How to check / change FWA-6172 FAN speed on Advantech BMC built-in platforms

Purpose:

Check or Set recent SMART FAN settings from the FWA-6172 BMC

Target Audience:

For FWA-6172 and BMC FW is using Advantech BMC code, 

Note1:

Please DO NOT set  FAN speed lower than LCR (lower critical. setting, ex 1200) value or it may trigger system events and BMC will force the speed to full on few systems. 

Steps:

FWA-6172 default support 4 FAN modules, and Each FAN module has its own FAN controller, The system requires users to key in each FAN module read/set command.

READ smart fan was activate or not , this command is also executable through IOL

FAN module	IPMI Command
FAN1	# ipmitool raw 0x2c 0x16 0x00 0x00
FAN2	# ipmitool raw 0x2c 0x16 0x00 0x01
FAN3	# ipmitool raw 0x2c 0x16 0x00 0x02
FAN4	# ipmitool raw 0x2c 0x16 0x00 0x03

example: read FWA-6172 FAN3 speed status

# ipmitool raw 0x2c 0x16 0x00 0x02
00 ff 14 01

–You will have 4 bytes returned value (e.g. 00 ff 14 01)

–2nd byte = fan lv value (ff indicates that the reading may change dynamically because it is in Smart Fan mode. Please also check the last byte)

–Last byte 

• 01 = smart fan Enabled
• 00 = smart fan Disabled = manual set

SET Fan Level* , this command is also executable through IOL

FAN module	IPMI Command
FAN1	# ipmitool raw 0x2c 0x15 0x00 0x00 <FAN_LEVEL(unit:%) range 35~100(DEC), or 0x23~0xFF(HEX) >
FAN2	# ipmitool raw 0x2c 0x15 0x00 0x01 <FAN_LEVEL(unit:%) range 35~100(DEC), or 0x23~0xFF(HEX) >
FAN3	# ipmitool raw 0x2c 0x15 0x00 0x02 <FAN_LEVEL(unit:%) range 35~100(DEC), or 0x23~0xFF(HEX) >
FAN4	# ipmitool raw 0x2c 0x15 0x00 0x03 <FAN_LEVEL(unit:%) range 35~100(DEC), or 0x23~0xFF(HEX) >

Manually Enable SMART fan :

FAN module	IPMI Command
FAN1	# ipmitool raw 0x2c 0x15 0 0 0xff
FAN2	# ipmitool raw 0x2c 0x15 0 1 0xff
FAN3	# ipmitool raw 0x2c 0x15 0 2 0xff
FAN4	# ipmitool raw 0x2c 0x15 0 3 0xff

* Manually set FAN LV will disable BMC Smart FAN function ,  it requires BMC reset or commands to get smart fan back