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 2007 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
34#
35# DESCRIPTION:
36#	zpool history will truncate on small pools, leaving pool creation intact
37#
38# STRATEGY:
39#	1. Create two 100M virtual disk files.
40#	2. Create test pool using the two virtual files.
41#	3. Loop 100 times to set and remove compression to test dataset.
42#	4. Make sure 'zpool history' output is truncated
43#	5. Verify that the initial pool creation is preserved.
44#
45
46verify_runnable "global"
47
48function cleanup
49{
50	datasetexists $spool && log_must $ZPOOL destroy $spool
51	[[ -f $VDEV0 ]] && log_must $RM -f $VDEV0
52	[[ -f $VDEV1 ]] && log_must $RM -f $VDEV1
53	[[ -f $TMPFILE ]] && log_must $RM -f $TMPFILE
54}
55
56log_assert "zpool history limitation test."
57log_onexit cleanup
58
59mntpnt=$(get_prop mountpoint $TESTPOOL)
60(( $? != 0 )) && log_fail "get_prop mountpoint $TESTPOOL"
61
62VDEV0=$mntpnt/vdev0; VDEV1=$mntpnt/vdev1
63log_must $MKFILE 100m $VDEV0 $VDEV1
64
65spool=smallpool.$$; sfs=smallfs.$$
66log_must $ZPOOL create $spool $VDEV0 $VDEV1
67log_must $ZFS create $spool/$sfs
68
69typeset -i orig_count=$($ZPOOL history $spool | $WC -l)
70typeset orig_md5=$($ZPOOL history $spool | $HEAD -2 | $MD5SUM | \
71    $AWK '{print $1}')
72
73typeset -i i=0
74while ((i < 100)); do
75	$ZFS set compression=off $spool/$sfs
76	$ZFS set compression=on $spool/$sfs
77	$ZFS set compression=off $spool/$sfs
78	$ZFS set compression=on $spool/$sfs
79	$ZFS set compression=off $spool/$sfs
80
81	((i += 1))
82done
83
84TMPFILE=/tmp/spool.$$
85$ZPOOL history $spool >$TMPFILE
86typeset -i entry_count=$($WC -l $TMPFILE | $AWK '{print $1}')
87typeset final_md5=$($HEAD -2 $TMPFILE | $MD5SUM | $AWK '{print $1}')
88
89$GREP 'zpool create' $TMPFILE >/dev/null 2>&1 ||
90    log_fail "'zpool create' was not found in pool history"
91
92$GREP 'zfs create' $TMPFILE >/dev/null 2>&1 &&
93    log_fail "'zfs create' was found in pool history"
94
95$GREP 'zfs set compress' $TMPFILE >/dev/null 2>&1 ||
96    log_fail "'zfs set compress' was found in pool history"
97
98# Verify that the creation of the pool was preserved in the history.
99if [[ $orig_md5 != $final_md5 ]]; then
100	log_fail "zpool creation history was not preserved."
101fi
102
103log_pass "zpool history limitation test passed."
104