[124148] in North American Network Operators' Group
Re: NANOG Digest, Vol 26, Issue 122
daemon@ATHENA.MIT.EDU (Nathan Ward)
Thu Mar 25 00:30:35 2010
From: Nathan Ward <nanog@daork.net>
In-Reply-To: <8aeeaff61003242032k3f582889ub438d1d3b9726531@mail.gmail.com>
Date: Thu, 25 Mar 2010 17:29:59 +1300
To: nanOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 25/03/2010, at 4:32 PM, Rudolph Daniel wrote:
> Hi Joe
> You guys ever mount your racks on Barry mounts=3D vibration =
mounts..with so
> many shakes you may need to.
> RD
Nope.
Instead, we stick it at the top of big towers that buffer the vibrations =
as they go up the tower.
http://en.wikipedia.org/wiki/Sky_Tower
=46rom memory, we can thank/blame Joe for much of that.
Up that tower we have the main switches for the Auckland Peering =
Exchange (which has in the last few years become a bit more =
distributed), the (main, or only) POPs for a bunch of offshore transit, =
including Pacnet and Vocus, and also an F-root instance.
=46rom memory it's the highest AGL peering exchange in the world. =
Probably the highest F-Root instance in the world as well.
When there are high winds, the service lift that stops at the right =
levels cannot run, because it's on a longer shaft and so moves around a =
lot more. So you have to take the regular tourist glass-bottomed lift =
and then walk down about 6 flights to the comms floors.
Also in moderate winds any unfastened cabinet doors will move with the =
sway of the tower. Try going up there at 4am after watching a thriller.
Also the floor to ceiling glass about 2 feet from the bottom of the =
ladder you're at the top of a 50RU rack with. Plus the swaying building.
You get over your vertigo pretty quickly, or you just don't go up the =
tower more than once.
--
Nathan Ward=
