usr/src/test/zfs-tests/tests/functional/cli_root/zfs_send/zfs_send_007_pos.ksh

   1 #!/bin/ksh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # This file and its contents are supplied under the terms of the
   6 # Common Development and Distribution License ("CDDL"), version 1.0.
   7 # You may only use this file in accordance with the terms of version
   8 # 1.0 of the CDDL.
   9 #
  10 # A full copy of the text of the CDDL should have accompanied this
  11 # source.  A copy of the CDDL is also available via the Internet at
  12 # http://www.illumos.org/license/CDDL.
  13 #
  14 # CDDL HEADER END
  15 #
  16
  17 #
  18 # Copyright (c) 2015, 2016 by Delphix. All rights reserved.
  19 #
  20
  21 . $STF_SUITE/include/libtest.shlib
  22 #
  23 # DESCRIPTION:
  24 #       Verify 'zfs send' drills holes appropriately when files are replaced
  25 #
  26 # STRATEGY:
  27 #       1. Create dataset
  28 #       2. Write block 0 in a bunch of files
  29 #       3. Snapshot the dataset
  30 #       4. Remove all the files and rewrite some files with just block 1
  31 #       5. Snapshot the dataset
  32 #       6. Send both snapshots and receive them locally
  33 #       7. diff the received dataset and the old datasets.
  34 #       8. Repeat steps 1-7 above with pool that never had hole birth enabled.
  35 #
  36
  37 verify_runnable "both"
  38
  39 function cleanup
  40 {
  41         zfs destroy -rf $TESTPOOL/fs
  42         zfs destroy -rf $TESTPOOL/recvfs
  43         rm $streamfile
  44         rm $vdev
  45         zpool destroy testpool
  46 }
  47
  48
  49 log_assert "Verify that 'zfs send' drills appropriate holes"
  50 log_onexit cleanup
  51 streamfile=$(mktemp /var/tmp/file.XXXXXX)
  52 vdev=$(mktemp /var/tmp/file.XXXXXX)
  53
  54
  55 test_pool ()
  56 {
  57         POOL=$1
  58         log_must zfs create -o recordsize=512 $POOL/fs
  59         mntpnt=$(get_prop mountpoint "$POOL/fs")
  60         log_must dd if=/dev/urandom of=${mntpnt}/file bs=512 count=1 2>/dev/null
  61         first_object=$(ls -i $mntpnt | awk '{print $1}')
  62         log_must zfs snapshot $POOL/fs@a
  63         while true; do
  64                 log_must find $mntpnt -delete
  65                 sync
  66                 log_must mkfiles "$mntpnt/" 4000
  67                 FILE=$(ls -i $mntpnt | awk \
  68                         '{if ($1 == '$first_object') {print $2}}')
  69                 if [[ -n "$FILE" ]]; then
  70                         break
  71                 fi
  72         done
  73         dd if=/dev/urandom of=${mntpnt}/$FILE bs=512 count=1 seek=1 2>/dev/null
  74
  75         log_must zfs snapshot $POOL/fs@b
  76
  77         log_must eval "zfs send $POOL/fs@a > $streamfile"
  78         cat $streamfile | log_must zfs receive $POOL/recvfs
  79
  80         log_must eval "zfs send -i @a $POOL/fs@b > $streamfile"
  81         cat $streamfile | log_must zfs receive $POOL/recvfs
  82
  83         recv_mntpnt=$(get_prop mountpoint "$POOL/recvfs")
  84         log_must diff -r $mntpnt $recv_mntpnt
  85         log_must zfs destroy -rf $POOL/fs
  86         log_must zfs destroy -rf $POOL/recvfs
  87 }
  88
  89 test_pool $TESTPOOL
  90 log_must truncate --size=1G $vdev
  91 log_must zpool create -o version=1 testpool $vdev
  92 test_pool testpool
  93 log_must zpool destroy testpool
  94 log_must zpool create -d testpool $vdev
  95 test_pool testpool
  96 log_must zpool destroy testpool
  97
  98
  99 log_pass "'zfs send' drills appropriate holes"