How to change FAN Speed on FWA-6510

 

Purpose

There are 3 FAN modules on FWA-6510 series. User is able to change FAN speed manually by sending IPMI command to BMC.  

Target Audience

User who uses this appliance with BMC accessible (e.g. through KCS , NC-SI..etc) conditions

Minimum requirement

1. FWA-6510
2. IPMItool is supported to run commands in local OS or remote clients

FAN Level Reference Table 

FAN level	Speed on FAN units
Level 1	FAN1 | 4100 RPM FAN2 | 3900 RPM FAN3 | 4000 RPM
Level 2	FAN1 | 6000 RPM FAN2 | 5900 RPM FAN3 | 6000 RPM
Level 3	FAN1 | 7700 RPM FAN2 | 7600 RPM FAN3 | 7700 RPM
Level 4  (Full Speed)	FAN1 | 8800 RPM FAN2 | 8600 RPM FAN3 | 8800 RPM

 

Commands & Steps

Read FAN Level :  ipmitool raw 0x2e 0x95 0x39 0x28 0x00 0x00

Response : 39 28 00 <smart fan status> <Level>

By read FAN level command, the 4^th byte of response means smart FAN status. (01h = smart fan is eanbled ; 00h = smart fan is disabled)

The controllable FAN level is from 1 to 4 as following table 

Set FAN Speed: ipmitool raw 0x2e 0x95 0x39 0x28 0x00 0x02 <Level>

BMC will temporary disable smart FAN function when FAN speed was manually set. Smart FAN control will be recovered after system AC power cycle or by sending IPMI command (see below)

Enable Smart FAN: ipmitool raw 0x2e 0x95 0x39 0x28 0x00 0x01