Dell Storage Center SCv2000 and SCv2020 Storage System Deployment Guide

Disconnect the B-side cables from the expansion enclosure that you want to remove.

1. Disconnect the B-side cable (shown in blue) from expansion enclosure 1: bottom EMM, port A. The A-side cables continue to carry I/O while the B-side is disconnected.
2. Remove the B-side cable between expansion enclosure 1: bottom EMM, port B and expansion enclosure 2: bottom EMM, port A.
   Figure 1. Disconnecting the B-Side Cables from the Expansion Enclosure

   1. Storage system

   2. Storage controller 1

   3. Storage controller 2

   4. Expansion enclosure 1

   5. Expansion enclosure 2

3. Connect the B-side cable to expansion enclosure 2: bottom EMM, port A. The expansion enclosure is now disconnected and can be removed.
   Figure 2. Reconnecting the B-Side Cable to the Remaining SC100/SC120 Expansion Enclosure

   1. Storage system

   2. Storage controller 1

   3. Storage controller 2

   4. Disconnected expansion enclosure

   5. Expansion enclosure 1