Dem (Drive Expander Module) - Silicon Graphics InfiniteStorage 6120 User Manual

4.1.5

DEM (Drive Expander Module)

Figure 90
• Under normal conditions, the LEDs should be illuminated constant green.
• If a problem is detected, the color of the relevant LED will change to amber.
Figure 90. DEM LED Indicators
Identifier
Enclosure fault Front enclosure
DEM fault
DEM fault
DC OK
Expander MIPS
DEM identify
0 0 7 - 5 5 3 3 - 0 0 1
describes the DEM LED status.
Location
Front enclosure
Internal (DEM)
enclosure
Internal (DEM)
enclosure
Internal (DEM)
ready enclosure
Internal (DEM)
enclosure
Color
Amber ON - DEM fault detected
Amber ON - DEM fault detected
Amber ON - DEM fault detected
ON - DC voltage regulation is within limits.
Green
OFF - DC output failure
ON - Expander internal processor is booted and
operating correctly.
Green
OFF - Expander internal processor is NOT booted or
ready.
ON- This DEM is being sent an identify command,
Blue
the SEP.
Status LED Indicators
Status
64