xref: /illumos-gate/usr/src/test/zfs-tests/tests/functional/snapshot/rollback_002_pos.ksh (revision ad69a33458cf73ee14857d57799cf686946e0b88)
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/include/libtest.shlib
33. $STF_SUITE/tests/functional/snapshot/snapshot.cfg
34
35#
36# DESCRIPTION:
37# Verify that rollbacks are with respect to the latest snapshot.
38#
39# STRATEGY:
40# 1. Empty a file system
41# 2. Populate the file system
42# 3. Take a snapshot of the file system
43# 4. Add new files to the file system
44# 5. Take a snapshot
45# 6. Remove the original files
46# 7. Perform a rollback
47# 8. Verify the latest snapshot and file system agree
48#
49
50verify_runnable "both"
51
52function cleanup
53{
54	snapexists $SNAPFS.1
55	[[ $? -eq 0 ]] && \
56		log_must $ZFS destroy $SNAPFS.1
57
58	snapexists $SNAPFS
59	[[ $? -eq 0 ]] && \
60		log_must $ZFS destroy $SNAPFS
61
62	[[ -e $TESTDIR ]] && \
63		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
64}
65
66log_assert "Verify rollback is with respect to latest snapshot."
67
68log_onexit cleanup
69
70[[ -n $TESTDIR ]] && \
71    log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
72
73typeset -i COUNT=10
74
75log_note "Populate the $TESTDIR directory (prior to first snapshot)"
76typeset -i i=1
77while [[ $i -le $COUNT ]]; do
78	log_must $FILE_WRITE -o create -f $TESTDIR/original_file$i \
79	   -b $BLOCKSZ -c $NUM_WRITES -d $i
80
81	(( i = i + 1 ))
82done
83
84log_must $ZFS snapshot $SNAPFS
85
86FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total" | wc -l`
87if [[ $FILE_COUNT -ne $COUNT ]]; then
88        $LS -Al $SNAPDIR
89        log_fail "AFTER: $SNAPFS contains $FILE_COUNT files(s)."
90fi
91
92log_note "Populate the $TESTDIR directory (prior to second snapshot)"
93typeset -i i=1
94while [[ $i -le $COUNT ]]; do
95        log_must $FILE_WRITE -o create -f $TESTDIR/afterfirst_file$i \
96           -b $BLOCKSZ -c $NUM_WRITES -d $i
97
98        (( i = i + 1 ))
99done
100
101log_must $ZFS snapshot $SNAPFS.1
102
103log_note "Populate the $TESTDIR directory (Post second snapshot)"
104typeset -i i=1
105while [[ $i -le $COUNT ]]; do
106        log_must $FILE_WRITE -o create -f $TESTDIR/aftersecond_file$i \
107           -b $BLOCKSZ -c $NUM_WRITES -d $i
108
109        (( i = i + 1 ))
110done
111
112[[ -n $TESTDIR ]] && \
113    log_must $RM -rf $TESTDIR/original_file* > /dev/null 2>&1
114
115#
116# Now rollback to latest snapshot
117#
118log_must $ZFS rollback $SNAPFS.1
119
120FILE_COUNT=`$LS -Al $TESTDIR/aftersecond* 2> /dev/null \
121    | $GREP -v "total" | wc -l`
122if [[ $FILE_COUNT -ne 0 ]]; then
123        $LS -Al $TESTDIR
124        log_fail "$TESTDIR contains $FILE_COUNT aftersecond* files(s)."
125fi
126
127FILE_COUNT=`$LS -Al $TESTDIR/original* $TESTDIR/afterfirst*| $GREP -v "total" | wc -l`
128if [[ $FILE_COUNT -ne 20 ]]; then
129        $LS -Al $TESTDIR
130        log_fail "$TESTDIR contains $FILE_COUNT original* files(s)."
131fi
132
133log_pass "The rollback to the latest snapshot succeeded."
134