The process of files getting corrupted resulting from some hardware or software failure is known as data corruption and this is one of the main problems which Internet hosting companies face because the larger a hard disk drive is and the more information is filed on it, the more likely it is for data to get corrupted. There are various fail-safes, still often the information becomes corrupted silently, so neither the particular file system, nor the administrators see anything. Thus, a bad file will be handled as a regular one and if the HDD is part of a RAID, that file will be duplicated on all other drives. Theoretically, this is for redundancy, but in practice the damage will get worse. Once some file gets damaged, it will be partially or entirely unreadable, so a text file will no longer be readable, an image file will show a random combination of colors if it opens at all and an archive shall be impossible to unpack, and you risk sacrificing your website content. Although the most popular server file systems include various checks, they often fail to find some problem early enough or require a long time period in order to check all files and the hosting server will not be operational for the time being.
No Data Corruption & Data Integrity in Shared Hosting
If you host your Internet sites in a shared hosting account from our company, you do not have to worry about your data ever getting corrupted. We can ensure that since our cloud hosting platform employs the leading-edge ZFS file system. The latter is the only file system which works with checksums, or unique digital fingerprints, for every single file. Any information that you upload will be kept in a RAID i.e. simultaneously on numerous SSD drives. All file systems synchronize the files between the different drives with this kind of a setup, but there is no real warranty that a file will not get corrupted. This could occur during the writing process on each drive and afterwards a damaged copy can be copied on all other drives. What is different on our platform is that ZFS compares the checksums of all files on all the drives live and if a corrupted file is found, it's swapped with a good copy with the correct checksum from some other drive. That way, your data will remain undamaged no matter what, even if an entire drive fails.