Hey both,
I finally remembered that the exact same thing happened when I installed Opencast 8 from scratch, basically on our system (which does not make this right) we originally had the unchanged line in custom.properties
org.opencastproject.workspace.rootdir=/var/lib/opencast/workspace - Trouble is media analysis created the resources on each machine so each node potentially had a folder with resources in for the media, 64 events later and everything was failing due to lack of space or the inability to find a resource and it's only the 1st day
So we changed the line to
org.opencastproject.workspace.rootdir=${org.opencastproject.storage.dir}/workspace - not sure if this is the best way to do this but it works and I'm past caring.
after cleansing the systems, we started the import of the media from the Extrons
Again, thanks for the ideas
Regards
Steve