Improve ext4 file system performance for /DataVolume ea. /dev/md3

WD Legacy Products My Book Live Duo
1

by:  http://blog.smartlogicsolutions.com/2009/06/04/mount-options-to-improve-ext4-file-system-performance/

where i can add this line to fstab?

coz it seems /dev/md3 is not there…

can any one please identify to add thise nice code

noatime,data=writeback,barrier=0,nobh,errors=remount-ro 0 1

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Not sure if this can be done