Chapter 4 Installation of 2U enclosures
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To populate the 2U enclosure:
1. Examine drive carriers for damage. If you installed a new drive in the carrier, verify drive connector pins are
not bent.
2. Orient a drive in its carrier (DDIC) so the release latch is to the left for the 2U12 or to the top for the 2U24.
3. Insert it into the first available left-hand slot and press inward until fully seated against the midplane and the
latch locks.
4. For the 2U12 storage enclosure, take the following actions until all slots hold either a DDIC or an optional
blank carrier.
a. Insert the next DDIC and move across the row to the next slot in the sequence, repeating until the top
row is full.
b. Repeat until the middle row is full.
c. Repeat until the bottom row is full.
5. For the 2U24 storage enclosure, insert the next DDIC and move across the row to the next slot in the
sequence, repeating until all slots hold either a DDIC or an optional blank carrier.
CAUTION If you partially populate the storage enclosure with drives in their carriers (DDICs), you must
install a minimum of one DDIC. For proper air flow, all drive slots must hold either a DDIC or an optional blank
carrier. You may not leave any empty slots.
Test enclosure electrical earth connection
After completion of all installation procedures, the storage enclosure is ready for connection to power. You can
only connect the storage enclosure to a power source that has a safety electrical earth connection. Have a
qualified electrical engineer confirm the earth connection meets the product specifications.
CAUTION If you install multiple storage enclosures in a rack cabinet, the importance of the earth
connection increases, since each enclosure increases earth leakage current.
IMPORTANT Only a qualified electrical engineer who meets local and national standards should perform
the inspection.
Route 2U enclosure data cables and power cords
Host and data cable provide an efficient highway for data exchanges to and from the storage enclosure. Cable
connections and routing vary, depending on intended use and installation. This section only covers the most
common methods.
When properly connected to autonomous power distribution units (PDUs), power cords provide uninterrupted
power to the storage enclosure.
You must properly route both cables and power cords while adhering to all grounding requirements and
electrical safety precautions.
