[179892] in North American Network Operators' Group

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Re: Rasberry pi - high density

daemon@ATHENA.MIT.EDU (Clay Fiske)
Mon May 11 16:37:53 2015

X-Original-To: nanog@nanog.org
From: Clay Fiske <clay@bloomcounty.org>
In-Reply-To: <3add94118911fb463b174ab24631657b@thefnf.org>
Date: Mon, 11 May 2015 13:37:45 -0700
To: charles@thefnf.org
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org


> On May 8, 2015, at 10:24 PM, charles@thefnf.org wrote:
>=20
> Pi dimensions:
>=20
> 3.37 l (5 front to back)
> 2.21 w (6 wide)
> 0.83 h
> 25 per U (rounding down for Ethernet cable space etc) =3D 825 pi
>=20
> Cable management and heat would probably kill this before it ever =
reached completion, but lol=E2=80=A6


This feels like it should be a Friday thread. :)

If you=E2=80=99re really going for density:

- At 0.83 inches high you could go 2x per U (depends on your mounting =
system and how much space it burns)
- I=E2=80=99d expect you could get at least 7 wide if not 8 with the =
right micro-USB power connector
- In most datacenter racks I=E2=80=99ve seen you could get at least 8 =
deep even with cable breathing room

So somewhere between 7x8x2 =3D 112 and 8x8x2 =3D 128 per U. And if you =
get truly creative about how you stack them you could probably beat that =
without too much effort.

This doesn=E2=80=99t solve for cooling, but I think even at these =
numbers you could probably make it work with nice, tight cabling.


-c



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