So which go file is correct this.

 

#!/bin/bash

# Start the Management Utility

/usr/local/sbin/emhttp &

sleep 30

for i in /dev/md*

do

  blockdev --setra 2048 $i

done

# Start up unmenu

/boot/unmenu/uu

 

or the one from wiki:

 

sleep 30; blockdev --setra 2048 /dev/md1

 

 

So which go file is correct this.

 

#!/bin/bash

# Start the Management Utility

/usr/local/sbin/emhttp &

sleep 30

for i in /dev/md*

do

  blockdev --setra 2048 $i

done

# Start up unmenu

/boot/unmenu/uu

 

or the one from wiki:

 

sleep 30; blockdev --setra 2048 /dev/md1

 

 

The oine in the wiki is out of date.

 

At one time, it was sufficient to use the "setra" command on only one of the "md" devices and it affected them all.  As of a number of releases ago, it was discovered that it must now be used on each "md" device in turn.

 

However, the most recent two or three releases, by default, set the read-ahead buffer to 1024. (old releases had it at 256)

 

SO... the wiki is out of date AND it might not have the same effect in improving performance it used to, since the default supplied value in unRAID is much better.  All in all, the first "go" script is fine... use it if you are going to set the read-ahead on all your disks.