Subject: Re: RZ23: What is it good for?
To: None <>
From: Carl Lowenstein <>
List: port-vax
Date: 05/21/2003 20:12:55
> Date: Wed, 21 May 2003 20:41:23 -0400
> From: "Charles H. Dickman" <>
> To: port-vax <>
> Subject: RZ23: What is it good for?
> I couple of years ago I got a VS3100M30 with 2 RZ23 SCSI disks. They 
> both seem to work fine in that VS, but I have NEVER gotten them to 
> function with any other SCSI controller. Not that I have spent the 
> intervening years hunting for a place to use it, but I know that I have 
> tried a CQD-220/M for example and a couple Adaptec SCSI boards in a PC 
> and a sound card SCSI once.
> The RZ23 is about 100MB. Pretty small really, but I am curious if this 
> is typical. Is it really that picky about the controller?

Are the disks actually spinning up?  DEC typically sent a spinup signal
to the disk drives at boot time.  Most DEC disks can be jumpered to
spin up when power is applied rather than waiting for a command from
the controller.  Some SCSI host adapters can be configured to send
the spinup command.

    carl lowenstein         marine physical lab     u.c. san diego