find mysqldir -type f -exec gfs_tool setflag directio {} \;

find mysqldir -type d -exec gfs_tool setflag inherit_directio {} \;

Fungerade inte och då tar man bort det med...

find /srv/mysql -type f -exec gfs_tool clearflag directio {} \; &

find /srv/mysql -type d -exec gfs_tool clearflag inherit_directio {} \; &