xref: /illumos-gate/usr/src/test/zfs-tests/tests/functional/reservation/reservation_019_pos.sh (revision fa79a855d371dfcb29461ad6ebaf48a458bf9f14)
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# A thin provisioned volume can become thick provisioned with 'zfs set
24# refreservation=auto'.
25#
26# STRATEGY:
27# 1) Create a sparse value.
28# 2) Use zfs set refreservation=auto to make it thick provisioned.
29# 3) Verify that refreservation is now the size predicted by
30# volsize_to_reservation().
31#
32
33verify_runnable "global"
34
35function cleanup
36{
37	if datasetexists $TESTPOOL/$TESTVOL; then
38		log_must zfs destroy -f $TESTPOOL/$TESTVOL
39	fi
40}
41
42log_onexit cleanup
43
44log_assert "A thin provisioned volume can become thick provisioned with" \
45    "'zfs set refreservation=auto'."
46
47space_avail=$(get_prop available $TESTPOOL)
48(( vol_size = (space_avail / 2) & ~(1024 * 1024 - 1) ))
49
50vol=$TESTPOOL/$TESTVOL
51
52# Create sparse vol and verify
53log_must zfs create -V $vol_size -s $vol
54resv=$(get_prop refreservation $vol)
55log_must test $resv -eq 0
56
57# Set refreservation
58log_must zfs set refreservation=auto $vol
59
60# Verify
61resv=$(get_prop refreservation $vol)
62expected=$(volsize_to_reservation $vol $vol_size)
63log_must test $resv -eq $expected
64
65log_pass "Setting refreservation=auto set refreservation to expected value"
66