#!/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 http://www.opensolaris.org/os/licensing.
# 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
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# CDDL HEADER END
#

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2016 by Delphix. All rights reserved.
# Copyright (c) 2017 Datto Inc.
#

. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_scrub/zpool_scrub.cfg

#
# DESCRIPTION:
#	Verify scrub, scrub -p, and scrub -s show the right status.
#
# STRATEGY:
#	1. Create pool and create a 100MB file in it.
#	2. zpool scrub the pool and verify it's doing a scrub.
#	3. Pause scrub and verify it's paused.
#	4. Try to pause a paused scrub and make sure that fails.
#	5. Resume the paused scrub and verify scrub is again being performed.
#	6. Verify zpool scrub -s succeed when the system is scrubbing.
#
# NOTES:
#	Artificially limit the scrub speed by setting the zfs_scan_vdev_limit
#	low and adding a 50ms zio delay in order to ensure that the scrub does
#	not complete early.
#

verify_runnable "global"

function cleanup
{
	log_must zinject -c all
	log_must set_tunable64 zfs_scan_vdev_limit $ZFS_SCAN_VDEV_LIMIT_DEFAULT
	log_must rm -f $mntpnt/biggerfile
}

log_onexit cleanup

log_assert "Verify scrub, scrub -p, and scrub -s show the right status."

# Create 1G of additional data
mntpnt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
log_must $FILE_WRITE -b 1048576 -c 1024 -o create -d 0 -f $mntpnt/biggerfile
log_must sync

log_must zinject -d $DISK1 -D50:1 $TESTPOOL
log_must set_tunable64 zfs_scan_vdev_limit $ZFS_SCAN_VDEV_LIMIT_SLOW
log_must zpool scrub $TESTPOOL
log_must is_pool_scrubbing $TESTPOOL true
log_must $ZPOOL scrub -p $TESTPOOL
log_must is_pool_scrub_paused $TESTPOOL true
log_mustnot $ZPOOL scrub -p $TESTPOOL
log_must is_pool_scrub_paused $TESTPOOL true
log_must $ZPOOL scrub $TESTPOOL
log_must is_pool_scrubbing $TESTPOOL true
log_must $ZPOOL scrub -s $TESTPOOL
log_must is_pool_scrub_stopped $TESTPOOL true

log_pass "Verified scrub, -s, and -p show expected status."
