Data corruption is the accidental transformation of a file or the losing of information that often occurs during reading or writing. The reason can be hardware or software failure, and due to this fact, a file may become partially or entirely corrupted, so it will no longer work as it should because its bits shall be scrambled or lost. An image file, for instance, will no longer show an authentic image, but a random combination of colors, an archive will be impossible to unpack since its content will be unreadable, etcetera. In case such a problem occurs and it is not recognized by the system or by an administrator, the data will become corrupted silently and if this happens on a disk drive which is a part of a RAID array where the information is synchronized between various drives, the corrupted file shall be reproduced on all the other drives and the harm will be permanent. Numerous popular file systems either do not have real-time checks or don't have high quality ones that will detect a problem before the damage is done, so silent data corruption is a rather common matter on hosting servers where large amounts of data are stored.
No Data Corruption & Data Integrity in Hosting
We've resolved the problem of silent data corruption on our hosting servers by using the amazing Z file system, or ZFS. The latter is more advanced than other file systems because it is the only one in existence that checks all the files in real time by employing a checksum - a digital identifier that's unique for every single file. When you upload content to your account, it'll be stored on several SSD drives and continually synced between them for redundancy. ZFS regularly compares the checksum of all files and in case any file is detected as corrupted, it is replaced quickly with a good copy from some other disk. As this happens in real time, there's no risk that a bad file may remain or may be duplicated on the remaining SSDs. ZFS requires a lot of physical memory to execute the real-time checks and the advantage of our cloud web hosting platform is that we use multiple very powerful servers working together. In case you host your sites with us, your info will be undamaged no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
Your semi-dedicated hosting account will be protected against silent data corruption because all of our storage servers use the effective ZFS file system. What makes the aforementioned 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'll 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 specific file will feature the same checksum on all hard disks and ZFS will compare the checksums of the copies right away, and if it detects a mismatch, that would indicate that one of the copies is damaged, it'll replace that file with a healthy copy from one of the other disks. Even if there is a sudden blackout, 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 breakdown, prolonging the time needed for the server to go back online. ZFS is the file system that can really protect your content from silent data corruption.