| if mdadm -CfR $md0 -l 5 -n3 $dev0 $dev1 $dev2 --write-zeroes ; then | |
| check nosync | |
| echo check > /sys/block/md0/md/sync_action; | |
| check wait | |
| elif grep "zeroing [^ ]* failed: Operation not supported" \ | |
| $targetdir/stderr; then | |
| echo "write-zeros not supported, skipping" | |
| else | |
| echo >&2 "ERROR: mdadm return failure without not supported message" | |
| exit 1 | |
| fi |