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IMPORTANT: DS Series and DS EXP/D3284 storage enclosures support dual-controller configuration only. If a
partner controller fails, the storage system will fail over and run on a single controller module until the redundancy
is restored. For RBODs and EBODs, an IOM must be installed in each IOM slot to ensure sufficient air flow
through the enclosure during operation.
NOTE: The enclosure core product definitions follow.
•
See
"2U enclosure core product"
•
See
"5U enclosure chassis"
•
IOMs are used in 2U and 5U chassis, and are described in
(page
29).
2U enclosure core product
The design concept is based on an enclosure subsystem together with a set of plug-in modules. A typical enclosure
system—as supplied—includes the following:
•
An enclosure chassis which includes the midplane PCB and an integral operator's (Ops) panel that is mounted
on the left ear flange at the front of the enclosure.
•
Two 580W, 100–240V AC power cooling modules. See also
•
Two IOMs: 2 x SBB-compliant interface slots.
•
Up to 24 disk drive modules. Where appropriate the disk drive carriers will include an Interposer card. See also
"Enclosure variants" (page
•
A rail kit for rack mounting.
NOTE: The module quantities quoted above are the maximum that a 2U24 enclosure can support. The following
figures show component locations relative to 2U enclosure front and rear panels.
2U enclosure front panel
Integers on disks indicate drive slot numbering sequence.
Figure 10 2U12 enclosure system – front panel components
Figure 11 2U24 enclosure system – front panel components
26
System overview
for the 2U12 and 2U24 form factor.
for the D3284 (5U84) form factor.
25). Dummy drive carriers modules must be installed in all empty drive slots.
"Controller modules"
and
Figure 33 (page
39).
"Expansion module"
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