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Questions tagged [ups]

uninterruptible power supply

An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide instantaneous or near-instantaneous protection from input power interruptions by means of one or more attached batteries and associated electronic circuitry for low power users, and or by means of diesel generators and flywheels for high power users. The on-battery runtime of most uninterruptible power sources is relatively short—5–15 minutes being typical for smaller units—but sufficient to allow time to bring an auxiliary power source on line, or to properly shut down the protected equipment.

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Source: wikipedia

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HP Power Manager SMTP setup doesn't have space for username & password

Is there some way to configure HP Power Manager to not assume that there's an email server running locally? We recently acquired an HP T1500 G3 UPS, which we're trying to control using HP Power Manager 4.2. The main reason we wanted to get this…
Martha
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Assistance in setting up new APC Smart-UPS RT on a new VMware enviroment

I'm new to the realm of setting up a APC Smart-UPS RT 8000VA UPS with a management network card (AP9618). The project calls for the upgrade of the firmware for the network card to the newest and greatest. It also calls for the Powerchute Business…
NetWarrior
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Should I consider running servers under a UPS that can not fulfill the estimated VA?

I currently have a 2200 VA UPS unit (APC Smart-UPS 2200XL) in my rack and may need a 3000 VA unit to be able to load additional servers. Under my assessment, based upon whitepapers for each server, the current can achieve a max of 1335 VA yet adding…
Ishmael
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USB peripherals reconnecting and finally disconnecting when on battery power with CyberPower CP1500EPFCLCD UPS

The following happens with my brand new, fully charged CP1500EPFCLCD UPS by CyberPower if I cut power to it (with the home circuit breaker): After a few seconds, my USB mouse starts reconnecting (i.e. stops working and then starts working again)…
Piedone
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UPS beeps once when server is connected to it

When I connect the server power cable to UPS it beeps once as if there is overload. Afterward the server turns on normally without any problem. This happens randomly every time I turn on the UPS or plug the server power cable into the UPS. I changed…
Mohammad-Walid Zein
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replace APC smart signaling cable with RJ-45 to RJ-45

Is it possible to replace the APC Smart Signaling Cable PN: 940-1525A with an RJ-45 to RJ-45 cable? The cable is built as an RJ-50 to DB9, but I need to connect it to a console server that only uses RJ-45. I have pin-out diagrams that show the cable…
mcv110
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Is it possible to limit WMI privileges with certain class or property?

I'm interested in gathering Win32_Battery class data from User machines. It works well if I provide root/cimv2 rights to the account which is used to send a Get-WmiObject query. But I'd like to tighten it a bit, I don't want to be able to collect…
rGA145
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How to protect 15-amp circuit from UPS with 20/30-amp draw

I managed to pick up a great deal on a CyberPower OR2200LCDRT2U UPS. Unfortunately this box has a NEMA L5-30P input plug (NOT a L5-20P as specified on the product page). In the location I'm trying to set this up, I only have a 15-amp circuit with…
matoro
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Is it safe to unplug a UPS during operation?

Interestingly there is no word in the manual and nothing to be found on the internet. But it seems like an obvious question: While a UPS (let’s use APC Smart-UPS 1500RM as an example) drives equipment/server, is it safe to disconnect the mains power…
divB
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APC SmartUPS suddenly all lights flashing. What's going on?

upsfault: I have a APC SmartUPS 2U 1500 somewhere in a rack far away. Batteries were replaced recently and UPS was working without issues for a long time. Suddenly yesterday, the entire equipment attached to the UPS was off. I send someone there to…
divB
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Configuring NUT for old serial connected UPS (Tripp-Lite)

I have an old Tripp-Lite UPS (SU2200RTXL2UA) which I need to communicate with via it's RS232 Port (this model doesn't have a USB port). I'm trying to figure out which Serial NUT driver would be most appropriate to receive communications from this…
Jason O
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Save virtual memory in event of a power outage?

I believe my understanding of ram is that it holds the state of all programs for fast recall. On a short term basis. So my question is. Can you have a uninterruptible power supply that would send a signal to a server or desktop, saying there is a…
Alex Cunningham
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On boot, server pulls full load of both PSUs -- any way to limit this or mitigate load spike?

I have a giant 24u server (Supermicro 4U X9DRI-F w/ 2x Xeon E5-2680) with 2 1200w PSUs. However, I only have 4 drives in right now, and my actual power draw (under the most stressful loads) is likely not more than 500w. I have these PSUs plugged in…
Mike Manfrin
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Halt, not power down, a windows server

A client recently changed their UPS and now claims that their server is not coming back up after am extended power outage. They have tested their system and it will keep the last state, so if the power is removed while on, it will automatically…
Vic
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How to calculate draw power from specs for a UPS

We recently installed some new blade servers and we have 'overloaded' our current UPS (APC Smart UPS 3000). We bought an identical UPS to balance out the load, however, we did not have another 30 Amp socket in our server room to support it. I have…
Justin
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