A P P E N D I X  D

Sensor Map and Fault Isolation

This appendix defines the sensors within the CT900 chassis and, where applicable, defines what system function(s) is/are affected when a sensor is triggered.


Chassis Sensors


TABLE D-1 Sensor Map

Sensor Number

Sensor
Name

Sensor
Type

Sensor
Description

Fault Condition
(impacted function)

0

FRU 0 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for Active ShMM

 

2

FRU 1 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hotswap RTM.

N/A

3

FRU 2 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hotswap for Shelf EEPROM (redundant PROM).

 

4

FRU 8 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for SAP

 

5

FRU 3 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for Fan Tray 0

 

6

FRU 4 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for Fan Tray 1

 

7

FRU 5 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for Fan Tray 2

 

8

FRU 6 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for PEM A

 

9

FRU 7 HOT_SWAP

Discrete (0x6f), "Hot Swap" (0xf0)

Hot swap for PEM B

 

10

IPMB LINK 1

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 7 (address 41h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 7.

11

IPMB LINK 2

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 8 (address 42h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 8.

12

Fan Tray 0

Discrete (0x6f), "Entity Presence" (0x25)

Fan tray 0 present.

Lack of fan tray compromises thermal integrity. All Fan trays must be installed.

13

Fan Tray 1

Discrete (0x6f), "Entity Presence" (0x25)

Fan tray 1 present.

Lack of fan tray compromises thermal integrity. All Fan trays must be installed.

14

Fan Tray 2

Discrete (0x6f), "Entity Presence" (0x25)

Fan tray 2 present.

Lack of fan tray compromises thermal integrity. All Fan trays must be installed.

15

IPMB LINK 3

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 6 (address 43h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 6.

16

IPMB LINK 4

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 9 (address 44h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 9.

17

IPMB LINK 5

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 5 (address 45h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 5.

18

IPMB LINK 6

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 10 (address 46h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 10.

19

IPMB LINK 7

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 4 (address 47h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 4.

20

IPMB LINK 8

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 11 (address 48h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 11.

21

IPMB LINK 9

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 3 (address 49h). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 3.

22

IPMB LINK 10

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 12 (address 4Ah). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 12.

23

IPMB LINK 11

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 2 (address 4Bh). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 2.

24

IPMB LINK 12

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 13 (address 4Ch). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 13.

25

IPMB LINK 13

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 1 (address 4Dh). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 1.

26

IPMB LINK 14

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI bus to slot 14 (address 4Eh). Redundant pair (IPMB_A and IPMB_B)

If both the IPMB-A and IPMB links are disabled the shelf manager will not communicate with the blade in slot 14.

27

IPMB LINK 15

Discrete (0x6f), "IPMB Link" (0xf1)

IPMI Backplane

 

120

Center Exhaust

Threshold (0x01), "Temperature" (0x01)

Exhaust air temperature, Center

If the exhaust air temperature goes above the UNR threshold the blades may overheat.

121

Left Exhaust

Threshold (0x01), "Temperature" (0x01)

Exhaust air temperature, Left

If the exhaust air temperature goes above the UNR threshold the blades may overheat.

122

Right Exhaust

Threshold (0x01), "Temperature" (0x01)

Exhaust air temperature, Right

If the exhaust air temperature goes above the UNR threshold the blades may overheat.

123

SAP Temp

Threshold (0x01), "Temperature" (0x01)

Temperature sensor on SAP board

If the SAP air temperature goes above the UNR threshold the blades may overheat.

124

Temp_In Left

Threshold (0x01), "Temperature" (0x01)

Temperature of inlet air Left, Located in fan tray

If the intake air temperature goes above the UNR threshold the computer room airconditioning has failed.

125

Temp_In Center

Threshold (0x01), "Temperature" (0x01)

Temperature of inlet air Center, Located in fan tray

If the intake air temperature goes above the UNR threshold the computer room airconditioning has failed.

126

Temp_In Right

Threshold (0x01), "Temperature" (0x01)

Temperature of inlet air Right, Located in fan tray

If the intake air temperature goes above the UNR threshold the computer room airconditioning has failed.

131

TELCO Alarms

Discrete (0x6f), "OEM reserved" (0xdf)

Telco event occurred.

 

132

BMC Watchdog

Discrete (0x6f), "Watchdog 2" (0x23)

ATCA IPMI watchdog.

 

133

SYSTEM EVENT

Discrete (0x6f), "System Event" (0x12)

System reconfiguration event.

 

135

FT Oper. Status

Management

Subsystem

Health (28h)

Current cooling state of the shelf:

  • 00h = Full Redundancy = all fan trays defined in the Address Table are operational
  • 01h = Redundancy Lost = some of the fan trays defined in the Address Table are missing or nonoperational.

With the HPDL default cooling management strategy, this causes the fan level for all remaining fan trays to be set to their maximum.

 

136

Cooling State

Management

Subsystem

Health (28h)

00h = transition to OK. The cooling state is Normal

  • 01h transition to Non-Critical from OK. The cooling state is now Minor Alert, the previous cooling state was Normal.
  • 02h transition to Critical from less severe. The cooling state is now Major Alert, the previous cooling state was either Normal or Minor Alert.
  • 04h transition to Non-Critical from more severe. The cooling state is now Minor Alert, the previous cooling state was either Major or Critical Alert.
  • 05h transition to Critical from Non-recoverable. The current cooling state is Major Alert, the previous cooling state was Critical Alert.
  • 06h transition to Nonrecoverable. The current cooling state is now Critical Alert.

 

137

Fans State

Management

Subsystem

Health (28h)

  • 00h = transition to OK. The fans state is Normal (no thresholds are crossed on fan tachometer sensors).
  • 01h = transition to Non-Critical from OK. The fans state is now Minor Alert (non-critical thresholds are crossed for some tachometer.

 

150

Air Filter

Discrete (0x6f), "Entity Presence" (0x25)

Air filter presence sensor.

If the air filter is not present the blades will get dirty and may overheat.

152

SAP

Discrete (0x6f), "Entity Presence" (0x25)

SAP presence.

With no SAP, there will be no Telco alarms. SAP temperature and exhaust temperatures not available with SAP missing.

162

PEM A In 2

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 2, before fuse.

If failed, FRUs powered by input 2 will not have power redundancy.

163

PEM A In 2 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 2, after fuse.

Sensor #162 and 163 can be used to determine if fuse is failed or if input is not connected. See Table 2.

164

PEM A In 1

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 1, before fuse.

If failed, FRUs powered by input 1 will not have power redundancy.

165

PEM A In 1 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 1, after fuse.

Sensor #164 and 165 can be used to determine if fuse is failed or if input is not connected. See Table 2.

166

PEM A In 4

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 4, before fuse.

If failed, FRUs powered by input 4 will not have power redundancy.

167

PEM A In 4 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 4, after fuse.

Sensor #166 and 167 can be used to determine if fuse is failed or if input is not connected. See Table 2.

168

PEM A In 3

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 3, before fuse.

If failed, FRUs powered by input 3 will not have power redundancy.

169

PEM A In 3 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM A input 3, after fuse.

Sensor #168 and 169 can be used to determine if fuse is failed or if input is not connected. See Table 2.

174

PEM B In 2

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 2, before fuse.

If failed, FRUs powered by input 2 will not have power redundancy.

175

PEM B In 2 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 2, after fuse.

Sensor #174 and 175 can be used to determine if fuse is failed or if input is not connected. See Table 2.

176

PEM B In 1

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 1, before fuse.

If failed, FRUs powered by input 1 will not have power redundancy.

177

PEM B In 1 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 1, after fuse.

Sensor #176 and 177 can be used to determine if fuse is failed or if input is not connected. See Table 2.

178

PEM B In 4

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 4, before fuse.

If failed, FRUs powered by input 4 will not have power redundancy.

179

PEM B In 4 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 4, after fuse.

Sensor #178 and 179 can be used to determine if fuse is failed or if input is not connected. See Table 2.

180

PEM B In 3

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 3, before fuse.

If failed, FRUs powered by input 3 will not have power redundancy.

181

PEM B In 3 Fused

Discrete (0x6f), "Entity Presence" (0x25)

PEM B input 3, after fuse.

Sensor #180 and 181 can be used to determine if fuse is failed or if input is not connected. See Table 2.

192

PEM A

Discrete (0x6f), "Entity Presence" (0x25)

PEM A present.

If no PEM A, then PEM B will power up system.

193

PEM B

Discrete (0x6f), "Entity Presence" (0x25)

PEM B present.

If no PEM B, then PEM A will power up system.

194

Shelf EEPROM 1

Discrete (0x6f), "Entity Presence" (0x25)

 

 

195

Shelf EEPROM 2

Discrete (0x6f), "Entity Presence" (0x25)

 

 

200

PEM A Temp

Threshold (0x01), "Temperature" (0x01)

Temperature in PEM A

If the PEM temperature goes above the UNR threshold there is a cooling problem.

201

PEM B Temp

Threshold (0x01), "Temperature" (0x01)

Temperature in PEM B

If the PEM temperature goes above the UNR threshold there is a cooling problem.

208

24V FT 0

Discrete (0x6f), "Entity Presence" (0x25)

Output of 24V DC-DC converter OK

If the 24V DC-DC fails, fans in FT0 will fail

209

-48A bus FT 0

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 A input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

210

-48A FT 0

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 A input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

211

-48B bus FT 0

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 B input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

212

-48B FT 0

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 B input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

213

-48A FT 0 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 A input fuse

Sensor #209 and 210 are used to determine if fuse has failed or if input is not present.

214

-48B FT 0 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 0 B input fuse

Sensor #211 and 212 are used to determine if fuse has failed or if input is not present.

215

24V FT 1

Discrete (0x6f), "Entity Presence" (0x25)

Output of 24V DC-DC converter OK

If the 24V DC-DC fails, fans in FT1 will fail

216

-48A bus FT 1

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 A input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

217

-48A FT 1

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 A input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

218

-48B bus FT 1

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 B input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

219

-48B FT 1

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 B input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

220

-48A FT 1 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 A input fuse

Sensor #209 and 210 are used to determine if fuse has failed or if input is not present.

221

-48B FT 1 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 1 B input fuse

Sensor #211 and 212 are used to determine if fuse has failed or if input is not present.

222

24V FT 2

Discrete (0x6f), "Entity Presence" (0x25)

Output of 24V DC-DC converter OK

If the 24V DC-DC fails, fans in FT2 will fail

223

-48A bus FT 2

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 A input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

224

-48A FT 2

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 A input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

225

-48B bus FT 2

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 B input, before fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

226

-48B FT 2

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 B input, after fuse

If both A and B feeds are missing then the 24V DC-DC converter will not operate.

227

-48A FT 2 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 A input fuse

Sensor #209 and 210 are used to determine if fuse has failed or if input is not present.

228

-48B FT 2 Fuse

Discrete (0x6f), "Entity Presence" (0x25)

FT 2 B input fuse

Sensor #211 and 212 are used to determine if fuse has failed or if input is not present.

244

3V3_RAD

Discrete (0x6f), "Entity Presence" (0x25)

Power to the Radial IPMB circuitry.

Indicates a failure of both I2C-A and I2C-B power supplies. The Radial IPMB circuitry on the shelf manager carrier board will not work.


FIGURE D-1 Chassis Level Sensor Locations - Front


Figure showing chassis-level sensor locations on the front of the chassis.

FIGURE D-2 Chassis Level Sensor Locations - Rear


Figure showing chassis-level sensor locations on the rear of the chassis.


PEM Sensors

FIGURE D-3 PEM Sensors


Figure showing the PEM sensor locations.

PEM Sensor Fault Interpretation


TABLE D-2 PEM Sensor Fault Interpretation

-48V INPUT

-48V Fuse

-48V RTN Fuse

-48V RTN

Input 1

Input 1 Fused

Present

OK

OK

Present

1

1

Present

OK

OK

Missing

0

0

Present

OK

Blown

Present

1

0

Present

OK

Blown

Missing

0

0

Present

Blown

OK

Present

1

0

Present

Blown

OK

Missing

0

0

Present

Blown

Blown

Present

1

0

Present

Blown

Blown

Missing

0

0

Missing

Don’t Care

Don’t Care

Don’t Care

0

0


 


TABLE D-3 Fault Condition Interpretation for Input 1

In 1

In 1 Fused

Fault conditions

0

0

One or more of the following faults: -48V RTN missing;-48V RTN Fuse blown;48V Fuse blown; -48V INPUT missing

0

1

Not valid

1

0

One or more of the following faults: -48V RTN Fuse blown; -48V Fuse blown

1

1

No fault




Note - If the same input on both PEMs fails, then selected slots, fan trays, and/or the Shelf Manager will be affected. Refer to the CT900 Hardware System Specification for definitions of which input feed supplies power to system components. This failure will only occur upon a double fault.



Fan Tray Sensors

FIGURE D-4 Fan Tray Sensors


Figure showing locations of the fan tray sensors.


SAP Sensors

FIGURE D-5 SAP Sensors


Figure showing locations of the SAP sensors.