5 LUSTRE=${LUSTRE:-$(dirname $0)/..}
6 . $LUSTRE/tests/test-framework.sh
10 MOUNT=${MOUNT:-/mnt/lustre}
12 LOG=$TMP/$(basename $0 .sh).log
18 sync; sleep 1; sync # to ensure we get up-to-date statfs info
20 STRIPECOUNT=$($LCTL get_param -n lov.*.activeobd | head -n 1)
21 ORIGFREE=$($LCTL get_param -n llite.*.kbytesavail | head -n 1)
22 MAXFREE=${MAXFREE:-$((400000 * $STRIPECOUNT))}
23 echo STRIPECOUNT=$STRIPECOUNT ORIGFREE=$ORIGFREE MAXFREE=$MAXFREE
24 if [ $ORIGFREE -gt $MAXFREE ]; then
25 skip "$0: ${ORIGFREE}kB free gt MAXFREE ${MAXFREE}kB, increase $MAXFREE (or reduce test fs size) to proceed"
29 export LANG=C LC_LANG=C # for "No space left on device" message
31 [ -f $LOG ] && error "log file wasn't removed?"
33 echo BEFORE dd started
36 # make sure we stripe over all OSTs to avoid OOS on only a subset of OSTs
37 $LFS setstripe $OOS -c $STRIPECOUNT
38 # add 20% of margin since the metadata overhead estimated in bavail might be
39 # too aggressive and we might be able to write more than reported initially
41 echo dd size $((ORIGFREE * 120 / 100))kB
42 if dd if=/dev/zero of=$OOS count=$((ORIGFREE * 120 / 100)) bs=1k 2> $LOG; then
43 echo "ERROR: dd did not fail"
47 [ ! -s "$LOG" ] && error "LOG file is empty!"
49 if [ "`grep -c 'No space left on device' $LOG`" -ne 1 ]; then
50 echo "ERROR: dd not return ENOSPC"
55 # flush cache to OST(s) so avail numbers are correct
60 echo "no OSTs are close to full"
64 RECORDSOUT=`grep "records out" $LOG | cut -d + -f1`
65 FILESIZE=`ls -l $OOS | awk '{ print $5 }'`
66 if [ -z "$RECORDSOUT" ]; then
67 echo "ERROR: no blocks written by dd?"
70 elif [ "$RECORDSOUT" -ne $((FILESIZE / 1024)) ]; then
71 echo "ERROR: blocks written by dd not equal to the size of file"
75 #$LCTL debug_daemon stop
77 [ $SUCCESS != 0 ] && echo LOG file && sed "s/^/LOG: /" $LOG
82 wait_delete_completed 300
84 if [ $SUCCESS -eq 1 ]; then