The process of files being damaged as a consequence of some hardware or software failure is known as data corruption and this is one of the main problems that Internet hosting companies face because the larger a hard drive is and the more data is kept on it, the much more likely it is for data to be corrupted. You will find different fail-safes, still often the info is corrupted silently, so neither the file system, nor the admins detect anything. Thus, a bad file will be treated as a good one and if the hard disk drive is a part of a RAID, that file will be duplicated on all other drives. In theory, this is done for redundancy, but in practice the damage will get even worse. Once a given file gets corrupted, it will be partly or fully unreadable, therefore a text file will not be readable, an image file will present a random combination of colors in case it opens at all and an archive will be impossible to unpack, and you risk losing your site content. Although the most widely used server file systems include various checks, they often fail to find a problem early enough or require a vast amount of time in order to check all the files and the hosting server will not be functional for the time being.
No Data Corruption & Data Integrity in Hosting
We've resolved the matter of silent data corruption on all our hosting
servers by using the leading-edge Z file system, or ZFS. The latter is superior to other file systems as it is the only one in existence which checks all the files in real time by employing 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 examines the checksum of all files and if any file is detected as corrupted, it is replaced immediately with a good copy from some other disk. As this happens in real time, there's no risk that a corrupted file may remain or may be duplicated on the remaining SSDs. ZFS needs plenty of physical memory in order to perform the real-time checks and the advantage of our cloud hosting platform is that we employ multiple powerful servers working together. If you host your Internet sites with us, your data will be intact no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
Your semi-dedicated hosting
account will be protected against silent data corruption since 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 verify the integrity of every single file. When you upload content to your account, it will be kept on a couple of redundant drives operating in a RAID i.e. the files shall be the same on all disks. All the copies of a specific file will feature the same checksum on all hard drives and ZFS will compare the checksums of the duplicates in real time, and if it finds a mismatch, which will indicate that one of the copies is corrupted, it'll swap that file with a healthy copy from one of the other drives. Even if there's a sudden power loss, the data on the servers will not become corrupted and there won't be any need for a time-consuming system check which other file systems perform following some failure, lengthening the time needed for the server to go back online. ZFS is the file system which can truly protect your content from silent data corruption.