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