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-rw-r--r--tests/runfiles/linux.run14
-rw-r--r--tests/zfs-tests/include/libtest.shlib57
-rw-r--r--tests/zfs-tests/tests/functional/Makefile.am1
-rwxr-xr-xtests/zfs-tests/tests/functional/bootfs/bootfs_001_pos.ksh4
-rwxr-xr-xtests/zfs-tests/tests/functional/bootfs/bootfs_002_neg.ksh4
-rw-r--r--tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg4
-rwxr-xr-xtests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh21
-rw-r--r--tests/zfs-tests/tests/functional/removal/Makefile.am32
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/cleanup.ksh23
-rw-r--r--tests/zfs-tests/tests/functional/removal/removal.kshlib158
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_all_vdev.ksh39
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_check_space.ksh44
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_condense_export.ksh90
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_multiple_indirection.ksh93
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_remap.ksh123
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh77
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_reservation.ksh68
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_resume_export.ksh134
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_sanity.ksh39
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_add.ksh52
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_create_fs.ksh39
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_dedup.ksh49
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_export.ksh50
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_ganging.ksh47
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_remap.ksh38
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_remove.ksh38
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_scrub.ksh38
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_send.ksh40
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_send_recv.ksh41
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_snapshot.ksh39
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_write.ksh34
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/removal_with_zdb.ksh78
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/remove_mirror.ksh57
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/remove_mirror_sanity.ksh58
-rwxr-xr-xtests/zfs-tests/tests/functional/removal/remove_raidz.ksh50
35 files changed, 1769 insertions, 4 deletions
diff --git a/tests/runfiles/linux.run b/tests/runfiles/linux.run
index fb489d9fe..7b51ef47b 100644
--- a/tests/runfiles/linux.run
+++ b/tests/runfiles/linux.run
@@ -663,6 +663,20 @@ tests = ['refreserv_001_pos', 'refreserv_002_pos', 'refreserv_003_pos',
'refreserv_005_pos']
tags = ['functional', 'refreserv']
+[tests/functional/removal]
+pre =
+tests = ['removal_sanity', 'removal_all_vdev', 'removal_check_space',
+ 'removal_condense_export',
+ 'removal_multiple_indirection', 'removal_remap',
+ 'removal_remap_deadlists',
+ 'removal_with_add', 'removal_with_create_fs', 'removal_with_dedup',
+ 'removal_with_export', 'removal_with_ganging', 'removal_with_remap',
+ 'removal_with_remove', 'removal_with_scrub', 'removal_with_send',
+ 'removal_with_send_recv', 'removal_with_snapshot', 'removal_with_write',
+ 'removal_with_zdb', 'removal_resume_export',
+ 'remove_mirror', 'remove_mirror_sanity', 'remove_raidz']
+tags = ['functional', 'removal']
+
[tests/functional/rename_dirs]
tests = ['rename_dirs_001_pos']
tags = ['functional', 'rename_dirs']
diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 327da2b9f..00326dcdc 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -2076,6 +2076,8 @@ function check_pool_status # pool token keyword <verbose>
# is_pool_scrubbed - to check if the pool is scrub completed
# is_pool_scrub_stopped - to check if the pool is scrub stopped
# is_pool_scrub_paused - to check if the pool has scrub paused
+# is_pool_removing - to check if the pool is removing a vdev
+# is_pool_removed - to check if the pool is remove completed
#
function is_pool_resilvering #pool <verbose>
{
@@ -2113,6 +2115,18 @@ function is_pool_scrub_paused #pool <verbose>
return $?
}
+function is_pool_removing #pool
+{
+ check_pool_status "$1" "remove" "in progress since "
+ return $?
+}
+
+function is_pool_removed #pool
+{
+ check_pool_status "$1" "remove" "completed on"
+ return $?
+}
+
#
# Use create_pool()/destroy_pool() to clean up the information in
# in the given disk to avoid slice overlapping.
@@ -3422,3 +3436,46 @@ function get_tunable_impl
return 1
}
+
+#
+# Prints the current time in seconds since UNIX Epoch.
+#
+function current_epoch
+{
+ printf '%(%s)T'
+}
+
+#
+# Get decimal value of global uint32_t variable using mdb.
+#
+function mdb_get_uint32
+{
+ typeset variable=$1
+ typeset value
+
+ value=$(mdb -k -e "$variable/X | ::eval .=U")
+ if [[ $? -ne 0 ]]; then
+ log_fail "Failed to get value of '$variable' from mdb."
+ return 1
+ fi
+
+ echo $value
+ return 0
+}
+
+#
+# Set global uint32_t variable to a decimal value using mdb.
+#
+function mdb_set_uint32
+{
+ typeset variable=$1
+ typeset value=$2
+
+ mdb -kw -e "$variable/W 0t$value" > /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "Failed to set '$variable' to '$value' in mdb."
+ return 1
+ fi
+
+ return 0
+}
diff --git a/tests/zfs-tests/tests/functional/Makefile.am b/tests/zfs-tests/tests/functional/Makefile.am
index 4510d5112..a5bbb36e0 100644
--- a/tests/zfs-tests/tests/functional/Makefile.am
+++ b/tests/zfs-tests/tests/functional/Makefile.am
@@ -49,6 +49,7 @@ SUBDIRS = \
redundancy \
refquota \
refreserv \
+ removal \
rename_dirs \
replacement \
reservation \
diff --git a/tests/zfs-tests/tests/functional/bootfs/bootfs_001_pos.ksh b/tests/zfs-tests/tests/functional/bootfs/bootfs_001_pos.ksh
index 3f60d9eed..3e9357063 100755
--- a/tests/zfs-tests/tests/functional/bootfs/bootfs_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/bootfs/bootfs_001_pos.ksh
@@ -31,6 +31,10 @@
# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
#
+#
+# Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+#
+
. $STF_SUITE/include/libtest.shlib
#
diff --git a/tests/zfs-tests/tests/functional/bootfs/bootfs_002_neg.ksh b/tests/zfs-tests/tests/functional/bootfs/bootfs_002_neg.ksh
index 8ee48dba5..6a72bfcdc 100755
--- a/tests/zfs-tests/tests/functional/bootfs/bootfs_002_neg.ksh
+++ b/tests/zfs-tests/tests/functional/bootfs/bootfs_002_neg.ksh
@@ -31,6 +31,10 @@
# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
#
+#
+# Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+#
+
. $STF_SUITE/include/libtest.shlib
#
diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg b/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
index d5791372d..2ea82f0f6 100644
--- a/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
+++ b/tests/zfs-tests/tests/functional/cli_root/zpool_get/zpool_get.cfg
@@ -25,7 +25,7 @@
#
#
-# Copyright (c) 2013 by Delphix. All rights reserved.
+# Copyright (c) 2013, 2014 by Delphix. All rights reserved.
# Copyright 2016 Nexenta Systems, Inc. All rights reserved.
#
@@ -70,6 +70,8 @@ typeset -a properties=(
"feature@sha512"
"feature@skein"
"feature@edonr"
+ "feature@device_removal"
+ "feature@obsolete_counts"
)
# Additional properties added for Linux.
diff --git a/tests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh b/tests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh
index a6ef964ac..20b61da92 100755
--- a/tests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh
+++ b/tests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh
@@ -49,21 +49,29 @@ verify_runnable "both"
function cleanup
{
datasetexists $TEST_FS && log_must zfs destroy $TEST_FS
+ log_must set_tunable64 zfs_async_block_max_blocks 100000
}
log_onexit cleanup
log_assert "async_destroy can suspend and resume traversal"
-log_must zfs create -o recordsize=512 -o compression=off $TEST_FS
+log_must zfs create -o recordsize=1k -o compression=off $TEST_FS
-# Create enough blocks that it will take multiple TXGs to free them all.
+# Fill with 128,000 blocks.
log_must dd bs=1024k count=128 if=/dev/zero of=/$TEST_FS/file
+
+#
+# Decrease the max blocks to free each txg, so that freeing takes
+# long enough that we can observe it.
+#
+log_must set_tunable64 zfs_async_block_max_blocks 100
+
log_must sync
log_must zfs destroy $TEST_FS
#
# We monitor the freeing property, to verify we can see blocks being
-# freed while the suspend/resume code is exerciesd.
+# freed while the suspend/resume code is exercised.
#
t0=$SECONDS
count=0
@@ -75,6 +83,13 @@ done
[[ $count -eq 0 ]] && log_fail "Freeing property remained empty"
+#
+# After a bit, go back to allowing an unlimited amount of freeing
+# per txg.
+#
+sleep 10
+log_must set_tunable64 zfs_async_block_max_blocks 100000
+
# Wait for everything to be freed.
while [[ "0" != "$(zpool list -Ho freeing $TESTPOOL)" ]]; do
[[ $((SECONDS - t0)) -gt 180 ]] && \
diff --git a/tests/zfs-tests/tests/functional/removal/Makefile.am b/tests/zfs-tests/tests/functional/removal/Makefile.am
new file mode 100644
index 000000000..eac82a2f1
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/Makefile.am
@@ -0,0 +1,32 @@
+#
+# 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 (c) 2014, 2015 by Delphix. All rights reserved.
+#
+
+pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/removal
+
+dist_pkgdata_SCRIPTS = \
+ cleanup.ksh removal_all_vdev.ksh removal_check_space.ksh \
+ removal_condense_export.ksh removal_multiple_indirection.ksh \
+ removal_remap_deadlists.ksh removal_remap.ksh \
+ removal_reservation.ksh removal_resume_export.ksh \
+ removal_sanity.ksh removal_with_add.ksh removal_with_create_fs.ksh \
+ removal_with_dedup.ksh removal_with_export.ksh \
+ removal_with_ganging.ksh removal_with_remap.ksh \
+ removal_with_remove.ksh removal_with_scrub.ksh \
+ removal_with_send.ksh removal_with_send_recv.ksh \
+ removal_with_snapshot.ksh removal_with_write.ksh \
+ removal_with_zdb.ksh remove_mirror.ksh remove_mirror_sanity.ksh \
+ remove_raidz.ksh removal.kshlib
+
+pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/removal
diff --git a/tests/zfs-tests/tests/functional/removal/cleanup.ksh b/tests/zfs-tests/tests/functional/removal/cleanup.ksh
new file mode 100755
index 000000000..352a9fe10
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/cleanup.ksh
@@ -0,0 +1,23 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+
+default_cleanup
diff --git a/tests/zfs-tests/tests/functional/removal/removal.kshlib b/tests/zfs-tests/tests/functional/removal/removal.kshlib
new file mode 100644
index 000000000..54a2fb3bd
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal.kshlib
@@ -0,0 +1,158 @@
+#
+# CDDL HEADER START
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source. A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+export REMOVEDISK=${DISKS%% *}
+export NOTREMOVEDISK=${DISKS##* }
+
+#
+# Waits for the pool to finish a removal. If an optional callback is given,
+# execute it every 0.5s.
+#
+# Example usage:
+#
+# wait_for_removal $TESTPOOL dd if=/dev/urandom of=/$TESTPOOL/file count=1
+#
+function wait_for_removal # pool [callback args]
+{
+ typeset pool=$1
+ typeset callback=$2
+
+ [[ -n $callback ]] && shift 2
+
+ while is_pool_removing $pool; do
+ [[ -z $callback ]] || log_must $callback "$@"
+ sleep 0.5
+ done
+
+ #
+ # The pool state changes before the TXG finishes syncing; wait for
+ # the removal to be completed on disk.
+ #
+ sync_pool
+
+ log_must is_pool_removed $pool
+ return 0
+}
+
+function indirect_vdev_mapping_size # pool
+{
+ typeset pool=$1
+ zdb -P $pool | grep 'indirect vdev' | \
+ sed -E 's/.*\(([0-9]+) in memory\).*/\1/g'
+}
+
+function random_write # file write_size
+{
+ typeset file=$1
+ typeset block_size=$2
+ typeset file_size=$(stat -c%s $file 2>/dev/null)
+ typeset nblocks=$((file_size / block_size))
+
+ [[ -w $file ]] || return 1
+
+ dd if=/dev/urandom of=$file conv=notrunc \
+ bs=$block_size count=1 seek=$((RANDOM % nblocks)) >/dev/null 2>&1
+}
+
+_test_removal_with_operation_count=0
+function _test_removal_with_operation_cb # real_callback
+{
+ typeset real_callback=$1
+
+ $real_callback $_test_removal_with_operation_count || \
+ log_fail $real_callback "failed after" \
+ $_test_removal_with_operation_count "iterations"
+
+ (( _test_removal_with_operation_count++ ))
+
+ log_note "Callback called $((_test_removal_with_operation_count)) times"
+
+ return 0
+}
+
+function start_random_writer # file
+{
+ typeset file=$1
+ (
+ log_note "Starting writer for $file"
+ # This will fail when we destroy the pool.
+ while random_write $file $((2**12)); do
+ :
+ done
+ log_note "Stopping writer for $file"
+ ) &
+}
+
+#
+# The callback should be a function that takes as input the number of
+# iterations and the given arguments.
+#
+function test_removal_with_operation # callback [count]
+{
+ typeset operation=$1
+ typeset count=$2
+
+ [[ -n $count ]] || count=0
+
+ #
+ # To ensure that the removal takes a while, we fragment the pool
+ # by writing random blocks and continue to do during the removal.
+ #
+ log_must mkfile 1g $TESTDIR/$TESTFILE0
+ for i in $(seq $((2**10))); do
+ random_write $TESTDIR/$TESTFILE0 $((2**12)) || \
+ log_fail "Could not write to $TESTDIR/$TESTFILE0."
+ done
+ start_random_writer $TESTDIR/$TESTFILE0 1g
+ killpid=$!
+
+ log_must zpool remove $TESTPOOL $REMOVEDISK
+ log_must wait_for_removal $TESTPOOL \
+ _test_removal_with_operation_cb $operation
+ log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+ log_must zdb -cd $TESTPOOL
+
+ kill $killpid
+ wait
+
+ #
+ # We would love to assert that the callback happened *during* the
+ # removal, but we don't have the ability to be confident of that
+ # (via limiting bandwidth, etc.) yet. Instead, we try again.
+ #
+ if (( $_test_removal_with_operation_count <= 1 )); then
+ (( count <= 5 )) || log_fail "Attempted test too many times."
+
+ log_note "Callback only called" \
+ $_test_removal_with_operation_count \
+ "times, trying again."
+ default_setup_noexit "$DISKS"
+ test_removal_with_operation $operation $((count + 1))
+ fi
+}
+
+#
+# Kill the background job use by the test_removal_with_operation function.
+#
+function test_removal_with_operation_kill
+{
+ kill $killpid
+ wait $killpid
+ return 0
+}
diff --git a/tests/zfs-tests/tests/functional/removal/removal_all_vdev.ksh b/tests/zfs-tests/tests/functional/removal/removal_all_vdev.ksh
new file mode 100755
index 000000000..d3a594689
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_all_vdev.ksh
@@ -0,0 +1,39 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+for disk in $DISKS; do
+ if [[ "$disk" != "$REMOVEDISK" ]]; then
+ log_must zpool remove $TESTPOOL $disk
+ log_must wait_for_removal $TESTPOOL
+ log_mustnot vdevs_in_pool $TESTPOOL $disk
+ fi
+done
+
+log_must [ "x$(get_disklist $TESTPOOL)" = "x$REMOVEDISK" ]
+
+log_mustnot zpool remove $TESTPOOL $disk
+
+log_pass "Was not able to remove the last device in a pool."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_check_space.ksh b/tests/zfs-tests/tests/functional/removal/removal_check_space.ksh
new file mode 100755
index 000000000..dec692ada
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_check_space.ksh
@@ -0,0 +1,44 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+log_must mkfile $MINVDEVSIZE $TMPDIR/dsk1
+log_must mkfile $MINVDEVSIZE $TMPDIR/dsk2
+DISKS="$TMPDIR/dsk1 $TMPDIR/dsk2"
+REMOVEDISK=$TMPDIR/dsk1
+
+log_must default_setup_noexit "$DISKS"
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $DISKS
+}
+log_onexit cleanup
+
+# Write a little more than half the pool.
+log_must dd if=/dev/urandom of=/$TESTDIR/$TESTFILE0 bs=$((2**20)) \
+ count=$((MINVDEVSIZE / (1024 * 1024)))
+log_mustnot zpool remove $TESTPOOL $TMPDIR/dsk1
+
+log_pass "Removal will not succeed if insufficient space."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh b/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh
new file mode 100755
index 000000000..ad33caec8
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh
@@ -0,0 +1,90 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2015, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+if is_linux; then
+ log_unsupported "ZDB fails during concurrent pool activity."
+fi
+
+function reset
+{
+ log_must set_tunable64 zfs_condense_indirect_commit_entry_delay_ms 0
+ log_must set_tunable64 zfs_condense_min_mapping_bytes 131072
+ default_cleanup_noexit
+}
+
+default_setup_noexit "$DISKS" "true"
+log_onexit reset
+log_must set_tunable64 zfs_condense_indirect_commit_entry_delay_ms 1000
+log_must set_tunable64 zfs_condense_min_mapping_bytes 1
+
+log_must zfs set recordsize=512 $TESTPOOL/$TESTFS
+
+#
+# Create a large file so that we know some of the blocks will be on the
+# removed device, and hence eligible for remapping.
+#
+log_must dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=10
+
+#
+# Create a file in the other filesystem, which will not be remapped.
+#
+log_must dd if=/dev/urandom of=$TESTDIR1/file bs=1024k count=10
+
+#
+# Randomly rewrite some of blocks in the file so that there will be holes and
+# we will not be able to remap the entire file in a few huge chunks.
+#
+for i in {1..4096}; do
+ #
+ # We have to sync periodically so that all the writes don't end up in
+ # the same txg. If they were all in the same txg, only the last write
+ # would go through and we would not have as many allocations to
+ # fragment the file.
+ #
+ ((i % 100 > 0 )) || sync_pool $TESTPOOL || log_fail "Could not sync."
+ random_write $TESTDIR/file 512 || \
+ log_fail "Could not random write."
+done
+
+REMOVEDISKPATH=/dev
+case $REMOVEDISK in
+ /*)
+ REMOVEDISKPATH=$(dirname $REMOVEDISK)
+ ;;
+esac
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+
+log_must zfs remap $TESTPOOL/$TESTFS
+sync_pool $TESTPOOL
+sleep 5
+sync_pool $TESTPOOL
+log_must zpool export $TESTPOOL
+zdb -e -p $REMOVEDISKPATH $TESTPOOL | grep 'Condensing indirect vdev' || \
+ log_fail "Did not export during a condense."
+log_must zdb -e -p $REMOVEDISKPATH -cudi $TESTPOOL
+log_must zpool import $TESTPOOL
+
+log_pass "Pool can be exported in the middle of a condense."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_multiple_indirection.ksh b/tests/zfs-tests/tests/functional/removal/removal_multiple_indirection.ksh
new file mode 100755
index 000000000..1f71ec0e4
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_multiple_indirection.ksh
@@ -0,0 +1,93 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+#
+# DESCRIPTION:
+#
+# For device removal a file's contents should transfer
+# completely from one disk to another. That should remain
+# to be the case even if multiple levels of indirection
+# are introduced as we remove more and more devices.
+#
+# STRATEGY:
+#
+# 1. We create a file of size 128k and we save its contents
+# in a local variable.
+# 2. We set the limit of the maximum copied segment size of
+# removals to 32k, so during removal our 128k file will
+# be split to 4 blocks.
+# 3. We start removing disks and adding them back in a loop.
+# This way the file is moved around and introduces split
+# blocks.
+# 4. The loop itself tests that we don't have any problem
+# when removing many devices. Within the loop we test
+# that the files contents remain the same across transfers.
+#
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+log_must mkfile $(($MINVDEVSIZE * 2)) $TMPDIR/dsk1
+log_must mkfile $(($MINVDEVSIZE * 2)) $TMPDIR/dsk2
+DISKS="$TMPDIR/dsk1 $TMPDIR/dsk2"
+REMOVEDISK=$TMPDIR/dsk1
+
+log_must default_setup_noexit "$DISKS"
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $DISKS
+
+ # reset zfs_remove_max_segment to 1M
+ set_tunable32 zfs_remove_max_segment 1048576
+}
+
+log_onexit cleanup
+
+# set zfs_remove_max_segment to 32k
+log_must set_tunable32 zfs_remove_max_segment 32768
+
+log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE0 bs=128k count=1
+FILE_CONTENTS=`cat $TESTDIR/$TESTFILE0`
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+
+for i in {1..10}; do
+ log_must zpool remove $TESTPOOL $TMPDIR/dsk1
+ log_must wait_for_removal $TESTPOOL
+ log_mustnot vdevs_in_pool $TESTPOOL $TMPDIR/dsk1
+ log_must zpool add $TESTPOOL $TMPDIR/dsk1
+
+ log_must zinject -a
+ log_must dd if=$TESTDIR/$TESTFILE0 of=/dev/null
+ log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+
+ log_must zpool remove $TESTPOOL $TMPDIR/dsk2
+ log_must wait_for_removal $TESTPOOL
+ log_mustnot vdevs_in_pool $TESTPOOL $TMPDIR/dsk2
+ log_must zpool add $TESTPOOL $TMPDIR/dsk2
+
+ log_must zinject -a
+ log_must dd if=$TESTDIR/$TESTFILE0 of=/dev/null
+ log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+done
+
+log_pass "File contents transferred completely from one disk to another."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_remap.ksh b/tests/zfs-tests/tests/functional/removal/removal_remap.ksh
new file mode 100755
index 000000000..04d0c50e4
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_remap.ksh
@@ -0,0 +1,123 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2015, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+
+
+function cleanup
+{
+ set_tunable64 zfs_condense_min_mapping_bytes 131072
+ default_cleanup_noexit
+}
+
+log_onexit cleanup
+
+log_must set_tunable64 zfs_condense_min_mapping_bytes 1
+
+log_must zfs set recordsize=512 $TESTPOOL/$TESTFS
+
+#
+# Create a large file so that we know some of the blocks will be on the
+# removed device, and hence eligible for remapping.
+#
+log_must dd if=/dev/urandom of=$TESTDIR/file bs=$((2**12)) count=$((2**9))
+
+#
+# Randomly rewrite some of blocks in the file so that there will be holes and
+# we will not be able to remap the entire file in a few huge chunks.
+#
+for i in $(seq $((2**12))); do
+ #
+ # We have to sync periodically so that all the writes don't end up in
+ # the same txg. If they were all in the same txg, only the last write
+ # would go through and we would not have as many allocations to
+ # fragment the file.
+ #
+ ((i % 100 > 0 )) || sync_pool || log_fail "Could not sync."
+ random_write $TESTDIR/file $((2**9)) || \
+ log_fail "Could not random write."
+done
+
+#
+# Remap should quietly succeed as a noop before a removal.
+#
+log_must zfs remap $TESTPOOL/$TESTFS
+remaptxg_before=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
+(( $? == 0 )) || log_fail "Could not get remaptxg."
+[[ $remaptxg_before == "-" ]] || \
+ log_fail "remaptxg ($remaptxg_before) had value before a removal"
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+
+#
+# remaptxg should not be set if we haven't done a remap.
+#
+remaptxg_before=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
+(( $? == 0 )) || log_fail "Could not get remaptxg."
+[[ $remaptxg_before == "-" ]] || \
+ log_fail "remaptxg ($remaptxg_before) had value before a removal"
+
+mapping_size_before=$(indirect_vdev_mapping_size $TESTPOOL)
+log_must zfs remap $TESTPOOL/$TESTFS
+
+# Try to wait for a condense to finish.
+for i in {1..5}; do
+ sleep 5
+ sync_pool
+done
+mapping_size_after=$(indirect_vdev_mapping_size $TESTPOOL)
+
+#
+# After the remap, there should not be very many blocks referenced. The reason
+# why our threshold is as high as 512 is because our ratio of metadata to
+# user data is relatively high, with only 64M of user data on the file system.
+#
+(( mapping_size_after < mapping_size_before )) || \
+ log_fail "Mapping size did not decrease after remap: " \
+ "$mapping_size_before before to $mapping_size_after after."
+(( mapping_size_after < 512 )) || \
+ log_fail "Mapping size not small enough after remap: " \
+ "$mapping_size_before before to $mapping_size_after after."
+
+#
+# After a remap, the remaptxg should be set to a non-zero value.
+#
+remaptxg_after=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
+(( $? == 0 )) || log_fail "Could not get remaptxg."
+log_note "remap txg after remap is $remaptxg_after"
+(( remaptxg_after > 0 )) || log_fail "remaptxg not increased"
+
+#
+# Remap should quietly succeed as a noop if there have been no removals since
+# the last remap.
+#
+log_must zfs remap $TESTPOOL/$TESTFS
+remaptxg_again=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
+(( $? == 0 )) || log_fail "Could not get remaptxg."
+log_note "remap txg after second remap is $remaptxg_again"
+(( remaptxg_again == remaptxg_after )) || \
+ log_fail "remap not noop if there has been no removal"
+
+log_pass "Remapping a fs caused mapping size to decrease."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh b/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh
new file mode 100755
index 000000000..5b5be66b3
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh
@@ -0,0 +1,77 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2015, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+log_must dd if=/dev/zero of=$TESTDIR/file bs=1024k count=300
+
+log_must zfs snapshot $TESTPOOL/$TESTFS@snap-pre1
+log_must dd if=/dev/zero of=$TESTDIR/file bs=1024k count=100 \
+ conv=notrunc seek=100
+
+log_must zfs snapshot $TESTPOOL/$TESTFS@snap-pre2
+log_must dd if=/dev/zero of=$TESTDIR/file bs=1024k count=100 \
+ conv=notrunc seek=200
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+if is_linux; then
+ log_must wait_for_removal $TESTPOOL
+else
+ log_must wait_for_removal $TESTPOOL zdb -cd $TESTPOOL
+fi
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+log_must zdb -cd $TESTPOOL
+
+log_must zfs remap $TESTPOOL/$TESTFS
+log_must zdb -cd $TESTPOOL
+
+log_must zfs snapshot $TESTPOOL/$TESTFS@snap-post3
+log_must zdb -cd $TESTPOOL
+
+log_must zfs snapshot $TESTPOOL/$TESTFS@snap-post4
+log_must zdb -cd $TESTPOOL
+
+#
+# Test case where block is moved from remap deadlist: blocks born before
+# snap-pre2 will be obsoleted.
+#
+log_must zfs destroy $TESTPOOL/$TESTFS@snap-pre2
+log_must zdb -cd $TESTPOOL
+
+#
+# Test case where we merge remap deadlists: blocks before snap-pre1 will
+# need to go on snap-post4's deadlist.
+#
+log_must zfs destroy $TESTPOOL/$TESTFS@snap-post3
+log_must zdb -cd $TESTPOOL
+
+log_must zfs destroy $TESTPOOL/$TESTFS@snap-post4
+
+#
+# Test rollback.
+#
+log_must zfs rollback $TESTPOOL/$TESTFS@snap-pre1
+log_must zfs destroy $TESTPOOL/$TESTFS@snap-pre1
+
+log_pass "Remove and remap works with snapshots and deadlists."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_reservation.ksh b/tests/zfs-tests/tests/functional/removal/removal_reservation.ksh
new file mode 100755
index 000000000..b57f1777c
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_reservation.ksh
@@ -0,0 +1,68 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+log_must mkfile 1g $TMPDIR/dsk1
+log_must mkfile 1g $TMPDIR/dsk2
+DISKS="$TMPDIR/dsk1 $TMPDIR/dsk2"
+REMOVEDISK=$TMPDIR/dsk1
+
+default_setup_noexit "$DISKS"
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $DISKS
+}
+
+log_onexit cleanup
+
+log_must zfs set compression=off $TESTPOOL/$TESTFS
+
+# Write a little under half the pool.
+log_must file_write -o create -f $TESTDIR/$TESTFILE1 -b $((2**20)) -c $((2**9))
+
+#
+# Start a writing thread to ensure the removal will take a while.
+# This will automatically die when we destroy the pool.
+#
+start_random_writer $TESTDIR/$TESTFILE1
+
+callback_count=0
+function callback
+{
+ (( callback_count++ ))
+ (( callback_count == 1 )) || return 0
+
+ # Attempt to write more than the new pool will be able to handle.
+ file_write -o create -f $TESTDIR/$TESTFILE2 -b $((2**20)) -c $((2**9))
+ zret=$?
+ ENOSPC=28
+ log_note "file_write returned $zret"
+ (( $zret == $ENOSPC )) || log_fail "Did not get ENOSPC during removal."
+}
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL callback
+
+log_pass "Removal properly sets reservation."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_resume_export.ksh b/tests/zfs-tests/tests/functional/removal/removal_resume_export.ksh
new file mode 100755
index 000000000..5cecfdb5d
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_resume_export.ksh
@@ -0,0 +1,134 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2017 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+#
+# DESCRIPTION:
+#
+# When a pool has an ongoing removal and it is exported ZFS
+# suspends the removal thread beforehand. This test ensures
+# that ZFS restarts the removal thread if the export fails
+# for some reason.
+#
+# STRATEGY:
+#
+# 1. Create a pool with one vdev and do some writes on it.
+# 2. Add a new vdev to the pool and start the removal of
+# the first vdev.
+# 3. Inject a fault in the pool and attempt to export (it
+# should fail).
+# 4. After the export fails ensure that the removal thread
+# was restarted (i.e. the svr_thread field in the spa
+# should be non-zero).
+#
+
+
+function cleanup
+{
+ log_must zinject -c all
+ default_cleanup_noexit
+}
+
+function ensure_thread_running # spa_address
+{
+ if is_linux; then
+ typeset TRIES=0
+ typeset THREAD_PID
+ while [[ $TRIES -lt 10 ]]; do
+ THREAD_PID=$(pgrep spa_vdev_remove)
+ [[ "$THREAD_PID" ]] && break
+ sleep 0.1
+ (( TRIES = TRIES + 1 ))
+ done
+ [[ "$THREAD_PID" ]] || \
+ log_fail "removal thread is not running TRIES=$TRIES THREAD_PID=$THREAD_PID"
+ else
+ #
+ # Try to get the address of the removal thread.
+ #
+ typeset THREAD_ADDR=$(mdb -ke "$1::print \
+ spa_t spa_vdev_removal->svr_thread" | awk "{print \$3}")
+
+ #
+ # if address is NULL it means that the thread is
+ # not running.
+ #
+ [[ "$THREAD_ADDR" = 0 ]] && \
+ log_fail "removal thread is not running"
+ fi
+
+ return 0
+}
+
+log_onexit cleanup
+
+#
+# Create pool with one disk.
+#
+log_must default_setup_noexit "$REMOVEDISK"
+
+#
+# Save address of SPA in memory so you can check with mdb
+# if the removal thread is running.
+#
+is_linux || typeset SPA_ADDR=$(mdb -ke "::spa" | awk "/$TESTPOOL/ {print \$1}")
+
+#
+# Turn off compression to raise capacity as much as possible
+# for the little time that this test runs.
+#
+log_must zfs set compression=off $TESTPOOL/$TESTFS
+
+#
+# Write some data that will be evacuated from the device when
+# we start the removal.
+#
+log_must dd if=/dev/urandom of=$TESTDIR/$TESTFILE0 bs=64M count=32
+
+#
+# Add second device where all the data will be evacuated.
+#
+log_must zpool add -f $TESTPOOL $NOTREMOVEDISK
+
+#
+# Start removal.
+#
+log_must zpool remove $TESTPOOL $REMOVEDISK
+
+#
+# Inject an error so export fails after having just suspended
+# the removal thread. [spa_inject_ref gets incremented]
+#
+log_must zinject -d $REMOVEDISK -D 10:1 $TESTPOOL
+
+log_must ensure_thread_running $SPA_ADDR
+
+#
+# Because of the above error export should fail.
+#
+log_mustnot zpool export $TESTPOOL
+
+log_must ensure_thread_running $SPA_ADDR
+
+wait_for_removal $TESTPOOL
+
+log_pass "Device removal thread resumes after failed export"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_sanity.ksh b/tests/zfs-tests/tests/functional/removal/removal_sanity.ksh
new file mode 100755
index 000000000..f7f69c7d2
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_sanity.ksh
@@ -0,0 +1,39 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+FILE_CONTENTS="Leeloo Dallas mul-ti-pass."
+
+echo $FILE_CONTENTS >$TESTDIR/$TESTFILE0
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+
+log_must dd if=/$TESTDIR/$TESTFILE0 of=/dev/null
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+
+log_pass "Removed device not in use after removal."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_add.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_add.ksh
new file mode 100755
index 000000000..e719a5ecc
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_add.ksh
@@ -0,0 +1,52 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+log_must mkfile 1g $TMPDIR/dsk1
+log_must mkfile 1g $TMPDIR/dsk2
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $TMPDIR/dsk1 $TMPDIR/dsk2
+}
+
+default_setup_noexit "$DISKS"
+log_onexit cleanup
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ log_mustnot zpool attach -f $TESTPOOL $TMPDIR/dsk1 $TMPDIR/dsk2
+ log_mustnot zpool add -f $TESTPOOL \
+ raidz $TMPDIR/dsk1 $TMPDIR/dsk2
+ log_must zpool add -f $TESTPOOL $TMPDIR/dsk1
+ fi
+
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Removal can only add normal disks."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_create_fs.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_create_fs.ksh
new file mode 100755
index 000000000..403428290
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_create_fs.ksh
@@ -0,0 +1,39 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ log_must zfs create $TESTPOOL/$TESTFS1
+ log_must zfs destroy $TESTPOOL/$TESTFS1
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can write to device during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_dedup.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_dedup.ksh
new file mode 100755
index 000000000..4b6c94a80
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_dedup.ksh
@@ -0,0 +1,49 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+log_must zfs set dedup=on $TESTPOOL
+
+FILE_CONTENTS="Leeloo Dallas mul-ti-pass."
+
+echo $FILE_CONTENTS >$TESTDIR/$TESTFILE0
+echo $FILE_CONTENTS >$TESTDIR/$TESTFILE1
+echo $FILE_CONTENTS >$TESTDIR/$TESTFILE2
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+log_must [ "x$(cat $TESTDIR/$TESTFILE1)" = "x$FILE_CONTENTS" ]
+log_must [ "x$(cat $TESTDIR/$TESTFILE2)" = "x$FILE_CONTENTS" ]
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+
+log_must dd if=/$TESTDIR/$TESTFILE0 of=/dev/null
+log_must dd if=/$TESTDIR/$TESTFILE1 of=/dev/null
+log_must dd if=/$TESTDIR/$TESTFILE2 of=/dev/null
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+log_must [ "x$(cat $TESTDIR/$TESTFILE1)" = "x$FILE_CONTENTS" ]
+log_must [ "x$(cat $TESTDIR/$TESTFILE2)" = "x$FILE_CONTENTS" ]
+
+log_pass "Removed device not in use after removal."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_export.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_export.ksh
new file mode 100755
index 000000000..38d6d53d4
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_export.ksh
@@ -0,0 +1,50 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback # count
+{
+ typeset count=$1
+ if ((count == 0)); then
+ is_linux && test_removal_with_operation_kill
+ log_must zpool export $TESTPOOL
+
+ #
+ # We are concurrently starting dd processes that will
+ # create files in $TESTDIR. These could cause the import
+ # to fail because it can't mount on the filesystem on a
+ # non-empty directory. Therefore, remove the directory
+ # so that the dd process will fail.
+ #
+ log_must rm -rf $TESTDIR
+
+ log_must zpool import $TESTPOOL
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can export and import pool during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_ganging.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_ganging.ksh
new file mode 100755
index 000000000..cfbca89bd
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_ganging.ksh
@@ -0,0 +1,47 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+function cleanup
+{
+ log_must set_tunable64 metaslab_gang_bang $((2**17 + 1))
+ default_cleanup_noexit
+}
+
+default_setup_noexit "$DISKS"
+log_must set_tunable64 metaslab_gang_bang $((2**12))
+log_onexit cleanup
+
+FILE_CONTENTS="Leeloo Dallas mul-ti-pass."
+
+echo $FILE_CONTENTS >$TESTDIR/$TESTFILE0
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+log_must file_write -o create -f $TESTDIR/$TESTFILE1 -b $((2**20)) -c $((2**7))
+
+log_must zpool remove $TESTPOOL $REMOVEDISK
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
+
+log_must dd if=/$TESTDIR/$TESTFILE0 of=/dev/null
+log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+
+log_pass "Removed device not in use after removal."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh
new file mode 100755
index 000000000..63050a647
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh
@@ -0,0 +1,38 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2015, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ zfs remap $TESTPOOL/$TESTFS
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can remap a filesystem during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_remove.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_remove.ksh
new file mode 100755
index 000000000..fef7c293b
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_remove.ksh
@@ -0,0 +1,38 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback # count
+{
+ typeset count=$1
+ if ((count == 0)); then
+ log_mustnot zpool remove $TESTPOOL $NOTREMOVEDISK
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Cannot remove a disk during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_scrub.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_scrub.ksh
new file mode 100755
index 000000000..33eb41bf2
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_scrub.ksh
@@ -0,0 +1,38 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ log_must zpool scrub $TESTPOOL
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can use scrub during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_send.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_send.ksh
new file mode 100755
index 000000000..c5a92505c
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_send.ksh
@@ -0,0 +1,40 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ create_snapshot $TESTPOOL/$TESTFS $TESTSNAP
+ log_must ksh -c \
+ "zfs send $TESTPOOL/$TESTFS@$TESTSNAP >/dev/null"
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can use send during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_send_recv.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_send_recv.ksh
new file mode 100755
index 000000000..c7d1c8a89
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_send_recv.ksh
@@ -0,0 +1,41 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ create_snapshot $TESTPOOL/$TESTFS $TESTSNAP
+ log_must ksh -o pipefail -c \
+ "zfs send $TESTPOOL/$TESTFS@$TESTSNAP | \
+ zfs recv $TESTPOOL/$TESTFS1"
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can send and recv during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_snapshot.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_snapshot.ksh
new file mode 100755
index 000000000..7fe36a94f
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_snapshot.ksh
@@ -0,0 +1,39 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ typeset count=$1
+ if ((count == 0)); then
+ create_snapshot $TESTPOOL/$TESTFS $TESTSNAP
+ destroy_snapshot $TESTPOOL/$TESTFS@$TESTSNAP
+ fi
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can create and destroy snapshot during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_write.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_write.ksh
new file mode 100755
index 000000000..5d37b903e
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_write.ksh
@@ -0,0 +1,34 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+default_setup_noexit "$DISKS"
+log_onexit default_cleanup_noexit
+
+function callback
+{
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_pass "Can write to device during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_zdb.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_zdb.ksh
new file mode 100755
index 000000000..1f609273c
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/removal_with_zdb.ksh
@@ -0,0 +1,78 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+zdbout=${TMPDIR:-$TEST_BASE_DIR}/zdbout.$$
+
+if is_linux; then
+ log_unsupported "ZDB fails during concurrent pool activity."
+fi
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $zdbout
+}
+
+default_setup_noexit "$DISKS"
+log_onexit cleanup
+FIRSTDISK=${DISKS%% *}
+
+DISKPATH=/dev
+case $FIRSTDISK in
+ /*)
+ DISKPATH=$(dirname $FIRSTDISK)
+ ;;
+esac
+
+function callback
+{
+ typeset count=$1
+ typeset zdbstat
+
+ log_must zpool set cachefile=none $TESTPOOL
+ zdb -e -p $DISKPATH -cudi $TESTPOOL >$zdbout 2>&1
+ zdbstat=$?
+ log_must zpool set cachefile= $TESTPOOL
+ if [[ $zdbstat != 0 ]]; then
+ log_note "Output: zdb -e -p $DISKPATH -cudi $TESTPOOL"
+ cat $zdbout
+ log_note "zdb detected errors with exist status $zdbstat."
+ fi
+ log_note "zdb -e -p $DISKPATH -cudi $TESTPOOL >zdbout 2>&1"
+ return 0
+}
+
+test_removal_with_operation callback
+
+log_must zpool set cachefile=none $TESTPOOL
+zdb -e -p $DISKPATH -cudi $TESTPOOL >$zdbout 2>&1
+zdbstat=$?
+log_must zpool set cachefile= $TESTPOOL
+if [[ $zdbstat != 0 ]]; then
+ log_note "Output following removal: zdb -cudi $TESTPOOL"
+ cat $zdbout
+ log_fail "zdb detected errors with exit status " \
+ "$zdbstat following removal."
+fi
+
+log_pass "Can use zdb during removal"
diff --git a/tests/zfs-tests/tests/functional/removal/remove_mirror.ksh b/tests/zfs-tests/tests/functional/removal/remove_mirror.ksh
new file mode 100755
index 000000000..06335b703
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/remove_mirror.ksh
@@ -0,0 +1,57 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2018 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+
+DISK1="$TMPDIR/dsk1"
+DISK2="$TMPDIR/dsk2"
+DISK3="$TMPDIR/dsk3"
+DISKS="$DISK1 $DISK2 $DISK3"
+
+log_must mkfile $(($MINVDEVSIZE * 2)) $DISK1
+log_must mkfile $(($MINVDEVSIZE * 2)) $DISK2
+log_must mkfile $(($MINVDEVSIZE * 2)) $DISK3
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $DISKS
+}
+
+log_must default_setup_noexit "$DISK1 mirror $DISK2 $DISK3"
+log_onexit cleanup
+
+# Attempt to remove the non mirrored disk.
+log_must zpool remove $TESTPOOL $DISK1
+
+# Attempt to remove one of the disks in the mirror.
+log_mustnot zpool remove $TESTPOOL $DISK2
+log_must wait_for_removal $TESTPOOL
+
+# Add back the first disk.
+log_must zpool add $TESTPOOL $DISK1
+
+# Now attempt to remove the mirror.
+log_must zpool remove $TESTPOOL mirror-1
+
+log_pass "Removal will succeed for top level vdev(s)."
diff --git a/tests/zfs-tests/tests/functional/removal/remove_mirror_sanity.ksh b/tests/zfs-tests/tests/functional/removal/remove_mirror_sanity.ksh
new file mode 100755
index 000000000..fa3fb5de7
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/remove_mirror_sanity.ksh
@@ -0,0 +1,58 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2017 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+DISK1=$(echo $DISKS | awk '{print $1}')
+DISK2=$(echo $DISKS | awk '{print $2}')
+DISK3=$(echo $DISKS | awk '{print $3}')
+DISKS="$DISK1 $DISK2 $DISK3"
+
+log_must default_setup_noexit "$DISK1 mirror $DISK2 $DISK3"
+log_onexit default_cleanup_noexit
+
+WORDS_FILE1="/usr/dict/words"
+WORDS_FILE2="/usr/share/dict/words"
+FILE_CONTENTS="Leeloo Dallas mul-ti-pass."
+
+if [[ -f $WORDS_FILE1 ]]; then
+ log_must cp $WORDS_FILE1 $TESTDIR
+elif [[ -f $WORDS_FILE2 ]]; then
+ log_must cp $WORDS_FILE2 $TESTDIR
+else
+ echo $FILE_CONTENTS >$TESTDIR/$TESTFILE0
+ log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+fi
+
+log_must zpool remove $TESTPOOL mirror-1
+log_must wait_for_removal $TESTPOOL
+log_mustnot vdevs_in_pool $TESTPOOL mirror-1
+
+if [[ -f $WORDS_FILE1 ]]; then
+ log_must diff $WORDS_FILE1 $TESTDIR/words
+elif [[ -f $WORDS_FILE2 ]]; then
+ log_must diff $WORDS_FILE2 $TESTDIR/words
+else
+ log_must dd if=/$TESTDIR/$TESTFILE0 of=/dev/null
+ log_must [ "x$(cat $TESTDIR/$TESTFILE0)" = "x$FILE_CONTENTS" ]
+fi
+
+log_pass "Removed top-level mirror device not in use after removal."
diff --git a/tests/zfs-tests/tests/functional/removal/remove_raidz.ksh b/tests/zfs-tests/tests/functional/removal/remove_raidz.ksh
new file mode 100755
index 000000000..98d4536a1
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/removal/remove_raidz.ksh
@@ -0,0 +1,50 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# 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.
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright (c) 2014, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/removal/removal.kshlib
+
+TMPDIR=${TMPDIR:-$TEST_BASE_DIR}
+log_must mkfile $MINVDEVSIZE $TMPDIR/dsk1
+log_must mkfile $MINVDEVSIZE $TMPDIR/dsk2
+log_must mkfile $MINVDEVSIZE $TMPDIR/dsk3
+DISKS1="$TMPDIR/dsk1"
+DISKS2="$TMPDIR/dsk2 $TMPDIR/dsk3"
+DISKS="$DISKS1 $DISKS2"
+
+function cleanup
+{
+ default_cleanup_noexit
+ log_must rm -f $DISKS
+}
+
+log_must default_setup_noexit "$DISKS1 raidz $DISKS2"
+log_onexit cleanup
+
+# Attempt to remove the non raidz disk.
+log_mustnot zpool remove $TESTPOOL $TMPDIR/dsk1
+
+# Attempt to remove one of the raidz disks.
+log_mustnot zpool remove $TESTPOOL $TMPDIR/dsk2
+
+# Attempt to remove the raidz.
+log_mustnot zpool remove $TESTPOOL raidz1-1
+
+log_pass "Removal will not succeed if there is a top level mirror."