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# $FreeBSD$
24
25#
26# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)zpool_import_missing_003_pos.ksh	1.4	07/10/09 SMI"
30#
31. $STF_SUITE/include/libtest.kshlib
32. $STF_SUITE/tests/cli_root/zfs_mount/zfs_mount.kshlib
33
34################################################################################
35#
36# __stc_assertion_start
37#
38# ID: zpool_import_missing_003_pos
39#
40# DESCRIPTION:
41# 	Once a pool has been exported, but one or more devices are
42#	overlapped with other exported pool, import should handle
43#	this kind of situation properly.
44#
45# STRATEGY:
46#	1. Repeat 1-3, create two test pools upon device files separately.
47#	   These two pools should have one or more devices are overlapped.
48#	   using the various combinations.
49#		- Regular pool
50#		- Mirror
51#		- Raidz
52#	2. Create necessary filesystem and test files.
53#	3. Export the test pool.
54#	4. Verify 'zpool import -d' with these two pools will have results
55#	   as described:
56#		- Regular, report error while any number of devices failing.
57#		- Mirror could withstand (N-1) devices failing
58#		  before data integrity is compromised
59#		- Raidz could withstand one devices failing
60#		  before data integrity is compromised
61#
62# TESTABILITY: explicit
63#
64# TEST_AUTOMATION_LEVEL: automated
65#
66# CODING_STATUS: COMPLETED (2005-08-10)
67#
68# __stc_assertion_end
69#
70################################################################################
71
72verify_runnable "global"
73
74set -A vdevs "" "mirror" "raidz"
75
76function verify
77{
78	typeset pool=$1
79	typeset fs=$2
80	typeset mtpt=$3
81	typeset health=$4
82	typeset file=$5
83	typeset checksum1=$6
84
85	typeset myhealth
86	typeset mymtpt
87	typeset checksum2
88
89	log_must poolexists $pool
90
91	myhealth=$($ZPOOL list -H -o health $pool)
92
93	[[ $myhealth == $health ]] || \
94		log_fail "$pool: Incorrect health ($myhealth), " \
95			"expected ($health)."
96
97	log_must ismounted $pool/$fs
98
99	mymtpt=$(get_prop mountpoint $pool/$fs)
100	[[ $mymtpt == $mtpt ]] || \
101		log_fail "$pool/$fs: Incorrect mountpoint ($mymtpt), " \
102			"expected ($mtpt)."
103
104	[[ ! -e $mtpt/$file ]] && \
105		log_fail "$mtpt/$file missing after import."
106
107	checksum2=$($SUM $mymtpt/$file | $AWK '{print $1}')
108	[[ "$checksum1" != "$checksum2" ]] && \
109		log_fail "Checksums differ ($checksum1 != $checksum2)"
110
111	return 0
112
113}
114
115function cleanup
116{
117	cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
118
119	for pool in $TESTPOOL1 $TESTPOOL2; do
120		if poolexists "$pool" ; then
121			cleanup_filesystem $pool $TESTFS
122			destroy_pool $pool
123		fi
124	done
125
126	[[ -e $DEVICE_ARCHIVE ]] && log_must $TAR xf $DEVICE_ARCHIVE
127}
128
129function cleanup_all
130{
131	cleanup
132
133	# recover dev files
134	typeset i=0
135	while (( i < $MAX_NUM )); do
136		log_must create_vdevs ${DEVICE_DIR}/${DEVICE_FILE}$i
137		((i += 1))
138	done
139
140	log_must $RM -f $DEVICE_ARCHIVE
141	cd $CWD || log_fail "Unable change directory to $CWD"
142
143}
144
145log_onexit cleanup_all
146
147log_assert "Verify that import could handle device overlapped."
148
149CWD=$PWD
150
151cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
152log_must $TAR cf $DEVICE_ARCHIVE ${DEVICE_FILE}*
153
154checksum1=$($SUM $MYTESTFILE | $AWK '{print $1}')
155
156typeset -i i=0
157typeset -i j=0
158typeset -i count=0
159typeset -i num=0
160typeset vdev1=""
161typeset vdev2=""
162typeset action
163
164while (( num < $GROUP_NUM )); do
165	vdev1="$vdev1 ${DEVICE_DIR}/${DEVICE_FILE}$num"
166	(( num = num + 1 ))
167done
168
169while (( i < ${#vdevs[*]} )); do
170	j=0
171	while (( j < ${#vdevs[*]} )); do
172
173		(( j != 0 )) && \
174			log_must $TAR xf $DEVICE_ARCHIVE
175
176		typeset -i overlap=1
177		typeset -i begin
178		typeset -i end
179
180		while (( overlap <= $GROUP_NUM )); do
181			vdev2=""
182			(( begin = $GROUP_NUM - overlap ))
183			(( end = 2 * $GROUP_NUM - overlap - 1 ))
184			(( num = begin ))
185			while (( num <= end )); do
186				vdev2="$vdev2 ${DEVICE_DIR}/${DEVICE_FILE}$num"
187				(( num = num + 1 ))
188			done
189
190			setup_filesystem "$vdev1" $TESTPOOL1 $TESTFS $TESTDIR1 \
191				"" ${vdevs[i]}
192			log_must $CP $MYTESTFILE $TESTDIR1/$TESTFILE0
193			log_must $ZFS umount $TESTDIR1
194			poolexists $TESTPOOL1 && \
195				log_must $ZPOOL export $TESTPOOL1
196
197			setup_filesystem "$vdev2" $TESTPOOL2 $TESTFS $TESTDIR2 \
198				"" ${vdevs[j]}
199			log_must $CP $MYTESTFILE $TESTDIR2/$TESTFILE0
200			log_must $ZFS umount $TESTDIR2
201			poolexists $TESTPOOL2 && \
202				log_must $ZPOOL export $TESTPOOL2
203
204			action=log_must
205			case "${vdevs[i]}" in
206				'mirror') (( overlap == $GROUP_NUM )) && \
207					action=log_mustnot
208					;;
209				'raidz')  (( overlap > 1 )) && \
210					action=log_mustnot
211               			        ;;
212				'')  action=log_mustnot
213					;;
214			esac
215
216			$action $ZPOOL import -d $DEVICE_DIR $TESTPOOL1
217			log_must $ZPOOL import -d $DEVICE_DIR $TESTPOOL2
218
219			if [[ $action == log_must ]]; then
220				verify "$TESTPOOL1" "$TESTFS" "$TESTDIR1" \
221					"DEGRADED" "$TESTFILE0" "$checksum1"
222			fi
223
224			verify "$TESTPOOL2" "$TESTFS" "$TESTDIR2" \
225				"ONLINE" "$TESTFILE0" "$checksum1"
226
227			cleanup
228
229			(( overlap = overlap + 1 ))
230
231		done
232
233		((j = j + 1))
234	done
235
236	((i = i + 1))
237done
238
239log_pass "Import could handle device overlapped."
240