My name is Marcelo Leal, and I did study  at   Universidade do Vale do Rio dos Sinos (Unisinos) - RS, where I undertook a bachelors degree in Computing Science.

I do  work  with  IT for more than 20 years (Operating System, Storage and Networking), and more than 10 years with administration and support in Unix,  GNU/Linux,  and BSD environments.  Currently  I  do work with Cloud Services Architecture (Global and Distributed, Highly Available Solutions).

I did write the books:  ZFS  Para  usuários OpenSolaris, Windows,  Mac  e  Linux  -  Brasport/2010   (Brazilian Portuguese), and Implementing Samba 4 - Packt/2014 (English).

I was one of the founders of the Porto Alegre OpenSolaris  User Group (PoaOSUG). In the OpenSolaris Community, I was   a   contributor   for  the  Open High Availability Cluster/OHAC Project, and in 2007/2008  I  did  receive  three  winning prizes on the OpenSolaris Innovation Awards  Program.

In 2009 I did a presentation  about Storage HA  at  the first OHAC Summit in San Francisco/California - USA, and in 2013 about Storage Performance at the SNIA SpeedConf Storage Plumbing and Data Engineering Conference in Santa Clara/California - USA.