aic7xxx TCQ settings?

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I'm using 2.4.3 vanilla with aic7xxx (aic7880 onboard)
I set the max # of TCQ commands per device setting to 50..what's a really
good setting for this, just the default of 253?

In /proc/scsi/aic7xxx/0 i see for my drives these numbers:
	Commands Queued 140000
	Commands Active 0
	Command Openings 253
	Max Tagged Openings 253

and the Queued number keeps increasing, never decreasing. is it supposed
to do this? 
Sometimes Commands Active is at 50, but mostly 0

Thanx,

-Tony
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Anthony J. Biacco                       Network Administrator/Engineer
thelittleprince at asteroid-b612.org       Intergrafix Internet Services

    "Dream as if you'll live forever, live as if you'll die today"
http://www.asteroid-b612.org                http://www.intergrafix.net
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