The process of files being corrupted as a consequence of some hardware or software failure is called data corruption and this is among the main problems that Internet hosting companies face as the larger a hard disk drive is and the more information is stored on it, the much more likely it is for data to be corrupted. You will find various fail-safes, yet often the data is damaged silently, so neither the file system, nor the admins notice anything. As a result, a bad file will be treated as a standard one and if the hard disk is a part of a RAID, the file will be copied on all other disk drives. In theory, this is for redundancy, but in reality the damage will be worse. Once some file gets corrupted, it will be partly or entirely unreadable, therefore a text file will not be readable, an image file will show a random combination of colors if it opens at all and an archive will be impossible to unpack, and you risk losing your content. Although the most widely used server file systems have various checks, they often fail to discover some problem early enough or require a long time period in order to check all the files and the web server will not be functional in the meantime.
No Data Corruption & Data Integrity in Shared Hosting
We warrant the integrity of the information uploaded in every shared hosting
account that is made on our cloud platform because we employ the advanced ZFS file system. The latter is the only one which was designed to avert silent data corruption using a unique checksum for each file. We shall store your data on multiple SSD drives that function in a RAID, so exactly the same files will exist on several places at the same time. ZFS checks the digital fingerprint of all files on all the drives in real time and in the event that the checksum of any file differs from what it has to be, the file system replaces that file with a healthy copy from a different drive in the RAID. There's no other file system which uses checksums, so it is possible for data to get silently corrupted and the bad file to be duplicated on all drives with time, but since this can never happen on a server using ZFS, you don't have to worry about the integrity of your data.
No Data Corruption & Data Integrity in Semi-dedicated Servers
Your semi-dedicated server
account will be resistant to silent data corruption because all our storage servers make use of the reliable ZFS file system. What makes the aforementioned unique is that it employs checksums, or digital identifiers, in order to ensure the integrity of each file. When you upload content to your account, it'll be placed on a couple of redundant drives in a RAID i.e. the files shall be the same across all disk drives. All of the copies of a specific file will have the same checksum on all drives and ZFS will compare the checksums of the duplicates quickly, and if it finds a mismatch, which would indicate that one of the copies is damaged, it'll substitute that file with a good copy from one of the other drives. Even if there is an unexpected power loss, the data on the servers won't become corrupted and there will not be any need for a time-consuming system check which other file systems perform after some malfunction, extending the time needed for the server to go back online. ZFS is the only file system that can really protect your content from silent data corruption.