PreventSpindown.py

#! /usr/bin/python

# This script runs once a minute via crontab. /media/NETWRK is a router-attached network drive mounted at startup.
# Since the 5yo 2TB WD tends to spin down every 90 seconds or so, this simply pings it once a minute to keep it active.
# Settings allow sleep periods during certain hours of the day and days of the week where the drive will probably not be in use.

import datetime as dt
import sys

Enabled=1
WeekDays = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]
SleepStart = 23
SleepEnd = 6
SleepDays = ["Saturday","Sunday"]
Filename = "/media/NETWRK/tmp.txt"

if not Enabled:
        # print("Terminated by enable")
        sys.exit()

Hour = dt.datetime.today().hour
DOW = dt.datetime.today().weekday()

# print(str(Hour) + ", " + str(DOW))

if SleepStart > SleepEnd:
        if Hour > SleepStart or Hour < SleepEnd:
                # print("Terminated by Sleep")
                sys.exit()
else:
        if Hour > SleepStart and Hour < SleepEnd:
                # print("Terminated by Sleep")
                sys.exit()

for w in SleepDays:
        if WeekDays[DOW] == w:
                # print("Terminated by DOW")
                sys.exit()

# print("Got here!")
f = open(Filename,"w")
f.write("Temporary String " + str(dt.datetime.now()))
f.close()