1#!/usr/local/bin/ksh93 -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26. $STF_SUITE/include/libtest.kshlib
27. $STF_SUITE/tests/cli_root/zfs_mount/zfs_mount.kshlib
28
29################################################################################
30#
31# __stc_assertion_start
32#
33# ID: zpool_import_missing_003_pos
34#
35# DESCRIPTION:
36# 	Once a pool has been exported, but one or more devices are
37#	overlapped with other exported pool, import should handle
38#	this kind of situation properly.
39#
40# STRATEGY:
41#	1. Repeat 1-3, create two test pools upon device files separately.
42#	   These two pools should have one or more devices are overlapped.
43#	   using the various combinations.
44#		- Regular pool
45#		- Mirror
46#		- Raidz
47#	2. Create necessary filesystem and test files.
48#	3. Export the test pool.
49#	4. Verify 'zpool import -d' with these two pools will have results
50#	   as described:
51#		- Regular, report error while any number of devices failing.
52#		- Mirror could withstand (N-1) devices failing
53#		  before data integrity is compromised
54#		- Raidz could withstand one devices failing
55#		  before data integrity is compromised
56#
57# TESTABILITY: explicit
58#
59# TEST_AUTOMATION_LEVEL: automated
60#
61# CODING_STATUS: COMPLETED (2005-08-10)
62#
63# __stc_assertion_end
64#
65################################################################################
66
67verify_runnable "global"
68
69set -A vdevs "" "mirror" "raidz"
70
71function verify
72{
73	typeset pool=$1
74	typeset fs=$2
75	typeset mtpt=$3
76	typeset health=$4
77	typeset file=$5
78	typeset checksum1=$6
79
80	typeset myhealth
81	typeset mymtpt
82	typeset checksum2
83
84	log_must poolexists $pool
85
86	myhealth=$($ZPOOL list -H -o health $pool)
87
88	[[ $myhealth == $health ]] || \
89		log_fail "$pool: Incorrect health ($myhealth), " \
90			"expected ($health)."
91
92	log_must ismounted $pool/$fs
93
94	mymtpt=$(get_prop mountpoint $pool/$fs)
95	[[ $mymtpt == $mtpt ]] || \
96		log_fail "$pool/$fs: Incorrect mountpoint ($mymtpt), " \
97			"expected ($mtpt)."
98
99	[[ ! -e $mtpt/$file ]] && \
100		log_fail "$mtpt/$file missing after import."
101
102	checksum2=$($SUM $mymtpt/$file | $AWK '{print $1}')
103	[[ "$checksum1" != "$checksum2" ]] && \
104		log_fail "Checksums differ ($checksum1 != $checksum2)"
105
106	return 0
107
108}
109
110function cleanup
111{
112	cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
113
114	for pool in $TESTPOOL1 $TESTPOOL2; do
115		if poolexists "$pool" ; then
116			cleanup_filesystem $pool $TESTFS
117			destroy_pool $pool
118		fi
119	done
120
121	[[ -e $DEVICE_ARCHIVE ]] && log_must $TAR xf $DEVICE_ARCHIVE
122}
123
124function cleanup_all
125{
126	cleanup
127
128	# recover dev files
129	typeset i=0
130	while (( i < $MAX_NUM )); do
131		log_must create_vdevs ${DEVICE_DIR}/${DEVICE_FILE}$i
132		((i += 1))
133	done
134
135	log_must $RM -f $DEVICE_ARCHIVE
136	cd $CWD || log_fail "Unable change directory to $CWD"
137
138}
139
140log_onexit cleanup_all
141
142log_assert "Verify that import could handle device overlapped."
143
144CWD=$PWD
145
146cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
147log_must $TAR cf $DEVICE_ARCHIVE ${DEVICE_FILE}*
148
149checksum1=$($SUM $MYTESTFILE | $AWK '{print $1}')
150
151typeset -i i=0
152typeset -i j=0
153typeset -i count=0
154typeset -i num=0
155typeset vdev1=""
156typeset vdev2=""
157typeset action
158
159while (( num < $GROUP_NUM )); do
160	vdev1="$vdev1 ${DEVICE_DIR}/${DEVICE_FILE}$num"
161	(( num = num + 1 ))
162done
163
164while (( i < ${#vdevs[*]} )); do
165	j=0
166	while (( j < ${#vdevs[*]} )); do
167
168		(( j != 0 )) && \
169			log_must $TAR xf $DEVICE_ARCHIVE
170
171		typeset -i overlap=1
172		typeset -i begin
173		typeset -i end
174
175		while (( overlap <= $GROUP_NUM )); do
176			vdev2=""
177			(( begin = $GROUP_NUM - overlap ))
178			(( end = 2 * $GROUP_NUM - overlap - 1 ))
179			(( num = begin ))
180			while (( num <= end )); do
181				vdev2="$vdev2 ${DEVICE_DIR}/${DEVICE_FILE}$num"
182				(( num = num + 1 ))
183			done
184
185			setup_filesystem "$vdev1" $TESTPOOL1 $TESTFS $TESTDIR1 \
186				"" ${vdevs[i]}
187			log_must $CP $MYTESTFILE $TESTDIR1/$TESTFILE0
188			log_must $ZFS umount $TESTDIR1
189			poolexists $TESTPOOL1 && \
190				log_must $ZPOOL export $TESTPOOL1
191
192			setup_filesystem "$vdev2" $TESTPOOL2 $TESTFS $TESTDIR2 \
193				"" ${vdevs[j]}
194			log_must $CP $MYTESTFILE $TESTDIR2/$TESTFILE0
195			log_must $ZFS umount $TESTDIR2
196			poolexists $TESTPOOL2 && \
197				log_must $ZPOOL export $TESTPOOL2
198
199			action=log_must
200			case "${vdevs[i]}" in
201				'mirror') (( overlap == $GROUP_NUM )) && \
202					action=log_mustnot
203					;;
204				'raidz')  (( overlap > 1 )) && \
205					action=log_mustnot
206               			        ;;
207				'')  action=log_mustnot
208					;;
209			esac
210
211			$action $ZPOOL import -d $DEVICE_DIR $TESTPOOL1
212			log_must $ZPOOL import -d $DEVICE_DIR $TESTPOOL2
213
214			if [[ $action == log_must ]]; then
215				verify "$TESTPOOL1" "$TESTFS" "$TESTDIR1" \
216					"DEGRADED" "$TESTFILE0" "$checksum1"
217			fi
218
219			verify "$TESTPOOL2" "$TESTFS" "$TESTDIR2" \
220				"ONLINE" "$TESTFILE0" "$checksum1"
221
222			cleanup
223
224			(( overlap = overlap + 1 ))
225
226		done
227
228		((j = j + 1))
229	done
230
231	((i = i + 1))
232done
233
234log_pass "Import could handle device overlapped."
235