1 files changed, 108 insertions, 1 deletions
diff --git a/test/shell/lvconvert-raid.sh b/test/shell/lvconvert-raid.sh
index c63c1415..c62aee52 100644
--- a/test/shell/lvconvert-raid.sh
+++ b/test/shell/lvconvert-raid.sh
@@ -11,12 +11,23 @@
 
 . lib/test
 
+get_image_pvs() {
+	local d
+	local images=""
+
+	for d in `ls /dev/mapper/${1}-${2}_?image_*`; do
+		images="$images `basename $d | sed s:-:/:`"
+	done
+	lvs --noheadings -a -o devices $images | sed s/\(.\)//
+}
+
 ########################################################
 # MAIN
 ########################################################
 aux target_at_least dm-raid 1 1 0 || skip
 
-aux prepare_pvs 5 80
+# 9 PVs needed for RAID10 testing (3-stripes/2-mirror - replacing 3 devs)
+aux prepare_pvs 9 80
 vgcreate -c n -s 256k $vg $(cat DEVICES)
 
 ###########################################
@@ -132,3 +143,99 @@ for i in 1 2 3 ; do
 	lvconvert --type raid1 $vg/$lv1
 	lvremove -ff $vg
 done
+
+###########################################
+# Device Replacement Testing
+###########################################
+# RAID1: Replace up to n-1 devices - trying different combinations
+# Test for 2-way to 4-way RAID1 LVs
+for i in {1..3}; do
+	lvcreate --type raid1 -m $i -l 2 -n $lv1 $vg
+
+	for j in $(seq $(($i + 1))); do # The number of devs to replace at once
+	for o in $(seq 0 $i); do        # The offset into the device list
+		replace=""
+
+		devices=( $(get_image_pvs $vg $lv1) )
+
+		for k in $(seq $j); do
+			index=$((($k + $o) % ($i + 1)))
+			replace="$replace --replace ${devices[$index]}"
+		done
+		aux wait_for_sync $vg $lv1
+
+		if [ $j -ge $((i + 1)) ]; then
+			# Can't replace all at once.
+			not lvconvert $replace $vg/$lv1
+		else
+			lvconvert $replace $vg/$lv1
+		fi
+	done
+	done
+
+	lvremove -ff $vg
+done
+
+# RAID 4/5/6 (can replace up to 'parity' devices)
+for i in 4 5 6; do
+	lvcreate --type raid$i -i 3 -l 3 -n $lv1 $vg
+
+	if [ $i -eq 6 ]; then
+		dev_cnt=5
+		limit=2
+	else
+		dev_cnt=4
+		limit=1
+	fi
+
+	for j in {1..3}; do
+	for o in $(seq 0 $i); do
+		replace=""
+
+		devices=( $(get_image_pvs $vg $lv1) )
+
+		for k in $(seq $j); do
+			index=$((($k + $o) % $dev_cnt))
+			replace="$replace --replace ${devices[$index]}"
+		done
+		aux wait_for_sync $vg $lv1
+
+		if [ $j -gt $limit ]; then
+			not lvconvert $replace $vg/$lv1
+		else
+			lvconvert $replace $vg/$lv1
+		fi
+	done
+	done
+
+	lvremove -ff $vg
+done
+
+# RAID10: Can replace 'copies - 1' devices from each stripe
+# Tests are run on 2-way mirror, 3-way stripe RAID10
+aux target_at_least dm-raid 1 3 1 || skip
+
+lvcreate --type raid10 -m 1 -i 3 -l 3 -n $lv1 $vg
+aux wait_for_sync $vg $lv1
+
+# Can replace any single device
+for i in $(get_image_pvs $vg $lv1); do
+	lvconvert --replace $i $vg/$lv1
+	aux wait_for_sync $vg $lv1
+done
+
+# Can't replace adjacent devices
+devices=( $(get_image_pvs $vg $lv1) )
+not lvconvert --replace ${devices[0]} --replace ${devices[1]} $vg/$lv1
+not lvconvert --replace ${devices[2]} --replace ${devices[3]} $vg/$lv1
+not lvconvert --replace ${devices[4]} --replace ${devices[5]} $vg/$lv1
+
+# Can replace non-adjacent devices
+for i in 0 1; do
+	lvconvert \
+		--replace ${devices[$i]} \
+		--replace ${devices[$(($i + 2))]} \
+		--replace ${devices[$(($i + 4))]} \
+		 $vg/$lv1
+	aux wait_for_sync $vg $lv1
+done