make sure to delete any LUNs, raid groups or hot spares that could be using that shelf ...then i would pull power cables out.
Here is my question.  We have a new SATA Shelf that was just installed on our CX4-120.  Turns out that we need to return the drives that came with the shelf and upgrade them (in size).  So in the mean time I want to shut down this new shelf until we populate it with the new drives.  How do I shut down this one shelf ?
Replacing 15 drives in SATA Shelf