How is it for traps?
-----Original Message-----
From: Jerry Richardson (airCloud)
Sent: Tuesday, January 06, 2015 11:06 AM
To: [email protected]
Subject: Re: [AFMUG] 24V UPS
Honestly, PRTG has been rock solid and does everything.
2 hour, 1 day, 2 day, 30 day, 1 year graphing
Alerting/alarms for unusual/down nodes (excess traffic, latency, interface
errors)
Mapping
NTOP
Group alerting/notification
Custom Dashboards
Report emailed automatically
Sensor views by highest/lowest latency, bandwidth, etc
-----Original Message-----
From: Af [mailto:[email protected]] On Behalf Of Chuck McCown
Sent: Tuesday, January 06, 2015 8:48 AM
To: [email protected]
Subject: Re: [AFMUG] 24V UPS
Speaking of NMS, is there a consensus as to what is the favorite?
-----Original Message-----
From: Adam Moffett
Sent: Tuesday, January 06, 2015 9:42 AM
To: [email protected]
Subject: Re: [AFMUG] 24V UPS
If you just need to know when the power goes out, get a Site Monitor for
$99. It has two power inputs. Connect input 1 to your battery backed
power, and input 2 to a wall wart on an A/C outlet.
Monitor the voltage on the two power inputs in your NMS. When input 2 has
zero voltage, then the power is out. Add a current shunt for $20 more and
then you can measure your load and voltage, from there you can estimate your
expected run time.
Probably not as easy as the APC management card.
I'm at my end. I've been looking at this for a while now and it's
obvious that no one makes an industrial APC UPS that works.
We've tried the Alpha Cordex (DIN rail) and the ICT (19" rack) and
neither one can do what a APC management card can. We just need it to
provide 24vDC to a load and when the AC power goes out, send an alert
and let us monitor the system status via SNMP.
Alpha:
PROS: DIN rail mounted
CONS: Web interface is IE only, SNMP requests are completely broken,
have not tested SNMP traps, cost is about $700.
ICT:
PROS: It works well as a dumb power supply/charger with UPS
functionality, web interface works in all browsers.
CONS: SNMP is limited to about 6 values, all remote communication is
lost when AC is removed, no battery monitoring at all other than the
voltage for use with LV cutoff which is one of the values that is not
available via SNMP. Also costs about $700
I have to give it to Alpha at this point, at least their unit remains
"intelligent" when AC power is removed. If they would fix their web
interface and SNMP it would be perfect.
So... Does anyone have a solution that works that isn't completely
cobbled together? I need to know when we lose/regain AC power, that
the battery is draining, what the battery voltage is so that I know
when it's about to cut off, it needs a LV cut off to protect the
batteries, and all this information needs to be available via SNMP and
web. Am I asking for too much or does something of this nature exist
outside of TrippLite and APC?
