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. $STF_SUITE/tests/redundancy/redundancy.kshlib
28
29#################################################################################
30#
31# __stc_assertion_start
32#
33# ID: redundancy_003_pos
34#
35# DESCRIPTION:
36#	A mirrored pool can withstand N-1 device are failing or missing.
37#
38# STRATEGY:
39#	1. Create N(>2,<5) virtual disk files.
40#	2. Create mirror pool based on the virtual disk files.
41#	3. Fill the filesystem with directories and files.
42#	4. Record all the files and directories checksum information.
43#	5. Damaged at most N-1 of the virtual disk files.
44#	6. Verify the data are correct to prove mirror can withstand N-1 devices
45#	   are failing.
46#
47# TESTABILITY: explicit
48#
49# TEST_AUTOMATION_LEVEL: automated
50#
51# CODING_STATUS: COMPLETED (2006-08-21)
52#
53# __stc_assertion_end
54#
55################################################################################
56
57verify_runnable "global"
58
59log_assert "Verify mirrored pool can withstand N-1 devices are failing or missing."
60log_onexit cleanup
61
62for cnt in 3 2; do
63	typeset -i i=1
64
65	setup_test_env $TESTPOOL mirror $cnt
66
67	#
68	# Inject data corruption errors for mirrored pool
69	#
70	while (( i < cnt )); do
71		damage_devs $TESTPOOL $i "label"
72		log_must is_data_valid $TESTPOOL
73		log_must clear_errors $TESTPOOL
74
75		(( i +=1 ))
76	done
77
78	#
79	# Inject  bad devices errors for mirrored pool
80	#
81	i=1
82	while (( i < cnt )); do
83		damage_devs $TESTPOOL $i
84		log_must is_data_valid $TESTPOOL
85		log_must recover_bad_missing_devs $TESTPOOL $i
86
87		(( i +=1 ))
88	done
89
90	#
91	# Inject missing device errors for mirrored pool
92	#
93	i=1
94	while (( i < cnt )); do
95		remove_devs $TESTPOOL $i
96		log_must is_data_valid $TESTPOOL
97		log_must recover_bad_missing_devs $TESTPOOL $i
98
99		(( i +=1 ))
100	done
101done
102
103log_pass "Mirrored pool can withstand N-1 devices failing as expected."
104