Environmental Status Modules (Esms); Figure 2-5 Environmental Status Modules - Silicon Graphics InfiniteStorage S330 RAID User Manual

Environmental Status Modules (ESMs)

007-4798-001
The expansion enclosures contain environmental status modules instead of RAID controllers (see
Figure 2-5). Each environmental status module contains an environmental services monitor board
and two slots for SFPs (small form-factor pluggables). The environmental services monitor board
is the interface between the controller enclosure and the expansion enclosure, and it monitors
expansion enclosure status. If there are internal problems in the expansion enclosure, the
environmental services monitor board lights the appropriate fault LED. For more information
about this LED, see "Checking the Indicator Lights" on page 36.
ESM
Figure 2-5
Environmental Status Modules
Environmental Status Modules (ESMs)
ESM
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