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zpool: allow split with whole-disk devices

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This change allows 'zpool split' to work with whole-disk devices and
updates the ZFS Test Suite with a new script to exercise this
functionality.

Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6643 
Closes #8133
This commit is contained in:
LOLi 2018-11-20 19:22:53 +01:00 committed by Brian Behlendorf
parent bd9c195805
commit 0cd5c941d0
11 changed files with 116 additions and 4 deletions
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2
cmd/zpool/zpool_vdev.c
View File

@ -1286,7 +1286,7 @@ make_disks(zpool_handle_t *zhp, nvlist_t *nv)
* symbolic link will be removed, partition table created,
* and then block until udev creates the new link.
*/
if (!is_exclusive || !is_spare(NULL, udevpath)) {
if (!is_exclusive && !is_spare(NULL, udevpath)) {
char *devnode = strrchr(devpath, '/') + 1;
ret = strncmp(udevpath, UDISK_ROOT, strlen(UDISK_ROOT));

2
tests/runfiles/linux.run
View File

@ -440,7 +440,7 @@ tags = ['functional', 'cli_root', 'zpool_set']
[tests/functional/cli_root/zpool_split]
tests = ['zpool_split_cliargs', 'zpool_split_devices',
'zpool_split_encryption', 'zpool_split_props', 'zpool_split_vdevs',
'zpool_split_resilver']
'zpool_split_resilver', 'zpool_split_wholedisk']
tags = ['functional', 'cli_root', 'zpool_split']
[tests/functional/cli_root/zpool_status]

6
tests/zfs-tests/tests/functional/cli_root/zpool_split/Makefile.am
View File

@ -10,4 +10,8 @@ dist_pkgdata_SCRIPTS = \
zpool_split_encryption.ksh \
zpool_split_props.ksh \
zpool_split_vdevs.ksh \
zpool_split_resilver.ksh
zpool_split_resilver.ksh \
zpool_split_wholedisk.ksh
dist_pkgdata_DATA = \
zpool_split.cfg

18
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split.cfg Normal file
View File

@ -0,0 +1,18 @@
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
#
export DISKSARRAY=$DISKS
export DISK_ARRAY_NUM=$(echo ${DISKS} | nawk '{print NF}')
set_device_dir

1
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_cliargs.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
#
# DESCRIPTION:

3
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_devices.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
#
# DESCRIPTION:
@ -91,7 +92,7 @@ do
# Verify "good" devices ended up in the new pool
log_must poolexists $TESTPOOL2
for filedev in ${gooddevs[$i]}; do
log_must check_vdev_state $TESTPOOL2 $filedev ""
log_must check_vdev_state $TESTPOOL2 $filedev "ONLINE"
done
cleanup
((i = i + 1))

1
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_encryption.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
#
# DESCRIPTION:

1
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_props.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
. $STF_SUITE/tests/functional/mmp/mmp.kshlib
#

1
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_resilver.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
#
# DESCRIPTION:

1
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_vdevs.ksh
View File

@ -15,6 +15,7 @@
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
. $STF_SUITE/include/math.shlib
#

84
tests/zfs-tests/tests/functional/cli_root/zpool_split/zpool_split_wholedisk.ksh Executable file
View File

@ -0,0 +1,84 @@
#!/bin/ksh -p
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_split/zpool_split.cfg
#
# DESCRIPTION:
# 'zpool split' should work with whole-disk devices.
#
# STRATEGY:
# 1. Create a mirror with a whole-disk device
# 2. Verify 'zpool split' works and successfully split the mirror
# 3. Cleanup and create the same mirror
# 4. Verify 'zpool split' using the other device
#
verify_runnable "both"
if is_linux; then
# Add one 512b spare device (4Kn would generate IO errors on replace)
# NOTE: must be larger than other "file" vdevs and minimum SPA devsize:
# add 32m of fudge
load_scsi_debug $(($SPA_MINDEVSIZE/1024/1024+32)) 1 1 1 '512b'
else
log_unsupported "scsi debug module unsupported"
fi
function cleanup
{
destroy_pool $TESTPOOL
destroy_pool $TESTPOOL2
unload_scsi_debug
rm -f "$FILE_DEVICE"
}
function setup_mirror
{
# NOTE: "-f" is required to create a mixed (file and disk device) mirror
log_must truncate -s $SPA_MINDEVSIZE $FILE_DEVICE
log_must zpool create -f $TESTPOOL mirror $FILE_DEVICE $DISK_DEVICE
# NOTE: verify disk is actually a "whole-disk" device
log_must test "$(zdb -PC $TESTPOOL | grep -c 'whole_disk: 1')" == 1
}
log_assert "'zpool split' should work with whole-disk devices"
log_onexit cleanup
FILE_DEVICE="$TEST_BASE_DIR/file-device"
DISK_DEVICE="$(get_debug_device)"
ALTROOT="$TEST_BASE_DIR/altroot-$TESTPOOL2"
# 1. Create a mirror with a whole-disk device
setup_mirror
# 2. Verify 'zpool split' works and successfully split the mirror
log_must zpool split -R "$ALTROOT" $TESTPOOL $TESTPOOL2 $DISK_DEVICE
log_must check_vdev_state $TESTPOOL $FILE_DEVICE "ONLINE"
log_must check_vdev_state $TESTPOOL2 $DISK_DEVICE "ONLINE"
# 3. Cleanup and create the same mirror
destroy_pool $TESTPOOL
destroy_pool $TESTPOOL2
setup_mirror
# 4. Verify 'zpool split' using the other device
log_must zpool split -R "$ALTROOT" $TESTPOOL $TESTPOOL2 $FILE_DEVICE
log_must check_vdev_state $TESTPOOL $DISK_DEVICE "ONLINE"
log_must check_vdev_state $TESTPOOL2 $FILE_DEVICE "ONLINE"
log_pass "'zpool split' works with whole-disk devices"