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 https://opensource.org/licenses/CDDL-1.0. 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# 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 log_must zfs destroy $SNAPFS.$i 53 54 (( i = i + 1 )) 55 done 56 57 [ -e $TESTDIR ] && log_must rm -rf $TESTDIR/* 58} 59 60log_assert "Verify that destroying snapshots returns space to the pool." 61 62log_onexit cleanup 63 64[ -n $TESTDIR ] && log_must rm -rf $TESTDIR/* 65 66typeset -i COUNT=10 67 68orig_size=`get_prop available $TESTPOOL` 69 70log_note "Populate the $TESTDIR directory" 71typeset -i i=1 72while [[ $i -lt $COUNT ]]; do 73 log_must file_write -o create -f $TESTDIR/file$i \ 74 -b $BLOCKSZ -c $NUM_WRITES -d $i 75 76 log_must zfs snapshot $SNAPFS.$i 77 (( i = i + 1 )) 78done 79 80typeset -i i=1 81while [[ $i -lt $COUNT ]]; do 82 log_must rm -f $TESTDIR/file$i 83 log_must zfs destroy $SNAPFS.$i 84 85 (( i = i + 1 )) 86done 87 88wait_freeing $TESTPOOL 89sync_pool 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