tests/zfs-tests/tests/functional/snapshot/clone_001_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 2009 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27
  28 #
  29 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33 . $STF_SUITE/tests/functional/snapshot/snapshot.cfg
  34
  35 #
  36 # DESCRIPTION:
  37 #       Create a snapshot from regular filesystem, volume,
  38 #       or filesystem upon volume, Build a clone file system
  39 #       from the snapshot and verify new files can be written.
  40 #
  41 # STRATEGY:
  42 #       1. Create snapshot use 3 combination:
  43 #               - Regular filesystem
  44 #               - Regular volume
  45 #               - Filesystem upon volume
  46 #       2. Clone a new file system from the snapshot
  47 #       3. Verify the cloned file system is writable
  48 #
  49
  50 verify_runnable "both"
  51
  52 # See issue: https://github.com/zfsonlinux/zfs/issues/6145
  53 if is_linux; then
  54         log_unsupported "Test case occasionally fails"
  55 fi
  56
  57 # Setup array, 4 elements as a group, refer to:
  58 # i+0: name of a snapshot
  59 # i+1: mountpoint of the snapshot
  60 # i+2: clone created from the snapshot
  61 # i+3: mountpoint of the clone
  62
  63 set -A args "$SNAPFS" "$SNAPDIR" "$TESTPOOL/$TESTCLONE" "$TESTDIR.0" \
  64         "$SNAPFS1" "$SNAPDIR3" "$TESTPOOL/$TESTCLONE1" "" \
  65         "$SNAPFS2" "$SNAPDIR2" "$TESTPOOL1/$TESTCLONE2" "$TESTDIR.2"
  66
  67 function setup_all
  68 {
  69         create_pool $TESTPOOL1 ${ZVOL_DEVDIR}/$TESTPOOL/$TESTVOL
  70         log_must zfs create $TESTPOOL1/$TESTFS
  71         log_must zfs set mountpoint=$TESTDIR2 $TESTPOOL1/$TESTFS
  72
  73         return 0
  74 }
  75
  76 function cleanup_all
  77 {
  78         typeset -i i=0
  79
  80         i=0
  81         while (( i < ${#args[*]} )); do
  82                 snapexists ${args[i]} && \
  83                         log_must zfs destroy -Rf ${args[i]}
  84
  85                 [[ -d ${args[i+3]} ]] && \
  86                         log_must rm -rf ${args[i+3]}
  87
  88                 [[ -d ${args[i+1]} ]] && \
  89                         log_must rm -rf ${args[i+1]}
  90
  91                 (( i = i + 4 ))
  92         done
  93
  94         datasetexists $TESTPOOL1/$TESTFS  && \
  95                 log_must zfs destroy -f $TESTPOOL1/$TESTFS
  96
  97         destroy_pool $TESTPOOL1
  98
  99         [[ -d $TESTDIR2 ]] && \
 100                 log_must rm -rf $TESTDIR2
 101
 102         return 0
 103 }
 104
 105 log_assert "Verify a cloned file system is writable."
 106
 107 log_onexit cleanup_all
 108
 109 setup_all
 110
 111 [[ -n $TESTDIR ]] && \
 112     log_must rm -rf $TESTDIR/* > /dev/null 2>&1
 113
 114 typeset -i COUNT=10
 115 typeset -i i=0
 116
 117 for mtpt in $TESTDIR $TESTDIR2 ; do
 118         log_note "Populate the $mtpt directory (prior to snapshot)"
 119         typeset -i j=1
 120         while [[ $j -le $COUNT ]]; do
 121                 log_must file_write -o create -f $mtpt/before_file$j \
 122                         -b $BLOCKSZ -c $NUM_WRITES -d $j
 123
 124                 (( j = j + 1 ))
 125         done
 126 done
 127
 128 while (( i < ${#args[*]} )); do
 129         #
 130         # Take a snapshot of the test file system.
 131         #
 132         log_must zfs snapshot ${args[i]}
 133
 134         #
 135         # Clone a new file system from the snapshot
 136         #
 137         log_must zfs clone ${args[i]} ${args[i+2]}
 138         if [[ -n ${args[i+3]} ]] ; then
 139                 log_must zfs set mountpoint=${args[i+3]} ${args[i+2]}
 140
 141                 FILE_COUNT=`ls -Al ${args[i+3]} | grep -v "total" \
 142                     | grep -v "\.zfs" | wc -l`
 143                 if [[ $FILE_COUNT -ne $COUNT ]]; then
 144                         ls -Al ${args[i+3]}
 145                         log_fail "AFTER: ${args[i+3]} contains $FILE_COUNT files(s)."
 146                 fi
 147
 148                 log_note "Verify the ${args[i+3]} directory is writable"
 149                 j=1
 150                 while [[ $j -le $COUNT ]]; do
 151                         log_must file_write -o create -f ${args[i+3]}/after_file$j \
 152                         -b $BLOCKSZ -c $NUM_WRITES -d $j
 153                         (( j = j + 1 ))
 154                 done
 155
 156                 FILE_COUNT=`ls -Al ${args[i+3]}/after* | grep -v "total" | wc -l`
 157                 if [[ $FILE_COUNT -ne $COUNT ]]; then
 158                         ls -Al ${args[i+3]}
 159                         log_fail "${args[i+3]} contains $FILE_COUNT after* files(s)."
 160                 fi
 161         fi
 162
 163         (( i = i + 4 ))
 164 done
 165
 166 log_pass "The clone file system is writable."