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 destroying snapshots returns space to the pool. 38# 39# STRATEGY: 40# 1. Create a file system and populate it while snapshotting. 41# 2. Destroy the snapshots and remove the files. 42# 3. Verify the space returns to the pool. 43# 44 45verify_runnable "both" 46 47function cleanup 48{ 49 typeset -i i=1 50 while [[ $i -lt $COUNT ]]; do 51 snapexists $SNAPFS.$i 52 [[ $? -eq 0 ]] && \ 53 log_must $ZFS destroy $SNAPFS.$i 54 55 (( i = i + 1 )) 56 done 57 58 [[ -e $TESTDIR ]] && \ 59 log_must $RM -rf $TESTDIR/* > /dev/null 2>&1 60} 61 62log_assert "Verify that destroying snapshots returns space to the pool." 63 64log_onexit cleanup 65 66[[ -n $TESTDIR ]] && \ 67 log_must $RM -rf $TESTDIR/* > /dev/null 2>&1 68 69typeset -i COUNT=10 70 71orig_size=`get_prop available $TESTPOOL` 72 73log_note "Populate the $TESTDIR directory" 74typeset -i i=1 75while [[ $i -lt $COUNT ]]; do 76 log_must $FILE_WRITE -o create -f $TESTDIR/file$i \ 77 -b $BLOCKSZ -c $NUM_WRITES -d $i 78 79 log_must $ZFS snapshot $SNAPFS.$i 80 (( i = i + 1 )) 81done 82 83typeset -i i=1 84while [[ $i -lt $COUNT ]]; do 85 log_must rm -rf $TESTDIR/file$i > /dev/null 2>&1 86 log_must $ZFS destroy $SNAPFS.$i 87 88 (( i = i + 1 )) 89done 90 91new_size=`get_prop available $TESTPOOL` 92 93typeset -i tolerance=0 94 95(( tolerance = new_size - orig_size)) 96if (( tolerance > LIMIT )); then 97 log_fail "Space not freed. ($orig_size != $new_size)" 98fi 99 100log_pass "After destroying snapshots, the space is returned to the pool." 101