ZFS is one of the most sophisticated file systems these days and it outperforms any other file system when it comes to speed, functionality and stability. The speed at which info is processed on a web server using ZFS is much higher, so not only shall any sites hosted on the machine be read and executed way quicker, but also backups can be generated more quickly and with greater frequency without affecting the overall performance. In addition, ZFS uses checksums - digital algorithms which are used to recognize corrupted files. Each time the file system detects that there is a problem with a certain file, it fixes it using a good copy from another hard drive in the RAID. Both the checks and the repairs are executed in real time, so the data saved on ZFS-based servers shall be safe at all times as it practically can't get corrupted. Another advantage of ZFS over other file systems is that there's no limit for the total amount of files that may be stored in a single account or on the web server as a whole.
