blob: 77bf8beb0b92dafdc767c0761f79dc6e200a0ca8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#!/bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or https://opensource.org/licenses/CDDL-1.0.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2009 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/reservation/reservation.shlib
#
# DESCRIPTION:
#
# A reservation guarantees a certain amount of space for a dataset.
# Nothing else which happens in the same pool should affect that
# space, i.e. even if the rest of the pool fills up the reserved
# space should still be accessible.
#
# STRATEGY:
# 1) Create 2 filesystems
# 2) Set a reservation on one filesystem
# 3) Fill up the other filesystem (which does not have a reservation
# set) until all space is consumed
# 4) Verify can still write to the filesystem which has a reservation
#
verify_runnable "both"
log_assert "Verify reservations protect space"
function cleanup
{
log_must zfs destroy -f $TESTPOOL/$TESTFS2
log_must zero_reservation $TESTPOOL/$TESTFS
[[ -e $TESTDIR/$TESTFILE2 ]] && log_must rm -rf $TESTDIR/$TESTFILE2
[[ -d $TESTDIR2 ]] && log_must rm -rf $TESTDIR2
}
log_onexit cleanup
log_must zfs create $TESTPOOL/$TESTFS2
log_must zfs set mountpoint=$TESTDIR2 $TESTPOOL/$TESTFS2
space_avail=`get_prop available $TESTPOOL`
((resv_size_set = space_avail - RESV_FREE_SPACE))
log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS
((write_count = (RESV_FREE_SPACE + RESV_TOLERANCE) / BLOCK_SIZE))
file_write -o create -f $TESTDIR2/$TESTFILE1 -b $BLOCK_SIZE -c $write_count \
-d 0
ret=$?
if [[ $ret != $ENOSPC ]]; then
log_fail "Did not get ENOSPC (got $ret) for non-reserved filesystem"
fi
((write_count = (RESV_FREE_SPACE - RESV_TOLERANCE) / BLOCK_SIZE))
log_must file_write -o create -f $TESTDIR/$TESTFILE2 -b $BLOCK_SIZE -c \
$write_count -d 0
log_pass "Reserved space preserved correctly"
|
