cli_root/zpool_import/zpool_import_missing_002_pos.ksh

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

#
# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
#

. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
. $STF_SUITE/tests/functional/cli_root/zpool_import/zpool_import.cfg

#
# DESCRIPTION:
#   Once a pool has been exported, and one or more devices are
#   move to other place, import should handle this kind of situation
#   as described:
#       - Regular, report error while any number of devices failing.
#       - Mirror could withstand (N-1) devices failing
#         before data integrity is compromised
#       - Raidz could withstand one devices failing
#         before data integrity is compromised
#   Verify that is true.
#
# STRATEGY:
#   1. Create test pool upon device files using the various combinations.
#       - Regular pool
#       - Mirror
#       - Raidz
#   2. Create necessary filesystem and test files.
#   3. Export the test pool.
#   4. Move one or more device files to other directory
#   5. Verify 'zpool import -d' with the new directory
#      will handle moved files successfullly.
#      Using the various combinations.
#       - Regular import
#       - Alternate Root Specified
#

verify_runnable "global"

set -A vdevs "" "mirror" "raidz"
set -A options "" "-R $ALTER_ROOT"

function cleanup
{
    cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"
    [[ -e $DEVICE_DIR/$DEVICE_ARCHIVE ]] && \
        log_must tar xf $DEVICE_DIR/$DEVICE_ARCHIVE

    poolexists $TESTPOOL1 || \
        log_must zpool import -d $DEVICE_DIR $TESTPOOL1

    cleanup_filesystem $TESTPOOL1 $TESTFS

    destroy_pool $TESTPOOL1
}

function cleanup_all
{
    cleanup

    # recover dev files
    typeset i=0
    while (( i < $MAX_NUM )); do
        typeset dev_file=${DEVICE_DIR}/${DEVICE_FILE}$i
        if [[ ! -e ${dev_file} ]]; then
            log_must mkfile $FILE_SIZE ${dev_file}
        fi
        ((i += 1))
    done

    log_must rm -f $DEVICE_DIR/$DEVICE_ARCHIVE
    cd $CWD || log_fail "Unable change directory to $CWD"

    [[ -d $ALTER_ROOT ]] && \
        log_must rm -rf $ALTER_ROOT

    [[ -d $BACKUP_DEVICE_DIR ]] && \
        log_must rm -rf $BACKUP_DEVICE_DIR
}

log_onexit cleanup_all

log_assert "Verify that import could handle moving device."

CWD=$PWD

[[ ! -d $BACKUP_DEVICE_DIR ]] &&
    log_must mkdir -p $BACKUP_DEVICE_DIR

cd $DEVICE_DIR || log_fail "Unable change directory to $DEVICE_DIR"

typeset -i i=0
typeset -i j=0
typeset -i count=0
typeset basedir backup
typeset action

while (( i < ${#vdevs[*]} )); do

    (( i != 0 )) && \
        log_must tar xf $DEVICE_DIR/$DEVICE_ARCHIVE

    setup_filesystem "$DEVICE_FILES" \
        $TESTPOOL1 $TESTFS $TESTDIR1 \
        "" ${vdevs[i]}

    guid=$(get_config $TESTPOOL1 pool_guid)
    backup=""

    log_must cp $MYTESTFILE $TESTDIR1/$TESTFILE0

    log_must zfs umount $TESTDIR1

    j=0
    while (( j <  ${#options[*]} )); do

        count=0

        #
        # Restore all device files.
        #
        [[ -n $backup ]] && \
            log_must tar xf $DEVICE_DIR/$DEVICE_ARCHIVE

        log_must rm -f $BACKUP_DEVICE_DIR/*

        for device in $DEVICE_FILES ; do

            poolexists $TESTPOOL1 && \
                log_must zpool export $TESTPOOL1

            #
            # Backup all device files while filesystem prepared.
            #
            if [[ -z $backup ]] ; then
                log_must tar cf $DEVICE_DIR/$DEVICE_ARCHIVE ${DEVICE_FILE}*
                backup="true"
            fi

            log_must mv $device $BACKUP_DEVICE_DIR

            (( count = count + 1 ))

            action=log_mustnot
            case "${vdevs[i]}" in
                'mirror') (( count < $GROUP_NUM )) && \
                    action=log_must
                    ;;
                'raidz')  (( count == 1 )) && \
                    action=log_must
                    ;;
            esac

            typeset target=$TESTPOOL1
            if (( RANDOM % 2 == 0 )) ; then
                target=$guid
                log_note "Import by guid."
            fi
            $action zpool import \
                -d $DEVICE_DIR ${options[j]} $target

        done

        ((j = j + 1))
    done

    cleanup

    ((i = i + 1))
done

log_pass "Import could handle moving device."