Dell EMC PowerVault MD3400 and MD3420 Series Storage Arrays Deployment Guide

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Cabling PowerVault MD1200 series expansion enclosures

You can expand the capacity of your PowerVault MD3400 and MD3420 storage array by adding PowerVault MD1200 series expansion enclosures. You can expand the physical disk pool to a maximum of 120 slots (or 192, if enabled using Premium Feature activation) using a maximum of seven expansion enclosures.

NOTE: To connect the MD1200 expansion enclosure to your MD Series RAID storage array, refer to the following diagrams:

Figure 1. Single expansion cabling diagram This figure shows single expansion cabling diagram.

This figure shows single expansion cabling diagram.

Figure 2. Dual expansion cabling diagram This figure shows dual expansion cabling diagram.

This figure shows dual expansion cabling diagram.

To connect an MD1200 series expansion enclosure to your MD3400 series array:

Connect the supported SAS cable (MiniSAS HD end) to the SAS OUT Port 0 on the MD3400 series storage array.
Connect the other end of the SAS cable to the IN port on one of the MD1200 series Enclosure Management Modules (EMM).
To add more MD1200 expansion enclosures, daisy chain them to the first expansion enclosure.