The process of files being corrupted 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 since the larger a hard disk is and the more info is placed on it, the more likely it is for data to get corrupted. You will find a couple of fail-safes, but often the data becomes damaged silently, so neither the file system, nor the administrators see a thing. Thus, a corrupted file will be handled as a regular one and if the hard drive 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 get worse. The moment some file gets damaged, it will be partially or completely unreadable, so a text file will not be readable, an image file will show a random blend of colors if it opens at all and an archive will be impossible to unpack, and you risk sacrificing your website content. Although the most commonly used server file systems have various checks, they are likely to fail to detect a problem early enough or require a long amount of time in order to check all the files and the web server will not be operational in the meantime.
No Data Corruption & Data Integrity in Cloud Hosting
We've resolved the matter of silent data corruption on all of our cloud hosting
servers by using the advanced Z file system, or ZFS. The latter is superior to other file systems since it is the only one in existence which checks all of the files instantly by using a checksum - a digital identifier that is unique for every single file. When you upload content to your account, it will be stored on several SSD drives and constantly synchronized between them for redundancy. ZFS constantly examines the checksum of all files and in case any file is detected as damaged, it's replaced quickly with a good copy from another disk. As this happens in real time, there is no risk that a corrupted file may remain or may be duplicated on the rest of the SSDs. ZFS requires a lot 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 powerful servers working together. In case you host your sites with us, your information will be undamaged no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
Your semi-dedicated hosting
account will be shielded from silent data corruption as all of our storage servers work with the efficient ZFS file system. What makes the aforementioned unique is that it employs checksums, or digital identifiers, in order to verify the integrity of every single file. When you upload content to your account, it'll be stored on several redundant drives employed in a RAID i.e. the files will 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 copies in real time, and if it discovers a mismatch, which would indicate that one of the copies is corrupted, it'll replace that file with a healthy copy from one of the other disks. Even if there's an unexpected blackout, the data on the servers won't be corrupted and there will not be any need for a time-consuming system check which other file systems perform after 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.