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