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- Newsgroups: comp.sys.next.misc
- Path: sparky!uunet!proforma!jgg
- From: jgg@proforma.com (J. G. Gregory)
- Subject: Re: Placing NeXTstation Slab on its Side
- Message-ID: <1992Aug30.003036.892@proforma.com>
- Sender: jgg@proforma.com
- Organization: Pro Forma
- References: <Btr2x3.EtE@usenet.ucs.indiana.edu>
- Date: Sun, 30 Aug 1992 00:30:36 GMT
- Lines: 30
-
- In article <Btr2x3.EtE@usenet.ucs.indiana.edu>
- tagreen@lothario.cica.indiana.edu (Todd A Green) writes:
- >
- >I highly doubt your bearings will go bad by turning a drive on its
- >side...
- >I've always heard though, that the disk should be formatted in the
- >orientation that it will resting. (Though, this could just be
- >folklore).
- >
- >Also I'd be more worried about air flow though the slab if you turned
- >it on it side. Anyone know if the slab will still be properly cooled?
- >
-
- In a former life as a mechanical engineer who worked at packaging small
- systems, I can tell you that the small form-factor disk drive makers do not
- specify an orientation. They cannot know how their disks are to be used, and
- the physics of what goes on inside are such that gravity is not significant.
- (That's in a static state. In a vibrating situation, they can be very
- sensitive to the direction of vibration.)
-
- Cooling is the big issue. Don't put anything within 3-4 inches (8-10 cm) of a
- forced convection (i.e. fan) system inlet or outlet. That means if you stand
- it up, don't block the vents. I don't know how NeXT slabs are cooled. But it
- is 99% likely they use side vents, which means you need a stand.
-
- NeXT does a great job with mechanical packaging. They are the best packaging
- examples I have seen in the workstation/PC market.
-
- End of speech.
- --J Gregory
-