# # Test basic DDF functionality. # # Create a container with 5 drives # create a small raid0 across them all, # then a small raid10 using 4 drives, then a 2disk raid1 # and a 3disk raid5 using the remaining space # # add some data, tear down the array, reassemble # and make sure it is still there. set -e . tests/env-ddf-template sda=$(get_rootdev) || exit 1 mdadm -CR /dev/md/ddf0 -e ddf -n 5 $dev8 $dev9 $dev10 $dev11 $dev12 mdadm -CR r5 -l5 -n5 /dev/md/ddf0 -z 5000 if mdadm -CR r5 -l1 -n2 /dev/md/ddf0 -z 5000 then echo >&2 create with same name should fail ; exit 1 fi mdadm -CR r10 -l10 -n4 -pn2 /dev/md/ddf0 -z 5000 mdadm -CR r1 -l1 -n2 /dev/md/ddf0 mdadm -CR r0 -l0 -n3 /dev/md/ddf0 testdev /dev/md/r5 4 5000 512 testdev /dev/md/r10 2 5000 512 # r0/r10 will use 4608 due to chunk size, so that leaves 23552 for the rest testdev /dev/md/r1 1 23552 64 testdev /dev/md/r0 3 23552 512 dd if=$sda of=/dev/md/r0 || true dd if=$sda of=/dev/md/r10 || true dd if=$sda of=/dev/md/r1 || true dd if=$sda of=/dev/md/r5 || true s0=`sha1sum /dev/md/r0` s10=`sha1sum /dev/md/r10` s1=`sha1sum /dev/md/r1` s5=`sha1sum /dev/md/r5` mdadm -Ss mdadm -A /dev/md/ddf0 $dev8 $dev9 $dev10 $dev11 $dev12 mdadm -I /dev/md/ddf0 udevadm settle s0a=`sha1sum /dev/md/r0` s10a=`sha1sum /dev/md/r10` s1a=`sha1sum /dev/md/r1` s5a=`sha1sum /dev/md/r5` if [ "$s0" != "$s0a" ]; then echo r0 did not match ; exit 1; fi if [ "$s10" != "$s10a" ]; then echo r10 did not match ; exit 1; fi if [ "$s1" != "$s1a" ]; then echo r1 did not match ; exit 1; fi if [ "$s5" != "$s5a" ]; then echo r5 did not match ; exit 1; fi # failure status just means it has completed already, so ignore it. mdadm --wait /dev/md/r1 || true mdadm --wait /dev/md/r10 || true mdadm --wait /dev/md/r5 || true mdadm -Dbs > /var/tmp/mdadm.conf mdadm -Ss # Now try to assemble using mdadm.conf mdadm -Asc /var/tmp/mdadm.conf check nosync # This failed once. The raid5 was resyncing. udevadm settle mdadm -Dbs | sort > /tmp/mdadm.conf sort /var/tmp/mdadm.conf | diff /tmp/mdadm.conf - mdadm -Ss # and now assemble fully incrementally. for i in $dev8 $dev9 $dev10 $dev11 $dev12 do mdadm -I $i -c /var/tmp/mdadm.conf done check nosync udevadm settle mdadm -Dbs | sort > /tmp/mdadm.conf sort /var/tmp/mdadm.conf | diff /tmp/mdadm.conf - mdadm -Ss rm /tmp/mdadm.conf /var/tmp/mdadm.conf