camcontrol device spindown/spinup scripts for zpools

[kfoda]

Modify as you see fit, may be of interest for people looking to save power by spinning down the drives for a zpool when not is use. Also see http://forums.servethehome.com/showthread.php?36-FreeBSD-vault thread :

===================
#!/usr/local/bin/bash

#
# zpool-spindown.sh
# spindown ada/da camcontrol disks for a zpool
# usage: zpool-spindown.sh poolname

ZPOOL="$1"

if [ -z "$ZPOOL" ]
then
echo "zpool name required"
exit 2
fi

PATH=/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/local/sbin:/bin:/sbin
export PATH

# Cleanup any tmp file if present
if [ -f /tmp/zpool.iostat ]
then
rm -f /tmp/zpool.iostat
fi

# Name of samba share to check if mounted
SMBSHARE="media"

# Get drives for pool
drives=`zpool status $ZPOOL | egrep "da[0123456789]" | awk '{print $1}' | tr '\n' ' '`
firstdrive=`echo "$drives" | awk '{print $1}'`

# Activity checks
smbactive=`smbstatus -S | grep -A 6 "Connected at" | grep $SMBSHARE | wc -l | awk '{print $NF}'`
scrubrunning=`zpool status $ZPOOL | egrep "scrub in progress|resilver in progress" | wc -l | awk '{print $NF}'`
spundown=`smartctl -n standby -H /dev/$firstdrive | tail -1 | grep "STANDBY" | wc -l | awk '{print $NF}'`

# modify /etc/periodic/weekly/310.locate to touch /tmp/locate.running and remove when finished
#
if [ -f /tmp/locate.running ]
then
echo "Locate running...Aborting spindown!"
exit 3
elif [ $smbactive -gt 0 ]
then
echo "Samba share is mounted...Aborting spindown"
exit 3
elif [ $scrubrunning -eq 1 ]
then
echo "Scrub/resilver is running...Aborting spindown"
exit 3
elif [ $spundown -eq 1 ]
then
echo "Spundown already...Aborting spindown"
exit 3
fi

# Longer IO Activity check - only perform if got past above
zpool iostat $ZPOOL 30 2 | tail -1 > /tmp/zpool.iostat
reading=`cat /tmp/zpool.iostat | awk '{print $(NF-1)}' | awk -F\. '{print $1}' | sed -e 's/K//g' | sed -e 's/M//g'`
writing=`cat /tmp/zpool.iostat | awk '{print $NF}' | awk -F\. '{print $1}' | sed -e 's/K//g' | sed -e 's/M//g'`
rm -f /tmp/zpool.iostat

if [ $reading -gt 0 ]
then
echo "Pool shows IO activity...Aborting spindown"
exit 3
elif [ $writing -gt 0 ]
then
echo "Pool shows IO activity...Aborting spindown"
exit 3
fi

drives=($drives)
type=""

driveop () {
drive=$1
# Need to issue differnt command to ada vs da devices!!!
type=`echo $drive | cut -c 1`
if [ $type = "d" ]
then
camcontrol stop $drive
elif [ $type = "a" ]
then
camcontrol standby $drive
fi
return
}

drives_count=${#drives[@]}
index=0

while [ "$index" -lt "$drives_count" ]
do
driveop ${drives[$index]}
printf "Spindown Drive %s\n" ${drives[$index]}
let "index = $index + 1"
done
=================

=================
#!/usr/local/bin/bash

#
# zpool-spinup.sh
# spinup ada/da camcontrol disks for a zpool
# usage: zpool-spinup.sh poolname

ZPOOL="$1"

if [ -z "$ZPOOL" ]
then
echo "zpool name required"
exit 2
fi

PATH=/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/local/sbin:/bin:/sbin
export PATH

# Get drives for pool
drives=`zpool status $ZPOOL | egrep "da[0123456789]" | awk '{print $1}' | tr '\n' ' '`
firstdrive=`echo "$drives" | awk '{print $1}'`

# Check if already spun down
spundown=`smartctl -n standby -H /dev/$firstdrive | tail -1 | grep "STANDBY" | wc -l | awk '{print $NF}'`

if [ $spundown -eq 0 ]
then
echo "Pool $ZPOOL aready spun up"
exit 3
fi

drives=($drives)

type=""

driveop () {
drive=$1
type=`echo $drive | cut -c 1`
if [ $type = "d" ]
then
camcontrol start $drive
elif [ $type = "a" ]
then
camcontrol idle $drive
fi
return
}

drives_count=${#drives[@]}
index=0

while [ "$index" -lt "$drives_count" ]
do
driveop ${drives[$index]}
printf "SpinUp Drive %s\n" ${drives[$index]}
let "index = $index + 1"
done
================

 

[Yann]

Hello kfoda, signed up to say thank you. I am running this script with very few patches, it does exactly what I needed, and you saved me several hours of work. Thanks a lot!