What is the best system for NAS to choose?

Question

Computer networks

Good day to all!
There was a need for file storage, now I'm choosing a system for it
Storage requirements
2 groups of computers (Windows systems) will be connected to the storage. Each will use its home directory as a network folder (or network drive) on the local network, and connect to it via ftp from the Internet.
More than 100 computers
In addition, you need to be able to do ssd caching (as in ZFS - L2ARC)
Advise which system is better to take for these purposes? Tried FreeNAS 9.2, broke off. Unable to share the home folder with full rights and connect to it via FTP

Answer 1

If you have enough knowledge, then this configuration is easy to set up by hand on any stable Linux distribution (Debian, CentOS, SUSE, Ubuntu LTS).
You put samba for network folders and vsftpd for ftp.
On Linux, there are several technologies for caching data on SSD - bcache, EnhanceIO, dm-cache, etc. But you need a fresher core ...