Our brand new top of the line HP Z8 $9000 network renderer was dropping to it knees because of all the money they spent on it, they dropped in a cheapo 128gb SSD.
HAHA, yes... we had a similar situation... thousands of dollars in CPU and memory and cooling systems, xeon motherboard, and then 128GB HDD...wtf?
Boxx had the nerve to charge us $900 for a 1TB SSD, which failed after 7 months, and they didn't honor our warranty. Customer support stalled on emails back and forth for 3 months until a year passed, and then claimed we were outside of the warranty. We will not be using Boxx again for hardware.
Moral of the story...make sure your master has lots of SPACE! We don't use the boxx machine as a master any longer, we run our master on an older mac mini we had laying around and use 0% of its cores as slaves, but it has a massive SDD in it. Found using the master as a master only, and never slaving the cores has worked best for us.