nanog mailing list archives

Re: power strip with individually monitorable outlet current


From: Christopher McCrory <chrismcc () pricegrabber com>
Date: Sun, 07 Aug 2005 17:48:22 -0700


On Sun, 2005-08-07 at 14:47 -0400, Justin Kreger wrote:
At the now defunct redundant.com we used baytech strips with the ds-3 
(not the circuit) modules to snmp enable the strips.  We were able to 
control each port, and monitor load on each port.

http://www.baytech.net/

I think we used the RPC22s and the DS-3 console server combo.  It was a 
few years ago so my memory of what we did is a bit fuzzy.  Regarding how 
accurate the modules are, the baytech gear would only be accurate to the 
tenths if my memory serves me, but they may have improved that since mid 
'03.


A while ago I found that I needed power usage stats also (these new P4
Zeons suck up a lot of power :).  I got some baytech PDUs with LEDs and
console access (forget which specific model).  Looked very cool.  Except
that I am in Los Angeles county.  LA takes a dim view of selling
equipment that is not UL certified.  Apparently it is illegal to both
sell and operate :(  After several months of "We should have it soon", I
bought APC units.

The APCs (AP7901) are very nice. snmp and ftpable stats.  They even do
ssh!

No individual per ports stats, and only to 1/10th amp.  But no more
popped circuit breakers from new servers.


http://www.apc.com/resource/include/techspec_index.cfm?base_sku=AP7901



-Justin

On Sun, 7 Aug 2005, 
Mike Leber wrote:



There have been suggestions of good SNMP monitorable power strips here
before, however I'm looking for a power strip with individually
monitorable outlet current (via SNMP).

I've searched google for quite a while and can't seem to separate out such
a beast from all the remote power management strips that just monitor
aggregate usage.

I have an application where I need to record the variation in power
consumption for individual devices over time.  I need to monitor about 30
devices in 4 cabinets (8 devices per cabinet or so) in and have a budget
of $4000.  I'd like to be able to see current in milliamps or 10 milliamp
increments.  I'm looking for an off the shelf device.

If anybody can help me I'd certainly appreciate it.

+----------------- H U R R I C A N E - E L E C T R I C -----------------+
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-- 
Christopher McCrory
 "The^W One of the guys that keeps the servers running"

chrismcc () pricegrabber com
 http://www.pricegrabber.com

Let's face it, there's no Hollow Earth, no robots, and
no 'mute rays.' And even if there were, waxed paper is
no defense.  I tried it.  Only tinfoil works.


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