Subject: Re: CMD qbus SCSI controller strangeness
To: Chuck McManis <cmcmanis@mcmanis.com>
From: None <allisonp@world.std.com>
List: port-vax
Date: 08/10/2000 20:16:34
On Thu, 10 Aug 2000, Chuck McManis wrote:

> >except for one item.  It doesn't seem to like larger disks.  I started
> >with an RZ55, although I either need jumper wisdom or the drive is dead
> >(didn't spin up, couldn't see the drive anywhere on the bus).

it should see the drive spinup or not.  Something else if wrong.
 
> This is the 'spin up on command' problem. If you can't jumper the drive to 
> start spinning on power up you're hosed for now. Sometimes a 'sho dev' will 
> start up the drives.

My RZ56s work fine with CMD200.

> No, its just a bit older generation than most. Of all the SCSI controllers 
> I've tried on Q-bus machines the CMD has given me the least problems. There 
> is also the issue that if you're CMD wasn't told to "autosize" the drives 
> then it might have stored some drive geometry in its NVRAM that is bogus.

I'm told this can be problematic too.


Allison