a good copy from another disk. As this happens in real time, there's no risk that a damaged file may remain or may be duplicated on the rest of the SSDs. ZFS needs plenty of physical memory in order to perform the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple very powerful servers working together. In case you host your sites with us, your info will be undamaged no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Servers

Your semi-dedicated server account will be shielded from silent data corruption as all of our storage servers make use of the advanced ZFS file system. What makes the aforementioned unique is that it employs checksums, or digital identifiers, to guarantee the integrity of each file. When you upload content to your account, it'll be saved on a couple of redundant drives employed in a RAID i.e. the files shall be the same across all drives. All the copies of a given file will have the same checksum on all hard drives and ZFS will compare the checksums of the duplicates quickly, and if it identifies a mismatch, which would indicate that one of the copies is corrupted, it will swap that file with a healthy copy from one of the other drives. Even if there's an unexpected blackout, the data on the servers will not be corrupted and there will not be any need for a time-consuming system check which other file systems perform after some malfunction, lengthening the time needed for the server to get back online. ZFS is the only file system which can truly protect your content from silent data corruption.