1#!/usr/bin/bash -p 2# 3# This file and its contents are supplied under the terms of the 4# Common Development and Distribution License ("CDDL"), version 1.0. 5# You may only use this file in accordance with the terms of version 6# 1.0 of the CDDL. 7# 8# A full copy of the text of the CDDL should have accompanied this 9# source. A copy of the CDDL is also available via the Internet at 10# http://www.illumos.org/license/CDDL. 11# 12 13# 14# Copyright 2018 Joyent, Inc. 15# 16 17. $STF_SUITE/include/libtest.shlib 18. $STF_SUITE/tests/functional/reservation/reservation.shlib 19 20# 21# DESCRIPTION: 22# 23# Cloning a thick provisioned volume results in a sparse volume 24# 25# STRATEGY: 26# 1) Create a thick provisioned volume. 27# 2) Snapshot and clone it. 28# 3) Verify that the clone is sparse. 29# 30 31verify_runnable "global" 32 33function cleanup 34{ 35 if datasetexists $TESTPOOL/$TESTVOL; then 36 # Destroy first vol and descendants in one go. 37 log_must zfs destroy -Rf $TESTPOOL/$TESTVOL 38 fi 39} 40 41log_onexit cleanup 42 43log_assert "Cloning a thick provisioned volume results in a sparse volume" 44 45space_avail=$(get_prop available $TESTPOOL) 46(( vol_size = (space_avail / 4) & ~(1024 * 1024 - 1) )) 47 48vol=$TESTPOOL/$TESTVOL 49snap=$vol@clone 50vol2=$TESTPOOL/$TESTVOL2 51 52# Create sparse vol and verify 53log_must zfs create -V $vol_size $vol 54resv=$(get_prop refreservation $vol) 55expected=$(volsize_to_reservation $vol $vol_size) 56log_must test $resv -eq $expected 57 58# Clone it 59log_must zfs snapshot $snap 60log_must zfs clone $snap $vol2 61 62# Verify 63resv=$(get_prop refreservation $vol2) 64log_must test $resv -eq 0 65 66log_pass "Cloning a thick provisioned volume results in a sparse volume" 67