Nmi (Diagnostic Interrupt) Sensor; Lan Leash Event Monitoring; Add-In Module Presence Sensor - Penguin Computing Relion 1900e Technical Manual

Component Owner
Fan Fault LED BMC
DIMM Fault LED BMC
HSBP
PSoC*
HDD Fault LED
CPU Fault LEDs BMC
Fan fault LEDs – A fan fault LED is associated with each fan. The BMC lights a fan fault LED if the
•
associated fan-tach sensor has a lower critical threshold event status asserted. Fan-tach sensors
are manual re-arm sensors. Once the lower critical threshold is crossed, the LED remains lit until
the sensor is rearmed. These sensors are rearmed at system DC power-on and system reset.
DIMM fault LEDs – The BMC owns the hardware control for these LEDs. The LEDs reflect the state
•
of BIOS-owned event-only sensors. When the BIOS detects a DIMM fault condition, it sends an
IPMI OEM command (Set Fault Indication) to the BMC to instruct the BMC to turn on the
associated DIMM Fault LED. These LEDs are only active when the system is in the 'on' state. The
BMC will not activate or change the state of the LEDs unless instructed by the BIOS.
Hard Disk Drive Status LEDs – The HSBP PSoC* owns the HW control for these LEDs and
•
detection of the fault/status conditions that the LEDs reflect.
• CPU Fault LEDs. The BMC owns control for these LEDs. An LED is lit if there is an MSID mismatch
(that is, CPU power rating is incompatible with the board)
7.3.18

NMI (Diagnostic Interrupt) Sensor

The BMC supports an NMI sensor for logging an event when a diagnostic interrupt is generated for the
following cases:
• The front panel NMI (diagnostic interrupt) button is pressed
The BMC receives an IPMI command Chassis Control command that requests this action
•
Note that the BMC may also generate this interrupt due to an IPMI Watchdog Timer pre-timeout interrupt;
however an event for this occurrence is already logged against the Watchdog Timer sensor so it will not log
an NMI sensor event.
7.3.19

LAN Leash Event Monitoring

The Physical Security sensor is used to monitor the LAN link and chassis intrusion status. This is
implemented as a LAN Leash offset in this discrete sensor. This sensor monitors the link state of the two
BMC embedded LAN channels. It does not monitor the state of any optional NICs.
The LAN Leash Lost offset asserts when one of the two BMC LAN channels loses a previously established
link. It de-asserts when at least one LAN channel has a new link established after the previous assertion. No
action is taken if a link has never been established.
LAN Leash events do not affect the front panel system status LED.
7.3.20

Add-in Module Presence Sensor

Some server boards provide dedicated slots for add-in modules/boards (for example, SAS, IO, PCIe*-riser).
For these boards the BMC provides an individual presence sensor to indicate if the module/board is
installed.
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Relion 1900e/2900e Manual
Color State
Amber Solid On
Amber Off
Amber Solid On
Amber Off
Amber On
Amber Blink
Amber Off
Amber off
Amber on
Description
Fan failed
Fan working correctly
Memory failure – detected by BIOS
DIMM working correctly
HDD Fault
Predictive failure, rebuild, identify
Ok (no errors)
Ok (no errors)
MSID mismatch.
Revision 1.3