[164026] in North American Network Operators' Group
Re: PDU recommendations
daemon@ATHENA.MIT.EDU (Luke S. Crawford)
Sun Jun 23 20:58:06 2013
Date: Sun, 23 Jun 2013 17:57:47 -0700
From: "Luke S. Crawford" <lsc@prgmr.com>
To: nanog@nanog.org
In-Reply-To: <46c24a43-6bd8-44d7-8d2b-d10b47bb105d@email.android.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I also have had good experience with (used) servertech/century/power
tower (I think all the same brand) - very inexpensive; if you are in
santa clara I have some spare 2u 16 port 208v (20a/c19) units.
Here is something a buddy wrote up when we were wiring them to the
user-accessable power on/off menu:
http://blog.prgmr.com/xenophobia/2012/02/notes-on-setting-up-a-sentry-p.html
My new rack is all avocent PM3001-401 units. Used, of course; but
the feature I was after was per-port power monitoring.
I haven't quite gotten 'em all the way figured out yet. One thing I
see as a negative (but might be positive?) is that they have fuses, not
breakers. I don't know if this provides better protection; I do know
that when my buddy overloaded one of them in testing, I had to replace
fuses, rather than just switching a breaker back. (also, when a
different buddy plugged a ancient desktop (so old the PSU wasn't
auto-switch) with the power input switch set to 110 in, it blew some of
the fuses in the PDU (and took out the rack) - it didn't damage any of
the other servers on the pdu (other than taking out the PDU; but
everything came back up when I swapped it with my spare.)
Also note, uh, the servertech and the avocent and I think all the other
PDUs I've seen can reboot the management interface without flipping the
outlets. I did it a bunch when I was getting familiar with the avocent.
Yeah. I think I need to give fewer buddies access to production.
Nobody takes hardware seriously enough. I can find people I trust with
root, and that trust doesn't seem misplaced. But I let them touch the
hardware? and they fuck it up. So I end up doing almost all the
hardware stuff myself.
On 06/23/2013 04:48 PM, Trey Valenta wrote:
> I'll also throw out recommendations for ServTech PDUs. They have an affordable line of PDUs with static transfer switches that are particularly attractive for all your single-power-supply devices.
