1#!/usr/bin/bash -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
28#
29# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/include/libtest.shlib
33. $STF_SUITE/tests/functional/reservation/reservation.shlib
34
35#
36# DESCRIPTION:
37#
38# ZFS allows reservations to be set on filesystems and volumes, provided
39# the reservation is less than the space available in the pool.
40#
41# STRATEGY:
42# 1) Create a regular and sparse volume
43#   (filesystem already created by default_setup)
44# 2) Get the space 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) Reset the reservation to 'none'
49# 6) Repeat steps 2-5 for both volume types
50#
51
52verify_runnable "both"
53
54function cleanup
55{
56	for obj in $OBJ_LIST; do
57		datasetexists $obj && log_must zfs destroy -f $obj
58	done
59}
60
61log_onexit cleanup
62
63log_assert "Verify that to set a reservation on a filesystem or volume must " \
64    "use value smaller than space available property of pool"
65
66space_avail=`get_prop available $TESTPOOL`
67
68if ! is_global_zone ; then
69	OBJ_LIST=""
70else
71	OBJ_LIST="$TESTPOOL/$TESTVOL $TESTPOOL/$TESTVOL2"
72
73	((vol_set_size = space_avail / 4))
74	vol_set_size=$(floor_volsize $vol_set_size)
75	((sparse_vol_set_size = space_avail * 4))
76	sparse_vol_set_size=$(floor_volsize $sparse_vol_set_size)
77
78	#
79	# Note that when creating a regular volume we are implicitly
80	# setting a reservation upon it (i.e. the size of the volume)
81	# which we reset back to zero initially.
82	#
83	log_must zfs create -V $vol_set_size $TESTPOOL/$TESTVOL
84	log_must zfs set reservation=none $TESTPOOL/$TESTVOL
85	log_must zfs set refreservation=none $TESTPOOL/$TESTVOL
86	log_must zfs create -s -V $sparse_vol_set_size $TESTPOOL/$TESTVOL2
87fi
88
89
90for obj in $TESTPOOL/$TESTFS $OBJ_LIST; do
91
92	space_avail=`get_prop available $TESTPOOL`
93	resv_size_set=`expr $space_avail - $RESV_DELTA`
94
95	#
96	# For a regular (non-sparse) volume the upper limit
97	# for reservations is not determined by the space
98	# available in the pool but rather by the size of
99	# the volume itself.
100	#
101	[[ $obj == $TESTPOOL/$TESTVOL ]] && \
102	    ((resv_size_set = vol_set_size - RESV_DELTA))
103
104	log_must zfs set reservation=$resv_size_set $obj
105
106	resv_size_get=`get_prop reservation $obj`
107	if [[ $resv_size_set != $resv_size_get ]]; then
108		log_fail "Reservation not the expected value " \
109		    "($resv_size_set != $resv_size_get)"
110	fi
111
112	log_must zero_reservation $obj
113
114	new_space_avail=`get_prop available $obj`
115
116	#
117	# Due to the way space is consumed and released by metadata we
118	# can't do an exact check here, but we do do a basic sanity
119	# check.
120	#
121	log_must within_limits $space_avail $new_space_avail $RESV_TOLERANCE
122done
123
124log_pass "Successfully set reservation on filesystem and volume"
125