zfs/tests/zfs-tests/tests/functional/clean_mirror/clean_mirror_common.kshlib

   1 #
   2 # CDDL HEADER START
   3 #
   4 # The contents of this file are subject to the terms of the
   5 # Common Development and Distribution License (the "License").
   6 # You may not use this file except in compliance with the License.
   7 #
   8 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9 # or http://www.opensolaris.org/os/licensing.
  10 # See the License for the specific language governing permissions
  11 # and limitations under the License.
  12 #
  13 # When distributing Covered Code, include this CDDL HEADER in each
  14 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15 # If applicable, add the following below this CDDL HEADER, with the
  16 # fields enclosed by brackets "[]" replaced with your own identifying
  17 # information: Portions Copyright [yyyy] [name of copyright owner]
  18 #
  19 # CDDL HEADER END
  20 #
  21
  22 #
  23 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26
  27 #
  28 # Copyright (c) 2013, 2015 by Delphix. All rights reserved.
  29 #
  30
  31 . $STF_SUITE/tests/functional/clean_mirror/default.cfg
  32
  33 # Most of the code related to the clearing of mirrors is duplicated in all
  34 # the test cases below this directory, barring a few minor changes
  35 # involving the device to be affected and the 'object' to use to mangle
  36 # the contents of the mirror.
  37 # This code is sourced into each of these test cases.
  38
  39 #
  40 # Synchronize all the data in pool
  41 #
  42 # $1 pool name
  43 #
  44 function sync_pool #pool
  45 {
  46         typeset pool=$1
  47
  48         log_must $SYNC
  49         log_must $SLEEP 2
  50         # Flush all the pool data.
  51         typeset -i ret
  52         $ZPOOL scrub $pool >/dev/null 2>&1
  53         ret=$?
  54         (( $ret != 0 )) && \
  55                 log_fail "$ZPOOL scrub $pool failed."
  56
  57         while ! is_pool_scrubbed $pool; do
  58                 if is_pool_resilvered $pool ; then
  59                         log_fail "$pool should not be resilver completed."
  60                 fi
  61                 log_must $SLEEP 2
  62         done
  63 }
  64
  65 function overwrite_verify_mirror
  66 {
  67         typeset AFFECTED_DEVICE=$1
  68         typeset OVERWRITING_DEVICE=$2
  69
  70         typeset atfile=0
  71         set -A files
  72         set -A cksums
  73         set -A newcksums
  74
  75         while (( atfile < FILE_COUNT )); do
  76                 files[$atfile]=$TESTDIR/file.$atfile
  77                 log_must $FILE_WRITE -o create -f $TESTDIR/file.$atfile \
  78                         -b $FILE_SIZE -c 1
  79                 cksums[$atfile]=$($CKSUM ${files[$atfile]})
  80                 (( atfile = atfile + 1 ))
  81         done
  82
  83         # dd the primary side of the mirror
  84         log_must $DD if=$OVERWRITING_DEVICE of=$AFFECTED_DEVICE \
  85                 seek=8 bs=$DD_BLOCK count=$(( DD_COUNT - 128 )) conv=notrunc
  86
  87         atfile=0
  88
  89         #
  90         # Flush out the cache so that we ensure we're reading from disk.
  91         #
  92         log_must $ZPOOL export $TESTPOOL
  93         log_must $ZPOOL import $TESTPOOL
  94
  95         typeset -i failedcount=0
  96         while (( atfile < FILE_COUNT )); do
  97                 files[$atfile]=$TESTDIR/file.$atfile
  98                 newcksum=$($CKSUM ${files[$atfile]})
  99                 if [[ $newcksum != ${cksums[$atfile]} ]]; then
 100                         (( failedcount = failedcount + 1 ))
 101                 fi
 102                 $RM -f ${files[$atfile]}
 103                 (( atfile = atfile + 1 ))
 104         done
 105
 106         if (( $failedcount > 0 )); then
 107                 log_fail "of the $FILE_COUNT files $failedcount did not " \
 108                     "have the same checksum before and after."
 109         fi
 110
 111         sync_pool $TESTPOOL
 112 }