Data corruption is the damage of information because of various hardware or software failures. The moment a file gets corrupted, it will no longer function accurately, so an application 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 administrator, that makes it a serious problem for website hosting servers as failures are more likely to happen on larger hard disk drives where substantial volumes of information are kept. In case a drive is part of a RAID and the information on it is copied on other drives for redundancy, it's likely that the damaged file will be treated as a good one and it'll be duplicated on all drives, making the damage permanent. A lot of the file systems which operate on web servers these days often are unable to discover corrupted files right away or they need time-consuming system checks through which the server isn't operational.
No Data Corruption & Data Integrity in Website Hosting
We've resolved the issue of silent data corruption on all our website hosting servers by using the cutting-edge Z file system, or ZFS. The latter is better than other file systems as it is the only one out there that checks all files in real time by employing a checksum - a digital identifier that is unique for each file. When you upload content to your account, it will be stored on several SSD drives and constantly synchronized between them for redundancy. ZFS regularly examines the checksum of all files and if any file is detected as damaged, it's replaced quickly with a good copy from another disk. As this happens in real time, there's 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 carry out the real-time checks and the benefit of our cloud hosting platform is that we employ multiple 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 Servers
Your semi-dedicated server account will be shielded from silent data corruption as all our storage servers make use of the innovative ZFS file system. What makes the latter unique is that it employs checksums, or digital identifiers, so as to guarantee the integrity of each file. When you upload content to your account, it'll be stored on a couple of redundant drives operating in a RAID i.e. the files shall be the same on all disk drives. All copies of a specific file will have the same checksum on all hard disks and ZFS will compare the checksums of the copies in real time, and if it discovers a mismatch, which will indicate that one of the copies is corrupted, it will substitute that file with a good copy from one of the other drives. Even if there is an unforeseen blackout, the data on the servers will not become corrupted and there will not be any need for a time-consuming system check that other file systems perform after some breakdown, prolonging the time needed for the server to return online. ZFS is the only file system that can truly protect your content from silent data corruption.