Using CentOS 7, the script was not able to find my SA120. It would appear that the sg_ses command does not support the flag "--maxlen=32768". After removing this argument from the script, it works just fine.

When #5 "Allows script to set fan speed on multiple enclosures" was merged in it broke the script with mixed tabs and spaces.

As-is it no longer works.

I don't have any hardware error lights on, but the script always says Fan 3 is at 0 RPM. Which specific fan is that? I may try to replace one or all the fans, but I'm trying to narrow down which one might have failed.

Hooked one up to a proxmox box. All drives pop right in, but the script continually doesn't find the enclosure. these fans are driving me nuts.

if len(sys.argv) < 1:
    print("python fancontrol.py 1-7")
    sys.exit(-1)

fan = int(sys.argv[1])

if fan <= 0 or fan > 6:
    raise Exception("Fan speed must be between 1 and 7")

1. len(sys.argv) < 1 will never happen because sys.argv[0] is always the name of the file

2. if fan <= 0 or fan > 6 to get 1-7?? if fan < 1 or fan > 7 -- as-is picking 7 breaks script

            print("Enclosure found on " + device);

3. there are no semi-colon endings in python

I just wanted to say how great this is!!! Thanks for making life easy, man Open Source is just great