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The 2U enclosures use a redundant PCM that integrates a power supply and cooling fan within the same CRU
module, as shown in
supply and cooling/circulation, respectively.
Figure 28
shows the power supply module, which provides the enclosure with power connection and a power
switch.
Figure 29 (page 35)
PCM, and five of them are used within the 5U84 to provide sufficient airflow throughout the enclosure.
Fan cooling module
Figure 29
shows the fan cooling module (FCM) used in optional 5U expansion enclosures.
Figure 29 Fan cooling module (FCM) detail
5U enclosure chassis
The 5U chassis consists of a sheet metal enclosure with an integrated midplane PCB, module runner system, and
two drawers for drive modules.
NOTE: Supported 5U chassis form factors used for configuring EBODs:
•
5U84 chassis configured with up to 84 LFF disks in DDICs: see
•
5U84 chassis configured with SFF disks in SFF disks in 2.5" to 3.5" hybrid driver carrier adapter.
•
5U84 empty chassis with midplane, module runner system and drawers.
•
The chassis has a 19-inch rack mounting that enables it be installed onto standard 19-inch racks, and uses five
EIA units of rack space (8.75") for a 5U enclosure.
•
At the front of the enclosure two drawers can be opened and closed. Each drawer provides access to 42 slots for
Disk Drive in Carrier (DDIC) modules. DDICs are top mounted into the drawers as shown in the drawer
diagram on
LEDs.
•
At the rear of the enclosure, access is provided to rear panel CRUs: two SBB-compliant IOMs; two PSUs; and
five fan cooling modules.
5U enclosure drawers
Each enclosure drawer contains 42 slots, each of which can accept a single DDIC containing a 3.5" LFF disk drive
or a 2.5" SFF disk drive with an adapter. See
Figure 22 (page
30). Conversely, the 5U enclosures use separate CRU modules for power
shows the fan cooling module used in 5U enclosures. The FCM is smaller than the
page
33. The front of the enclosure also provides enclosure status LEDs and drawer status/activity
Figure 26 (page
Figure 25
and
Figure 26 (page
33).
33).
5U enclosure chassis
35
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Troubleshooting
