On Wed, 7 Aug 2013 22:38:03 +0200 mwilck@xxxxxxxx wrote:
> This is one more unit test for failure/recovery, this time with
> double redundancy, which isn't covered by the other tests.
> ---
> tests/10ddf-fail-two-spares | 85 +++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 85 insertions(+), 0 deletions(-)
> create mode 100644 tests/10ddf-fail-two-spares
>
> diff --git a/tests/10ddf-fail-two-spares b/tests/10ddf-fail-two-spares
> new file mode 100644
> index 0000000..cc2cbb4
> --- /dev/null
> +++ b/tests/10ddf-fail-two-spares
> @@ -0,0 +1,85 @@
> +# Simulate two disks failing shorty after each other
> +. tests/env-ddf-template
> +tmp=$(mktemp /tmp/mdtest-XXXXXX)
> +
> +mdadm --zero-superblock $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
> +mdadm -CR $container -e ddf -l container -n 6 \
> + $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
> +
> +#fast_sync
> +
> +mdadm -CR $member0 -l raid6 -n 4 $dev10 $dev11 $dev12 $dev13 -z 16384
> +#$dir/mdadm -CR $member0 -l raid6 -n 4 $dev10 $dev11 $dev12 $dev13 -z 16384 \
> +# >/tmp/mdmon.txt 2>&1
> +mdadm -CR $member1 -l raid10 -n 4 $dev10 $dev11 $dev12 $dev13 -z 16384
> +
> +dd if=/dev/sda of=$member0 bs=1M
> +dd if=/dev/sda of=$member1 bs=1M skip=16
> +
> +check wait
> +
> +sum0=$(sha1sum $member0)
> +sum1=$(sha1sum $member1)
> +
> +mdadm --fail $member1 $dev11
> +sleep 1
> +mdadm --fail $member1 $dev12
> +
> +# We will have 4 resync procedures, 2 spares for 2 arrays.
> +mdadm --wait $member1 $member0
> +mdadm --wait $member1 $member0
> +
> +devs0="$(get_raiddisks $member0)"
> +devs1="$(get_raiddisks $member1)"
> +expected="$dev10
> +$dev13
> +$dev8
> +$dev9"
> +
> +ret=0
> +if [ "$(echo "$devs0" | sort)" != "$expected" \
> + -o "$(echo "$devs1" | sort)" != "$expected" ]; then
> + echo ERROR: unexpected members
> + echo $member0: $devs0
> + echo $member1: $devs1
> + ret=1
> +fi
> +
> +mdadm -E $dev10 >$tmp
> +if ! grep -q 'state\[0\] : Optimal, Consistent' $tmp; then
> + echo ERROR: $member0 should be optimal in meta data
> + ret=1
> +fi
> +if ! grep -q 'state\[1\] : Optimal, Consistent' $tmp; then
> + echo ERROR: $member1 should be optimal in meta data
> + ret=1
> +fi
> +if [ x"$(grep -c active/Online $tmp)" != x4 ]; then
> + echo ERROR: expected 4 online disks
> + ret=1
> +fi
> +if [ x"$(grep -c "Offline, Failed" $tmp)" != x2 ]; then
> + echo ERROR: expected 2 failed disks
> + ret=1
> +fi
> +
> +sum0a=$(sha1sum $member0)
> +sum1a=$(sha1sum $member1)
> +
> +if [ "$sum0" != "$sum0a" -o "$sum1" != "$sum1a" ]; then
> + echo ERROR: checksum mismatch
> + ret=1
> +fi
> +
> +if [ $ret -eq 1 ]; then
> + cat /proc/mdstat
> + cat $tmp
> +fi
> +
> +[ -f /tmp/mdmon.txt ] && {
> + cat /tmp/mdmon.txt
> + rm -f /tmp/mdmon.txt
> +}
> +rm -f $tmp
> +
> +[ $ret -eq 0 ]
Applied, thanks.
NeilBrown
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