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Emerson AXP1406, AXP1600 A.4 Adaptive Adjustment of the Minimum Fan Level

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AXP1406/AXP1600 Subsystem IPMI Programmer’s Reference (6806800B66C)

System Behavior in Response to Sensor Events Adaptive Adjustment of the Minimum Fan Level

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When at least one nonrecoverable temperature threshold has been exceeded on a FRU, the

Shelf Manager powers down the FRU (sending them the SetPowerLevel(0) command) and

refuses to power the FRU back up for COOLING_POLL_TIMEOUT* seconds. In that state, the

Shelf Manager also immediately raises the level of all fans to the maximum level and keeps it

at maximum.

A.4 Adaptive Adjustment of the Minimum Fan Level

The Shelf Manager changes the minimum fan level over time to prevent oscillations of the shelf

between normal and abnormal cooling mode. When the shelf transitions from normal to

abnormal cooling mode, this means that the current fan level is insufficient for effective cooling

of the shelf. In that case, the Shelf Manager dynamically changes the minimum fan level to the

current level + 1, so that next time in normal mode the Shelf Manager will not try to decrease

the fan level so low. (In the case of multiple fans and different fan levels, the Shelf Manager

chooses the maximum current fan level.) This makes the algorithm to converge to a certain fan

level after several oscillations; at that level, the shelf operates in normal cooling mode and this

is the minimum possible fan level at which the shelf can operate in normal cooling mode.

To accommodate for possible changes in the thermal load in the shelf in a long run, an

additional enhancement is implemented. After the shelf stays in normal cooling mode at a

stable fan level for a substantial period of time (specified as a configuration parameter

NORMAL_STABLE_TIME*, with a default of 1 hour), the minimum fan level is decreased by

one and the current fan level is allowed to drop to the new minimum. If the thermal load in the

shelf has decreased, the shelf will continue to operate at the reduced fan level. Otherwise, the

shelf will transition to the abnormal cooling state and the fan level will converge to a new stable

value after several oscillations.

Contents

Main Trademarks Notice Limited and Restricted Rights Legend Contact Address Contents Page Page Page List of Tables Page Page Page About this Manual Overview of Contents Abbreviations This document uses the following terms and abbreviations: The following table describes the conventions used throughout this manual. Conventions Summary of Changes Comments and Suggestions Supported IPMI Commands 1.1 Introduction 1.2 Standard IPMI Commands 1.2.1 Global IPMI Commands 1.2.2 BMC WatchDog Timer Commands The IPMC supports the following BMC WatchDog Timer commands. The IPMC supports the following BMC device and messaging commands. 1.2.3 BMC Device and Messaging Commands Table 1-2 Supported BMC WatchDog Timer Commands 1.2.4 Chassis Device Commands The IPMC supports the following chassis device commands. The IPMC supports the following PEF and alerting commands. 1.2.5 Event Commands The IPMC supports the following event commands. 1.2.7 Sensor Device Commands The IPMC supports the following sensor device commands. Table 1-6 Supported PEF and Alerting Commands (continued) Table 1-7 Supported Sensor Device Commands 1.2.8 FRU Device Commands The IPMC supports the following FRU device commands. The IPMC supports the following SEL device commands. 1.2.9 SDR Device Commands The IPMC supports the following SDR device commands. 1.2.11 LAN Device Commands The IPMC supports the following LAN device commands. The IPMC supports the following serial/modem device commands. 1.2.12 Serial/Modem Device Commands Table 1-10 Supported SEL Commands (continued) 1.3 PICMG 3.0 Commands 1.4 Emerson and Pigeon Point OEM Commands This command requests a SAM switchover. This command instructs the SAM to transition a FRU to the M0 (not installed) state. Table 1-16 Shelf Manager Switchover (Cmd = 0x02) Table 1-17 Set FRU Extracted (Cmd = 0x03) Page FRU Information and Sensor Data Records 2.1 Introduction 2.2 Total Power Consumption 2.3 SAM1000 Physical Shelf Manager 2.3.1 SAM Physical FRU Information 2.3.1.1 Physical Shelf Manager FRU Data, AXP1406 2.3.1.2 Physical Shelf Manager FRU Data, AXP1600 2.3.2 E-Keying 2.3.3 Power Configuration 2.3.4 Sensor Overview 2.3.5 SAM Physical Shelf Manager Analog Sensors 2.3.5.1 Voltage Sensors Table 2-5 Sensor No. 3 3.3 V Voltage Table 2-6 Sensor No. 4 +12 V Voltage 2.3.5.2 Temperature Sensors The following tables describe the analog temperature sensors available on the physical SAM. Table 2-7 Sensor No. 5 +1.8 V Table 2-6 Sensor No. 4 +12 V Voltage (continued) Table 2-9 Sensor No. 7 MAX6656 EXT1@1A Table 2-8 Sensor No. 6 MAX6656 INT@1A (continued) 2.3.6 SAM Module Discrete Sensors 2.3.6.1 Hot Swap Sensor The following table describes the discrete hot swap sensor available on the physical SAM. The following table describes the discrete IPMB link sensor available on the physical SAM. 2.3.6.2 IPMB Link Sensor Table 2-11 Sensor No. 0 FRU 0 HOT_SWAP 2.3.6.3 PEM A Sensor The following table describes the discrete PEM A sensor available on the physical SAM. Table 2-12 Sensor No. 1 IPMB Link (continued) Table 2-13 Sensor No. 9 PEM A 2.3.6.4 PEM B Sensor Two additional NSC Presence sensor support the SAM used in the AXP1600 shelf. Table 2-15 Sensor No. 11 NSC A (AXP1600 Only) Table 2-16 Sensor No. 12 NSC B (AXP1600 Only) Table 2-15 Sensor No. 11 NSC A (AXP1600 Only) (continued) 2.3.6.5 AXP Backplane ID Sensor The following table describes the discrete +12 V B valid sensor available on the physical SAM. 2.3.6.6 +12 V B Valid Sensor Table 2-17 Sensor No. 13 AXP Backplane ID Table 2-18 Sensor No. 14 12 V B Valid 2.3.6.7 +12 V A Valid Sensor The following table describes the discrete +12V A valid sensor available on the physical SAM. Table 2-18 Sensor No. 14 12 V B Valid (continued) Table 2-19 Sensor No. 15 12 V A Valid 2.3.6.8 Fault Event Sensor The following table describes the discrete fault event sensor available on the physical SAM. 2.3.6.9 POST Results Sensor Table 2-20 Sensor No. 16 Fault Event Table 2-21 Sensor No. 17 POST Results 2.3.6.10 Shelf FRU Info Sensor Table 2-21 Sensor No. 17 POST Results (continued) Table 2-22 Sensor No. 18 Shelf FRU Info 2.3.6.11 CPLD State Sensor 2.4 SAM1000 Active (Virtual) Shelf Manager 2.4.1 FRU Information 2.4.1.1 Active Shelf Manager FRU Data, AXP1406 Page 2.4.1.2 Active Shelf Manager FRU Data, AXP1600 Page 2.4.1.3 SAM1000 Shelf Manager FRU Data 2.4.1.4 Fan Tray FRU Data, AXP1406 2.4.1.5 Fan Tray FRUs 1,2, and 3 Data 2.4.1.6 Fan Tray FRUs 4, 5, and 6 Data 2.4.1.7 Fan Tray FRUs 7 and 8 Data 2.4.1.8 Fan Tray FRU Data, AXP1600 2.4.1.9 Fan Tray FRUs 1, 2, and 3 Data, AXP1600 Figure 2-4 Lower Fan Tray Locations, AXP1600 2.4.1.10 Fan Tray FRUs 4, 5, and 6 Data, AXP1600 2.4.1.11 Fan Tray FRUs 7, 8 and 9 Data, AXP1600 2.4.2 E-Keying 2.4.3 Power Configuration The following table describes the power configuration for the Active SAM. 2.4.4 Active SAM1000 Sensor Overview Table 2-24 SAM1000 Active Power Configuration Table 2-25 Active SAM1000 Sensor Overview Page Page Page Page 2.4.5 Active SAM1000 Analog Sensors 2.4.5.1 Fan Speed Sensors Table 2-27 Sensor No. 142 (0x8E) FT 1 Fan 2 Table 2-28 Sensor No. 143 (0x8F) FT 2 Fan 1 Table 2-29 Sensor No. 144 (0x90) FT2 Fan 2 Table 2-27 Sensor No. 142 (0x8E) FT 1 Fan 2 (continued) Table 2-30 Sensor No. 145 (0x91) FT 3 Fan 1 Table 2-31 Sensor No. 146 (0x92) FT 3 Fan 2 Table 2-29 Sensor No. 144 (0x90) FT2 Fan 2 (continued) Table 2-32 Sensor No. 147 (0x93) FT 4 Fan 1 Table 2-33 Sensor No. 148 (0x94) FT 4 Fan 2 Table 2-31 Sensor No. 146 (0x92) FT 3 Fan 2 (continued) Table 2-34 Sensor No. 149 (0x95) FT 5 Fan 1 Table 2-35 Sensor No. 150 (0x96) FT 5 Fan 2 Table 2-33 Sensor No. 148 (0x94) FT 4 Fan 2 (continued) Table 2-36 Sensor No. 151 (0x97) FT 6 Fan 1 Table 2-37 Sensor No. 152 (0x98) FT 6 Fan 2 Table 2-35 Sensor No. 150 (0x96) FT 5 Fan 2 (continued) Table 2-38 Sensor No. 153 (0x99) FT 7 Fan 1 Table 2-39 Sensor No. 154 (0x9A) FT 7 Fan 2 Table 2-37 Sensor No. 152 (0x98) FT 6 Fan 2 (continued) Table 2-40 Sensor No. 155 (0x9B) FT 8 Fan 1 Table 2-41 Sensor No. 156 (0x9C) FT 8 Fan 2 Table 2-39 Sensor No. 154 (0x9A) FT 7 Fan 2 (continued) Table 2-41 Sensor No. 156 (0x9C) FT 8 Fan 2 (continued) Two additional Fan Speed sensors support the SAM used in the AXP1600 shelf. Table 2-42 Sensor No. 157 (0x9D) FT 9 Fan 1, AXP1600 2.4.5.2 Fan Voltage Sensors The following tables describe the analog fan voltage sensors available on the Active SAM. Table 2-43 Sensor No. 158 (0x9E) FT 9 Fan 2, AXP1600 Table 2-44 Sensor No. 171 (0xAB) FT 1 Fan 1 12 V Table 2-45 Sensor No. 172 (0xAC) FT 1 Fan 1 VBias Table 2-46 Sensor No. 173 (0xAD) FT 1 Fan 2 12 V Table 2-44 Sensor No. 171 (0xAB) FT 1 Fan 1 12 V (continued) Table 2-47 Sensor No. 174 (0xAE) FT 1 Fan 2 VBias Table 2-46 Sensor No. 173 (0xAD) FT 1 Fan 2 12 V (continued) Table 2-48 Sensor No. 175 (0xAF) FT 2 Fan 1 12 V Table 2-49 Sensor No. 176 (0xB0) FT 2 Fan 1 VBias Table 2-50 Sensor No. 177 (0xB1) FT 2 Fan 2 12 V Table 2-51 Sensor No. 178 (0xB2) FT 2 Fan 2 VBias Table 2-49 Sensor No. 176 (0xB0) FT 2 Fan 1 VBias (continued) Table 2-52 Sensor No. 179 (0xB3) FT 3 Fan 1 12 V Table 2-51 Sensor No. 178 (0xB2) FT 2 Fan 2 VBias (continued) Table 2-53 Sensor No. 180 (0xB4) FT 3 Fan 1 VBias Table 2-54 Sensor No. 181 (0xB5) FT 3 Fan 2 12 V Table 2-55 Sensor No. 182 (0xB6) FT 3 Fan 2 VBias Table 2-56 Sensor No. 183 (0xB7) FT 4 Fan 1 12 V Table 2-54 Sensor No. 181 (0xB5) FT 3 Fan 2 12 V (continued) Table 2-57 Sensor No. 184 (0xB8) FT 4 Fan 1 VBias Table 2-56 Sensor No. 183 (0xB7) FT 4 Fan 1 12 V (continued) Table 2-58 Sensor No. 185 (0xB9) FT 4 Fan 2 12 V Table 2-59 Sensor No. 186 (0xBA) FT 4 Fan 2 VBias Table 2-60 Sensor No. 187 (0xBB) FT 5 Fan 1 12 V Table 2-61 Sensor No. 188 (0xBC) FT 5 Fan 1 VBias Table 2-59 Sensor No. 186 (0xBA) FT 4 Fan 2 VBias (continued) Table 2-62 Sensor No. 189 (0xBD) FT 5 Fan 2 12 V Table 2-61 Sensor No. 188 (0xBC) FT 5 Fan 1 VBias (continued) Table 2-63 Sensor No. 190 (0xBE) FT 5 Fan 2 VBias Table 2-64 Sensor No. 191 (0xBF) FT 6 Fan 1 12 V Table 2-65 Sensor No. 192 (0xC0) FT 6 Fan 1 VBias Table 2-66 Sensor No. 193 (0xC1) FT 6 Fan 2 12 V Table 2-64 Sensor No. 191 (0xBF) FT 6 Fan 1 12 V (continued) Table 2-67 Sensor No. 194 (0xC2) FT 6 Fan 2 VBias Table 2-66 Sensor No. 193 (0xC1) FT 6 Fan 2 12 V (continued) Table 2-68 Sensor No. 195 (0xC3) FT 7 Fan 1 +12V Table 2-69 Sensor No. 196 (0xC4) FT 7 Fan 1 VBias Table 2-70 Sensor No. 197 (0xC5) FT 7 Fan 2 12 V Table 2-71 Sensor No. 198 (0xC6) FT 7 Fan 2 VBias Table 2-69 Sensor No. 196 (0xC4) FT 7 Fan 1 VBias (continued) Table 2-72 Sensor No. 199 (0xC7) FT 8 Fan 1 12 V Table 2-71 Sensor No. 198 (0xC6) FT 7 Fan 2 VBias (continued) Table 2-73 Sensor No. 200 (0xC8) FT 8 Fan 1 VBias Table 2-74 Sensor No. 201 (0xC9) FT 8 Fan 2 12 V Table 2-75 Sensor No. 202 (0xCA) FT 8 Fan 2 VBias Table 2-74 Sensor No. 201 (0xC9) FT 8 Fan 2 12 V (continued) Additional Fan Voltage sensors support the SAM used in the AXP1600 shelf. Table 2-76 Sensor No. 203 (0xCB) FT 9 Fan 1 12 V, AXP1600 Table 2-77 Sensor No. 204 (0xCC) FT 9 Fan 1 VBias, AXP1600 Table 2-78 Sensor No. 205 (0xCD) FT 9 Fan 2 12 V, AXP1600 Table 2-79 Sensor No. 206 (0xCE) FT 9 Fan 2 VBias, AXP1600 Table 2-77 Sensor No. 204 (0xCC) FT 9 Fan 1 VBias, AXP1600 (continued) 2.4.6 SAM Active Shelf Manager Discrete Sensors 2.4.6.1 Hot Swap Sensors Table 2-81 Sensor No. 2 (0x02) FRU 1 HOT_SWAP Table 2-82 Sensor No. 3 (0x03) FRU 2 HOT_SWAP Table 2-83 Sensor No. 4 (0x04) FRU 3 HOT_SWAP Table 2-81 Sensor No. 2 (0x02) FRU 1 HOT_SWAP (continued) Table 2-84 Sensor No. 5 (0x05) FRU 4 HOT_SWAP Table 2-85 Sensor No. 6 (0x06) FRU 5 HOT_SWAP Table 2-83 Sensor No. 4 (0x04) FRU 3 HOT_SWAP (continued) Table 2-86 Sensor No. 7 (0x07) FRU 6 HOT_SWAP Table 2-85 Sensor No. 6 (0x06) FRU 5 HOT_SWAP (continued) Table 2-87 Sensor No. 8 (0x08) FRU 7 HOT_SWAP Table 2-88 Sensor No. 9 (0x09) FRU 8 HOT_SWAP 2.4.6.2 Shm Fault Event Sensor The following table describes the discrete Shm Fault Event sensor available on the Active SAM. A FRU 9 Hot Swap sensor supports the SAM used in the AXP1600 shelf. Table 2-89 Sensor No. 10 (0x0A) FRU 9 HOT_SWAP, AXP1600 2.4.6.3 IPMB Link Sensor The following table describes the discrete IPMB link sensors available on the Active SAM. Table 2-90 Sensor No. 11 (0x20) Fault Event Sensor (continued) Table 2-91 Sensor No. 12 (0x0B) IPMB LINK 1 Table 2-92 Sensor No. 13 (0x0C) IPMB LINK 2 Table 2-93 Sensor No. 14 (0x0D) IPMB LINK 3 Table 2-94 Sensor No. 15 (0x0E) IPMB LINK 4 Table 2-95 Sensor No. 16 (0x0F) IPMB LINK 5 Table 2-93 Sensor No. 14 (0x0D) IPMB LINK 3 (continued) Table 2-96 Sensor No. 17 (0x10) IPMB LINK 6 Table 2-95 Sensor No. 16 (0x0F) IPMB LINK 5 (continued) Table 2-97 Sensor No. 18 (0x11) IPMB LINK 7 Table 2-98 Sensor No. 19 (0x12) IPMB LINK 8 Table 2-99 Sensor No. 20 (0x14) IPMB LINK 9 Table 2-100 Sensor No. 21 (0x14) IPMB LINK 10 Table 2-98 Sensor No. 19 (0x12) IPMB LINK 8 (continued) Table 2-101 Sensor No. 22 (0x15) IPMB LINK 11 Table 2-100 Sensor No. 21 (0x14) IPMB LINK 10 (continued) Table 2-102 Sensor No. 23 (0x16) IPMB LINK 12 Table 2-103 Sensor No. 24 (0x17) IPMB LINK 13 Table 2-104 Sensor No. 25 (0x18) IPMB LINK 14 Table 2-103 Sensor No. 24 (0x17) IPMB LINK 13 (continued) Additional IPMB LINK sensors support the SAM used in the AXP1600 shelf. Table 2-105 Sensor No. 26 (0x19) IPMB LINK 15, AXP1600 Table 2-106 Sensor No. 27 (0x1A) IPMB LINK 16, AXP1600 Table 2-107 Sensor No. 28 (0x1B) IPMB LINK 17 Table 2-108 Sensor No. 29 (0x1C) IPMB LINK 18, AXP1600 Table 2-106 Sensor No. 27 (0x1A) IPMB LINK 16, AXP1600 (continued) Table 2-109 Sensor No. 30 (0x1D) IPMB LINK 19, AXP1600 Table 2-108 Sensor No. 29 (0x1C) IPMB LINK 18, AXP1600 (continued) Table 2-110 Sensor No. 31 (0x1E) IPMB LINK 20, AXP1600 Table 2-111 Sensor No. 32 (0x1F) IPMB LINK 21, AXP1600 2.4.6.4 Telco Alarm Sensor Table 2-111 Sensor No. 32 (0x1F) IPMB LINK 21, AXP1600 (continued) Table 2-112 Sensor No. 131 (0x83) TELCO Alarms 2.4.6.5 BMC Watchdog Sensor The following table describes the discrete BMC Watchdog sensor available on the Active SAM. The following table describes the discrete system event sensor available on the Active SAM. 2.4.6.6 System Event Table 2-113 Sensor No. 132 (0x84) BMC Watchdog 2.4.6.7 Fan Tray Presence Sensor The following table describes the discrete fan tray presence sensor available on the Active SAM. Table 2-114 Sensor No. 133 (0x85) SYSTEM EVENT (continued) Table 2-115 Sensor No. 220 (0xDC) Fan Tray 1 Table 2-116 Sensor No. 221 (0xDD) Fan Tray 2 Table 2-117 Sensor No. 222 (0xDE) Fan Tray 3 Table 2-118 Sensor No. 223 (0xDF) Fan Tray 4 Table 2-119 Sensor No. 224 (0xE0) Fan Tray 5 Table 2-120 Sensor No. 225 (0xE1) Fan Tray 6 Table 2-121 Sensor No. 226 (0xE2) Fan Tray 7 Table 2-122 Sensor No. 227 (0xE3) Fan Tray 8 An additional Fan Tray Presence sensor supports the SAM used in the AXP1600 shelf. Table 2-123 Sensor No. 228 (0xE4) Fan Tray 9, AXP1600 2.4.6.8 Fan Tray -48 V Fuse Sensor Table 2-123 Sensor No. 228 (0xE4) Fan Tray 9, AXP1600 (continued) Table 2-124 Sensor No. 230 (0xE6) FT 1 -48 V Fuse Table 2-125 Sensor No. 231 (0xE7) FT 2 -48 V Fuse Table 2-126 Sensor No. 233 (0xE9) FT 4 -48 V Fuse Table 2-127 Sensor No. 232 (0xE8) FT 3 -48 V Fuse Table 2-128 Sensor No. 234 (0xEA) FT 5 -48 V Fuse Table 2-129 Sensor No. 235 (0xEB) FT 6 -48 V Fuse Table 2-130 Sensor No. 236 (0xEC) FT 7 -48 V Fuse Table 2-131 Sensor No. 237 (0xED) FT 8 -48 V Fuse An additional -48 V Fuse sensor supports the SAM used in the AXP1600 shelf. Table 2-132 Sensor No. 238 (0xEE) FT9 -48 V Fuse, AXP1600 2.5 Power Entry Module Sensor Data Records 2.5.1 PEM FRU Information 2.5.2 E-Keying 2.5.3 Power Configuration 2.5.4 Power Entry Module Sensor Overview The following table lists all IPMI sensors available on the Power Entry Module. 2.5.5 Power Entry Module Analog Sensors The analog sensors available on the PEM can be divided into the following four categories: Table 2-134 IPMI Sensors on the PEM 2.5.5.1 Voltage Sensors The following sensors measure voltages of the PEM. Table 2-135 Sensor No. 2 +3.3 V Table 2-136 Sensor No. 3 +8 V Table 2-137 Sensor No. 4 +12 V Backplane Table 2-138 Sensor No. 11 +48.0 V Feed Table 2-136 Sensor No. 3 +8 V (continued) Table 2-139 Sensor No. 12 +7.5 V PEM Table 2-138 Sensor No. 11 +48.0 V Feed (continued) Table 2-140 Sensor No. 13 +8 V PEM Feed 2 Table 2-141 Sensor No. 15 +8 V PEM Feed 1 2.5.5.2 Current Sensor The following table describes the sensor that measures the +12V current on the PEM. Table 2-141 Sensor No. 15 +8 V PEM Feed 1 (continued) Table 2-142 Sensor No. 14 +12 V Current 2.5.6 Power Entry Module Discrete Sensors The following tables describe these discrete sensors available on the PEM: 2.5.6.1 Hot Swap Sensor Table 2-143 Sensor No. 10 DS75 Temp Table 2-144 Sensor #0, Hot Swap 2.5.6.2 IPMB Link Sensor The following table describes the IPMB link sensor on the PEMs. Table 2-144 Sensor #0, Hot Swap (continued) Table 2-145 Sensor #1, IPMB Physical 2.5.7 Circuit Breaker State Sensors Table 2-147 Sensor #6 CB 2 Table 2-148 Sensor No. 7 CB 3 Table 2-149 Sensor No. 8 CB 4 Table 2-147 Sensor #6 CB 2 (continued) Table 2-150 Sensor No. 9 CB 5 Table 2-149 Sensor No. 8 CB 4 (continued) OEM Sensors 3.1 OEM Sensors 3.1.1 Telco Alarms (Pigeon Point OEM) 3.1.2 AXP Backplane ID (Emerson OEM) 3.1.3 POST Results (Emerson OEM) 3.1.4 Shelf FRU Info (Emerson OEM) 3.1.5 FT -48 V Fuse (Emerson OEM) 3.1.6 Shm Fault Event (Emerson OEM) A Sensor Events A.1 Introduction A.2 Cooling Management in Normal Operation Mode A.3 Cooling Management in Abnormal Operation Mode A.4 Adaptive Adjustment of the Minimum Fan Level Page A.5 FRU State Management Table A-1 FRU State Table for Nonrecoverable Threshold Events from Temperature Sensors (continued) Page B B.1 Emerson Network Power - Embedded Computing Documents B.2 Manufacturers Documents B.3 Related Specifications