functional/grow_replicas/grow_replicas_001_pos.ksh

	grow_replicas_001_pos.ksh revision 1d32ba663e202c24a5a1f2e5aef83fffb447cb7f
#! /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.
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
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#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
# Copyright 2016 Nexenta Systems, Inc.
#

. $STF_SUITE/tests/functional/grow_replicas/grow_replicas.cfg

# DESCRIPTION:
# A ZFS filesystem 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 the filesystem on mirror/raidz pool by writing a file until ENOSPC.
# 2. Grow the mirror/raidz pool by adding another mirror/raidz vdev.
# 3. Verify that more data can now be written to the filesystem.

verify_runnable "global"

if ! is_physical_device $DISKS; then
    log_unsupported "This test case cannot be run on raw files"
fi

function cleanup
{
    datasetexists $TESTPOOL && log_must destroy_pool $TESTPOOL
    [[ -d $TESTDIR ]] && log_must rm -rf $TESTDIR
}

log_assert "mirror/raidz pool may be increased in capacity by adding a disk"

log_onexit cleanup

readonly ENOSPC=28

for pooltype in "mirror" "raidz"; do
    log_note "Creating pool type: $pooltype"

    if [[ -n $DISK ]]; then
        log_note "No spare disks available. Using slices on $DISK"
        for slice in 0 1 3 4 ; do
            log_must set_partition $slice "$cyl" $SIZE $DISK
            cyl=$(get_endslice $DISK $slice)
        done
        create_pool $TESTPOOL $pooltype ${DISK}s0 ${DISK}s1
    else
        log_must set_partition 0 "" $SIZE $DISK0
        log_must set_partition 0 "" $SIZE $DISK1
        create_pool $TESTPOOL $pooltype ${DISK0}s0 ${DISK1}s0
    fi

    [[ -d $TESTDIR ]] && log_must rm -rf $TESTDIR
    log_must zfs create $TESTPOOL/$TESTFS
    log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS

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

    [[ $? -ne $ENOSPC ]] && \
        log_fail "file_write completed w/o ENOSPC"

    [[ ! -s $TESTDIR/$TESTFILE1 ]] && \
        log_fail "$TESTDIR/$TESTFILE1 was not created"

    # $DISK will be set if we're using slices on one disk
    if [[ -n $DISK ]]; then
        log_must zpool add $TESTPOOL $pooltype ${DISK}s3 ${DISK}s4
    else
        [[ -z $DISK2 || -z $DISK3 ]] &&
            log_unsupported "No spare disks available"
        log_must zpool add $TESTPOOL $pooltype ${DISK2}s0 ${DISK3}s0
    fi

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

    log_must destroy_pool $TESTPOOL
done

log_pass "mirror/raidz pool successfully grown"