Introduction to FreeBSD and ZFS

This was a 25 minutes talk at the Ruby User Group Berlin (RUG-B)

Transcript

1. Intentionally Left Blank
2. Who is this guy? • John / hukl • twitter.com/hukl • github.com/hukl • smyck.net (blog)
3. What is FreeBSD & ZFS?
4. History of (Free) BSD • BSD initially shared the codebase with AT&T Unix • Its a branch of Unix from the University of Berkeley 1977 to 1995 • Large parts of AT&T code had to be replaced to make it open source • FreeBSD development began in 1993
5. Who the hell uses FreeBSD? • Network Equipment Vendors like Juniper • Playstation 3 and 4 • Netflix, yahoo, • MacOS X, FreeNAS, pfSense • Wooga ;) • WhatsApp!!! (550 Servers running FreeBSD 9.2) http://is.gd/V87RYw
7. Differences to Linux • Focus: Stability, Performance, Security for Server applications • Kernel and Userland developed together in the same source tree • There is actually a Handbook! • Very stable userland API • In most of the cases its simpler
8. Features • Jails - chroot environment ++ / sandbox / virtualization without penalty • ZFS - the best Filesystem you can use today
9. ZFS • ZFS is like using tmux compared to screen • ZFS is like using git compared to cvs • ZFS is like having an ssd when everybody else still has an hdd
10. Fact Sheet • 128 Bit Filesystem and Logical Volume Manager • Strong Protection against Data Corruption • Efficient Compression / Deduplication • Read and Write Caching • Snapshots
11. Copy on Write
12. Copy on Write
13. Copy on Write
14. Copy on Write
15. Getting Started • https://vimeo.com/channels/freebsdguides • https://github.com/hukl/freebsd-toolbox • https://www.freebsd.org/doc/handbook/