DrivePolling

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Script to Check if Disk Status Changes

Run this Script in the Local Crontab:
crontab -e
#*/5 *   * * *   root    bash /etc/backup-platten-polling > /dev/null 2>&1

If the online Status changes, the script create or delete the lock file in /var/lock/

If the lockfile is available, you can Backup Data or use the disk for other work.

#!/bin/bash
#
#/etc/backup-platten-polling
 
#folder to check for drives
device="/dev/disk/by-id/"
#this is the device ID
platte1="usb-BUFFALO_HD-PXU2_001010070301C5160-0:0-part1"
#folder to store the lock files (lock files named by id)
lock="/var/lock/"
#mail-recipient
mailadresse="script@firma.de"
 
cd $device
if ls -l| grep "$platte1">/dev/null
	then
	echo "Platte 1 verbunden"
	cd $lock
	if ls -l|grep "$platte1">/dev/null
		then
		echo "pl 1 nothing to do"
		else
		echo "pl 1 file anlegen"
		echo "Erste Backup-Platte wurde erfolgreich verbunden und die Nacht zum Backup herangezogen." | mail -s "Festplatte 1 verbunden" $mailadresse
		touch "$platte1"
	fi
cd $device
else
	echo "Platte 1 getrennt"
	cd $lock
	if ls -l|grep "$platte1">/dev/null
		then
		echo "pl 1 auswerfen"
                rm "$platte1"
                echo "Erste Backup-Platte wurde getrennt." | mail -s "Festplatte 1 getrennt" $mailadresse
		else
		echo "pl 1 nix zu tun"
	fi
cd $device
fi
 
exit 0
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