How to check / change FAN speed on platforms with CIoT BMC inside

Pre-requirement & reference:

How to approach BMC on Advantech CIoT platforms

How to set BMC IP address

How to setup BMC IP address via BIOS

* Advantech’s IANA Enterprise Number used for OEM commands is 002839h

* IANA = Internet Assigned Number Authority 

Purpose:

Check/Set recent  SMART FAN settings from BMC

Target Audience:

All Advantech CIoT platforms' users and BMC FW is using Advantch BMC code, including FWA, SKY-7K, SKY-8K, SKY-9K Series. 

PS: The BMC FW of Following models are not using Advantech BMC FW, please don't use this command to control following models FAN speed. 

FWA-6520/5020/6510/6500

SKY-7210/7221/8200

Attention please

1. It doesn't use command to set  FAN speed  when BMC detects a FAN speed as lower than LCR (lower critical. setting, ex 1200) ,

2. When a FAN speed status is  reported LCR ,the other FAN speed will force set as 100%

How To:

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

#ipmitool raw 0x2c 0x16 0 0
00 ff 4e 01

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

–2nd byte = fan lv value

–Last byte 

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

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

# ipmitool raw 0x2c 0x15 0x00 0x00 <FAN_LEVEL(unit:%) ,range 35~100(DEC), or 0x23~0xFF(HEX) >

Manually Enable SMART fan :

# ipmitool raw 0x2c 0x15 0 0 0xff

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