Dell SC4020 - Add an SC200;SC220 Expansion Enclosure to the B-Side of the Chain

4. Connect the A-side cable that was disconnected in step 2 to the new expansion enclosure (2): top
EMM, port B.
Figure 134. Connect A-Side Cables to the New Expansion Enclosure
1. Storage system 2. Storage controller 1
3. Storage controller 2 4. Expansion enclosure 1
5. New expansion enclosure (2)
Add an SC200/SC220 Expansion Enclosure to the B-Side of the Chain
Connect the expansion enclosure to one side of the chain at a time to maintain drive availability.
1. Disconnect the B-side cable (shown in blue) from the expansion enclosure: bottom EMM, port B. The
A-side cables continue to carry I/O while the B-side is disconnected.
Adding or Removing an Expansion Enclosure
151