5 LUSTRE=${LUSTRE:-$(dirname $0)/..}
6 . $LUSTRE/tests/test-framework.sh
10 MOUNT=${MOUNT:-/mnt/lustre}
12 MOUNT2=${MOUNT2:-${MOUNT}2}
15 OOSFALLOCATE=$MOUNT/oosfile_fallocate
16 LOG=$TMP/$(basename $0 .sh).log
21 rm -f $OOS $OOS2 $OOSFALLOCATE $LOG $LOG2
24 sync; sleep_maxage; sync # to ensure we get up-to-date statfs info
26 STRIPECOUNT=$($LCTL get_param -n lov.*.activeobd | head -n 1)
27 ORIGFREE=$($LCTL get_param -n llite.*.kbytesavail | head -n 1)
28 NUMBER_OF_FREE_BLOCKS=4096 # for dd command keep only 4MB space
29 FALLOCATE_SIZE=$(( $ORIGFREE - $NUMBER_OF_FREE_BLOCKS )) # space to fill FS
30 if check_fallocate_supported; then
31 MAXFREE=${MAXFREE:-$((1048576000 * $STRIPECOUNT))}
33 MAXFREE=${MAXFREE:-$((400000 * $STRIPECOUNT))}
35 echo STRIPECOUNT=$STRIPECOUNT ORIGFREE=$ORIGFREE MAXFREE=$MAXFREE
38 if (( $ORIGFREE > $MAXFREE )); then
39 skip "$0: ${ORIGFREE}KB free > ${MAXFREE}KB, increase MAXFREE (or reduce fs size)"
43 export LANG=C LC_LANG=C # for "No space left on device" message
45 # make sure we stripe over all OSTs to avoid OOS on only a subset of OSTs
46 $LFS setstripe $OOS -c $STRIPECOUNT
47 $LFS setstripe $OOS2 -c $STRIPECOUNT
48 $LFS setstripe $OOSFALLOCATE -c $STRIPECOUNT
50 stack_trap "rm -f $OOS $OOS2 $OOSFALLOCATE; wait_delete_completed"
52 # skip ZFS due to https://github.com/openzfs/zfs/issues/326
53 # TODO: check support for zfs set reservation=10G to reduce free space
54 if check_fallocate_supported; then
55 if ! fallocate -l $FALLOCATE_SIZE $OOSFALLOCATE 2>> $LOG; then
56 echo "ERROR: fallocate -l $FALLOCATE_SIZE $OOSFALLOCATE failed"
61 NUMBER_OF_IO_BLOCKS=$((3 * $ORIGFREE / 4 + 100)) # use 75% or 3/4 of free space
62 dd if=/dev/zero of=$OOS count=$NUMBER_OF_IO_BLOCKS bs=1k 2>> $LOG &
64 if dd if=/dev/zero of=$OOS2 count=$NUMBER_OF_IO_BLOCKS bs=1k 2>> $LOG2; then
65 echo "ERROR: dd2 did not fail"
69 echo "ERROR: dd did not fail"
73 [[ -s "$LOG" ]] || error "LOG file is empty!"
74 [[ -s "$LOG2" ]] || error "LOG2 file is empty!"
76 if (( $(cat $LOG $LOG2 | grep -c 'No space left on device') != 2 )); then
77 echo "ERROR: dd not return ENOSPC"
81 # flush cache to OST(s) so avail numbers are correct
85 echo "no OSTs are close to full"
89 RECORDSOUT=$(($(grep "records out" $LOG | cut -d+ -f 1) +
90 $(grep "records out" $LOG2 | cut -d+ -f 1)))
92 FILESIZE=$(($(stat -c '%b*%B' $OOS) + $(stat -c '%b*%B' $OOS2)))
93 if (( $RECORDSOUT != $FILESIZE / 1024 )); then
94 echo "ERROR: dd blocks $RECORDSOUT != file size $((FILESIZE/1024))"
98 if (( $RECORDSOUT < $ORIGFREE * 99 / 100 )); then
99 echo "ERROR: dd blocks $RECORDSOUT != file size $((FILESIZE/1024))"
106 if [ $SUCCESS -eq 1 ]; then