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, 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# A zfs file system snapshot is identical to 38# the originally snapshot'd file system, after the file 39# system has been changed. Uses 'sum -r'. 40# 41# STRATEGY: 42# 1. Create a file in the zfs file system 43# 2. Checksum the file for later comparison 44# 3. Create a snapshot of the dataset 45# 4. Append to the original file 46# 5. Verify the snapshot and file agree 47# 48 49verify_runnable "both" 50 51function cleanup 52{ 53 snapexists $SNAPFS 54 if [[ $? -eq 0 ]]; then 55 log_must zfs destroy $SNAPFS 56 fi 57 58 if [[ -e $SNAPDIR ]]; then 59 log_must rm -rf $SNAPDIR > /dev/null 2>&1 60 fi 61 62 if [[ -e $TESTDIR ]]; then 63 log_must rm -rf $TESTDIR/* > /dev/null 2>&1 64 fi 65} 66 67log_assert "Verify a file system snapshot is identical to original." 68 69log_onexit cleanup 70 71log_note "Create a file in the zfs filesystem..." 72log_must file_write -o create -f $TESTDIR/$TESTFILE -b $BLOCKSZ \ 73 -c $NUM_WRITES -d $DATA 74 75log_note "Sum the file, save for later comparison..." 76FILE_SUM=`sum -r $TESTDIR/$TESTFILE | awk '{ print $1 }'` 77log_note "FILE_SUM = $FILE_SUM" 78 79log_note "Create a snapshot and mount it..." 80log_must zfs snapshot $SNAPFS 81 82log_note "Append to the original file..." 83log_must file_write -o append -f $TESTDIR/$TESTFILE -b $BLOCKSZ \ 84 -c $NUM_WRITES -d $DATA 85 86SNAP_FILE_SUM=`sum -r $SNAPDIR/$TESTFILE | awk '{ print $1 }'` 87if [[ $SNAP_FILE_SUM -ne $FILE_SUM ]]; then 88 log_fail "Sums do not match, aborting!! ($SNAP_FILE_SUM != $FILE_SUM)" 89fi 90 91log_pass "Both Sums match. ($SNAP_FILE_SUM == $FILE_SUM)" 92