#!/bin/bash
# Author: Alan J. Pippin
-# Description: This script will attempt to scrub each zfs pool
-# given to it in the for loop. This script ensures
-# That only 1 scrub operation is running at any given time.
-# This serializes the zfs scrub process for each pool.
+# Description: This script will attempt to scrub a given pool.
+# 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:$PATH
+exec >> /var/log/zfs/zfs-scrub.log 2>&1
+PATH=/usr/sbin:/sbin:/etc/bin:$PATH
+
+pools="$*"
maxsleeptime=360
-logfile=/var/log/zfs/zfs-scrub.log
+mailto=root
+
+if [ -z "$pools" ]; then
+ echo "-E- Usage: $0 <pools>"
+ exit 1
+fi
-for i in tank storage
+for i in $pools
do
- # Check to see if this zfs filesystem has a scrub being performed on it now.
+ # Check to see if any zfs filesystem has a scrub being performed on it now.
# If it does, we cannot perform more than one scrub operation at a time.
while true; do
zpool status | grep scrub: | grep "in progress" > /dev/null 2>&1
done
date=`date`
- echo "$date: Scrub started for zfs pool $i" >> $logfile
+ echo "$date: Scrub started for zfs pool $i"
zpool scrub $i
- sleep 60
+
+ # 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"
+
+ # 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
done
+
+