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	"@(#)redundancy_003_pos.ksh	1.4	07/06/05 SMI"
30#
31
32. $STF_SUITE/tests/redundancy/redundancy.kshlib
33
34#################################################################################
35#
36# __stc_assertion_start
37#
38# ID: redundancy_003_pos
39#
40# DESCRIPTION:
41#	A mirrored pool can withstand N-1 device are failing or missing.
42#
43# STRATEGY:
44#	1. Create N(>2,<5) virtual disk files.
45#	2. Create mirror pool based on the virtual disk files.
46#	3. Fill the filesystem with directories and files.
47#	4. Record all the files and directories checksum information.
48#	5. Damaged at most N-1 of the virtual disk files.
49#	6. Verify the data are correct to prove mirror can withstand N-1 devices
50#	   are failing.
51#
52# TESTABILITY: explicit
53#
54# TEST_AUTOMATION_LEVEL: automated
55#
56# CODING_STATUS: COMPLETED (2006-08-21)
57#
58# __stc_assertion_end
59#
60################################################################################
61
62verify_runnable "global"
63
64log_assert "Verify mirrored pool can withstand N-1 devices are failing or missing."
65log_onexit cleanup
66
67for cnt in 3 2; do
68	typeset -i i=1
69
70	setup_test_env $TESTPOOL mirror $cnt
71
72	#
73	# Inject data corruption errors for mirrored pool
74	#
75	while (( i < cnt )); do
76		damage_devs $TESTPOOL $i "label"
77		log_must is_data_valid $TESTPOOL
78		log_must clear_errors $TESTPOOL
79
80		(( i +=1 ))
81	done
82
83	#
84	# Inject  bad devices errors for mirrored pool
85	#
86	i=1
87	while (( i < cnt )); do
88		damage_devs $TESTPOOL $i
89		log_must is_data_valid $TESTPOOL
90		log_must recover_bad_missing_devs $TESTPOOL $i
91
92		(( i +=1 ))
93	done
94
95	#
96	# Inject missing device errors for mirrored pool
97	#
98	i=1
99	while (( i < cnt )); do
100		remove_devs $TESTPOOL $i
101		log_must is_data_valid $TESTPOOL
102		log_must recover_bad_missing_devs $TESTPOOL $i
103
104		(( i +=1 ))
105	done
106done
107
108log_pass "Mirrored pool can withstand N-1 devices failing as expected."
109