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#
27# ident	"@(#)zpool_import_missing_003_pos.ksh	1.4	07/10/09 SMI"
28#
29. $STF_SUITE/include/libtest.kshlib
30. $STF_SUITE/tests/cli_root/zfs_mount/zfs_mount.kshlib
31
32################################################################################
33#
34# __stc_assertion_start
35#
36# ID: zpool_import_missing_003_pos
37#
38# DESCRIPTION:
39# 	Once a pool has been exported, but one or more devices are
40#	overlapped with other exported pool, import should handle
41#	this kind of situation properly.
42#
43# STRATEGY:
44#	1. Repeat 1-3, create two test pools upon device files separately.
45#	   These two pools should have one or more devices are overlapped.
46#	   using the various combinations.
47#		- Regular pool
48#		- Mirror
49#		- Raidz
50#	2. Create necessary filesystem and test files.
51#	3. Export the test pool.
52#	4. Verify 'zpool import -d' with these two pools will have results
53#	   as described:
54#		- Regular, report error while any number of devices failing.
55#		- Mirror could withstand (N-1) devices failing
56#		  before data integrity is compromised
57#		- Raidz could withstand one devices failing
58#		  before data integrity is compromised
59#
60# TESTABILITY: explicit
61#
62# TEST_AUTOMATION_LEVEL: automated
63#
64# CODING_STATUS: COMPLETED (2005-08-10)
65#
66# __stc_assertion_end
67#
68################################################################################
69
70verify_runnable "global"
71
72set -A vdevs "" "mirror" "raidz"
73
74function verify
75{
76	typeset pool=$1
77	typeset fs=$2
78	typeset mtpt=$3
79	typeset health=$4
80	typeset file=$5
81	typeset checksum1=$6
82
83	typeset myhealth
84	typeset mymtpt
85	typeset checksum2
86
87	log_must poolexists $pool
88
89	myhealth=$($ZPOOL list -H -o health $pool)
90
91	[[ $myhealth == $health ]] || \
92		log_fail "$pool: Incorrect health ($myhealth), " \
93			"expected ($health)."
94
95	log_must ismounted $pool/$fs
96
97	mymtpt=$(get_prop mountpoint $pool/$fs)
98	[[ $mymtpt == $mtpt ]] || \
99		log_fail "$pool/$fs: Incorrect mountpoint ($mymtpt), " \
100			"expected ($mtpt)."
101
102	[[ ! -e $mtpt/$file ]] && \
103		log_fail "$mtpt/$file missing after import."
104
105	checksum2=$($SUM $mymtpt/$file | $AWK '{print $1}')
106	[[ "$checksum1" != "$checksum2" ]] && \
107		log_fail "Checksums differ ($checksum1 != $checksum2)"
108
109	return 0
110
111}
112
113function cleanup
114{
115	cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
116
117	for pool in $TESTPOOL1 $TESTPOOL2; do
118		if poolexists "$pool" ; then
119			cleanup_filesystem $pool $TESTFS
120			destroy_pool $pool
121		fi
122	done
123
124	[[ -e $DEVICE_ARCHIVE ]] && log_must $TAR xf $DEVICE_ARCHIVE
125}
126
127function cleanup_all
128{
129	cleanup
130
131	# recover dev files
132	typeset i=0
133	while (( i < $MAX_NUM )); do
134		log_must create_vdevs ${DEVICE_DIR}/${DEVICE_FILE}$i
135		((i += 1))
136	done
137
138	log_must $RM -f $DEVICE_ARCHIVE
139	cd $CWD || log_fail "Unable change directory to $CWD"
140
141}
142
143log_onexit cleanup_all
144
145log_assert "Verify that import could handle device overlapped."
146
147CWD=$PWD
148
149cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
150log_must $TAR cf $DEVICE_ARCHIVE ${DEVICE_FILE}*
151
152checksum1=$($SUM $MYTESTFILE | $AWK '{print $1}')
153
154typeset -i i=0
155typeset -i j=0
156typeset -i count=0
157typeset -i num=0
158typeset vdev1=""
159typeset vdev2=""
160typeset action
161
162while (( num < $GROUP_NUM )); do
163	vdev1="$vdev1 ${DEVICE_DIR}/${DEVICE_FILE}$num"
164	(( num = num + 1 ))
165done
166
167while (( i < ${#vdevs[*]} )); do
168	j=0
169	while (( j < ${#vdevs[*]} )); do
170
171		(( j != 0 )) && \
172			log_must $TAR xf $DEVICE_ARCHIVE
173
174		typeset -i overlap=1
175		typeset -i begin
176		typeset -i end
177
178		while (( overlap <= $GROUP_NUM )); do
179			vdev2=""
180			(( begin = $GROUP_NUM - overlap ))
181			(( end = 2 * $GROUP_NUM - overlap - 1 ))
182			(( num = begin ))
183			while (( num <= end )); do
184				vdev2="$vdev2 ${DEVICE_DIR}/${DEVICE_FILE}$num"
185				(( num = num + 1 ))
186			done
187
188			setup_filesystem "$vdev1" $TESTPOOL1 $TESTFS $TESTDIR1 \
189				"" ${vdevs[i]}
190			log_must $CP $MYTESTFILE $TESTDIR1/$TESTFILE0
191			log_must $ZFS umount $TESTDIR1
192			poolexists $TESTPOOL1 && \
193				log_must $ZPOOL export $TESTPOOL1
194
195			setup_filesystem "$vdev2" $TESTPOOL2 $TESTFS $TESTDIR2 \
196				"" ${vdevs[j]}
197			log_must $CP $MYTESTFILE $TESTDIR2/$TESTFILE0
198			log_must $ZFS umount $TESTDIR2
199			poolexists $TESTPOOL2 && \
200				log_must $ZPOOL export $TESTPOOL2
201
202			action=log_must
203			case "${vdevs[i]}" in
204				'mirror') (( overlap == $GROUP_NUM )) && \
205					action=log_mustnot
206					;;
207				'raidz')  (( overlap > 1 )) && \
208					action=log_mustnot
209               			        ;;
210				'')  action=log_mustnot
211					;;
212			esac
213
214			$action $ZPOOL import -d $DEVICE_DIR $TESTPOOL1
215			log_must $ZPOOL import -d $DEVICE_DIR $TESTPOOL2
216
217			if [[ $action == log_must ]]; then
218				verify "$TESTPOOL1" "$TESTFS" "$TESTDIR1" \
219					"DEGRADED" "$TESTFILE0" "$checksum1"
220			fi
221
222			verify "$TESTPOOL2" "$TESTFS" "$TESTDIR2" \
223				"ONLINE" "$TESTFILE0" "$checksum1"
224
225			cleanup
226
227			(( overlap = overlap + 1 ))
228
229		done
230
231		((j = j + 1))
232	done
233
234	((i = i + 1))
235done
236
237log_pass "Import could handle device overlapped."
238