power strip with individually monitorable outlet current
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 -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
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. -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 -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
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.
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 -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
-- 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.
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
don't know the 7901, but i can sure vouch for the 7900 which joel recommended to me. it has saved me from using remote hands to whack a wedged server sooooo many times. randy
Randy Bush wrote:
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
don't know the 7901, but i can sure vouch for the 7900 which joel recommended to me. it has saved me from using remote hands to whack a wedged server sooooo many times.
randy
The 7900 is 15A while the 7901 is 20A. They are both part of a family of Rack PDUs. Roy Engehausen
--On August 7, 2005 3:01:25 PM -1000 Randy Bush <randy@psg.com> wrote:
don't know the 7901, but i can sure vouch for the 7900 which joel recommended to me. it has saved me from using remote hands to whack a wedged server sooooo many times.
Same thing. AP7901 is a NEMA L5-20P/5-20R and the AP7900 is a NEMA 5-15P/5-15R. 20A/15A respectively. APC doesn't sell any individually metered units. Baytech does (as pointed out elsewhere). I don't know about any others myself.
On Sun, 7 Aug 2005, 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.
I had moderate success with this suggestion. Their technical support said the only product they had that does this is the 4 outlet RPC5 or RPC6 (ethernet version vs serial version). Unfortunately, it costs $644 each (lowest price I've found so far) and accomplishes it's individual monitoring by replicating power in and power out plus an ethernet port 4 times. Still, if it's the only one out there I guess they win (although at $150 per outlet, ouch, that goes over my $4000 budget for this). http://www.baytech.net/products/prodlist.php?show=RPC5 Mike.
-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 -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
+----------------- H U R R I C A N E - E L E C T R I C -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
On Tue, Aug 09, 2005 at 04:37:04AM -0700, Mike Leber wrote:
On Sun, 7 Aug 2005, 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.
I had moderate success with this suggestion. Their technical support said the only product they had that does this is the 4 outlet RPC5 or RPC6 (ethernet version vs serial version). Unfortunately, it costs $644 each (lowest price I've found so far) and accomplishes it's individual monitoring by replicating power in and power out plus an ethernet port 4 times. Still, if it's the only one out there I guess they win (although at $150 per outlet, ouch, that goes over my $4000 budget for this).
well, you can save a bunch on a used one ($125 -- buy-it-now!): eBay: BAYTECH DS4-RPC REMOTE POWER w/DS72 & DS74 DAC MODULES (item 5797338782) does western telematic make anything that might fit your needs? -- Henry Yen Aegis Information Systems, Inc. Senior Systems Programmer Hicksville, New York
We were using RPC14s and the RPC22s. Both worked well. The RPC14s were a bit odd to setup though. For me, It would make a bit more sense to use the RPC14s and connect them up to the serial access server (DS series modules) and then do snmp connections to the serial connections to the power strip. It works well, but is awful slow. The price does seem a bit high from when I actully shopped around for baytech gear a little over a year ago. http://www.baytech.net/products/prodlist.php?show=RPC14 http://www.baytech.net/products/showprod.php?prod=DS3IPS I'm going try and remember more on how we did it. I think I have module numbers and snmp string information someplace. -Justin On Tue, 9 Aug 2005, Mike Leber wrote:
On Sun, 7 Aug 2005, 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.
I had moderate success with this suggestion. Their technical support said the only product they had that does this is the 4 outlet RPC5 or RPC6 (ethernet version vs serial version). Unfortunately, it costs $644 each (lowest price I've found so far) and accomplishes it's individual monitoring by replicating power in and power out plus an ethernet port 4 times. Still, if it's the only one out there I guess they win (although at $150 per outlet, ouch, that goes over my $4000 budget for this).
http://www.baytech.net/products/prodlist.php?show=RPC5
Mike.
-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 -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
+----------------- H U R R I C A N E - E L E C T R I C -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
Speaking on Deep Background, the Press Secretary whispered:
I had moderate success with this suggestion. Their technical support said the only product they had that does this is the 4 outlet RPC5 or RPC6 (ethernet version vs serial version). Unfortunately, it costs $644 each (lowest price I've found so far) and accomplishes it's individual monitoring by replicating power in and power out plus an ethernet port 4 times. Still, if it's the only one out there I guess they win (although at $150 per outlet, ouch, that goes over my $4000 budget for this).
Jeeze... If you can live w/o true watts, I'd bet someone has a Hall effect sensor package that could tell you just amps. Such would be non-contact and would thus skirt the US issue, I'd bet. Trouble is, switcher loads are not nice & linear & low PF.... Still; I think I'll ask in sci.electronics design... -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
On Tue, 9 Aug 2005, David Lesher wrote:
If you can live w/o true watts, I'd bet someone has a Hall effect sensor package that could tell you just amps. Such would be non-contact and would thus skirt the US issue, I'd bet.
I'd love to hear about an actual purchaseable lower cost per circuit version of this as well. For a separate project I looked around for this, it's generally called branch circuit monitoring, and the most widely used standard is called Modbus (which uses RS 485 serial) that also has a version called Modbus TCP (which uses ethernet). The Modbus TCP stuff looks pretty nice with it's data in XML format (easy to parse), and there are boxes that will convert regular Modbus to Modbus TCP. The two main sources of this are Veris and Square D. Veris: http://www.veris.com/product.asp?idMainCategory=45&idCategory=106&idProduct=98 Square D: http://ecatalog.squared.com/catalog/173/html/sections/04/17304008.html At $2588 per 42 position breaker panel it works out to $61 a circuit. I'd like to find this for cheaper as well so that we can just put it everywhere on every panel and not worry about it. Here is an example of the Modbus TCP stuff: http://www.wpsenergy.com/JayNick/MBTCP/default.html Mike. +----------------- H U R R I C A N E - E L E C T R I C -----------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | mleber@he.net http://www.he.net | +-----------------------------------------------------------------------+
participants (9)
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Christopher McCrory -
David Lesher -
Henry Yen -
Justin -
Justin Kreger
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Michael Loftis -
Mike Leber -
Randy Bush -
Roy