Data corruption is the damage of data due to various software or hardware problems. After a file is damaged, it will no longer function correctly, so an app will not start or shall give errors, a text file can be partially or entirely unreadable, an archive will be impossible to open then unpack, etc. Silent data corruption is the process of info getting damaged without any identification by the system or an admin, that makes it a significant problem for website hosting servers as problems are much more likely to occur on bigger hard disk drives where considerable volumes of info are stored. If a drive is part of a RAID and the information on it is replicated on other drives for redundancy, it's very likely that the damaged file will be treated as a regular one and will be copied on all drives, making the harm permanent. A lot of the file systems that run on web servers nowadays often cannot identify corrupted files in real time or they need time-consuming system checks through which the server is not functioning.
No Data Corruption & Data Integrity in Website Hosting
We've dealt with the issue of silent data corruption on our website hosting
servers by using the amazing Z file system, or ZFS. The latter is superior to other file systems because it is the only one on the market that checks all of the files right away by using a checksum - a digital identifier that is unique for every single file. When you upload content to your account, it'll be stored on several SSD drives and continually synchronized between them for redundancy. ZFS regularly examines the checksum of all files and when any file is detected as corrupted, it is replaced promptly with a good copy from some other disk. As this happens in real time, there is no risk that a bad file may remain or may be duplicated on the remaining SSDs. ZFS needs plenty of physical memory to carry out the real-time checks and the advantage of our cloud web hosting platform is that we work with multiple very powerful servers working together. In case you host your Internet sites with us, your info will be undamaged no matter what.
No Data Corruption & Data Integrity in Semi-dedicated Hosting
You won't encounter any silent data corruption issues should you acquire one of our semi-dedicated hosting
packages since the ZFS file system that we use on our cloud hosting platform uses checksums to guarantee that all the files are undamaged at all times. A checksum is a unique digital fingerprint that is allotted to each and every file saved on a server. Because we store all content on a number of drives at the same time, the same file has the same checksum on all drives and what ZFS does is that it compares the checksums between the different drives in real time. If it detects that a file is corrupted and its checksum is different from what it has to be, it replaces that file with a healthy copy without delay, avoiding any probability of the bad copy to be synchronized on the other hard disks. ZFS is the sole file system you will find that uses checksums, which makes it much more dependable than other file systems which are unable to detect silent data corruption and duplicate bad files across drives.