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Dell Storage Center SCv2000 and SCv2020 Storage System Deployment Guide

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Add the SC100/SC120 Expansion Enclosures to the B-Side of the Chain

Connect the expansion enclosures to one side of the chain at a time to maintain drive availability.

  1. Remove the B-side cable (shown in blue) that connects storage controller 1: port B to storage controller 2: port A. The A-side cables continue to carry I/O while the B-side is disconnected.
    Figure 1. Remove the B-Side Cable from the Storage ControllersDisconnect the B-side cable that interconnects the storage controllers.
    1. Storage system
    2. Storage controller 1

    3. Storage controller 2

    4. Expansion enclosure 1

    5. Expansion enclosure 2

  2. Cable the expansion enclosures to the B-side of the chain.
    1. Connect a SAS cable from storage controller 1: port B to expansion enclosure 2: bottom EMM, port B.
    2. Connect a SAS cable from storage controller 2: port A to expansion enclosure 1: bottom EMM, port A.
    Figure 2. Connect the B-Side Cables to the Expansion EnclosuresCable the SC100/SC120 expansion enclosures to the B-side of the chain.
    1. Storage system
    2. Storage controller 1

    3. Storage controller 2

    4. Expansion enclosure 1

    5. Expansion enclosure 2


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