recepies/ganeti/restore-to-zfs-vol.sh

#!/bin/sh -e 

pool=workshop

instance=koha.ffzg.hr
size=60G
instance=prod.vbz.ffzg.hr
instance=bookreader.rot13.org

if [ -z "$1" ] ; then
        zfs list -r $pool/block
        echo
        test -e "/mnt/*" && df -h /mnt/* | grep -v aufs
        echo
        du -hcs /$pool/ganeti/export/* | cut -d/ -f1,5
        exit 1
else
        instance=$1
fi

umount /mnt/$instance || true
zfs destroy $pool/block/$instance || true

zfs create -V $size -b 4k -s $pool/block/$instance

test -d /mnt/$instance || mkdir /mnt/$instance

wait_for() {
        echo -n "waiting for $1 " 
        while [ ! -e $1 ] ; do
                echo -n .
                sleep 1
        done
        echo " found"
}

wait_for /dev/zvol/$pool/block/$instance

label=`echo $instance | cut -d. -f1`
echo "label $label = $instance"

time mkfs.ext4 -m 0 -L $label /dev/zvol/$pool/block/$instance 

wait_for /dev/disk/by-label/$label

mount /dev/disk/by-label/$label /mnt/$instance/
cd /mnt/$instance/
dump=`ls /$pool/ganeti/export/$instance/*.disk0*.snap`
ls -alh $dump
zpool iostat 2 | tee /dev/shm/$instance &
pid_iostat=$!
( while true; do zfs list $pool/block/$instance ; sleep 10 ; done ) &
pid_list=$! 
time restore rf $dump
kill $pid_iostat
kill $pid_list

wc -l /dev/shm/$instance
df -h /mnt/$instance
1	#!/bin/sh -e
2
3	pool=workshop
4
5	instance=koha.ffzg.hr
6	size=60G
7	instance=prod.vbz.ffzg.hr
8	instance=bookreader.rot13.org
9
10	if [ -z "$1" ] ; then
11	zfs list -r $pool/block
12	echo
13	test -e "/mnt/" && df -h /mnt/ \| grep -v aufs
14	echo
15	du -hcs /$pool/ganeti/export/* \| cut -d/ -f1,5
16	exit 1
17	else
18	instance=$1
19	fi
20
21	umount /mnt/$instance \|\| true
22	zfs destroy $pool/block/$instance \|\| true
23
24	zfs create -V $size -b 4k -s $pool/block/$instance
25
26	test -d /mnt/$instance \|\| mkdir /mnt/$instance
27
28	wait_for() {
29	echo -n "waiting for $1 "
30	while [ ! -e $1 ] ; do
31	echo -n .
32	sleep 1
33	done
34	echo " found"
35	}
36
37	wait_for /dev/zvol/$pool/block/$instance
38
39	label=`echo $instance \| cut -d. -f1`
40	echo "label $label = $instance"
41
42	time mkfs.ext4 -m 0 -L $label /dev/zvol/$pool/block/$instance
43
44	wait_for /dev/disk/by-label/$label
45
46	mount /dev/disk/by-label/$label /mnt/$instance/
47	cd /mnt/$instance/
48	dump=`ls /$pool/ganeti/export/$instance/.disk0.snap`
49	ls -alh $dump
50	zpool iostat 2 \| tee /dev/shm/$instance &
51	pid_iostat=$!
52	( while true; do zfs list $pool/block/$instance ; sleep 10 ; done ) &
53	pid_list=$!
54	time restore rf $dump
55	kill $pid_iostat
56	kill $pid_list
57
58	wc -l /dev/shm/$instance
59	df -h /mnt/$instance