3 # Author: Alan J. Pippin
4 # Description: This script will attempt to scrub a given EXT drive
5 # This script ensures that only 1 scrub operation is
6 # running at any given time. This serializes the zfs
7 # scrub process for any pool.
9 PATH=/usr/sbin:/sbin:/etc/bin:$PATH
13 logfile=/var/log/zfs/zfs-scrub.log
17 # Check to see if any zfs filesystem has a scrub being performed on it now.
18 # If it does, we cannot perform more than one scrub operation at a time.
20 zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
22 # Another zpool scrub operation is already running
23 # Wait until it is done before continuing
24 ransleep=$(($RANDOM % $maxsleeptime))
27 # Another zpool scrub operation is not running
33 echo "$date: Scrub started for zfs pool $i" >> $logfile
34 ext-drive-power on >> /dev/null
38 # Wait until the scrub completes, and check for any errors
40 zpool status $i | grep scrub: | grep "in progress" > /dev/null 2>&1
42 # Our zpool scrub operation is still running
43 # Wait until it is done before continuing
44 ransleep=$(($RANDOM % $maxsleeptime))
47 # Our scrub operation has completed
53 echo "$date: Scrub completed for zfs pool $i" >> $logfile
55 # Check for any scrub errors
56 zpool status $i | grep scrub: | grep "with 0 errors" > /dev/null 2>&1
58 # The scrub found errors
59 zpool status $i | /usr/bin/mailx -s "zpool scrub $i found errors" $mailto
62 # Power off the EXT drive
64 ext-drive-power off >> /dev/null