-#!/bin/bash
-
-# Author: Alan J. Pippin
-# Description: This script will attempt to scrub a given EXT drive
-# This script ensures that only 1 scrub operation is
-# running at any given time. This serializes the zfs
-# scrub process for any pool.
-
-PATH=/usr/sbin:/sbin:/etc/bin:$PATH
-
-pools="backups"
-maxsleeptime=360
-mailto=root
-logfile=/var/log/zfs/zfs-scrub.log
-
-for i in $pools
-do
- # Check to see if any zfs filesystem has a scrub being performed on it now.
- # If it does, we cannot perform more than one scrub operation at a time.
- while true; do
- zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
- if [ $? == 0 ]; then
- # Another zpool scrub operation is already running
- # Wait until it is done before continuing
- ransleep=$(($RANDOM % $maxsleeptime))
- sleep $ransleep
- else
- # Another zpool scrub operation is not running
- break
- fi
- done
-
- date=`date`
- echo "$date: Scrub started for zfs pool $i" >> $logfile
- ext-drive-power on >> /dev/null
- zpool import $i
- zpool scrub $i
-
- # Wait until the scrub completes, and check for any errors
- while true; do
- zpool status $i | grep scrub: | grep "in progress" > /dev/null 2>&1
- if [ $? == 0 ]; then
- # Our zpool scrub operation is still running
- # Wait until it is done before continuing
- ransleep=$(($RANDOM % $maxsleeptime))
- sleep $ransleep
- else
- # Our scrub operation has completed
- break
- fi
- done
-
- date=`date`
- echo "$date: Scrub completed for zfs pool $i" >> $logfile
-
- # Check for any scrub errors
- zpool status $i | grep scrub: | grep "with 0 errors" > /dev/null 2>&1
- if [ $? != 0 ]; then
- # The scrub found errors
- zpool status $i | /usr/bin/mailx -s "zpool scrub $i found errors" $mailto
- fi
-
- # Power off the EXT drive
- zpool export $i
- ext-drive-power off >> /dev/null
-
-done
-