reproducer-CKSUM-errors-raidz1

gistfile1.txt

# misc functions
function is_linux() {
   if [[ "$(uname)" == "Linux" ]]; then
      return 0
   else
      return 1
   fi
}
function zpool_status() {
   zpool status -v $POOLNAME | grep 'scan:'
}
function zdb_dtl() {
   pool="$1"
   zdb -ddd $pool | sed -e '1,/Dirty/d' -e "/Dataset $pool/,\$d"
}
function zpool_offline() {
   pool="$1"
   device="$2"
   ret=1
   while [[ $ret -ne 0 ]]; do zpool offline $pool $device; ret=$?; sleep 1; done
   while [[ `zpool status $pool | egrep -c "$device.*OFFLINE"` -ne 1 ]]; do sleep 1; done
}
function zpool_online() {
   pool="$1"
   device="$2"
   ret=1
   while [[ $ret -ne 0 ]]; do zpool online $pool $device; ret=$?; sleep 1; done
   while [[ `zpool status $pool | egrep -c "$device.*ONLINE"` -ne 1 ]]; do sleep 1; done
}
function zpool_scrub() {
   pool="$1"
   ret=1
   while [[ $ret -ne 0 ]]; do zpool scrub $pool; ret=$?; sleep 1; done
   while [[ `zpool status $pool | egrep -c "scan: scrub in progress"` -eq 1 ]]; do sleep 1; done
}
# env
POOLNAME='testpool'
TMPDIR='/var/tmp'
DISKNUM=3
# os specific stuff
if is_linux; then
   TMPDIR='/var/tmp'
   mountpoint -q $TMPDIR || mount -t tmpfs tmpfs $TMPDIR
   for i in `seq 1 $DISKNUM`
   do
      rm -f $TMPDIR/zpool_$i.dat
      fallocate -l 64m $TMPDIR/zpool_$i.dat
   done
else
   TMPDIR='/tmp'
   for i in `seq 1 $DISKNUM`
   do
      rm -f $TMPDIR/zpool_$i.dat
      mkfile 64m $TMPDIR/zpool_$i.dat
   done
fi
# create the pool
zpool destroy -f $POOLNAME
zpool create -O mountpoint=$TMPDIR/$POOLNAME $POOLNAME raidz1 $TMPDIR/zpool_*.dat
zpool_status
# offline the first device
zpool_offline $POOLNAME $TMPDIR/zpool_1.dat
# write to the pool
dd if=/dev/urandom of=$TMPDIR/$POOLNAME/data.dat bs=1M count=128
# dump the DTL entries before the scrub
zdb_dtl $POOLNAME
# scrub the pool
zpool_scrub $POOLNAME
# dump the DTL entries after the scrub
zdb_dtl $POOLNAME
# online the first device
zpool_online $POOLNAME $TMPDIR/zpool_1.dat
zpool_status
# offline the second device
zpool_offline $POOLNAME $TMPDIR/zpool_2.dat
# scrub the pool
zpool_scrub $POOLNAME
# check the pool
zpool status -v $POOLNAME