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