#!/usr/local/bin/ksh93 -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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#

#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
. $STF_SUITE/include/libtest.kshlib
. $STF_SUITE/tests/cli_root/zpool_add/zpool_add.kshlib

################################################################################
#
# __stc_assertion_start
#
# ID: zpool_add_006_pos
#
# DESCRIPTION:
# 'zpool add [-f]' can add large numbers of file-in-zfs-filesystem-based vdevs 
# to the specified pool without any errors.
#
# STRATEGY:
# 1. Create assigned number of files in ZFS filesystem as vdevs and use the first
# file to create a pool
# 2. Add other vdevs to the pool should get success
# 3  Fill in the filesystem and create a partially written file 
# as vdev
# 4. Add the new file into the pool should be failed.
#
# TESTABILITY: explicit
#
# TEST_AUTOMATION_LEVEL: automated
#
# CODING_STATUS: COMPLETED (2005-10-09)
#
# __stc_assertion_end
#
################################################################################

verify_runnable "global"

function cleanup
{
	poolexists $TESTPOOL1 && \
		destroy_pool $TESTPOOL1

	poolexists $TESTPOOL && \
		destroy_pool $TESTPOOL

	if [[ -d $TESTDIR ]]; then
		log_must $RM -rf $TESTDIR
	fi
}

	
#
# Create a pool and fs on the assigned disk, and dynamically create large 
# numbers of files as vdevs.(the default value is <VDEVS_NUM>) 
# the first file will be used to create a pool for other vdevs to be added into
#

function setup_vdevs #<disk> 
{
	typeset disk=$1
	typeset -i count=0
	typeset -i largest_num=0
	typeset -i slicesize=0
	typeset vdev=""

	fs_size=$(get_available_disk_size $disk)

	# 64M is the minimum size for the pool
	(( largest_num = fs_size / (1024 * 1024 * 64) ))
	if (( largest_num < $VDEVS_NUM )); then
		# Minus $largest_num/20 to leave 5% space for metadata.
		(( vdevs_num=largest_num - largest_num/20 ))
		file_size=64
	else
		vdevs_num=$VDEVS_NUM
		(( file_size = fs_size / (1024 * 1024 * (vdevs_num + vdevs_num/20)) ))
		if (( file_size > FILE_SIZE )); then
			file_size=$FILE_SIZE
		fi
		# Plus $vdevs_num/20 to provide enough space for metadata.
		(( slice_size = file_size * (vdevs_num + vdevs_num/20) ))
		wipe_partition_table $disk					
		set_partition 0 "" ${slice_size}m $disk
        fi
	vdev=${disk}

	create_pool $TESTPOOL $vdev  
	[[ -d $TESTDIR ]] && \
		log_must $RM -rf $TESTDIR  
        log_must $MKDIR -p $TESTDIR  
        log_must $ZFS create $TESTPOOL/$TESTFS 
        log_must $ZFS set mountpoint=$TESTDIR $TESTPOOL/$TESTFS  

# Create a pool first using the first file, and make subsequent files ready
# as vdevs to add to the pool

	vdev=${TESTDIR}/file.$count
	VDEV_SIZE=${file_size}m
	log_must create_vdevs ${TESTDIR}/file.$count
	create_pool "$TESTPOOL1" "${TESTDIR}/file.$count"
	log_must poolexists "$TESTPOOL1"

	while (( count < vdevs_num )); do # minus 1 to avoid space non-enough
		(( count = count + 1 ))
		log_must create_vdevs ${TESTDIR}/file.$count
		vdevs_list="$vdevs_list ${TESTDIR}/file.$count"
	done
	unset VDEV_SIZE
}

log_assert " 'zpool add [-f]' can add large numbers of vdevs to the specified" \
	   " pool without any errors."
log_onexit cleanup

vdevs_list=""
vdevs_num=$VDEVS_NUM
file_size=$FILE_SIZE

setup_vdevs $DISK0
log_must $ZPOOL add -f "$TESTPOOL1" $vdevs_list
log_must iscontained "$TESTPOOL1" "$vdevs_list"

log_pass "'zpool successfully add [-f]' can add large numbers of vdevs to the" \
	 "specified pool without any errors."
