From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Sachin Sant <sachinp@in.ibm.com>
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Subject: [linux-lvm] lvchange -r 256 lv-name does not work
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Date: Mon Dec  1 07:57:05 2003
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To: linux-lvm@sistina.com

Hi , i came across a problem with lvchange command.

I have a VG with 3 pv and a lv created using command 

lvcreate -i3 -I32 -l98 -nmy_lv my_vg
lvdisplay shows 1024 as the value for Read Ahead Sectors.

When i use the command lvchange to change the value of read ahead
sector with value more that or equal to 256 i get following error..

linux# lvchange -r 340 /dev/my_vg/my_lv
lvchange -- ERROR "Invalid Argument" read ahead sector change
linux#
linux#

Is there a limitation that read ahead value cannot be greater 
than 255?

Thanks
-Sachin