Help! Sun Ultra 1 HD replacement?

[Doc Shipley]

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