Hello - I am running monetdb with the July2015 service pack on MAC OSX. I have no problem running and connecting to a dbfarm that lives on my MAC. But I want to test a very large data set so have created a dbfarm on a Samsung T1 SSD external drive that is USB connected to my MAC. I have successfully started monetdbd server and have attached to my dbfarm. I created/released a new database. Yet when I attempt to run mClient it fails. Here is the "get all" command: rs-btlcj34lt:testMapiSock lcj34$ monetdbd get all /Volumes/Samsung_T1/alt-dbfarm property value hostname rs-btlcj34lt.maize.cornell.edu dbfarm /Volumes/Samsung_T1/alt-dbfarm status monetdbd[740] 1.7 (Jul2015-SP1) is serving this dbfarm mserver /Users/lcj34/development/usr/local/monetdb/bin/mserver5 logfile /Volumes/Samsung_T1/alt-dbfarm/merovingian.log pidfile /Volumes/Samsung_T1/alt-dbfarm/merovingian.pid sockdir /tmp port 50000 exittimeout 60 forward proxy discovery true discoveryttl 600 control no passphrase <unknown> mapisock /tmp/.s.monetdb.50000 controlsock /tmp/.s.merovingian.50000 rs-btlcj34lt:testMapiSock lcj34$ Here is the command line error: rs-btlcj34lt:alt-dbfarm lcj34$ mclient -u monetdb -d maizeFullGenomeDB password: monetdbd: internal error while starting mserver, please refer to the logs And here is the error from the log file. 2016-01-14 10:33:26 MSG maizeFullGenomeDB[749]: # Visit http://www.monetdb.org/ for further information 2016-01-14 10:33:26 MSG maizeFullGenomeDB[749]: !IOException:mal_mapi.listen:operation failed: binding to UNIX socket file /Volumes/Samsung_T1/alt-dbfarm/maizeFullGenomeDB/.mapi.sock failed: No such file or directory If I switch back to a dbfarm local to the MAC, it works fine. Any ideas why I can't connect to a dbfarm on the external drive? Is there something else that needs to be setup for the socket creation to work? Thanks - Lynn