#! /usr/local/bin/ksh93 -p
#
# CDDL HEADER START
#
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# Common Development and Distribution License (the "License").
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# $FreeBSD: releng/12.3/tests/sys/cddl/zfs/tests/grow_replicas/grow_replicas_001_pos.ksh 329867 2018-02-23 16:31:00Z asomers $

#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"@(#)grow_replicas_001_pos.ksh	1.3	08/11/03 SMI"
#

. $STF_SUITE/include/libtest.kshlib

###############################################################################
#
# __stc_assertion_start
#
# ID: grow_replicas_001_pos
#
# DESCRIPTION:
# A ZFS file system is limited by the amount of disk space
# available to the pool. Growing the pool by adding a disk
# increases the amount of space.
#
# STRATEGY:
# 1) Fill a ZFS filesystem mirror/raidz until ENOSPC by creating lots
# of files
# 2) Grow the mirror/raidz by adding a disk
# 3) Verify that more data can now be written to the file system
#
# TESTABILITY: explicit
#
# TEST_AUTOMATION_LEVEL: automated
#
# CODING_STATUS: COMPLETED (2005-10-04)
#
# __stc_assertion_end
#
################################################################################

verify_runnable "global"

log_assert "A zpool mirror/raidz may be increased in capacity by adding a disk."

log_must $ZFS set compression=off $TESTPOOL/$TESTFS
$FILE_WRITE -o create -f $TESTDIR/$TESTFILE1 \
        -b $BLOCK_SIZE -c $WRITE_COUNT -d 0

typeset -i zret=$?
readonly ENOSPC=28
if [[ $zret -ne $ENOSPC ]]; then
        log_fail "file_write completed w/o ENOSPC, aborting!!!"
fi

if [[ ! -s $TESTDIR/$TESTFILE1 ]]; then
        log_fail "$TESTDIR/$TESTFILE1 was not created"
fi

#
# $DISK will be set if we're using slices on one disk
#
if [[ -n $DISK ]]; then
        log_must $ZPOOL add $TESTPOOL $POOLTYPE ${DISK}p3 \
            ${DISK}p4
else
        [[ -z $DISK2 || -z $DISK3 ]] && \
            log_unsupported "No spare disks available."
        log_must $ZPOOL add -f $TESTPOOL $POOLTYPE ${DISK2}p${PARTITION} \
	    ${DISK3}p${PARTITION}
fi

log_must $FILE_WRITE -o append -f $TESTDIR/$TESTFILE1 \
        -b $BLOCK_SIZE -c $SMALL_WRITE_COUNT -d 0

log_must $ZFS inherit compression $TESTPOOL/$TESTFS
log_pass "TESTPOOL mirror/raidz successfully grown"
