It all started when some ADSM-agnostic people at Karlsruhe University organised and hosted the first three TSM Workshops.
Oxford University has organised and hosted five events called TSM Symposium, all of which have been held in St Catherine's College followed by the well received TSM Symposium 2009 at the Grandhotel Petersberg near Bonn, Germany, and the recent TSM Symposium 2011 in Dresden, Germany.
The TSM Symposia cover a wide variety of Tivoli Storage Manager (TSM) related topics and particularly thinking about Benefit from Innovation for new and changed functionality expected to come in TSM over the next couple of years.
More Information about the recent TSM symposia can be found here, and here and and here