How do I disable barrier on ext3 and ext4?

[stefeman]

I'm using 2x2TB HDD's on RAID1, I wish to disable barrier.

How can I do that, and verify it's disabled?

 

[dietmar]

You can configure specific mount option in /etc/fstab (after reboot verify with /proc/mounts)

 

[stefeman]

You can configure specific mount option in /etc/fstab (after reboot verify with /proc/mounts)

Im a total novice, can you explain me in simple terms what do I do and how do I do it? xD

Im renting dedi with my friends. this is completely non-professional.

 

[shantanu]

This is not recommended, do it at your own risk.
Disabling barriers it not a good idea.

File: /etc/fstab

Before:

/dev/pve/root / ext3 errors=remount-ro 0 1

After:

/dev/pve/root / ext3 nobarrier,errors=remount-ro 0 1