init

ipmihddtemp.py

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+import math
+import subprocess
+import time
+from pySMART import DeviceList
+
+MIN_FAN_SPEED = 30
+MAX_FAN_SPEED = 100
+
+MIN_HDD_TEMP = 30
+MAX_HDD_TEMP = 50
+
+devlist = DeviceList()
+
+# Put fans in full speed mode
+subprocess.run(["ipmitool", "raw", "0x30", "0x45", "0x01", "0x01"])
+
+def main():
+    while True:
+        for device in devlist:
+            device.update()
+
+        # Linear fan speed between MIN_FAN_SPEED and MAX_FAN_SPEED
+        fan_speed = max(
+            min(
+                math.ceil(
+                    MIN_FAN_SPEED
+                    + (
+                        (MAX_FAN_SPEED - MIN_FAN_SPEED)
+                        * (
+                            (max([x.temperature for x in devlist]) - MIN_HDD_TEMP)
+                            / (MAX_HDD_TEMP - MIN_HDD_TEMP)
+                        )
+                    )
+                ),
+                MAX_FAN_SPEED,
+            ),
+            MIN_FAN_SPEED,
+        )
+
+        subprocess.run(["ipmitool", "raw", "0x30", "0x70", "0x66", "0x01", "0x00", hex(fan_speed)])
+
+        time.sleep(10)