[Gluster-devel] (late) report from SDC 2015

[Michael Adam]

September 19 through September 25, several developers from Red Hat
Storage were in Santa Clara, CA, attending and presenting at
SNIA's Storage Developer Conference (SDC), and also participating in
the colocated SMB plugfest. For the Samba community, this is one of
the two major events of the year (the other being sambaXP - the annual
Samba developer and user conference held in spring - www.sambaxp.org).

http://www.snia.org/events/storage-developer

This is my report -- better late than never. :-)

We had a very good presence from Red Hat Storage.
Here are the presentations listed in chronological order:

- Poornima Gurusiddaiah and Soumya Koduri gave a great
  presentation about consistent client caching in Gluster.
  This includes the leases which are an important part
  of the SMB and NFS teams' combined effort to implement
  multi-protocol access. They form the foundation inside
  Gluster for implementing SMB leases and NFS delegations in
  the protocol on top in such a way that they can be used
  concurrently.

- Ira Cooper gave a really nice comprehensive overview talk
  about the status of the implementation of SMB3 in Samba.
  Ira's talk also served as an 'appetizer' for the more
  specific Samba talks that followed.

- I gave a presentation about the implementation of
  SMB3-Multi-Channel (my current project) which is some
  kind of SMB-client side channel bonding. It included a
  live demo that ran code I finished hacking the night
  before the talk. :-)

- Günther Deschner and José Rivera gave a great talk
  about the implementation of the SMB3 witness service.
  This is at the heart of the SMB3 clustering features and
  serves for faster client failovers. The talk also included
  a tremendous live demo of some "hot" code.

- Finally, Soumya Koduri gave an awesome talk about
  NFS Ganesha on Gluster. She explained the basics of
  Ganesha and how it works specifically on top of Gluster.

There was also an interesting talk about GlusterFS in Manila
by Veda Shankar from RH together with Ramnath Sai Sagar
from Mellanox.

The conference over all was pretty good this year. The usual
SMB protocol updates from Microsoft. A couple of good
Samba and linux-cifs related talks by Volker Lendecke,
Jeremy Allison and Steve French. Non volatile memory and
shingled disks were big topics this year, as well as
generally software defined storage and all things where
storage meets cloud. An interesting keynote was the
introduction of the concept of Ethernet connected JBOD,
called EBOD, by Jim Pinkerton of Microsoft. It basically
provides a new proposal where to draw the line between
storage and compute.

The second aspect of the event was the SMB plugfest, which
is an NDA area where engineers of several companies and projects
that implement SMB servers and/or clients (Microsoft, NetApp,
EMC, Apple, LoadDynamix, ... to name just a few) meet to test
their implementations against one another, to discuss the protocol
protocol, and hack.

Like in past years, this has been a very good and energizing
event, for me mostly discussing, hacking, and fixing bugs together
with other Samba people. I spent the week essentially jumping
back and forth between selected conference sessions and the
plugfest.

Cheers - Michael

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