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1 | #!/bin/ksh -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 | # | |
c1d9abf9 | 29 | # Copyright (c) 2013, 2016 by Delphix. All rights reserved. |
6bb24f4d BB |
30 | # |
31 | ||
32 | . $STF_SUITE/include/libtest.shlib | |
33 | . $STF_SUITE/tests/functional/reservation/reservation.shlib | |
34 | ||
35 | # | |
36 | # DESCRIPTION: | |
37 | # | |
38 | # In pool with a full filesystem and another filesystem with a reservation | |
39 | # setting the reservation on the second filesystem to 'none' should allow more | |
40 | # data to be written to the first filesystem. | |
41 | # | |
42 | # | |
43 | # STRATEGY: | |
44 | # 1) Create a filesystem as a dataset | |
45 | # 2) Create a filesystem at the same level | |
46 | # 3) Set a reservation on the dataset filesystem | |
47 | # 4) Fill up the filesystem | |
48 | # 5) Set the reservation on the dataset filesystem to 'none' | |
49 | # 6) Verify we can write more data to the first filesystem | |
50 | # | |
51 | ||
52 | verify_runnable "both" | |
53 | ||
f94a5dcc | 54 | log_assert "Setting top level dataset reservation to 'none' allows more data " \ |
6bb24f4d BB |
55 | "to be written to top level filesystem" |
56 | ||
57 | function cleanup | |
58 | { | |
c1d9abf9 JWK |
59 | log_must rm -rf $TESTDIR/$TESTFILE1 |
60 | log_must rm -rf $TESTDIR/$TESTFILE2 | |
61 | log_must zfs destroy -f $TESTPOOL/$TESTFS1 | |
6bb24f4d BB |
62 | } |
63 | ||
64 | log_onexit cleanup | |
65 | ||
c1d9abf9 | 66 | log_must zfs create $TESTPOOL/$TESTFS1 |
6bb24f4d BB |
67 | |
68 | space_avail=`get_prop available $TESTPOOL` | |
69 | ||
70 | # | |
71 | # To make sure this test doesn't take too long to execute on | |
72 | # large pools, we calculate a reservation setting which when | |
73 | # applied to the dataset will ensure we have RESV_FREE_SPACE | |
74 | # left free in the pool which we can quickly fill. | |
75 | # | |
76 | ((resv_size_set = space_avail - RESV_FREE_SPACE)) | |
77 | ||
c1d9abf9 | 78 | log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS1 |
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79 | |
80 | space_avail_still=`get_prop available $TESTPOOL` | |
81 | ||
82 | fill_size=`expr $space_avail_still + $RESV_TOLERANCE` | |
83 | write_count=`expr $fill_size / $BLOCK_SIZE` | |
84 | ||
85 | # Now fill up the filesystem (which doesn't have a reservation set | |
86 | # and thus will use up whatever free space is left in the pool). | |
c1d9abf9 | 87 | file_write -o create -f $TESTDIR/$TESTFILE1 -b $BLOCK_SIZE \ |
6bb24f4d BB |
88 | -c $write_count -d 0 |
89 | ret=$? | |
90 | if (($ret != $ENOSPC)); then | |
91 | log_fail "Did not get ENOSPC as expected (got $ret)." | |
92 | fi | |
93 | ||
c1d9abf9 | 94 | log_must zfs set reservation=none $TESTPOOL/$TESTFS1 |
6bb24f4d | 95 | |
c1d9abf9 JWK |
96 | log_must file_write -o create -f $TESTDIR/$TESTFILE2 \ |
97 | -b $(getconf PAGESIZE) -c 1000 -d 0 | |
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98 | |
99 | log_pass "Setting top level dataset reservation to 'none' allows more " \ | |
100 | "data to be written to the top level filesystem" |