Here is a quick and dirty script to remove failed MPIO paths. You can end up with failed paths if you make some SAN connection changes.
for disk in `lsdev -Cc disk | grep 2107 | awk '{ print $1 }'`
do
for path in `lspath -l $disk -F "status connection" | grep Failed | awk '{ print $2 }'`
do
echo $disk
rmpath -l $disk -w $path -d
done
done