Huawei RH2288H v3

Manually setting FAN speed
Usage: ipmcset -d fanmode -v <mode> [timeout]
Modes are:
    0    auto regulate fan speed, without parameter [timeout]
    1    manual regulate fan speed
         without parameter [timeout], default timeout(30 seconds)
         with parameter [timeout], timeout range <0-100000000>,(0 means max timeout)
Usage: ipmcset -d fanlevel -v <value> [fanid]
Note :
      1.Set fan speed level for all fans, without parameter [fanid]
      2.Set fan speed level for specific fan, with parameter [fanid]
       [fanid] range <1-4>
ipmcset -d fanmode -v 1 0
ipmcset -d fanlevel -v 26
Manually setting the fan speed to 26% is sufficient in a controlled environment (22°C) and without GPUs.