X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Ftests%2Fsanity-flr.sh;h=c268fdc25ea0a5d1e0bd167597554a020a7f95cd;hp=3df762b3dbe4b529e2df12a89bb17883b048c408;hb=9e25e70d78f3f5fdb7489f4f9841b0931927f10c;hpb=39da3c06275e04e2a6e7f055cb27ee9dff1ea576

diff --git a/lustre/tests/sanity-flr.sh b/lustre/tests/sanity-flr.sh
index 3df762b..c268fdc 100644
--- a/lustre/tests/sanity-flr.sh
+++ b/lustre/tests/sanity-flr.sh
@@ -10,30 +10,40 @@ ONLY=${ONLY:-"$*"}
 
 LUSTRE=${LUSTRE:-$(dirname $0)/..}
 . $LUSTRE/tests/test-framework.sh
-init_test_env $@
+init_test_env "$@"
 init_logging
 
 ALWAYS_EXCEPT="$SANITY_FLR_EXCEPT "
-# Bug number for skipped test:    LU-11381
-ALWAYS_EXCEPT+="                  201"
+# Bug number for skipped test:    LU-14818 LU-11381 LU-14765
+ALWAYS_EXCEPT+="                  6        201      44c "
 # UPDATE THE COMMENT ABOVE WITH BUG NUMBERS WHEN CHANGING ALWAYS_EXCEPT!
 
+# skip all tests for PPC until we can get sanity-pfl to pass
+if [[ $(uname -m) = ppc64 ]]; then
+	skip "Skip FLR testing for PPC clients"
+fi
+
+if [[ "$ost1_FSTYPE" == "zfs" ]]; then
+	# bug #:	LU-1941
+	ALWAYS_EXCEPT+=" 49a "
+fi
+
 build_test_filter
 
 [[ "$MDS1_VERSION" -ge $(version_code 2.10.56) ]] ||
 	skip "Need MDS version at least 2.10.56"
 
-[ $UID -eq 0 -a $RUNAS_ID -eq 0 ] &&
-	error "\$RUNAS_ID set to 0, but \$UID is also 0!"
-check_runas_id $RUNAS_ID $RUNAS_GID $RUNAS
-
 check_and_setup_lustre
 DIR=${DIR:-$MOUNT}
 assert_DIR
-
-assert_DIR
 rm -rf $DIR/[Rdfs][0-9]*
 
+[ $UID -eq 0 -a $RUNAS_ID -eq 0 ] &&
+	error "\$RUNAS_ID set to 0, but \$UID is also 0!"
+
+check_runas_id $RUNAS_ID $RUNAS_GID $RUNAS
+
+
 # global array to store mirror IDs
 declare -a mirror_array
 get_mirror_ids() {
@@ -368,7 +378,6 @@ test_0b() {
 	verify_comp_attr stripe-size $tf ${ids[1]} 4194304
 	verify_comp_attr stripe-count $tf ${ids[1]} 2
 	verify_comp_attr stripe-index $tf ${ids[1]} 2
-	verify_comp_attr pool $tf ${ids[1]} flash
 
 	# verify component ${ids[2]}
 	verify_comp_attr stripe-size $tf ${ids[2]} 16777216
@@ -440,7 +449,6 @@ test_0c() {
 		verify_comp_attr_with_default stripe-size $tf ${ids[$i]}
 		verify_comp_attr stripe-count $tf ${ids[$i]} 2
 		verify_comp_attr stripe-index $tf ${ids[$i]} 1
-		verify_comp_attr pool $tf ${ids[$i]} flash
 		verify_comp_extent $tf ${ids[$i]} 0 4194304
 	done
 
@@ -508,21 +516,24 @@ test_0d() {
 	# create a mirrored file and extend it
 	$LFS mirror create -N $tf-1 || error "create mirrored file $tf-1 failed"
 	$LFS mirror create -N $tf-2 || error "create mirrored file $tf-2 failed"
+	$LFS mirror create -N $tf-3 || error "create mirrored file $tf-3 failed"
 
-	$mirror_cmd -N -S 4M -N -f $tf-2 $tf-1 &> /dev/null &&
-		error "setstripe options should not be specified with -f option"
+	$mirror_cmd -N -S 4M -N -f $tf-2 $tf-1 ||
+		error "extend mirror with -f failed"
 
-	$mirror_cmd -N$((mirror_count - 1)) $tf-1 ||
-		error "extend mirrored file $tf-1 failed"
-	verify_mirror_count $tf-1 $mirror_count
-	ids=($($LFS getstripe $tf-1 | awk '/lcme_id/{print $2}' | tr '\n' ' '))
+	$mirror_cmd -N$((mirror_count - 1)) $tf-3 ||
+		error "extend mirrored file $tf-3 failed"
+	verify_mirror_count $tf-3 $mirror_count
+	ids=($($LFS getstripe $tf-3 | awk '/lcme_id/{print $2}' | tr '\n' ' '))
 	for ((i = 0; i < $mirror_count; i++)); do
-		verify_comp_attrs $tf-1 ${ids[$i]}
-		verify_comp_extent $tf-1 ${ids[$i]} 0 EOF
+		verify_comp_attrs $tf-3 ${ids[$i]}
+		verify_comp_extent $tf-3 ${ids[$i]} 0 EOF
 	done
 
-	$mirror_cmd -N $tf-1 &> /dev/null &&
-		error "exceeded maximum mirror count $mirror_count" || true
+	$mirror_cmd -N $tf-3 &> /dev/null
+	rc=$?
+	[[ $rc == 34 ]] ||
+		error "exceeded maximum mirror count returns $rc not ERANGE(34)"
 }
 run_test 0d "lfs mirror extend with -N option"
 
@@ -556,13 +567,11 @@ test_0e() {
 	verify_comp_attr stripe-size $tf ${ids[0]} 33554432
 	verify_comp_attr stripe-count $tf ${ids[0]} 3
 	verify_comp_attr stripe-index $tf ${ids[0]} 1
-	verify_comp_attr pool $tf ${ids[0]} ssd
 
 	# verify component ${ids[1]}
 	verify_comp_attr stripe-size $tf ${ids[1]} 4194304
 	verify_comp_attr stripe-count $tf ${ids[1]} 2
 	verify_comp_attr stripe-index $tf ${ids[1]} 2
-	verify_comp_attr pool $tf ${ids[1]} flash
 
 	# verify component ${ids[2]}
 	verify_comp_attr stripe-size $tf ${ids[2]} 16777216
@@ -603,11 +612,12 @@ test_0f() {
 		error "create mirrored file $tf failed"
 
 	# extend the mirrored file with composite layout mirrors
-	$mirror_cmd -N2 -E 4M -c 2 -p flash -i 1 -o 1,3 -E eof -S 4M \
+	$mirror_cmd -N -p archive \
+		    -N2 -E 4M -c 2 -p flash -i 1 -o 1,3 -E eof -S 4M \
 		    -N -c -1 -p none \
 		    -N3 -E 512M -S 16M -p archive -E -1 -i -1 -c -1 $tf ||
 		error "extend mirrored file $tf failed"
-	verify_mirror_count $tf 7
+	verify_mirror_count $tf 8
 	ids=($($LFS getstripe $tf | awk '/lcme_id/{print $2}' | tr '\n' ' '))
 
 	# verify component ${ids[0]}
@@ -622,39 +632,44 @@ test_0f() {
 	verify_comp_attr pool $tf ${ids[1]} ssd
 	verify_comp_extent $tf ${ids[1]} 33554432 EOF
 
-	# verify components ${ids[2]} and ${ids[4]}
-	for i in 2 4; do
+	# verify component ${ids[2]}
+	verify_comp_attr stripe-size $tf ${ids[0]} 16777216
+	verify_comp_attr_with_default stripe-count $tf ${ids[2]}
+	verify_comp_attr pool $tf ${ids[2]} archive
+	verify_comp_extent $tf ${ids[2]} 0 EOF
+
+	# verify components ${ids[3]} and ${ids[5]}
+	for i in 3 5; do
 		verify_comp_attr_with_default stripe-size $tf ${ids[$i]}
 		verify_comp_attr stripe-count $tf ${ids[$i]} 2
 		verify_comp_attr stripe-index $tf ${ids[$i]} 1
-		verify_comp_attr pool $tf ${ids[$i]} flash
 		verify_comp_extent $tf ${ids[$i]} 0 4194304
 	done
 
-	# verify components ${ids[3]} and ${ids[5]}
-	for i in 3 5; do
+	# verify components ${ids[4]} and ${ids[6]}
+	for i in 4 6; do
 		verify_comp_attr stripe-size $tf ${ids[$i]} 4194304
 		verify_comp_attr stripe-count $tf ${ids[$i]} 2
 		verify_comp_attr pool $tf ${ids[$i]} flash
 		verify_comp_extent $tf ${ids[$i]} 4194304 EOF
 	done
 
-	# verify component ${ids[6]}
-	verify_comp_attr stripe-size $tf ${ids[6]} 4194304
-	verify_comp_attr stripe-count $tf ${ids[6]} $OSTCOUNT
-	verify_comp_attr_with_parent pool $tf ${ids[6]}
-	verify_comp_extent $tf ${ids[6]} 0 EOF
+	# verify component ${ids[7]}
+	verify_comp_attr stripe-size $tf ${ids[7]} 4194304
+	verify_comp_attr stripe-count $tf ${ids[7]} $OSTCOUNT
+	verify_comp_attr_with_parent pool $tf ${ids[7]}
+	verify_comp_extent $tf ${ids[7]} 0 EOF
 
-	# verify components ${ids[7]}, ${ids[9]} and ${ids[11]}
-	for i in 7 9 11; do
+	# verify components ${ids[8]}, ${ids[10]} and ${ids[12]}
+	for i in 8 10 12; do
 		verify_comp_attr stripe-size $tf ${ids[$i]} 16777216
 		verify_comp_attr stripe-count $tf ${ids[$i]} $OSTCOUNT
 		verify_comp_attr pool $tf ${ids[$i]} archive
 		verify_comp_extent $tf ${ids[$i]} 0 536870912
 	done
 
-	# verify components ${ids[8]}, ${ids[10]} and ${ids[12]}
-	for i in 8 10 12; do
+	# verify components ${ids[9]}, ${ids[11]} and ${ids[13]}
+	for i in 9 11 13; do
 		verify_comp_attr stripe-size $tf ${ids[$i]} 16777216
 		verify_comp_attr stripe-count $tf ${ids[$i]} -1
 		verify_comp_attr pool $tf ${ids[$i]} archive
@@ -666,6 +681,21 @@ run_test 0f "lfs mirror extend composite layout mirrors"
 test_0g() {
 	local tf=$DIR/$tfile
 
+	! $LFS mirror create --flags prefer $tf ||
+		error "creating $tf w/ --flags but w/o -N option should fail"
+
+	! $LFS mirror create -N --flags foo $tf ||
+		error "creating $tf with '--flags foo' should fail"
+
+	! $LFS mirror create -N --flags stale $tf ||
+		error "creating $tf with '--flags stale' should fail"
+
+	! $LFS mirror create -N --flags prefer,init $tf ||
+		error "creating $tf with '--flags prefer,init' should fail"
+
+	! $LFS mirror create -N --flags ^prefer $tf ||
+		error "creating $tf with '--flags ^prefer' should fail"
+
 	$LFS mirror create -N -E 1M -S 1M -o0 --flags=prefer -E eof -o1 \
 			   -N -o1 $tf || error "create mirrored file $tf failed"
 
@@ -713,6 +743,12 @@ test_0h() {
 	verify_comp_attr lcme_flags $tf 0x10002 prefer
 
 	# set flags to the first component
+	! $LFS setstripe --comp-set -I 0x10001 --comp-flags=^prefer,foo $tf ||
+		error "setting '^prefer,foo' flags should fail"
+
+	! $LFS getstripe --component-flags=prefer,foo $tf ||
+		error "getting component(s) with 'prefer,foo' flags should fail"
+
 	$LFS setstripe --comp-set -I 0x10001 --comp-flags=^prefer,stale $tf
 
 	verify_comp_attr lcme_flags $tf 0x10001 stale
@@ -762,6 +798,24 @@ test_0h() {
 }
 run_test 0h "set, clear and test flags for FLR files"
 
+test_0j() {
+	$LFS mirror create -N2 $DIR/$tfile || error "create $DIR/$tfile failed"
+
+	cp /etc/hosts $DIR/$tfile || error "write to $DIR/$tfile failed"
+	$LFS mirror resync $DIR/$tfile || error "resync $DIR/$tfile failed"
+	cmp /etc/hosts $DIR/$tfile || error "cmp with /etc/hosts failed"
+
+	$LFS mirror read -N2 -o $TMP/$tfile $DIR/$tfile || error "read mirror failed"
+	stack_trap "rm -f $TMP/$tfile"
+	cmp $TMP/$tfile $DIR/$tfile || error "cmp with $TMP/$tfile failed"
+	$LFS mirror write -N2 -i /etc/passwd $DIR/$tfile || error "write failed"
+	$LFS setstripe --comp-set -I 65537 --comp-flags=stale $DIR/$tfile ||
+		error "set component 1 stale failed"
+	$LFS mirror resync $DIR/$tfile || error "resync $DIR/$tfile failed"
+	cmp /etc/passwd $DIR/$tfile || error "cmp with /etc/passwd failed"
+}
+run_test 0j "test lfs mirror read/write commands"
+
 test_1() {
 	local tf=$DIR/$tfile
 	local mirror_count=16 # LUSTRE_MIRROR_COUNT_MAX
@@ -883,27 +937,45 @@ test_5() {
 }
 run_test 5 "Make sure init size work for mirrored layout"
 
-# LU=10112: disable dom+flr for phase 1
 test_6() {
+	(( $MDS1_VERSION >= $(version_code 2.12.58) )) ||
+		skip "MDS version older than 2.12.58"
+
 	local tf=$DIR/$tfile
 
-	$LFS mirror create -N -E 1M -S 1M -L mdt -E eof -N -E eof $tf &&
-		error "expect failure to create mirrored file with DoM"
+	$LFS mirror create -N -E 1M -L mdt -E eof -S 1M -N -E eof $tf ||
+		error "failure to create DoM file with mirror"
 
-	$LFS mirror create -N -E 1M -S 1M -E eof -N -E 1M -L mdt -E eof $tf &&
-		error "expect failure to create mirrored file with DoM"
+	$LFS mirror create -N -E 1M -S 1M -E eof -N -E 1M -L mdt -E eof $tf ||
+		error "failure to create mirrored file with DoM"
 
-	$LFS setstripe -E 1M -S 1M -L mdt -E eof $tf
-	$LFS mirror extend -N2 $tf &&
-		error "expect failure to extend mirror with DoM"
+	$LFS setstripe -E 1M -L mdt -E eof -S 1M $tf ||
+		error "failure to create PFL with DoM file"
+	$LFS mirror extend -N2 $tf ||
+		error "failure to extend mirror with DoM"
 
-	$LFS mirror create -N2 -E 1M -S 1M -E eof $tf-2
-	$LFS mirror extend -N -f $tf $tf-2 &&
-		error "expect failure to extend mirrored file with DoM extent"
+	$LFS setstripe -E 1M -L mdt -E eof -S 1M $tf-1 ||
+		error "failure to create PFL with DoM file"
+	$LFS mirror create -N2 -E 1M -S 1M -E eof $tf-2 ||
+		error "failure to create mirrored file"
+	$LFS mirror extend -N -f $tf-1 $tf-2 ||
+		error "failure to extend mirrored file with DoM extent"
+}
+run_test 6 "DoM and FLR work together"
 
-	true
+test_7() {
+	local tf=$DIR/$tfile
+
+	# create DoM with setting stripe_size == component size
+	$LFS mirror create -N -E1M -S1M -L mdt -Eeof $tf ||
+		error "failure to create DoM with stripe_size == comp size"
+	rm -f $tf || error "delete $tf"
+
+	# DoM should not inherit previous component stripe_size
+	$LFS mirror create -N -E4M -S2M -Eeof -N -E1M -L mdt -Eeof $tf ||
+		error "DoM component shouldn't inherit previous stripe_size"
 }
-run_test 6 "DoM and FLR won't co-exist for phase 1"
+run_test 7 "Create mirror with DoM component"
 
 test_21() {
 	local tf=$DIR/$tfile
@@ -911,6 +983,8 @@ test_21() {
 
 	[[ $OSTCOUNT -lt 2 ]] && skip "need >= 2 OSTs" && return
 
+	stack_trap "rm -f $tf $tf2"
+
 	$LFS setstripe -E EOF -o 0 $tf
 	$LFS setstripe -E EOF -o 1 $tf2
 
@@ -955,6 +1029,8 @@ get_osc_lock_count() {
 test_22() {
 	local tf=$DIR/$tfile
 
+	stack_trap "rm -f $tf"
+
 	$LFS setstripe -E EOF -o 0 $tf
 	dd if=/dev/zero of=$tf bs=1M count=$((RANDOM % 20 + 1))
 
@@ -985,9 +1061,6 @@ test_31() {
 	$LFS mirror create -N -o 0 -N -o 1 $tf ||
 		error "creating mirrored file $tf failed"
 
-	#define OBD_FAIL_GLIMPSE_IMMUTABLE 0x1A00
-	$LCTL set_param fail_loc=0x1A00
-
 	local ost_idx
 	for ((ost_idx = 1; ost_idx <= 2; ost_idx++)); do
 		cancel_lru_locks osc
@@ -1019,6 +1092,8 @@ test_32() {
 	[[ $OSTCOUNT -lt 2 ]] && skip "need >= 2 OSTs" && return
 	rm -f $DIR/$tfile $DIR/$tfile-2
 
+	stack_trap "rm -f $DIR/$tfile"
+
 	$LFS setstripe -E EOF -o 0 $DIR/$tfile
 	dd if=/dev/urandom of=$DIR/$tfile bs=1M count=$((RANDOM % 10 + 2))
 
@@ -1356,6 +1431,8 @@ create_file_36() {
 test_36() {
 	local tf=$DIR/$tfile
 
+	stack_trap "rm -f $tf $tf-2 $tf-3"
+
 	create_file_36 $tf $tf-2 $tf-3
 
 	[ $($LFS getstripe -N $tf) -gt 1 ] || error "wrong mirror count"
@@ -1433,6 +1510,8 @@ test_37()
 	local tf3=$DIR/$tfile-3
 	local tf4=$DIR/$tfile-4
 
+	stack_trap "rm -f $tf $tf2 $tf3 $tf4"
+
 	create_files_37 $((RANDOM + 15 * 1048576)) $tf $tf2 $tf3
 	rm -f $tf4
 	cp $tf $tf4
@@ -1457,7 +1536,7 @@ test_37()
 	echo "Verifying mirror read .."
 
 	local sum
-	for i in ${mirror_array[@]}; do
+	for i in "${mirror_array[@]}"; do
 		$LCTL set_param ldlm.namespaces.*.lru_size=clear > /dev/null
 		sum=$($LFS mirror read -N $i $tf | md5sum)
 		[ "$sum" = "${checksums[$i]}" ] ||
@@ -1483,7 +1562,7 @@ test_37()
 
 	# verify copying is successful by checking checksums
 	remount_client $MOUNT
-	for i in ${mirror_array[@]}; do
+	for i in "${mirror_array[@]}"; do
 		sum=$($LFS mirror read -N $i $tf | md5sum)
 		[ "$sum" = "${checksums[1]}" ] ||
 			error "$i: mismatch checksum after copy \'$sum\'"
@@ -1497,6 +1576,8 @@ test_38() {
 	local tf=$DIR/$tfile
 	local ref=$DIR/${tfile}-ref
 
+	stack_trap "rm -f $tf $ref"
+
 	$LFS setstripe -E 1M -S 1M -c 1 -E 4M -c 2 -E eof -c -1 $tf ||
 		error "creating $tf failed"
 	$LFS setstripe -E 2M -S 1M -c 1 -E 6M -c 2 -E 8M -c -1 -E eof -c -1 \
@@ -1529,7 +1610,7 @@ test_38() {
 	[ "$file_cksum" = "$ref_cksum" ] || error "write failed, cksum mismatch"
 
 	get_mirror_ids $tf
-	echo "mirror IDs: ${mirror_array[@]}"
+	echo "mirror IDs: ${mirror_array[*]}"
 
 	local valid_mirror stale_mirror id mirror_cksum
 	for id in "${mirror_array[@]}"; do
@@ -1543,7 +1624,7 @@ test_38() {
 	[ -z "$stale_mirror" ] && error "stale mirror doesn't exist"
 	[ -z "$valid_mirror" ] && error "valid mirror doesn't exist"
 
-	mirror_io resync $tf || error "resync failed"
+	$LFS mirror resync $tf || error "resync failed"
 	verify_flr_state $tf "ro"
 
 	mirror_cksum=$($LFS mirror read -N $stale_mirror $tf | md5sum)
@@ -1566,7 +1647,7 @@ test_38() {
 	verify_flr_state $tf "sp"
 
 	# from sync_pending to read_only
-	mirror_io resync $tf || error "resync failed"
+	$LFS mirror resync $tf || error "resync failed"
 	verify_flr_state $tf "ro"
 }
 run_test 38 "resync"
@@ -1633,6 +1714,8 @@ run_test 40 "PFLR rdonly state instantiation check"
 test_41() {
 	local tf=$DIR/$tfile
 
+	stack_trap "rm -f $tf $tf-1"
+
 	rm -f $tf $tf-1
 	echo " **create two FLR files $tf $tf-1"
 	$LFS mirror create -N -E 2M -S 1M -E 4M -E -1 \
@@ -1729,6 +1812,8 @@ test_42() {
 	local mirror_cmd="$LFS mirror verify"
 	local i
 
+	stack_trap "rm -rf $td"
+
 	# create parent directory
 	mkdir $td || error "mkdir $td failed"
 
@@ -1843,7 +1928,7 @@ write_file_43() {
 	[ $flags = wp ] || error "file mirror state $flags != wp"
 }
 
-test_43() {
+test_43a() {
 	[ $OSTCOUNT -lt 3 ] && skip "needs >= 3 OSTs" && return
 
 	local tf=$DIR/$tfile
@@ -1890,15 +1975,39 @@ test_43() {
 	verify_comp_attr lcme_flags $tf 0x20002 init,stale
 	verify_comp_attr lcme_flags $tf 0x30003 init,stale
 }
-run_test 43 "mirror pick on write"
+run_test 43a "mirror pick on write"
+
+test_43b() {
+	local tf=$DIR/$tdir/$tfile
+
+	test_mkdir $DIR/$tdir
+	rm -f $tf
+	stack_trap "rm -rf $tf"
+
+	# create 3 mirrors FLR file, the first 2 mirrors are preferred
+	$LFS setstripe -N -Eeof --flags=prefer -N -Eeof --flags=prefer \
+		-N -Eeof $tf || error "create 3 mirrors file $tf failed"
+	verify_flr_state $tf "ro"
+
+	echo " ** write to $tf"
+	dd if=/dev/zero of=$tf bs=1M count=1 || error "write $tf failed"
+	verify_flr_state $tf "wp"
+
+	echo " ** resync $tf"
+	$LFS mirror resync $tf || error "resync $tf failed"
+	verify_flr_state $tf "ro"
+}
+run_test 43b "allow writing to multiple preferred mirror file"
 
-test_44() {
+test_44a() {
 	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
 	rm -rf $DIR/$tdir
 	rm -rf $DIR/$tdir-1
 	local tf=$DIR/$tdir/$tfile
 	local tf1=$DIR/$tdir-1/$tfile-1
 
+	stack_trap "rm -rf $tf $tf1"
+
 	$LFS setdirstripe -i 0 -c 1 $DIR/$tdir ||
 		error "create directory failed"
 	$LFS setdirstripe -i 1 -c 1 $DIR/$tdir-1 ||
@@ -1965,7 +2074,191 @@ test_44() {
 	diff $tf $tf.mirror~2 ||
 		error "splited file $tf.mirror~2 diffs from $tf"
 }
-run_test 44 "lfs mirror split check"
+run_test 44a "lfs mirror split check"
+
+test_44b() {
+	(( $MDS1_VERSION >= $(version_code 2.14.56) )) ||
+		skip "Need MDS version at least 2.14.56"
+
+	rm -rf $DIR/$tdir
+	local tf=$DIR/$tdir/$tfile
+
+	mkdir -p $DIR/$tdir || error "create directory failed"
+
+	echo XXX > $tf
+
+	# create 2 mirrors file
+	$LFS mirror extend -N -c1 $tf
+
+	echo YYY > $tf
+
+	verify_flr_state $tf "wp"
+
+	local str=$(cat $tf)
+
+	[[ $str == "YYY" ]] || error "$tf content is not YYY"
+
+	# get the non-stale mirror id
+	local ids=($($LFS getstripe $tf | awk '/lcme_id/{print $2}' |
+			tr '\n' ' '))
+	local mirror_ids=($($LFS getstripe $tf |
+			awk '/lcme_mirror_id/{print $2}' | tr '\n' ' '))
+	for ((i = 0; i < 2; i++)); do
+		$LFS getstripe -I${ids[$i]} --component-flags $tf |
+			grep stale > /dev/null || break
+	done
+
+	[[ $i -ge 2 ]] && ( $LFS getstripe $tf; error "no stale mirror" )
+
+	$LFS getstripe $tf
+
+	# split the updated mirror, should fail
+	echo "split mirror_id ${mirror_ids[$i]} id ${ids[$i]}, should fail"
+	$LFS mirror split --mirror-id=${mirror_ids[$i]} $tf &> /dev/null &&
+		error "split --mirror-id=${mirror_ids[$i]} $tf should fail"
+
+	i=$(( 1 - i ))
+	# split the stale mirror
+	echo "split mirror_id ${mirror_ids[$i]} id ${ids[$i]}"
+	$LFS mirror split --mirror-id=${mirror_ids[$i]} -d $tf ||
+		error "mirror split --mirror-id=${mirror_ids[$i]} $tf failed"
+
+	echo "make sure there's no stale comp in the file"
+	# make sure there's no stale comp in the file
+	$LFS getstripe $tf | awk '/lcme_flags/{print $2}' | grep stale &&
+		( $LFS getstripe $tf; error "stale mirror file" )
+
+	str=$(cat $tf)
+	[[ $str == "YYY" ]] ||
+		( cat $tf; error "$tf content is not YYY after split" )
+}
+run_test 44b "mirror split does not create stale file"
+
+test_44c() {
+	local tf=$DIR/$tdir/$tfile
+
+	stack_trap "rm -f $tf"
+
+	[ $MDS1_VERSION -ge $(version_code 2.14.52) ] ||
+		skip "Need MDS version at least 2.14.52"
+
+	[ "$FSTYPE" != "zfs" ] || skip "ZFS file's block number is not accurate"
+
+	mkdir -p $DIR/$tdir || error "create directroy failed"
+
+	dd if=/dev/zero of=$tf bs=1M count=10 || error "dd write $tfile failed"
+	sync
+	block1=$(( $(stat -c "%b*%B" $tf) ))
+	echo " ** before mirror ops, file blocks=$((block1/1024)) KiB"
+
+	$LFS mirror extend -N2 -c1 $tf || error "mirror extend $tfile failed"
+	sync
+	block2=$(( $(stat -c "%b*%B" $tf) ))
+	echo " ** after mirror extend, file blocks=$((block2/1024)) KiB"
+
+	$LFS mirror split -d --mirror-id=2 $tf ||
+		error "mirror split $tfile failed"
+	$LFS mirror split -d --mirror-id=3 $tf ||
+		error "mirror split $tfile failed"
+	sync
+	lfs getsom $tf
+	block3=$(( $(stat -c "%b*%B" $tf) ))
+	echo " ** after mirror split, file blocks=$((block3/1024)) KiB"
+
+	[[ $block1 -eq $block3 ]] ||
+		error "mirror split does not reduce block# $block3 != $block1"
+}
+run_test 44c "lfs mirror split reduces block size of a file"
+
+test_44d() {
+	local tf=$DIR/$tdir/$tfile
+	local size1
+	local size2
+	local size3
+	local size4
+
+	stack_trap "rm -f $tf"
+
+	mkdir -p $DIR/$tdir || error "create directroy failed"
+
+	dd if=/dev/zero of=$tf bs=1M count=10 || error "dd write $tfile failed"
+	sync
+	size1=$(stat -c "%s" $tf)
+	echo " ** before mirror ops, file size=$size1"
+
+	$LFS mirror extend -N2 -c1 $tf || error "mirror extend $tfile failed"
+	sync
+	size2=$(stat -c "%s" $tf)
+	echo " ** after mirror extend, file size=$size2"
+
+	(($size1 == $size2)) ||
+		error "mirror extend should not change size, before: $size1, after $size2"
+
+	$LFS mirror split -d --mirror-id=2 $tf ||
+		error "mirror split $tfile failed"
+
+	size2=$(stat -c "%s" $tf)
+	echo " ** after mirror split, file size=$size2"
+	(($size1 == $size2)) ||
+		error "mirror split should not change size, before: $size1, after $size2"
+
+	# Remount client to clear cached size information
+	remount_client $MOUNT
+	size2=$(stat -c "%s" $tf)
+	echo " ** after mirror split & remount, file size=$size2"
+	(($size1 == $size2)) ||
+		error "mirror extend should not change size, before: $size1, after $size2"
+
+}
+run_test 44d "lfs mirror split does not break size"
+
+test_44e() {
+	local tf=$DIR/$tdir/$tfile
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	local size1
+	local size2
+
+	test_mkdir $DIR/$tdir
+	[ $MDS1_VERSION -ge $(version_code 2.14.52) ] ||
+		skip "Need MDS version at least 2.14.52"
+
+	$LFS mirror create -N2 $tf || error "create mirrored file $tf failed"
+
+	# Disable xattr caching so we can repeatedly check SOM with lfs getsom
+	$LCTL set_param llite.*.xattr_cache=0
+	stack_trap "$LCTL set_param llite.*.xattr_cache=1"
+
+	dd if=/dev/zero of=$tf bs=1M count=10 || error "dd write $tfile failed"
+	sync
+	size1=$(stat -c "%s" $tf)
+	echo " ** before mirror resync, file size=$size1"
+
+	$LFS mirror resync $tf || error "mirror resync file $tf failed"
+	size1=$(stat -c "%s" $tf)
+	size2=$($LFS getsom -s $tf)
+
+	$LFS getsom $tf
+
+	((size1 == size2)) ||
+		error "mirrored file with strict SOM $size1 != disabled SOM $size2"
+
+	# Remount client to clear cached size information
+	remount_client $MOUNT
+
+	save_lustre_params $(get_facets MDS) mdt.*MDT*.enable_strict_som > $p
+	stack_trap "restore_lustre_params < $p; rm -f $p"
+	local mds_facet=mds$(($($LFS getstripe -m $tf) + 1))
+
+	do_facet $mds_facet $LCTL set_param mdt.*MDT*.enable_strict_som=0
+
+	size2=$(stat -c "%s" $tf)
+	# 'getsom' here is just for debugging
+	$LFS getsom $tf
+
+	((size2 == size1)) ||
+		error "mirrored file in sync with som disabled, size with som disabled ($size2) and without som disabled ($size1) should agree"
+}
+run_test 44e "basic FLR SOM tests + disable SOM"
 
 test_45() {
 	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
@@ -2031,6 +2324,7 @@ test_46() {
 
 	########################### 3. FLR file #############################
 	echo "  ** 3. FLR file"
+	rm -f $file
 	$LFS setstripe -N -E1m -S 1M -c2 -o0,1 -E4m -c1 -Eeof -N -E16m -Eeof \
 		$file || error "3. Create FLR $file failed"
 
@@ -2059,6 +2353,42 @@ test_46() {
 		error "6. setstripe FLR $dir failed"
 
 	verify_46 $dir $dir.copy "6. FLR dir"
+
+	(( $MDS1_VERSION >= $(version_code 2.13.53.205) )) ||
+		echo "server version $MDS1_VERSION does not support SEL" &&
+		return 0
+
+	########################### 7. SEL file ##############################
+	echo "  ** 7. SEL file"
+	rm -f $file
+	$LFS setstripe -E256M -S 1M -c2 -o0,1 -z 64M -E-1 -o1,0 -z 128M \
+		$file || error "Create $file failed"
+
+	rm -f $file.copy
+	verify_46 $file $file.copy "7. SEL file"
+
+	########################### 8. SEL dir ##############################
+	echo "  ** 8. SEL dir"
+	$LFS setstripe -E256M -S 1M -c2 -z 64M -E-1 -z 128M \
+		$dir || error "setstripe $dir failed"
+
+	verify_46 $dir $dir.copy "8. SEL dir"
+
+	########################### 9. FLR SEL file ##########################
+	echo "  ** 9. FLR SEL file"
+	rm -f $file
+	$LFS setstripe -N -E256M -c2 -z 64M -E-1 -z 128M \
+		-N -E1G -c4 -z128M -E-1 -z256M $file || error "Create $file failed"
+
+	rm -f $file.copy
+	verify_46 $file $file.copy "9. SEL file"
+
+	########################### 10. FLR SEL dir #########################
+	echo "  ** 10. FLR SEL dir"
+	$LFS setstripe -N -E256M -c2 -z 64M -E-1 -z 128M \
+		-N -E1G -c4 -z128M -E-1 -z256M $dir || error "Create $file failed"
+
+	verify_46 $dir $dir.copy "10. SEL dir"
 }
 run_test 46 "Verify setstripe --copy option"
 
@@ -2197,6 +2527,604 @@ test_48() {
 }
 run_test 48 "Verify snapshot mirror"
 
+OLDIFS="$IFS"
+cleanup_49() {
+	trap 0
+	IFS="$OLDIFS"
+}
+
+test_49a() {
+	[ "$OSTCOUNT" -lt "2" ] && skip_env "needs >= 2 OSTs"
+
+	trap cleanup_49 EXIT RETURN
+
+	local file=$DIR/$tfile
+
+	$LFS setstripe -N -E eof -c1 -o1 -N -E eof -c1 -o0 $file ||
+		error "setstripe on $file"
+
+	dd if=/dev/zero of=$file bs=1M count=1 || error "dd failed for $file"
+	$LFS mirror resync $file
+
+	filefrag -ves $file || error "filefrag $file failed"
+	filefrag_op=$(filefrag -ve -k $file |
+		      sed -n '/ext:/,/found/{/ext:/d; /found/d; p}')
+
+#Filesystem type is: bd00bd0
+#File size of /mnt/lustre/f49a.sanity-flr is 1048576 (1024 blocks of 1024 bytes)
+# ext:     device_logical:        physical_offset: length:  dev: flags:
+#   0:        0..    1023:    1572864..   1573887:   1024: 0001: net,eof
+#   1:        0..    1023:    1572864..   1573887:   1024: 0000: last,net,eof
+#/mnt/lustre/f49a.sanity-flr: 2 extents found
+
+	last_lun=$(echo $filefrag_op | cut -d: -f5)
+	IFS=$'\n'
+	tot_len=0
+	num_luns=1
+	for line in $filefrag_op; do
+		frag_lun=$(echo $line | cut -d: -f5)
+		ext_len=$(echo $line | cut -d: -f4)
+		if [[ "$frag_lun" != "$last_lun" ]]; then
+			if (( tot_len != 1024 )); then
+				cleanup_49
+				error "$file: OST$last_lun $tot_len != 1024"
+			else
+				(( num_luns += 1 ))
+				tot_len=0
+			fi
+		fi
+		(( tot_len += ext_len ))
+		last_lun=$frag_lun
+	done
+	if (( num_luns != 2 || tot_len != 1024 )); then
+		cleanup_49
+		error "$file: $num_luns != 2, $tot_len != 1024 on OST$last_lun"
+	fi
+
+	echo "FIEMAP on $file succeeded"
+}
+run_test 49a "FIEMAP upon FLR file"
+
+test_50A() {	# EX-2179
+	mkdir -p $DIR/$tdir
+
+	local file=$DIR/$tdir/$tfile
+
+	$LFS setstripe -c1 -i0 $file || error "setstripe $file failed"
+
+	$LFS mirror extend -N -c1 -i1 $file ||
+		error "extending mirror for $file failed"
+
+	local olv=$($LFS getstripe $file | awk '/lcm_layout_gen/{print $2}')
+
+	fail mds1
+
+	$LFS mirror split -d --mirror-id=1 $file || error "split $file failed"
+
+	local flv=$($LFS getstripe $file | awk '/lcm_layout_gen/{print $2}')
+
+	echo "$file layout generation from $olv to $flv"
+	(( $flv != ($olv + 1) )) &&
+		error "split does not increase layout gen from $olv to $flv"
+
+	dd if=/dev/zero of=$file bs=1M count=1 || error "write $file failed"
+
+	$LFS getstripe -v $file || error "getstripe $file failed"
+}
+run_test 50A "mirror split update layout generation"
+
+test_50a() {
+	$LCTL get_param osc.*.import | grep -q 'connect_flags:.*seek' ||
+		skip "OST does not support SEEK_HOLE"
+
+	local file=$DIR/$tdir/$tfile
+	local offset
+	local sum1
+	local sum2
+	local blocks
+
+	mkdir -p $DIR/$tdir
+
+	echo " ** create striped file $file"
+	$LFS setstripe -E 1M -c1 -S 1M -E eof -c2 -S1M $file ||
+		error "cannot create file with PFL layout"
+	echo " ** write 1st data chunk at 1M boundary"
+	dd if=/dev/urandom of=$file bs=1k count=20 seek=1021 ||
+		error "cannot write data at 1M boundary"
+	echo " ** write 2nd data chunk at 2M boundary"
+	dd if=/dev/urandom of=$file bs=1k count=20 seek=2041 ||
+		error "cannot write data at 2M boundary"
+	echo " ** create hole at the file end"
+	$TRUNCATE $file 3700000 || error "truncate fails"
+
+	echo " ** verify sparseness"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	[[ $offset == 1000 ]] &&
+		error "src: data is not expected at offset $offset"
+	offset=$(lseek_test -l 3500000 $file)
+	echo "    hole at the end: $offset"
+	[[ $offset == 3500000 ]] ||
+		error "src: hole is expected at offset $offset"
+
+	echo " ** extend the file with new mirror"
+	# migrate_copy_data() is used
+	$LFS mirror extend -N -E 2M -S 1M -E 1G -S 2M -E eof $file ||
+		error "cannot create mirror"
+	$LFS getstripe $file | grep lcme_flags | grep stale > /dev/null &&
+		error "$file still has stale component"
+
+	# check migrate_data_copy() was correct
+	sum_1=$($LFS mirror read -N 1 $file | md5sum)
+	sum_2=$($LFS mirror read -N 2 $file | md5sum)
+	[[ $sum_1 == $sum_2 ]] ||
+		error "data mismatch: \'$sum_1\' vs. \'$sum_2\'"
+
+	# stale first mirror
+	$LFS setstripe --comp-set -I0x10001 --comp-flags=stale $file
+	$LFS setstripe --comp-set -I0x10002 --comp-flags=stale $file
+
+	echo " ** verify mirror #2 sparseness"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	[[ $offset == 1000 ]] &&
+		error "dst: data is not expected at offset $offset"
+	offset=$(lseek_test -l 3500000 $file)
+	echo "    hole at the end: $offset"
+	[[ $offset == 3500000 ]] ||
+		error "dst: hole is expected at offset $offset"
+
+	echo " ** copy mirror #2 to mirror #1"
+	$LFS mirror copy -i 2 -o 1 $file || error "mirror copy fails"
+	$LFS getstripe $file | grep lcme_flags | grep stale > /dev/null &&
+		error "$file still has stale component"
+
+	# check llapi_mirror_copy_many correctness
+	sum_1=$($LFS mirror read -N 1 $file | md5sum)
+	sum_2=$($LFS mirror read -N 2 $file | md5sum)
+	[[ $sum_1 == $sum_2 ]] ||
+		error "data mismatch: \'$sum_1\' vs. \'$sum_2\'"
+
+	# stale 1st component of mirror #2 before lseek call
+	$LFS setstripe --comp-set -I0x20001 --comp-flags=stale $file
+
+	echo " ** verify mirror #1 sparseness again"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	[[ $offset == 1000 ]] &&
+		error "dst: data is not expected at offset $offset"
+	offset=$(lseek_test -l 3500000 $file)
+	echo "    hole at the end: $offset"
+	[[ $offset == 3500000 ]] ||
+		error "dst: hole is expected at offset $offset"
+
+	cancel_lru_locks osc
+
+	blocks=$(stat -c%b $file)
+	echo " ** final consumed blocks: $blocks"
+	# for 3.5Mb file consumes ~6000 blocks, use 1000 to check
+	# that file is still sparse
+	(( blocks < 1000 )) ||
+		error "Mirrored file consumes $blocks blocks"
+
+	rm $file
+}
+run_test 50a "mirror extend/copy preserves sparseness"
+
+test_50b() {
+	$LCTL get_param osc.*.import | grep -q 'connect_flags:.*seek' ||
+		skip "OST does not support SEEK_HOLE"
+
+	local file=$DIR/$tdir/$tfile
+	local offset
+	local sum1
+	local sum2
+	local blocks
+
+	mkdir -p $DIR/$tdir
+
+	echo " ** create mirrored file $file"
+	$LFS mirror create -N -E1M -c1 -S1M -E eof \
+		-N -E2M -S1M -E eof -S2M $file ||
+		error "cannot create mirrored file"
+	echo " ** write data chunk at 1M boundary"
+	dd if=/dev/urandom of=$file bs=1k count=20 seek=1021 ||
+		error "cannot write data at 1M boundary"
+	echo " ** create hole at the file end"
+	$TRUNCATE $file 3700000 || error "truncate fails"
+
+	echo " ** verify sparseness"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	[[ $offset == 1000 ]] &&
+		error "src: data is not expected at offset $offset"
+	offset=$(lseek_test -l 3500000 $file)
+	echo "    hole at the end: $offset"
+	[[ $offset == 3500000 ]] ||
+		error "src: hole is expected at 3500000"
+
+	echo " ** resync mirror #2 to mirror #1"
+	$LFS mirror resync $file
+
+	# check llapi_mirror_copy_many correctness
+	sum_1=$($LFS mirror read -N 1 $file | md5sum)
+	sum_2=$($LFS mirror read -N 2 $file | md5sum)
+	[[ $sum_1 == $sum_2 ]] ||
+		error "data mismatch: \'$sum_1\' vs. \'$sum_2\'"
+
+	cancel_lru_locks osc
+
+	blocks=$(stat -c%b $file)
+	echo " ** consumed blocks: $blocks"
+	# without full punch() support the first component can be not sparse
+	# but the last one should be, so file should use far fewer blocks
+	(( blocks < 5000 )) ||
+		error "Mirrored file consumes $blocks blocks"
+
+	# stale first component in mirror #1
+	$LFS setstripe --comp-set -I0x10001 --comp-flags=stale,nosync $file
+	echo " ** truncate file down"
+	$TRUNCATE $file 0
+	echo " ** write data chunk at 2M boundary"
+	dd if=/dev/urandom of=$file bs=1k count=20 seek=2041 conv=notrunc ||
+		error "cannot write data at 2M boundary"
+	echo " ** resync mirror #2 to mirror #1 with nosync 1st component"
+	$LFS mirror resync $file || error "mirror rsync fails"
+	# first component is still stale
+	$LFS getstripe $file | grep 'lcme_flags:.*stale' > /dev/null ||
+		error "$file still has no stale component"
+	echo " ** resync mirror #2 to mirror #1 again"
+	$LFS setstripe --comp-set -I0x10001 --comp-flags=stale,^nosync $file
+	$LFS mirror resync $file || error "mirror rsync fails"
+	$LFS getstripe $file | grep 'lcme_flags:.*stale' > /dev/null &&
+		error "$file still has stale component"
+
+	# check llapi_mirror_copy_many correctness
+	sum_1=$($LFS mirror read -N 1 $file | md5sum)
+	sum_2=$($LFS mirror read -N 2 $file | md5sum)
+	[[ $sum_1 == $sum_2 ]] ||
+		error "data mismatch: \'$sum_1\' vs. \'$sum_2\'"
+
+	cancel_lru_locks osc
+
+	blocks=$(stat -c%b $file)
+	echo " ** final consumed blocks: $blocks"
+	# while the first component can lose sparseness, the last one should
+	# not, so whole file should still use far fewer blocks in total
+	(( blocks < 3000 )) ||
+		error "Mirrored file consumes $blocks blocks"
+	rm $file
+}
+run_test 50b "mirror rsync handles sparseness"
+
+test_50c() {
+	local tf=$DIR/$tdir/$tfile
+
+	test_mkdir $DIR/$tdir
+
+	$LFS setstripe -N2 -c-1 $tf || error "create FLR $tf failed"
+	verify_flr_state $tf "ro"
+
+	if [[ "$FSTYPE" == "ldiskfs" ]]; then
+		# ZFS does not support fallocate for now
+		out=$(fallocate -p -o 1MiB -l 1MiB $tf 2>&1) ||
+			skip_eopnotsupp "$out|punch hole in $tf failed"
+		verify_flr_state $tf "wp"
+	fi
+
+	dd if=/dev/zero of=$tf bs=4096 count=4 || error "write $tf failed"
+	$LFS mirror resync $tf || error "mirror resync $tf failed"
+	verify_flr_state $tf "ro"
+
+	$MULTIOP $tf OSMWUc || error "$MULTIOP $tf failed"
+	verify_flr_state $tf "wp"
+}
+run_test 50c "punch_hole/mmap_write stale other mirrors"
+
+test_50d() {
+	$LCTL get_param osc.*.import | grep -q 'connect_flags:.*seek' ||
+		skip "OST does not support SEEK_HOLE"
+	(( $LINUX_VERSION_CODE > $(version_code 3.0.0) )) ||
+		skip "client kernel does not support SEEK_HOLE"
+
+	local file=$DIR/$tdir/$tfile
+	local offset
+	local prt
+	local rc
+
+	mkdir -p $DIR/$tdir
+
+	echo " ** create mirrored file $file"
+	$LFS mirror create -N -E1M -c1 -S1M -E eof \
+		-N -E2M -S1M -E eof -S2M $file ||
+		error "cannot create mirrored file"
+	echo " ** write data chunk at 1M boundary"
+	dd if=/dev/urandom of=$file bs=1k count=20 seek=1021 ||
+		error "cannot write data at 1M boundary"
+	echo " ** create hole at the file start"
+	prt=$(fallocate -p -o 0 -l 1M $file 2>&1)
+	rc=$?
+
+	if [[ $rc -eq 0 ]]; then
+		verify_flr_state $file "wp"
+	elif [[ ! $prt =~ unsupported ]]; then
+		error "punch hole in $file failed: $prt"
+	else
+		skip "Fallocate punch is not supported: $prt"
+	fi
+
+	echo " ** verify sparseness"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	(( $offset >= 1024 * 1024 )) ||
+		error "src: data is not expected at offset $offset"
+
+	echo " ** resync mirror #2"
+	$LFS mirror resync $file
+
+	# check llapi_mirror_copy_many correctness
+	sum_1=$($LFS mirror read -N 1 $file | md5sum)
+	sum_2=$($LFS mirror read -N 2 $file | md5sum)
+	[[ $sum_1 == $sum_2 ]] ||
+		error "data mismatch: \'$sum_1\' vs. \'$sum_2\'"
+
+	cancel_lru_locks osc
+
+	# stale first component in mirror #1
+	$LFS setstripe --comp-set -I0x10001 --comp-flags=stale,nosync $file
+	echo " ** verify sparseness of mirror #2"
+	offset=$(lseek_test -d 1000 $file)
+	echo "    first data offset: $offset"
+	(( $offset >= 1024 * 1024 )) ||
+		error "src: data is not expected at offset $offset"
+}
+run_test 50d "mirror rsync keep holes"
+
+test_60a() {
+	$LCTL get_param osc.*.import | grep -q 'connect_flags:.*seek' ||
+		skip "OST does not support SEEK_HOLE"
+
+	local file=$DIR/$tdir/$tfile
+	local old_size=2147483648 # 2GiB
+	local new_size
+
+	mkdir -p $DIR/$tdir
+	dd if=/dev/urandom of=$file bs=4096 count=1 seek=$((134217728 / 4096))
+	$TRUNCATE $file $old_size
+
+	$LFS mirror extend -N -c 1 $file
+	dd if=/dev/urandom of=$file bs=4096 count=1 seek=$((134217728 / 4096)) conv=notrunc
+	$LFS mirror resync $file
+
+	new_size=$(stat --format='%s' $file)
+	if ((new_size != old_size)); then
+		error "new_size ($new_size) is not equal to old_size ($old_size)"
+	fi
+
+	rm $file
+}
+run_test 60a "mirror extend sets correct size on sparse file"
+
+get_flr_layout_gen() {
+	getfattr -n lustre.lov --only-values $tf 2>/dev/null |
+		od -tx4 | awk '/000000/ { print "0x"$4; exit; }'
+}
+
+check_layout_gen() {
+	local tf=$1
+
+	local v1=$(get_flr_layout_gen $tf)
+	local v2=$($LFS getstripe -v $tf | awk '/lcm_layout_gen/ { print $2 }')
+
+	[[ $v1 -eq $v2 ]] ||
+		error "$tf in-memory layout gen $v1 != $v2 after $2"
+}
+
+test_60b() {
+	local tf=$DIR/$tdir/$tfile
+
+	test_mkdir $DIR/$tdir
+
+	$LFS setstripe -Eeof $tf || error "setstripe $tf failed"
+
+	for ((i = 0; i < 20; i++)); do
+		$LFS mirror extend -N $tf ||
+			error "extending mirror for $tf failed"
+		check_layout_gen $tf "extend"
+
+		$LFS mirror split -d --mirror-id=$((i+1)) $tf ||
+			error "split $tf failed"
+		check_layout_gen $tf "split"
+	done
+}
+run_test 60b "mirror merge/split cancel client's in-memory layout gen"
+
+get_times_61() {
+	stat --format='%X %Y %Z' $file || error "$file: cannot get times"
+}
+
+check_times_61() {
+	local file=$1
+	local -a old=( $2 $3 $4 )
+	local -a new
+
+	new=( $(get_times_61 $file) )
+	((${old[0]} == ${new[0]})) ||
+		error "$file: atime: old '${old[0]}' != new '${new[0]}'"
+
+	((${old[1]} == ${new[1]})) ||
+		error "$file: mtime: old '${old[1]}' != new '${new[1]}'"
+}
+
+test_61a() { # LU-14508
+	local file=$DIR/$tdir/$tfile
+	local -a tim
+	local nap=5
+
+	mkdir -p $DIR/$tdir
+	echo "create $file"
+	$LFS setstripe -E1M -Eeof $file || error "setstripe $file failed"
+	echo "create $file-2"
+	$LFS setstripe -E2M -Eeof $file-2 || error "setstripe $file-2 failed"
+
+	echo XXX > $file || error "write $file failed"
+	chown $RUNAS_ID $DIR/$tdir $file || error "chown $file failed"
+
+	echo "sleep $nap seconds, then cat $tfile"
+	sleep $nap
+	cat $file || error "cat $file failed"
+
+	echo "sleep $nap seconds, then re-write $tfile"
+	sleep $nap
+	echo XXXX > $file || error "write $file failed"
+	cp -p $file $file-2 || error "copy $file-2 failed"
+
+	echo "sleep $nap seconds"
+	sleep $nap
+
+	tim=( $(get_times_61 $file) )
+
+	echo "mirror merge $tfile-2 to $tfile and test timestamps"
+	$LFS mirror extend -N -f $file-2 $file ||
+		error "cannot mirror merge $file-2 to $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo "mirror extend $tfile and test timestamps"
+	$LFS mirror extend -N -c1 -i1 $file ||
+		error "cannot extend mirror $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo "migrate $tfile and test timestamps"
+	$LFS migrate -n $file || error "cannot migrate $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo "normal user migrate $tfile and test timestamps"
+	$RUNAS $LFS migrate -n $file || error "cannot migrate $file"
+	check_times_61 $file "${tim[@]}"
+}
+run_test 61a "mirror extend and migrate preserve timestamps"
+
+test_61b() { # LU-14508
+	local file=$DIR/$tdir/$tfile
+	local -a tim
+	local nap=5
+
+	mkdir -p $DIR/$tdir
+	echo "create $file"
+	echo XXX > $file || error "create $file failed"
+	chown $RUNAS_ID $DIR/$tdir $file || error "chown $file failed"
+
+	echo "sleep $nap seconds, then cat $tfile"
+	sleep $nap
+	cat $file || error "cat $file failed"
+
+	echo "sleep $nap seconds, then re-write $tfile"
+	sleep $nap
+	echo XXXX > $file || error "write $file failed"
+
+	echo "sleep $nap seconds, then test timestamps"
+	sleep $nap
+
+	tim=( $(get_times_61 $file) )
+
+	echo "mirror extend $tfile and test timestamps"
+	$LFS mirror extend -N -c1 -i1 $file ||
+		error "cannot extend mirror $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo "mirror split $tfile and test timestamps"
+	$LFS mirror split -d --mirror-id=1 $file ||
+		error "cannot split mirror 1 off $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo "normal user mirror extend $tfile and test timestamps"
+	$RUNAS $LFS mirror extend -N -c1 -i1 $file ||
+		error "cannot extend mirror $file"
+	check_times_61 $file "${tim[@]}"
+}
+run_test 61b "mirror extend and split preserve timestamps"
+
+test_61c() { # LU-14508
+	local file=$DIR/$tdir/$tfile
+	local -a tim
+	local nap=5
+
+	mkdir -p $DIR/$tdir
+	echo "create $file"
+	echo XXX > $file || error "create $file failed"
+	chown $RUNAS_ID $DIR/$tdir $file || error "chown $file failed"
+
+	echo "sleep $nap seconds, then cat $tfile"
+	sleep $nap
+	cat $file || error "cat $file failed"
+
+	echo "sleep $nap seconds, then mirror extend $tfile and write it"
+	sleep $nap
+	$LFS mirror extend -N -c1 -i1 $file ||
+		error "cannot extend mirror $file"
+	echo XXXX > $file || error "write $file failed"
+
+	echo "sleep $nap seconds, then resync $tfile and test timestamps"
+	tim=( $(get_times_61 $file) )
+	sleep $nap
+	$LFS mirror resync $file || error "cannot resync mirror $file"
+	check_times_61 $file "${tim[@]}"
+
+	echo XXXXXX > $file || error "write $tfile failed"
+
+	echo "normal user resync $tfile and test timestamps"
+	tim=( $(get_times_61 $file) )
+	$RUNAS $LFS mirror resync $file || error "cannot resync mirror $file"
+	check_times_61 $file "${tim[@]}"
+}
+run_test 61c "mirror resync preserves timestamps"
+
+test_70() {
+	local tf=$DIR/$tdir/$tfile
+
+	test_mkdir $DIR/$tdir
+
+	while true; do
+		rm -f $tf
+		$LFS mirror create -N -E 1M -c -1 -E eof -N $tf
+		echo xxxx > $tf
+	done &
+	c_pid=$!
+	echo "mirror create pid $c_pid"
+
+	while true; do
+		$LFS mirror split -d --mirror-id=1 $tf &> /dev/null
+	done &
+	s_pid=$!
+	echo "mirror split pid $s_pid"
+
+	echo "mirror create and split race for 60 seconds, should not crash"
+	sleep 60
+	kill -9 $c_pid &> /dev/null
+	kill -9 $s_pid &> /dev/null
+
+	rm -f $tf
+	true
+}
+run_test 70 "mirror create and split race"
+
+test_100() {
+	local tf=$DIR/$tdir/$tfile
+
+	(( $OST1_VERSION >= $(version_code 2.14.51) )) ||
+		skip "Need OST version at least 2.14.51"
+
+
+	test_mkdir $DIR/$tdir
+
+	$LFS setstripe -N -E1M -c-1 -Eeof -c-1 $tf ||
+		error "setstripe $tf failed"
+
+	FSXNUM=${FSXNUM:-1000}
+	$FSX -p 5 -N $FSXNUM -S 0 -M $tf || error "fsx FLR file $tf failed"
+}
+run_test 100 "flr mode fsx test"
+
 ctrl_file=$(mktemp /tmp/CTRL.XXXXXX)
 lock_file=$(mktemp /var/lock/FLR.XXXXXX)
 
@@ -2254,8 +3182,8 @@ resync_file_200() {
 		echo -n "resync file $tf with '$cmd' .."
 
 		if [[ $lock_taken = "true" ]]; then
-			flock -x 200 -c "$cmd $tf &> /dev/null" &&
-				echo "done" || echo "failed"
+			flock -x 200
+			$cmd $tf &> /dev/null && echo "done" || echo "failed"
 			flock -u 200
 		else
 			$cmd $tf &> /dev/null && echo "done" || echo "failed"
@@ -2317,8 +3245,8 @@ test_200() {
 
 	rm -f $ctrl_file
 
-	echo "Waiting ${pids[@]}"
-	wait ${pids[@]}
+	echo "Waiting ${pids[*]}"
+	wait "${pids[@]}"
 
 	umount_client $MOUNT2
 	umount_client $MOUNT3
@@ -2326,11 +3254,12 @@ test_200() {
 	rm -f $lock_file
 
 	# resync and verify mirrors
-	mirror_io resync $tf
+	$LFS mirror resync $tf || error "final resync failed"
 	get_mirror_ids $tf
 
-	local csum=$($LFS mirror read -N ${mirror_array[0]} $tf | md5sum)
-	for id in ${mirror_array[@]:1}; do
+	local csum=$($LFS mirror read -N "${mirror_array[0]}" $tf | md5sum)
+
+	for id in "${mirror_array[@]:1}"; do
 		[ "$($LFS mirror read -N $id $tf | md5sum)" = "$csum" ] ||
 			error "checksum error for mirror $id"
 	done
@@ -2379,7 +3308,7 @@ test_201() {
 
 		[ $now -lt $((ts + delay)) ] && sleep $((ts + delay - now))
 
-		mirror_io resync $file
+		$LFS mirror resync $file
 		echo "$file resync done"
 	done
 
@@ -2434,7 +3363,7 @@ test_203() {
 	local new_id=$($LFS getstripe --mirror-id=2 -I $tf)
 	count=$($LFS getstripe --mirror-id=2 -c $tf) ||
 		error "getstripe count of mirror 2"
-	[[ x$oldid = x$newid ]] ||
+	[[ x$old_id = x$new_id ]] ||
 		error "mirror 2 changed ID from $old_id to $new_id"
 	[[ x$count = x1 ]] || error "mirror 2 stripe count $count is not 1"
 
@@ -2628,7 +3557,7 @@ run_test 204c "FLR write/stale/resync test with component removal"
 test_204d() {
 	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
 	[ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
-		skip "skipped for lustre < $SEL_VERSION"
+		skip "skipped for lustre < $SEL_VER"
 
 	local comp_file=$DIR/$tdir/$tfile
 	local found=""
@@ -2697,7 +3626,7 @@ run_test 204d "FLR write/stale/resync sel test with repeated comp"
 test_204e() {
 	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
 	[ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
-		skip "skipped for lustre < $SEL_VERSION"
+		skip "skipped for lustre < $SEL_VER"
 
 	local comp_file=$DIR/$tdir/$tfile
 	local found=""
@@ -2778,7 +3707,7 @@ run_test 204e "FLR write/stale/resync sel test with repeated comp"
 test_204f() {
 	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"
 	[ "$MDS1_VERSION" -lt $(version_code $SEL_VER) ] &&
-		skip "skipped for lustre < $SEL_VERSION"
+		skip "skipped for lustre < $SEL_VER"
 
 	local comp_file=$DIR/$tdir/$tfile
 	local found=""
@@ -2843,6 +3772,227 @@ test_204f() {
 }
 run_test 204f "FLR write/stale/resync sel w/forced extension"
 
+function test_205() {
+	local tf=$DIR/$tfile
+	local mirrors
+
+	$LFS setstripe -c1 $tf
+	$LFS mirror extend -N $tf
+	mirrors=$($LFS getstripe $tf | grep lcme_mirror_id | wc -l )
+	(( $mirrors == 2 )) || error "no new mirror was created?"
+
+	$LFS mirror extend -N --flags=prefer $tf
+	mirrors=$($LFS getstripe $tf | grep lcme_mirror_id | wc -l )
+	(( $mirrors == 3 )) || error "no new mirror was created?"
+
+	$($LFS getstripe $tf | grep lcme_flags: | tail -1 | grep -q prefer) ||
+		error "prefer flag was not set on the new mirror"
+}
+run_test 205 "lfs mirror extend to set prefer flag"
+
+function test_206() {
+	# create a new OST pool
+	local pool_name=$TESTNAME
+
+	create_pool $FSNAME.$pool_name ||
+		error "create OST pool $pool_name failed"
+	# add OSTs into the pool
+	pool_add_targets $pool_name 0 1 ||
+		error "add OSTs into pool $pool_name failed"
+
+	$LFS setstripe -c1 --pool=$pool_name $DIR/$tfile ||
+		error "can't setstripe"
+	$LFS mirror extend -N $DIR/$tfile ||
+		error "can't create replica"
+	if $LFS getstripe $DIR/$tfile | grep -q prefer ; then
+		$LFS getstripe $DIR/$tfile
+		error "prefer found"
+	fi
+	$LFS setstripe --comp-set --comp-flags=prefer -p $pool_name $DIR/$tfile || {
+		$LFS getstripe $DIR/$tfile
+		error "can't setstripe prefer"
+	}
+
+	if ! $LFS getstripe $DIR/$tfile | grep -q prefer ; then
+		$LFS getstripe $DIR/$tfile
+		error "no prefer found"
+	fi
+
+	# destroy OST pool
+	destroy_test_pools
+}
+run_test 206 "lfs setstripe -pool .. --comp-flags=.. "
+
+test_207() {
+       local file=$DIR/$tfile
+       local tmpfile=$DIR/$tfile-tt
+
+	[ $MDS1_VERSION -lt $(version_code 2.14.50) ] &&
+		skip "Need MDS version at least 2.14.50"
+
+	stack_trap "rm -f $tmpfile $file"
+
+	# generate data for verification
+	dd if=/dev/urandom of=$tmpfile bs=1M count=1 ||
+		error "can't generate file with random data"
+
+	# create a mirrored file with one stale replica
+	$LFS mirror create -N -S 4M -c 2 -N -S 1M -c -1 $file ||
+		error "create mirrored file $file failed"
+	get_mirror_ids $file
+	echo "mirror IDs: ${mirror_array[*]}"
+
+	dd if=$tmpfile of=$file bs=1M || error "can't copy"
+	get_mirror_ids $file
+	echo "mirror IDs: ${mirror_array[*]}"
+
+	drop_client_cache
+	cmp $tmpfile $file || error "files don't match"
+	get_mirror_ids $file
+	echo "mirror IDs: ${mirror_array[*]}"
+
+	# mirror creation should work fine
+	$LFS mirror extend -N -S 8M -c -1 $file ||
+		error "mirror extend $file failed"
+
+	get_mirror_ids $file
+	echo "mirror IDs: ${mirror_array[*]}"
+
+	drop_client_cache
+	$LFS mirror verify -v $file || error "verification failed"
+	cmp $tmpfile $file || error "files don't match"
+}
+run_test 207 "create another replica with existing out-of-sync one"
+
+function check_ost_used() {
+	local ddarg
+	local ost
+	local i
+	local file=$1
+	local io=$2
+
+	shift 2
+
+	cancel_lru_locks osc # to drop pages
+	cancel_lru_locks mdc # to refresh layout
+	# XXX: cancel_lru_locks mdc doesn't work
+	# XXX: need a better way to reload the layout
+	umount_client $MOUNT || error "umount failed"
+	mount_client $MOUNT || error "mount failed"
+
+	# refresh non-rotation status on MDTs
+	sleep 10
+	touch $DIR/$tfile-temp
+	rm -f $DIR/$tfile-temp
+	# refresh non-rotational status on the client
+	$LFS df >&/dev/null
+	sleep 2
+
+	$LCTL set_param osc.*.stats=clear >/dev/null
+	if [[ $io == "read" ]]; then
+		ddarg="if=$file of=/dev/null"
+	elif [[ $io == "write" ]]; then
+		ddarg="if=/dev/zero of=$file"
+	else
+		error "unknown type $io"
+	fi
+	dd $ddarg bs=2M count=1 || error "can't $io $file"
+	cancel_lru_locks osc
+
+	# check only specified OSTs got reads
+	for ((ost = 0; ost < $OSTCOUNT; ost++)); do
+		local nr=$($LCTL get_param -n \
+			osc.$FSNAME-OST000$ost-osc-[-0-9a-f]*.stats |
+			awk "/ost_$io/{print \$2}")
+		nr=${nr:-0}
+		if [[ " $* " =~ $ost ]]; then
+			(( nr > 0 )) || error "expected reads on $ost"
+		else
+			(( nr == 0 )) || error "unexpected $nr reads on $ost"
+		fi
+	done
+}
+
+test_208a() {
+	local tf=$DIR/$tfile
+	local osts=$(comma_list $(osts_nodes))
+
+	(( $OSTCOUNT >= 4 )) || skip "needs >= 4 OSTs"
+	(( $MDS1_VERSION >= $(version_code 2.14.55) )) ||
+		skip "Need MDS version at least 2.14.55"
+
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+
+	save_lustre_params $(get_facets OST) osd*.*OST*.nonrotational > $p
+	stack_trap "restore_lustre_params < $p; rm -f $p"
+
+	stack_trap "rm -f $tf"
+	$LFS setstripe -i0 -c1 $tf || error "can't setstripe"
+	dd if=/dev/zero of=$tf bs=2M count=1 || error "can't dd (1)"
+	$LFS mirror extend -N -c1 -o1 $tf || error "can't create mirror"
+	$LFS mirror extend -N -c2 -o 2,3 $tf || error "can't create mirror"
+	$LFS mirror resync $tf || error "can't resync"
+	$LFS getstripe $tf
+
+	log "set OST0000 non-rotational"
+	do_nodes $osts \
+		$LCTL set_param osd*.*OST0000*.nonrotational=1
+	check_ost_used $tf read 0
+
+	log "set OST0002 and OST0003 non-rotational, two fast OSTs is better"
+	do_nodes $osts \
+		$LCTL set_param osd*.*OST0002*.nonrotational=1 \
+			osd*.*OST0003*.nonrotational=1
+	check_ost_used $tf read 2 3
+
+	log "set mirror 1 on OST0001 preferred"
+	$LFS setstripe --comp-set -I 0x20001 --comp-flags=prefer $tf ||
+		error "can't set prefer"
+	check_ost_used $tf read 1
+}
+run_test 208a "mirror selection to prefer non-rotational devices for reads"
+
+test_208b() {
+	local tf=$DIR/$tfile
+	local osts=$(comma_list $(osts_nodes))
+
+	(( $OSTCOUNT >= 4 )) || skip "needs >= 4 OSTs"
+	(( $MDS1_VERSION >= $(version_code 2.14.55) )) ||
+		skip "Need MDS version at least 2.14.55"
+
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+
+	save_lustre_params $(get_facets OST) osd*.*OST*.nonrotational > $p
+	stack_trap "restore_lustre_params < $p; rm -f $p"
+
+	stack_trap "rm -f $tf"
+	$LFS setstripe -i0 -c1 $tf || error "can't setstripe"
+	dd if=/dev/zero of=$tf bs=2M count=1 || error "can't dd (1)"
+	$LFS mirror extend -N -c1 -o1 $tf || error "can't create mirror"
+	$LFS mirror extend -N -c2 -o 2,3 $tf || error "can't create mirror"
+	$LFS mirror resync $tf || error "can't resync"
+	$LFS getstripe $tf | grep -q flags.*stale && error "still stale"
+
+	log "set OST0000 non-rotational"
+	do_nodes $osts \
+		$LCTL set_param osd*.*OST0000*.nonrotational=1
+	check_ost_used $tf write 0
+	$LFS mirror resync $tf || error "can't resync"
+
+	log "set OST0002 and OST0003 non-rotational, two fast OSTs is better"
+	do_nodes $osts \
+		$LCTL set_param osd*.*OST0002*.nonrotational=1 \
+			osd*.*OST0003*.nonrotational=1
+	check_ost_used $tf write 2 3
+	$LFS mirror resync $tf || error "can't resync"
+
+	log "set mirror 1 on OST0001 preferred"
+	$LFS setstripe --comp-set -I 0x20001 --comp-flags=prefer $tf ||
+		error "can't set prefer"
+	check_ost_used $tf write 1
+}
+run_test 208b "mirror selection to prefer non-rotational devices for writes"
+
 complete $SECONDS
 check_and_cleanup_lustre
 exit_status