btrfs scrub: script and systemd timers to run monthly
#! /bin/bash | |
####################################################### | |
# This is a helper script to be used in a systemd timer | |
# or cron job to scrub all mounted btrfs filessytems | |
# | |
# $Author: gbrks | |
# $Revision 0.1 | |
# $Date: 2015.05.15 | |
# | |
# Update email address below | |
EMAIL_SUBJECT_PREFIX="$HOSTNAME BTRFS - " | |
EMAIL_ADDRESS="<email@address>" | |
#Mailgun API | |
MG_API="api:key-<apikey>" | |
MG_DOMAIN="<domain>" | |
MG_FROM="<email_from>" | |
LOG_FILE="/var/log/btrfs-scrub.log" | |
TMP_OUTPUT="/tmp/btrfs-scrub.out" | |
# redirect all stdout to log gile | |
exec >> $LOG_FILE | |
# timestamp the job | |
echo "[`date`] btrfs scrub job started." | |
echo "btrfs scrub job started on `date`" > $TMP_OUTPUT | |
echo "----------------------------------------" >> $TMP_OUTPUT | |
# for each btrfs type system mounted, scrub and record output | |
while read d m t x | |
do | |
[[ $t != "btrfs" ]] && continue | |
echo "scrubbing $m" >> $TMP_OUTPUT | |
echo "[`date`] scrubbing $m" | |
btrfs scrub start -Bd $m >> $TMP_OUTPUT | |
echo "" >> $TMP_OUTPUT | |
done </proc/mounts | |
echo "----------------------------------------" >> $TMP_OUTPUT | |
echo "btrfs scrub job finished on `date`" >> $TMP_OUTPUT | |
curl -s --user "$MG_API" \ | |
https://api.mailgun.net/v3/$MG_DOMAIN/messages \ | |
-F from="$MG_FROM" \ | |
-F to="$EMAIL_ADDRESS" \ | |
-F subject="$EMAIL_SUBJECT_PREFIX Scrub Job Completed" \ | |
-F text="$(cat $TMP_OUTPUT)" \ | |
echo "[`date`] Scrub job ended." | |
exit 0; |
[Unit] | |
Description=btrfs scrub | |
[Service] | |
Type=simple | |
ExecStart=/usr/local/bin/btrfs-scrub |
[Unit] | |
Description=Runs btrfs scrub on all discs monthly | |
[Timer] | |
OnCalendar=monthly | |
[Install] | |
WantedBy=timers.target |
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Shouldn't the service be "oneshot"? Other than that: Thanks a lot!