I need to know this because of this:
Add the data=writeback mounting option if you formatted the disk without journaling. Otherwise add data=ordered which sould be a good compromise between full journaling and none at all.
from the SSDChecklist.
To turn off journal and speed things up on a ext4 partition follow these steps:
Example uses sda1 device, this does not mean you should do it on your main disk, replace sda1 with the disk you are preparing, data loss will happen!
Create ext4 fs on /dev/sda1 disk
To delete journal remove has_journal option, this will disable etx4 journal
Check if everything is ok
Done, recommended for speed applications only! Gl
The following command executed as superuser, and using as a parameter the correct partition
should give you an output like the following
where you can read