Re: Benchmarks: Linux Kernel RAID vs a Hardware RAID setup

"Mr. James W. Laferriere" <babydr@xxxxxxxxxxxxxxxx> · Tue, 15 Jul 2008 18:52:59 -0800 (AKDT)

	Hello Richard ,

On Wed, 16 Jul 2008, Richard Scobie wrote:

Mr. James W. Laferriere wrote:

    At what level (2.6.26) does one set readahead ?

    I've searched 'mount' ,  'mdadm' ,  'Documentation/md.txt' .  Where 

else should I look ?  Obviously I am missing something .

Hi Jim,

/sbin/blockdev --setra 65536 /dev/md5 gets it done here.

Regards,
Richard

	This does not bode well for my memory ,  It's already in my 

optimizations shell script for startup .  I thought it looked very familiar , 

But the usual places didn't bring it up .

	Thank you ,  JimL
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