summaryrefslogtreecommitdiff
path: root/test/shell/lvextend-caches-on-thindata.sh
blob: 2000c005e0a0107d7269ff790af5e7098cb55c34 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
#!/usr/bin/env bash

# Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

SKIP_WITH_LVMPOLLD=1

# lvextend thin pool data that has cache|writecache attached

. lib/inittest

do_test()
{
	local tp=$1
	local lvt=$2

	# create some initial data
	lvchange -ay $vg/$lvt
	mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
	mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
	cp pattern "$mount_dir/pattern1"
	dd if=/dev/urandom of="$mount_dir/rand100M" bs=1M count=100 conv=fdatasync
	cp pattern "$mount_dir/pattern2"

	# extend while mounted
	lvextend -L+64M $vg/${tp}_tdata "$dev4"
	lvs -a $vg -o+devices

	# verify initial data
	diff pattern "$mount_dir/pattern1"
	diff pattern "$mount_dir/pattern2"
	dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100

	# add more data
	cp pattern "$mount_dir/pattern3"
	dd if=/dev/urandom of="$mount_dir/rand8M" bs=1M count=8 conv=fdatasync

	# restart the LV
	umount "$mount_dir"
	lvchange -an $vg/$lvt
	lvchange -an $vg/$tp
	lvchange -ay $vg/$lvt
	mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"

	# verify all data
	diff pattern "$mount_dir/pattern1"
	diff pattern "$mount_dir/pattern2"
	diff pattern "$mount_dir/pattern3"
	dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
	dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8

	# extend again while inactive
	umount "$mount_dir"
	lvchange -an $vg/$lvt
	lvchange -an $vg/$tp
	lvextend -L+64M $vg/${tp}_tdata "$dev5"
	lvs -a $vg -o+devices
	lvchange -ay $vg/$lvt
	mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"

	# verify all data
	diff pattern "$mount_dir/pattern1"
	diff pattern "$mount_dir/pattern2"
	diff pattern "$mount_dir/pattern3"
	dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
	dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8

	# add more data
	cp pattern "$mount_dir/pattern4"

	# remove the cache
	lvconvert --splitcache $vg/${tp}_tdata

	# verify all data
	diff pattern "$mount_dir/pattern1"
	diff pattern "$mount_dir/pattern2"
	diff pattern "$mount_dir/pattern3"
	diff pattern "$mount_dir/pattern4"
	dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
	dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8

	umount "$mount_dir"
	lvchange -an $vg/$lvt
	lvchange -an $vg/$tp
	lvchange -ay $vg/$lvt
	mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"

	# verify all data
	diff pattern "$mount_dir/pattern1"
	diff pattern "$mount_dir/pattern2"
	diff pattern "$mount_dir/pattern3"
	diff pattern "$mount_dir/pattern4"
	dd of=/dev/null if="$mount_dir/rand100M" bs=1M count=100
	dd of=/dev/null if="$mount_dir/rand8M" bs=1M count=8

	umount "$mount_dir"
	lvchange -an $vg/$lvt
	lvchange -an $vg/$tp
	lvremove $vg/$lvt
	lvremove $vg/$tp
	lvremove -y $vg
}


aux have_cache 1 10 0 || skip
aux have_writecache 1 0 0 || skip
which mkfs.xfs || skip

mount_dir="mnt"
mkdir -p "$mount_dir"

aux prepare_devs 6 400 # want 400M of usable space from each dev

# Tests with fs block sizes require a libblkid version that shows BLOCK_SIZE
vgcreate $vg "$dev1"
lvcreate -n $lv1 -L300 $vg
mkfs.xfs -f "$DM_DEV_DIR/$vg/$lv1"
blkid -p "$DM_DEV_DIR/$vg/$lv1" | grep BLOCK_SIZE || skip
lvchange -an $vg
vgremove -ff $vg

# generate random data
dd if=/dev/urandom of=pattern bs=512K count=1

vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4" "$dev5" "$dev6"

# test extending cache|writecache on thin pool data
# test type cache|writecache
# cache with cachepool|cachevol
# cache with writeback|writethrough

# lv1 is thinpool LV: 128M
# lv2 is fast LV:      64M
# lv3 is thin LV:       1G

# attach writecache to thinpool data
lvcreate --type thin-pool -n $lv1 -L228M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type writecache --cachevol $lv2 $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3

# attach cache/writeback (cachevol) to thinpool data
lvcreate --type thin-pool -n $lv1 -L228M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3

# attach cache/writethrough (cachevol) to thinpool data
lvcreate --type thin-pool -n $lv1 -L228M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -n $lv2 -L64M -an $vg "$dev3"
lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3

# attach cache (cachepool) to thinpool data
lvcreate --type thin-pool -n $lv1 -L228M --poolmetadataspare n $vg "$dev1" "$dev2"
lvcreate --type thin -n $lv3 -V1G --thinpool $lv1 $vg
lvcreate -y --type cache-pool -n $lv2 -L64M --poolmetadataspare n $vg "$dev3" "$dev6"
lvconvert -y --type cache --cachepool $lv2 --poolmetadataspare n $vg/$lv1
lvs -a $vg -o+devices
do_test $lv1 $lv3

# FIXME: test these thin pool data extensions done by dmeventd

vgremove -f $vg