Silicon Graphics InfiniteStorage 6120, User Manual

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The InfiniteStorage 6120 System Hardware
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1.2.6 LED Indicators
The InfiniteStorage 6120 has both FRU and status LEDs to indicate the state of various components
within the enclosure. Each FRU has a visible blue identity LED. Each FRU, except the drive module,
has a visible amber LED which indicates a fault.
1.2.6.1 Front Panel Indicators
The front panel indicators show the aggregated status of all the modules
(Figure 11)
. The LEDs are
defined in Figure 12 . The Drive Activity LEDs indicate drive presence and flash during data I/O.
Figure 12. Front Panel LED Description
LED Definition Color Status
Shelf Identify Blue
ON - SES is sending an identify command
OFF - SES is NOT sending an identify command
System Fault Amber
ON - one or more components within enclosure have failed. A
service action is required. Exact failed component has its own
amber fault LED lit.
OFF - no detectable faults
System Power Green
ON - DC power is present
OFF - DC power is not present
LED does NOT flash under normal operating conditions
Cover Open Amber
OFF - both cover pieces securely closed and latched in place
ON - either of the cover pieces is NOT securely closed and latched
in place
DEM Fault Amber
OFF - all DEMs operating correctly
ON - at least one DEM has failed; service action required
Drive Fault Amber
ON - one or more HDDs are failed; SES must determine exact
HDD
OFF - no detectable drive faults
Individually
numbered
HDDs Green
ON - when SAS HDD is present
Blinks - indicates HDD activity
OFF - no HDD activity
Figure 11. Front Panel LED Indicators
Shelf Identify
System Power
System Fault
Drive Fault
DEM Fault
Cover Open
Drive Activity LEDs