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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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Restore old Belkin UPS?

I have an old Belkin F6C650-USB-MAC UPS which I used without problem to support some Macs and PCs for a number of years (probably bought circa 2002). I then moved to a house where it wouldn't work because the 3-pin sockets weren't grounded (ouch!),…
Jonathan Leffler
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IBM server shutdown and restart

How can I set up a server so that when there is a power cut it is safely shut down, and when power returns it switches back on automatically? I am specifically using an IBM AIX Server 6.
Annu
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Is this an NEMA L6-30R Plug?

My employer just bought a building with a decent server room. Before I go out and spend some money on a UPS, I want to confirm that this is actually an NEMA L6-30R (sorry for the poor image). I've been looking online to try and match the plug and…
Stephen
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Placing UPS in front of STS; Connecting Dual PSU to same PDU

The site has 2 x 16A @ 230V, each server/SAN has dual PSU set up. Options: 1) [2 x 16A] ---> [1 x STS or ATS]----> [1 xUPS]---->[2 x PDU]----->[DUAL PSU] As can be seen the server is actually connected to the same UPS in the end even though via…
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What UPS would you use for remote network switches?

I came into work this morning to find out that one of our CISCO 2960s had died during the night, I haven't had a chance to figure out why, but I'm guessing a power spike killed it, and the surge protector it was using is useless. That said I've been…
Peter
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apcupsd doesn't show voltage with "SmartUPS 1000 LCD"

I'm trying to config apcupsd on my Ubuntu 10.04 Server, I've got an "APC Smart UPS 1000 LCD" connected via USB ( Bus 003 Device 003: ID 051d:0003 American Power Conversion UPS ). My apcupsd.conf file highlights: UPSCABLE usb UPSTYPE usb DEVICE And…
Fabio
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APC UPS-5000 Power off remote servers

I have a UPS connected via the serial port to a server using PowerChute Business Edition. If a power outage occurs I would like this server to start shutting down all other servers within the network. Is there dedicated software to do this? I was…
Vishal
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Plugging Surge Protectors into UPS

Possible Duplicate: UPS and power strip interactions? I have heard that plugging a server into a surge protector (cheapo power strip) is not good. Is this accurate? For instance: Server --> Fellows Power Strip --> UPS -Josh
Josh Brower
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FreeNAS NUT Slave and not master?

I have 2x FreeNAS servers and one UPS. The First FreeNAS server has the NUT stuff configured, running and working just fine. Is there a way to configure my second freeNAS server to be a slave to the first FreeNAS server like I can do with other…
Luma
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Why is an UPS needed for a server?

I wounder how important it is to have an UPS for a server. Everyone seems to use UPS for servers but not for client computers. In example, if I use Windows Small Business Server on a small network for Active Directory and storing the users home…
Jonas
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is it better 1 big UPS or 2 ups

I have 2 computers that we use for video editing they have 2 external hard drives. The thing is that in the past for some reasons the power went and the external hard drives got damaged. But I was wondering if it is better two have UPS of 300 wats…
Juan Diego
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how do I properly measure capacity of a UPS battery?

How can I properly measure the capacity of a UPS battery? Unplugging it from the wall is a bad idea since it loses the ground, so how can this be done?
krideo
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Does anyone know where I could find a 2 input USB voltage meter?

What we really need is a tiny UPS, of sorts. We'll be hooking up a solar cell and a battery to a single board computer. Currently, that SBC is a custom Pic32 device, and it does it's own UPS and voltage monitoring duties. I've been tasked with…
John O
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Which UPS, for home use, which can automatically shutdown the PC when battery is low?

I am planning to build a single server machine which is highly dependent on data residing in RAM for performance reasons. I am looking for a UPS which can power the PC during a blackout (very rare) and when the battery level is like %20, it sends a…
Tony_Henrich
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UPS recommendations for three grey boxes?

We have a series of grey-box style computers acting as servers at my workplace (rather than rack-mount). We were looking to get Uninterruptible Power Supplies for them. However, I'm not sure how many at what capacity are required. I'd assume it…
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