Data corruption is the accidental transformation of a file or the losing of info which usually occurs during reading or writing. The reason could be hardware or software malfunction, and as a result, a file may become partially or fully corrupted, so it'll no longer function as it should since its bits shall be scrambled or lost. An image file, for example, will no longer show an accurate image, but a random combination of colors, an archive will be impossible to unpack because its content will be unreadable, etcetera. When such a problem occurs and it's not found by the system or by an administrator, the data will become corrupted silently and if this happens on a drive which is a part of a RAID array where the data is synced between various drives, the corrupted file will be reproduced on all the other drives and the damage will be permanent. A large number of widespread file systems either do not have real-time checks or do not have high quality ones that will detect a problem before the damage is done, so silent data corruption is a very common issue on internet hosting servers where large amounts of info are kept.
No Data Corruption & Data Integrity in Cloud Website Hosting
We have resolved the issue of silent data corruption on all our cloud website hosting
servers by using the modern Z file system, or ZFS. The latter is better than other file systems as it is the only one out there which checks all of the files instantly by employing a checksum - a digital identifier which is unique for every single file. When you upload content to your account, it will be stored on several SSD drives and constantly synced between them for redundancy. ZFS regularly examines the checksum of all files and in the event that any file is detected as damaged, it's replaced quickly with a good copy from some other disk. As this happens in real time, there is no risk that a damaged file may remain or may be copied on the remaining SSDs. ZFS needs a lot of physical memory in order to execute the real-time checks and the advantage of our cloud web hosting platform is that we take advantage of multiple very powerful servers working together. If you host your sites with us, your information 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 as all of our storage servers use the advanced ZFS file system. What makes the latter unique is that it employs checksums, or digital identifiers, so as to guarantee the integrity of each and every file. When you upload content to your account, it'll be kept on several redundant drives employed in a RAID i.e. the files will be the same across 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 quickly, and if it registers a mismatch, which will indicate that one of the copies is corrupted, it will swap that file with a good copy from one of the other drives. Even if there is an unexpected blackout, the data on the servers won't get corrupted and there won't be any need for a time-consuming system check that 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.