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 volume with -o refreservation=auto creates a thick provisioned 24# volume 25# 26# STRATEGY: 27# 1) Create a sparse volume. 28# 2) Snapshot and clone it, using clone -o refreservation=auto. 29# 3) Verify that the clone has refreservation that matches the size predicted by 30# volsize_to_reservation(). 31# 4) Snapshot this second volume and clone it, using clone -o 32# refreservation=auto. 33# 5) Verify that the second clone has refreservation that matches the size 34# predicted by volsize_to_reservation(). 35# 36 37verify_runnable "global" 38 39function cleanup 40{ 41 if datasetexists $TESTPOOL/$TESTVOL; then 42 # Destroy first vol and descendants in one go. 43 log_must zfs destroy -Rf $TESTPOOL/$TESTVOL 44 fi 45} 46 47log_onexit cleanup 48 49log_assert "Cloning a volume with -o refreservation=auto creates a thick" \ 50 "provisioned volume" 51 52space_avail=$(get_prop available $TESTPOOL) 53(( vol_size = (space_avail / 4) & ~(1024 * 1024 - 1) )) 54 55vol=$TESTPOOL/$TESTVOL 56vol2=$TESTPOOL/$TESTVOL2 57vol3=$TESTPOOL/$TESTVOL2-again 58 59# Create sparse vol and verify 60log_must zfs create -s -V $vol_size $vol 61resv=$(get_prop refreservation $vol) 62log_must test $resv -eq 0 63 64# Clone it 65snap=$vol@clone 66log_must zfs snapshot $snap 67log_must zfs clone -o refreservation=auto $snap $vol2 68 69# Verify it is thick provisioned 70resv=$(get_prop refreservation $vol2) 71expected=$(volsize_to_reservation $vol2 $vol_size) 72log_must test $resv -eq $expected 73 74# Clone the thick provisioned volume 75snap=$vol2@clone 76log_must zfs snapshot $snap 77log_must zfs clone -o refreservation=auto $snap $vol3 78 79# Verify new newest clone is also thick provisioned 80resv=$(get_prop refreservation $vol3) 81expected=$(volsize_to_reservation $vol3 $vol_size) 82log_must test $resv -eq $expected 83 84log_pass "Cloning a thick provisioned volume results in a sparse volume" 85