usr/src/test/zfs-tests/tests/functional/redundancy/redundancy_003_pos.ksh

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