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# $FreeBSD$
24
25#
26# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)reservation_012_pos.ksh	1.3	09/08/06 SMI"
30#
31
32. $STF_SUITE/include/libtest.kshlib
33. $STF_SUITE/tests/reservation/reservation.kshlib
34
35###############################################################################
36#
37# __stc_assertion_start
38#
39# ID: reservation_012_pos
40#
41# DESCRIPTION:
42#
43# A reservation guarantees a certain amount of space for a dataset.
44# Nothing else which happens in the same pool should affect that
45# space, i.e. even if the rest of the pool fills up the reserved
46# space should still be accessible.
47#
48# STRATEGY:
49# 1) Create 2 filesystems
50# 2) Set a reservation on one filesystem
51# 3) Fill up the other filesystem (which does not have a reservation
52# set) until all space is consumed
53# 4) Verify can still write to the filesystem which has a reservation
54#
55# TESTABILITY: explicit
56#
57# TEST_AUTOMATION_LEVEL: automated
58#
59# CODING_STATUS: COMPLETED (2005-07-04)
60#
61# __stc_assertion_end
62#
63################################################################################
64
65verify_runnable "both"
66
67log_assert "Verify reservations protect space"
68
69function cleanup
70{
71	$ZFS destroy -f $TESTPOOL/$TESTFS2
72	[[ -d $TESTDIR2 ]] && \
73		log_must $RM -rf $TESTDIR2
74}
75
76log_onexit cleanup
77
78log_must $ZFS create $TESTPOOL/$TESTFS2
79log_must $ZFS set mountpoint=$TESTDIR2 $TESTPOOL/$TESTFS2
80
81space_avail=`get_prop available $TESTPOOL`
82
83(( resv_size_set = space_avail - RESV_FREE_SPACE ))
84
85log_must $ZFS set reservation=$resv_size_set $TESTPOOL/$TESTFS
86
87(( write_count = ( RESV_FREE_SPACE + RESV_TOLERANCE ) / BLOCK_SIZE ))
88
89$FILE_WRITE -o create -f $TESTDIR2/$TESTFILE1 -b $BLOCK_SIZE -c $write_count -d 0
90ret=$?
91if [[ $ret != $ENOSPC ]]; then
92	log_fail "Did not get ENOSPC (got $ret) for non-reserved filesystem"
93fi
94
95(( write_count = ( RESV_FREE_SPACE - RESV_TOLERANCE ) / BLOCK_SIZE ))
96log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE -c $write_count -d 0
97
98log_pass "Reserved space preserved correctly"
99