cli_root/zpool_create/zpool_create_004_pos.ksh

	zpool_create_004_pos.ksh revision d583b39bfb4e2571d3e41097c5c357ffe353ad45
#!/usr/bin/ksh
#
# 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
# information: Portions Copyright [yyyy] [name of copyright owner]
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#

#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

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

. $STF_SUITE/tests/functional/cli_root/zpool_create/zpool_create.shlib

#
# DESCRIPTION:
# 'zpool create [-f]' can create a storage pool with large number of
# file-in-zfs-filesystem-based vdevs without any errors.
#
# STRATEGY:
# 1. Create assigned number of files in ZFS filesystem as vdevs
# 2. Creating a new pool based on the vdevs should get success
# 3. Fill in the filesystem and create a partially writen file as vdev
# 4. Add the new file into vdevs list and create a pool
# 5. Creating a storage pool with the new vdevs list should be failed.
#

verify_runnable "global"

function cleanup
{
    typeset pool=""

    for pool in foo $TESTPOOL2 $TESTPOOL1; do
        poolexists $pool && \
            destroy_pool $pool
    done

    if datasetexists $TESTPOOL/$TESTFS; then
        log_must $ZFS destroy -f $TESTPOOL/$TESTFS
    fi

    if poolexists $TESTPOOL; then
        destroy_pool $TESTPOOL
    fi

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

    partition_disk $SIZE $disk 6
}

#
# Create a pool and fs on the assigned disk, and dynamically create large
# numbers of files as vdevs.(the default value is <VDEVS_NUM>)
#

function setup_vdevs #<disk>
{
    typeset disk=$1
    typeset -l largest_num=0
    typeset -l slice_size=0
    typeset vdev=""


    #
    # Get disk size for zfs filesystem
    #
    create_pool foo $disk
    log_must $ZFS create foo/fs
    typeset -l fs_size=$(get_prop "available" foo/fs)
    destroy_pool foo

    (( largest_num = fs_size / (1024 * 1024 * ${POOL_MINSIZE}) ))
    if (( largest_num < $VDEVS_NUM )); then
        #minus $largest_num/$MD_OVERHEAD to leave space for metadata
        (( vdevs_num=largest_num - largest_num/$MD_OVERHEAD ))
        file_size=$POOL_MINSIZE
        vdev=$disk
    else
        vdevs_num=$VDEVS_NUM
        (( file_size = fs_size / \
         (1024 * 1024 * (vdevs_num + vdevs_num/$MD_OVERHEAD)) ))
        if (( file_size > FILE_SIZE )); then
            # If file_size too large, the time cost will increase so
                        # we limit the file_size to $FILE_SIZE, and thus the
            # total time spent on creating file can be controlled
            # within the timeout.
            file_size=$FILE_SIZE
        fi
        # Add $vdevs_num/$MD_OVERHEAD to provide enough space for
        # metadata
        (( slice_size = file_size * (vdevs_num + \
            vdevs_num/$MD_OVERHEAD) ))
        set_partition 0 "" ${slice_size}m $disk
        vdev=${disk}s0
        fi

    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

    typeset -l count=0
    typeset PIDLIST=""
    while (( count < vdevs_num )); do
        $MKFILE ${file_size}m ${TESTDIR}/file.$count &
        PIDLIST="$PIDLIST $!"
        vdevs_list="$vdevs_list ${TESTDIR}/file.$count"
        (( count = count + 1 ))
    done

    # wait all mkfiles to finish
        wait $PIDLIST
        if (( $? != 0 )); then
                log_fail "create vdevs failed."
        fi

        return 0
}

log_assert " 'zpool create [-f]' can create a storage pool with large " \
    "numbers of vdevs without any errors."
log_onexit cleanup

if [[ -n $DISK ]]; then
        disk=$DISK
else
        disk=$DISK0
fi

log_note "Create storage pool with number of $VDEVS_NUM file vdevs should " \
    "succeed."
vdevs_list=""
vdevs_num=$VDEVS_NUM
file_size=$FILE_SIZE

setup_vdevs $disk
create_pool $TESTPOOL1 $vdevs_list

if poolexists $TESTPOOL1; then
    destroy_pool $TESTPOOL1
else
    log_fail " Creating pool with large numbers of file-vdevs fail."
fi

log_note "Creating storage pool with partially written file as vdev should " \
    "fail."

left_space=$(get_prop "available" $TESTPOOL/$TESTFS)
# Count the broken file size. make sure it should be greater than $left_space
# so, here, we plus a number -- $file_size, this number can be any other number.
(( file_size = left_space / (1024 * 1024) + file_size ))
log_mustnot $MKFILE ${file_size}m ${TESTDIR}/broken_file
vdevs_list="$vdevs_list ${TESTDIR}/broken_file"

log_mustnot $ZPOOL create -f $TESTPOOL2 $vdevs_list

log_pass "'zpool create [-f]' with $vdevs_num vdevs success."