Data corruption is the damage of information due to various software or hardware failures. Once a file is corrupted, it will no longer work correctly, so an application will not start or will give errors, a text file could be partially or entirely unreadable, an archive file will be impossible to open and unpack, etc. Silent data corruption is the process of info getting harmed without any acknowledgement by the system or an administrator, that makes it a significant problem for web hosting servers as fails are much more likely to happen on larger hard disk drives where large volumes of info are located. When a drive is part of a RAID and the data on it is replicated on other drives for redundancy, it is very likely that the damaged file will be treated as a healthy one and it will be duplicated on all the drives, making the damage permanent. A lot of the file systems that run on web servers nowadays often cannot identify corrupted files immediately or they need time-consuming system checks through which the server isn't working.

No Data Corruption & Data Integrity in Web Hosting

We've dealt with the problem of silent data corruption on our web hosting servers by using the leading-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one out there that checks all of the files right away by using a checksum - a digital identifier which is unique for every single file. When you upload content to your account, it'll be stored on several SSD drives and regularly synced between them for redundancy. ZFS constantly analyzes the checksum of all files and when any file is detected as damaged, it's replaced promptly with a good copy from some other disk. As this happens in real time, there is no risk that a bad file may remain or may be copied on the other SSDs. ZFS needs plenty of physical memory in order to carry out 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 intact no matter what.

No Data Corruption & Data Integrity in Semi-dedicated Hosting

Your semi-dedicated hosting account will be resistant to silent data corruption as all our storage servers use the effective ZFS file system. What makes the latter unique is that it uses checksums, or digital identifiers, in order to guarantee the integrity of each file. When you upload content to your account, it will be kept on several redundant drives employed in a RAID i.e. the files will be the same across all drives. All copies of a given file will have the same checksum on all hard disks and ZFS will compare the checksums of the copies in real time, and if it discovers a mismatch, which will indicate that one of the copies is damaged, it'll replace that file with a good copy from one of the other drives. Even if there's a sudden blackout, the data on the servers won't be corrupted and there will not be any need for a time-consuming system check that other file systems perform following some breakdown, prolonging 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.