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.
11 logfile=/var/log/zfs/zfs-scrub.log
15 # Check to see if any zfs filesystem has a scrub being performed on it now.
16 # If it does, we cannot perform more than one scrub operation at a time.
18 /sbin/zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
20 # Another zpool scrub operation is already running
21 # Wait until it is done before continuing
22 ransleep=$(($RANDOM % $maxsleeptime))
25 # Another zpool scrub operation is not running
31 echo "$date: Scrub started for zfs pool $i" >> $logfile
32 /usr/local/etc/bin/ext-drive-power on >> /dev/null
36 # Wait until the scrub completes, and check for any errors
38 /sbin/zpool status $i | grep scrub: | grep "in progress" > /dev/null 2>&1
40 # Our zpool scrub operation is still running
41 # Wait until it is done before continuing
42 ransleep=$(($RANDOM % $maxsleeptime))
45 # Our scrub operation has completed
51 echo "$date: Scrub completed for zfs pool $i" >> $logfile
53 # Check for any scrub errors
54 /sbin/zpool status $i | grep scrub: | grep "with 0 errors" > /dev/null 2>&1
56 # The scrub found errors
57 /sbin/zpool status $i | /usr/bin/mailx -s "zpool scrub $i found errors" $mailto
60 # Power off the EXT drive
62 /usr/local/etc/bin/ext-drive-power off >> /dev/null