Data corruption is the damage of data because of various hardware or software problems. When a file is damaged, it will no longer work correctly, so an application will not start or shall give errors, a text file could be partially or completely unreadable, an archive will be impossible to open and then unpack, etc. Silent data corruption is the process of data getting harmed without any identification by the system or an administrator, that makes it a significant problem for website hosting servers as problems are more likely to happen on larger hard disk drives where significant volumes of info are placed. If a drive is part of a RAID and the info on it is replicated on other drives for redundancy, it's more than likely that the damaged file will be treated as a healthy one and will be copied on all of the drives, making the damage permanent. A huge number of the file systems that operate on web servers today often cannot identify corrupted files right away or they need time-consuming system checks through which the server isn't functioning.

No Data Corruption & Data Integrity in Hosting

We've resolved the problem of silent data corruption on our hosting servers by using the cutting-edge Z file system, or ZFS. The latter is more advanced than other file systems as it is the only one on the market that checks all of the files immediately by using a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it will be stored on several SSD drives and frequently synced between them for redundancy. ZFS constantly examines the checksum of all files and in the event that any file is detected as damaged, it is replaced immediately with a good copy from some other disk. As this happens in real time, there is no risk that a corrupted file may remain or may be copied on the rest of the SSDs. ZFS requires a lot of physical memory to perform the real-time checks and the advantage of our cloud website hosting platform is that we employ multiple 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

Your semi-dedicated server account will be shielded from silent data corruption as all our storage servers employ the state-of-the-art ZFS file system. What makes the latter unique is that it employs checksums, or digital identifiers, so as to verify the integrity of every single file. When you upload content to your account, it will be stored on several redundant drives working in a RAID i.e. the files will be the same across all disks. All of the copies of a particular file will feature the same checksum on all hard drives and ZFS will compare the checksums of the duplicates quickly, so if it identifies a mismatch, which will indicate that one of the copies is corrupted, it will substitute that file with a healthy copy from one of the other drives. Even if there is an unforeseen blackout, the data on the servers will not become corrupted and there will not be any need for a time-consuming system check that other file systems perform after some breakdown, lengthening the time needed for the server to go back online. ZFS is the sole file system which can truly protect your content from silent data corruption.