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System Management: Sensors and Sensor Data Records
10009109-01 ATCA-9305 User’s Manual
7-49
The IPMC implements a Device Sensor Data Record (SDR) Repository that contains SDRs for
the IPMC, the FRU device, and each sensor. A system management controller may use the
Get Device SDR command to read the repository and dynamically discover the capabilities
of the board. Refer to the IPMI specification (listed in
Tab le 1 - 2) for more information on
using Sensor Data Records and the Device SDR Repository.
Under certain circumstances, some sensors connected to the IPMC can generate Event Mes-
sages for the system management controller. To enable these messages, the system man-
agement controller must send a Set Event Receiver command to the IPMC, along with the
address of the Event Receiver.
Ta bl e 7 - 48 shows the format of an Event Message:
Table 7-48: Event Message Format
Cav1 IIC POST Processor = 07 Predictive-failure
Discrete = 04
0x03 0x60 Yes
Cav1 Boot Processor = 07 Predictive-failure
Discrete = 04
0x03 0x60 Yes
Cav2 SDRAM
POST
Memory = 0C Sensor specific
discrete = 6F
0x03 0x61 Yes
Cav2 IIC POST Processor = 07 Predictive-failure
Discrete = 04
0x03 0x61 Yes
Cav2 Boot Processor = 07 Predictive-failure
Discrete = 04
0x03 0x61 Yes
Version change Version Change Sensor specific
discrete = 6F
0xA0 0x60 Yes
Async Pld Rst Power Supply = 08 Digital Discrete
= 03
0xA0 0x60 Yes
Payload Power Power Supply = 08 Digital Discrete
= 03
0xA0 0x60 Yes
Byte:
1
Field: Description:
0 RsSA Responder’s Slave Address (Address of Event Receiver)
1 NetFn/RsLUN Net Function Code (0x04) in upper 6 bits; Responder’s LUN in lower 2
bits
2 Chk 1 Checksum #1
3 RqSA Requester’s Slave Address (Address of our board on IPMB)
4 RqSeq/RqLUN Request Sequence number in upper 6 bits; Requester’s LUN in lower 2
bits
5 Cmd Command (Always 0x02 for event message)
6 EvMRev Event Message Revision (0x04 for IPMI 1.5)
7 Sensor Type Indicates event class or type of sensor that generated the message
8 Sensor Number A unique number indicating the sensor that generated the message
Name:
Sensor
Type:
Event Reading
Type:
Enity
ID:
Entity
Instance:
Event
Gen: