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https://github.com/lkddi/dell-fans-controller-docker.git
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lkddi
4f2042cbb4
- 修复温度读取功能，使用正确的正则表达式从IPMI传感器输出中提取温度值 - 通过实验校准确定20%设置对应4800 RPM，实现准确的RPM到百分比转换 - 修改sensor()方法使用ipmitool sdr命令获取更准确的传感器数据 - 添加重试机制和错误处理 - 优化风扇控制逻辑，增加模式切换和状态跟踪
192 lines
7.9 KiB
Python
192 lines
7.9 KiB
Python
import subprocess
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import time
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import re
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from controller.logger import logger
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class IpmiTool:
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def __init__(self, host: str, username: str, password: str):
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if not host or not username or not password:
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raise ValueError("host, username and password must be provided")
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self.host = host
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self.username = username
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self.password = password
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def run_cmd(self, cmd: str) -> str:
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basecmd = f'ipmitool -H {self.host} -I lanplus -U {self.username} -P {self.password}'
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command = f'{basecmd} {cmd}'
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retry_count = 3 # 设置重试次数
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for attempt in range(retry_count):
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try:
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# print(f"Executing command: {command}") # 添加调试信息
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result = subprocess.run(command, shell=True, capture_output=True, text=True, timeout=30)
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if result.returncode != 0:
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raise RuntimeError(
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f'IPMI 命令执行失败: {cmd}\n错误详情: {result.stderr}' # 更清晰的错误提示
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)
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# 添加网络和认证排查提示
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print("请检查以下内容：")
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print("1. 确保 BMC 地址可访问（ping 测试或网络配置）。")
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print("2. 验证用户名、密码是否正确。")
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print("3. 检查目标设备的 IPMI 功能是否启用。")
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return result.stdout
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except subprocess.TimeoutExpired:
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if attempt < retry_count - 1:
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logger.warning(f'命令超时，正在重试... (尝试次数 {attempt + 1}/{retry_count})')
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time.sleep(5) # 每次重试前等待 5 秒
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else:
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raise RuntimeError('IPMI 命令超时。请检查网络连接或服务器状态。') # 更明确的错误提示
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def mc_info(self) -> str:
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"""
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execute ipmitool command mc info
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:return:
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"""
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return self.run_cmd(cmd='mc info')
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def sensor(self) -> str:
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"""
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execute ipmitool command sdr to get sensor data
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:return:
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"""
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return self.run_cmd(cmd='sdr')
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def temperature(self) -> list:
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"""
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get current temperature
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:return:
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"""
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data = self.sensor()
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temperatures = []
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import re
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for line in data.splitlines():
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if 'Temp' in line and 'degrees C' in line:
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# 提取温度值，例如从 " 25 degrees C" 中提取 25
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temp_part = line.split('|')[1] # 获取中间列的内容
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# 使用正则表达式提取数字
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match = re.search(r'(\d+(\.\d+)?)\s+degrees C', temp_part)
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if match:
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temp_value = float(match.group(1))
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temperatures.append(temp_value)
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return temperatures
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def fan_speeds(self) -> list:
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"""
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get current fan speeds
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:return: list of fan speeds in percentage
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"""
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data = self.sensor()
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fan_speeds = []
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for line in data.splitlines():
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if 'Fan' in line and 'RPM' in line:
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# Extract numeric value from line - format is typically "Fan1 | 1234 | RPM |"
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parts = line.split('|')
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if len(parts) >= 2:
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try:
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# Extract the value and convert RPM to percentage if possible
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# For Dell servers, we may need to get duty cycle instead
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value_str = parts[1].strip()
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if value_str.isdigit():
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rpm = int(value_str)
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# Placeholder: we might need to use raw commands to get duty cycle
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# For now, return the raw value
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fan_speeds.append(rpm)
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except ValueError:
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continue
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return fan_speeds
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def get_fan_duty_cycle(self) -> int:
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"""
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get current fan duty cycle/percentage
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:return: current fan duty cycle in percentage
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"""
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try:
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# Raw command to get current fan duty cycle
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result = self.run_cmd('raw 0x30 0x31 0x01')
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# Parse the hex result to get duty cycle
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result_parts = result.strip().split()
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if result_parts and len(result_parts) >= 1:
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# The command should return a hex value representing the duty cycle
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duty_cycle_hex = result_parts[-1]
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duty_cycle = int(duty_cycle_hex, 16)
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# Ensure the value is in valid range (0-100)
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if 0 <= duty_cycle <= 100 and duty_cycle != 0:
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# If we get a reasonable value (not 0), return it
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return duty_cycle
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elif duty_cycle == 0:
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# Value of 0 might indicate auto mode or that raw command doesn't return duty cycle on this system
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logger.info('原始命令返回0，尝试从RPM估算风扇百分比')
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except Exception as e:
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logger.warning(f'获取风扇占空比的原始命令失败: {e}')
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# If raw command fails or returns 0, get fan speeds from sensor data and convert to approximate percentage
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try:
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data = self.sensor()
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fan_rpm_values = []
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import re
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for line in data.splitlines():
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if 'Fan' in line and 'RPM' in line and 'degrees C' not in line:
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# Extract numeric value from "FanX RPM | XXXX RPM | ok" format
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parts = line.split('|')
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if len(parts) >= 2:
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rpm_part = parts[1].strip()
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# Use regex to extract RPM value
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rpm_match = re.search(r'(\d+)\s+RPM', rpm_part)
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if rpm_match:
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rpm_value = int(rpm_match.group(1))
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fan_rpm_values.append(rpm_value)
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if fan_rpm_values:
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# Calculate average RPM
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avg_rpm = sum(fan_rpm_values) / len(fan_rpm_values)
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# Based on calibration: 20% setting results in 4800 RPM
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# Therefore, 100% would theoretically be 24000 RPM (4800 * 5)
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# This seems high for typical server fans, but we'll use the calibrated ratio
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# When 20% = 4800 RPM, the percentage = (current_rpm / 4800) * 20
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calibrated_rpm_at_20_percent = 4800
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calibrated_percentage = 20 # This is the known setting
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# Calculate the theoretical max RPM based on the calibration
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theoretical_max_rpm = calibrated_rpm_at_20_percent * (100 // calibrated_percentage) # 100/20 = 5
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# Calculate the current percentage
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estimated_percentage = min(100, int((avg_rpm / theoretical_max_rpm) * 100))
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# Round to nearest 5 to match typical percentage steps
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estimated_percentage = round(estimated_percentage / 5) * 5
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return min(100, estimated_percentage)
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except Exception as e:
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logger.warning(f'解析传感器数据获取风扇RPM失败: {e}')
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return -1 # Return -1 if unable to determine
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def switch_fan_mode(self, auto: bool):
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"""
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switch the fan mode
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:param auto:
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:return:
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"""
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manual_cmd = 'raw 0x30 0x30 0x01 0x00'
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auto_cmd = 'raw 0x30 0x30 0x01 0x01'
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return self.run_cmd(cmd=auto_cmd) if auto else self.run_cmd(cmd=manual_cmd)
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def set_fan_speed(self, speed: int):
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"""
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set fan speed
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:param speed:
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:return:
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"""
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if speed < 10 or speed > 100:
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raise ValueError(
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'speed must be between 10 and 100'
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)
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self.switch_fan_mode(auto=False)
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base_cmd = 'raw 0x30 0x30 0x02 0xff'
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return self.run_cmd(cmd=f'{base_cmd} {hex(speed)}') |