1#!/bin/ksh -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 28# 29# Copyright (c) 2013 by Delphix. All rights reserved. 30# 31 32. $STF_SUITE/include/libtest.shlib 33. $STF_SUITE/tests/functional/redundancy/redundancy.kshlib 34 35# 36# DESCRIPTION: 37# A mirrored pool can withstand N-1 device are failing or missing. 38# 39# STRATEGY: 40# 1. Create N(>2,<5) virtual disk files. 41# 2. Create mirror pool based on the virtual disk files. 42# 3. Fill the filesystem with directories and files. 43# 4. Record all the files and directories checksum information. 44# 5. Damaged at most N-1 of the virtual disk files. 45# 6. Verify the data are correct to prove mirror can withstand N-1 devices 46# are failing. 47# 48 49verify_runnable "global" 50 51log_assert "Verify mirrored pool can withstand N-1 devices are failing or missing." 52log_onexit cleanup 53 54typeset -i cnt=$(random_int_between 2 5) 55setup_test_env $TESTPOOL mirror $cnt 56 57typeset -i i=1 58 59# 60# Inject data corruption errors for mirrored pool 61# 62while (( i < cnt )); do 63 damage_devs $TESTPOOL $i "label" 64 log_must is_data_valid $TESTPOOL 65 log_must clear_errors $TESTPOOL 66 67 (( i +=1 )) 68done 69 70# 71# Inject bad devices errors for mirrored pool 72# 73i=1 74while (( i < cnt )); do 75 damage_devs $TESTPOOL $i 76 log_must is_data_valid $TESTPOOL 77 log_must recover_bad_missing_devs $TESTPOOL $i 78 79 (( i +=1 )) 80done 81 82# 83# Inject missing device errors for mirrored pool 84# 85i=1 86while (( i < cnt )); do 87 remove_devs $TESTPOOL $i 88 log_must is_data_valid $TESTPOOL 89 log_must recover_bad_missing_devs $TESTPOOL $i 90 91 (( i +=1 )) 92done 93 94log_pass "Mirrored pool can withstand N-1 devices failing as expected." 95