DEC disk drive power consumption (was Re: QBUS SCSI card...)

From: vance_at_neurotica.com <(vance_at_neurotica.com)>
Date: Mon Feb 24 21:57:48 2003

On Mon, 24 Feb 2003, Zane H. Healy wrote:

> > > I do know that my MVIII uses a hack of a lot less power booting
> > > off a remote disk than it did spinning up 3 MFM drives. I can only
> > > assume that the RAxx use even more juice.
> >
> > Dunno about anything as new as an RA9x, but the RA81 draws 30A surge
> > current (which is why they have that daisy-chain power sequencer
> > port), and 8A steady-state. That's a big honkin' motor in there, plus
> > several square feet of controllers.
>
> I'd recommend RA7x instead. The RA9x drives are 8", while the RA7x
> drives are 5.25".

I know for a fact that there is a *large* difference in the power
consumption.

Peace... Sridhar
Received on Mon Feb 24 2003 - 21:57:48 GMT