SCSI controller location in memory 1

[jojo11]

We built a voice mail system that uses an Adaptec 2100S RIAD controller. The voice boards that we use require us to reserve 32K continuous space in memory. However, we would prefere 64K to make it bullet-prrof.
When we reserve a 32K block starting from D8000, everything works fine. When we try and reserve 64K block at D0000, the adaptec controller isn't showing up in the boot options, meaning it must require something in the D0000 32K block. When we look at the hardware in hwconfig, it shows that the controller is located in F400 meaning that adaptec is not running in that D block, but somehow needs it to boot. Does anyone have any idea as to what it is running in that D block and how to perhaps move or disable it?

Thanks.

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When you have spent all day trying to work through a problem, it is best to take a step back, reevaluate the problem, then work on the next project and never let the old one show its ugly face again!!

 

[PHV]

Take a look at the output of the

 hw -v

command.

Hope This Help
PH.

 

[jojo11]

We overcame the memory issue by simple math. We have the ability to reserve only C and D block. The on board video takes 48K, and the adaptec RAID controller takes 32K leaving only 48K for the voice boards. We ended up disabling the onboard video and throwing in a legacy card and D was all free.
The only issue now is being able to add a LAN card.

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When you have spent all day trying to work through a problem, it is best to take a step back, reevaluate the problem, then work on the next project and never let the old one show its ugly face again!!