1#! /usr/local/bin/ksh93 -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 2008 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26
27. $STF_SUITE/include/libtest.kshlib
28. $STF_SUITE/tests/reservation/reservation.kshlib
29
30###############################################################################
31#
32# __stc_assertion_start
33#
34# ID: reservation_004_pos
35#
36# DESCRIPTION:
37#
38# When a dataset which has a reservation set on it is destroyed,
39# the space consumed or reserved by that dataset should be released
40# back into the pool.
41#
42# STRATEGY:
43# 1) Create a filesystem, regular and sparse volume
44# 2) Get the space used and available in the pool
45# 3) Set a reservation on the filesystem less than the space available.
46# 4) Verify that the 'reservation' property for the filesystem has
47# the correct value.
48# 5) Destroy the filesystem without resetting the reservation value.
49# 6) Verify that the space used and available totals for the pool have
50# changed by the expected amounts (within tolerances).
51# 7) Repeat steps 3-6 for a regular volume and sparse volume
52#
53# TESTABILITY: explicit
54#
55# TEST_AUTOMATION_LEVEL: automated
56#
57# CODING_STATUS: COMPLETED (2005-07-19)
58#
59# __stc_assertion_end
60#
61################################################################################
62
63verify_runnable "both"
64
65log_assert "Verify space released when a dataset with reservation is destroyed"
66
67log_must $ZFS create $TESTPOOL/$TESTFS2
68
69space_avail=`get_prop available $TESTPOOL`
70
71if ! is_global_zone ; then
72	OBJ_LIST="$TESTPOOL/$TESTFS2"
73else
74	OBJ_LIST="$TESTPOOL/$TESTFS2 \
75		$TESTPOOL/$TESTVOL $TESTPOOL/$TESTVOL2"
76
77        (( vol_set_size = space_avail / 4 ))
78	vol_set_size=$(floor_volsize $vol_set_size)
79	(( sparse_vol_set_size = space_avail * 4 ))
80	sparse_vol_set_size=$(floor_volsize $sparse_vol_set_size)
81
82	log_must $ZFS create -V $vol_set_size $TESTPOOL/$TESTVOL
83	if fs_prop_exist refreserv; then
84                log_must $ZFS set refreservation=none $TESTPOOL/$TESTVOL
85        fi
86	log_must $ZFS set reservation=none $TESTPOOL/$TESTVOL
87	log_must $ZFS create -s -V $sparse_vol_set_size $TESTPOOL/$TESTVOL2
88fi
89
90# re-calculate space available.
91space_avail=`get_prop available $TESTPOOL`
92
93# Calculate a large but valid reservation value.
94resv_size_set=`expr $space_avail - $RESV_DELTA`
95
96for obj in $OBJ_LIST ; do
97
98	space_avail=`get_prop available $TESTPOOL`
99	space_used=`get_prop used $TESTPOOL`
100
101	#
102        # For regular (non-sparse) volumes the upper limit is determined
103        # not by the space available in the pool but rather by the size
104        # of the volume itself.
105        #
106        [[ $obj == $TESTPOOL/$TESTVOL ]] && \
107                (( resv_size_set = vol_set_size - RESV_DELTA ))
108
109	log_must $ZFS set reservation=$resv_size_set $obj
110
111	resv_size_get=`get_prop reservation $obj`
112	if [[ $resv_size_set != $resv_size_get ]]; then
113		log_fail "Reservation not the expected value " \
114		"($resv_size_set != $resv_size_get)"
115	fi
116
117	log_must $ZFS destroy -f $obj
118
119	new_space_avail=`get_prop available $TESTPOOL`
120	new_space_used=`get_prop used $TESTPOOL`
121
122	log_must within_limits $space_used $new_space_used $RESV_TOLERANCE
123	log_must within_limits $space_avail $new_space_avail $RESV_TOLERANCE
124done
125
126log_pass "Space correctly released when dataset is destroyed"
127