xref: /titanic_52/usr/src/test/zfs-tests/tests/functional/reservation/reservation_006_pos.sh (revision f38cb554a534c6df738be3f4d23327e69888e634)
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 2009 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2013 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# Reservations (if successfully set) guarantee a minimum amount of space
39# for a dataset. Unlike quotas however there should be no restrictions
40# on accessing space outside of the limits of the reservation (if the
41# space is available in the pool). Verify that in a filesystem with a
42# reservation set that its possible to create files both within the
43# reserved space and also outside.
44#
45# STRATEGY:
46# 1) Create a filesystem
47# 2) Get the space used and available in the pool
48# 3) Set a reservation on the filesystem
49# 4) Verify can write a file that is bigger than the reserved space
50#
51# i.e. we start writing within the reserved region and then continue
52# for 20MB outside it.
53#
54
55verify_runnable "both"
56
57function cleanup
58{
59	[[ -e $TESTDIR/$TESTFILE1 ]] && log_must $RM -rf $TESTDIR/$TESTFILE1
60	log_must $ZFS set reservation=none $TESTPOOL/$TESTFS
61}
62
63log_onexit cleanup
64
65log_assert "Verify can create files both inside and outside reserved areas"
66
67space_used=`get_prop used $TESTPOOL`
68
69log_must $ZFS set reservation=$RESV_SIZE $TESTPOOL/$TESTFS
70
71#
72# Calculate how many writes of BLOCK_SIZE it would take to fill
73# up RESV_SIZE + 20971520 (20 MB).
74#
75fill_size=`expr $RESV_SIZE + 20971520`
76write_count=`expr $fill_size / $BLOCK_SIZE`
77
78log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE \
79    -c $write_count -d 0
80
81log_pass "Able to create files inside and outside reserved area"
82