Hello, You can add a Hard Drive Energy saving power switch - see the following link it allows for 6 separately switched Hard Discs to run independently of each other --
http://www.lian-li.com/v2/en/product/product06.php?pr_index=487&cl_index=2&sc_index=6&ss_index=125
These are readily available on ebay around the $110 mark delivered.
http://www.lian-li.com/v2/en/product/product06.php?pr_index=487&cl_index=2&sc_index=6&ss_index=125
These are readily available on ebay around the $110 mark delivered.