Help! Sun Ultra 1 HD replacement?

[Ram Meenakshisundaram]

I heard somewhere that even if you are only using one drive, you should
STILL add a dummy drive in the second slot so that airflow is better.  I
currently have two 9.1GB drives on my Ultra 2 and Solaris 10 is a pig.  I am
planning on using one of my new drives for Solaris and still leave one of
the 9.1GB drives as /export/home.  The other drive is going into my PC as a
dual Linux/Solaris installation along side my IDE-based Windows
installation...

Ram

> -----Original Message-----
> From: Doc Shipley [mailto:doc at mdrconsult.com] 
> Sent: Monday, August 29, 2005 2:47 PM
> To: General at mdrconsult.com; On-Topic and Off-Topic Posts
> Subject: Re: Help! Sun Ultra 1 HD replacement?
> 
> 
> listmailgoeshere at gmail.com wrote:
> 
> > On 8/29/05, Ram Meenakshisundaram <RMeenaks at olf.com> wrote:
> > 
> >>Just grab any 80-pin ultra scsi drive.  Just be careful about heat 
> >>dissipation though.  I just bought two 73Gb scsi drives for 
> my Ultra 2 
> >>on ebay for $150.  Make sure whatever drive you buy that it is a 1" 
> >>height drive otherwise it will NOT fit in the drive cage.
> > 
> > 
> > Incorrect. The U1 drive cage will in fact hold a 1.6" drive in the 
> > lower slot.
> 
>    Not necessarily.  *Some* Ultra1 systems will accept a 1.6" 
> disk, but 
> some won't.  That's a physical limitation of the backplane, 
> rail guides 
> and SCA connector, not a question of "supported configuration".
> 
> > I wouldn't want to run a 1.6" and a 1" together in there for heat 
> > dissipation reasons (they will fit, I've tried, but they 
> end up *very* 
> > close together), however if the machine only has one disk in it, a 
> > 1.6" in the bottom slot will be fine.
> 
>    Heat is likely to be an issue with 2 high-RPM disks, even 
> with a pair 
> of 1" drives.  Air flow is side-to-side, so making sure there's ample 
> space on both sides of the system helps quite a lot.
> 
> 
> 	Doc
>