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b. Connect the new expansion enclosure (2): top EMM, port B to storage controller 2: port B.
Figure 75. Reconnect A-side Cables to the Storage Controllers
1. Storage system 2. Storage controller 1
3. Storage controller 2 4. Expansion enclosure 1
5. New expansion enclosure (2)
Add an Expansion Enclosure to the B-side Chain
Connect the expansion enclosure to one chain at a time to maintain drive availability.
1. Disconnect the B-side cables (shown in blue) from the storage controllers. The storage system IO
continues through the A-side cables.
• Disconnect the SAS cable from storage controller 1: port B.
• Disconnect the SAS cable from storage controller 2, port A.
Adding or Removing an Expansion Enclosure
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