uninterruptible power supply

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1answer
33 views

Is it safe to use PoE injector for routers that do not support PoE

We bought an Asus router n66U to be installed in a tourist bus along with a server. The bus has a inverter to supply a 220V AC. However, there can be abrupt power fluctuations specially during ...
-1
votes
1answer
37 views

How to choose the right rack and UPS?

I have two configurations: 10 Dell PE R720 servers, 2 Dell EqualLogic PS6100S arrays, 4 Dell N3000 Switches, 1 N4000 switch 20 Dell PE R820, 1 Dell EqualLogic PS6100S arrays, 2 Dell N3000 Switches, ...
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2answers
50 views

How do I condition power between a generator and a UPS?

How do I condition power between a generator that does not produce a clean sine wave and a UPS to such a standard that the UPS will accept the power? I have tried running through a power conditioner, ...
1
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1answer
52 views

High peak power demands in datacenter; lower costs? [closed]

Short version A UPS seems to have only two modes: Supply all power from the input feed Supply all power from the internal batteries (when the input feed is gone) Can a UPS also be used to balance ...
1
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1answer
86 views

NUT UPS-Dummy driver in repeater mode for Synology NAS

I have a NUT client that requires the UPS it monitors to be named ups. The client (a Synology NAS) does not provide a method to change this configuration. My setup consists of multiple UPSes monitored ...
5
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2answers
64 views

Cancel / block a task triggered with delay by windows “task scheduler”

This is related to a specific issue, but I think it is an "interesting" question for general use: In Windows (specifically 2k8 server, for me) you have a task that is triggered by an event ...
2
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1answer
210 views

How to disable UPS energy_saving with NUT? UPS ignorantly powering itself off with light (12%) load after 5 min

I've got a Proline 650 UPS (Serial) installed Extra details: The UPS has a serial connection with a single 12v SLA battery. (It was not listed in the NUT compatibility list but after compiling ...
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5answers
360 views

FreeBSD determine if reboot was due to power loss

We are running FreeNAS (which is built on FreeBSD) to run our data storage systems. It is running on an APC Smart-UPS 750VA X. On a couple of occasions, I have been alerted to the fact that the ...
2
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1answer
66 views

After UPS battery replacement (HP R/T 3000)

has any one had experience with this UPS? i have replaced the batteries but have't ran self test yet, if i run self test is there a risk of powering down the machines the UPS powers? just wondering ...
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1answer
76 views

Establishing monitoring on nine Dell UPS that do not have management cards

Goal - Establish monitoring on nine Dell UPS that do not have management cards. • Dell UPS 1000W x 8 • Dell UPS 3750W x 1 Is it possible to daisy chain the USB or Serial (RS-232) ports on Dell ...
0
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1answer
589 views

apcupsd vs NUT in Proxmox environment

I have a Proxmox node which is actually is HP Proliant DL 320e G8 server + APC SmartUPS 750 connected directly to the server by usb cable. On the host are running several Linux VMs. My question is - ...
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0answers
59 views

auto shutdown using NUT(Network UPS Tool) after losing contact with master

If my understanding is correct, the NUT client ((i.e. the machine running upsmon with no data connection to the physical UPS) will auto shutdown if the UPS being monitored has a last known state of ...
2
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2answers
83 views

UPS - serial or parallel

I've two UPSs. I'm going to connect two devices to them and the combined wattage of the devices is below the rating for each single UPS. Would it be better* to connect the UPS device in serial with ...
1
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1answer
50 views

Script before shutdown with network on

I need to generate a SMS / Email alert when the server´s UPS is finishing its charge. We have a car battery connected to the motherboard that works as a UPS ...
2
votes
2answers
846 views

Automatic power on after graceful shutdown on UPS

This is my basic setup: I run a server (DL380 G7; linux 3.13 kernel) that is host to ~10 virtual machines It is set for automatic power on I use NUT for UPS management Graceful shutdown duration of ...
0
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1answer
32 views

APC SC450RM1U EPO port

I'm looking to get a couple of the APC SC450RM1U UPS's, and within the specifications APC states that EPO is 'Optional' on this UPS. I've had a look through the documentation, and it doesn't describe ...
0
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1answer
927 views

How do I assign an IP address to a Dell UPS 2700w network interface card?

We have just installed a NIC into our Dell UPS 2700w and I can't find a way of configuring the card with a static IP address so that we can then access it over our network. We have installed the ...
12
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4answers
639 views

Is there any value in protecting both rack power feeds with their own UPS?

I've done some looking and have not found a satisfactory answer to this question. When is it necessary or suggested to use an independent UPS (on it's own mains branch circuit) for each power feed to ...
0
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0answers
21 views

Why are wattage/amp numbers not fitting together?

I'm trying to figure out my backup power needs, and I'm having quite a difficult time with the numbers. Pretty much every piece of equipment seems to have wildly varying numbers that don't fit ...
1
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2answers
339 views

Shut down Windows Server on power failure without vendor-specific third-party software

Let's say I have a Windows Server 2012 R2 server with a UPS attached. Is there a generic way to make Windows Server 2012 R2 shut down when power fails, i.e., the system switches to battery power? I ...
0
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0answers
14 views

NUT: two or more NUT masters

Is it possible for NUT clients(i.e. monitoring remote UPSes, no locally attached UPSes) to check two or more NUT masters, each connected to and monitoring a single UPS, before shutting down? i am ...
2
votes
1answer
207 views

UPS Batteries different capacity

I'm trying to get a replacement battery for a Cyberpower UPS model CP425HG. The original battery is 12v, 3.6Ah. However, there are not identical batteries in my area, only 12v, 1.2 amp hour batteries ...
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6answers
2k views

Can I plug a 15A UPS into a 30A receptacle?

I know that typically electronics draw only as much current as they need. Is this the case with UPSs? I have a 120 volt, 30 amp circuit, and am replacing the UPS plugged into that circuit with a lower ...
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2answers
64 views

Is it safe to locate a UPS close to server

I have an Eaton 5S and a HP Microserver. I'm wondering if there's likely to be any problems stacking the former on of the latter (aside from stability). Do I need to be aware of any electrical ...
11
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1answer
464 views

Daisy Chaining UPS Power Cable

I have a rackmount UPS. The UPS has a 6ft long 12AWG thick power cable that powers it from one of the server room's 20A wall plugs. The current orientation of the cabinets is not ideal. All but this ...
0
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1answer
253 views

APC PowerChute management

I have 3 server with their Smart-UPS connected by USB cable. I downloaded PowerChute B.E. to manage ups. If I well understand PowerChute usage, I have to install an agent for each server and on unique ...
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1answer
1k views

Is a Virtualbox FreeNAS VM reliable (with a UPS)?

I started looking at - Is FreeNAS reliable? I would have taken issue with TV10's comment : "longer than a UPS would handle it" (but I don't yet have a rating high enough to do so). I am running a ...
3
votes
1answer
80 views

Order of connections between UPSs and PDUs

Half of the equipment on my server cabinet (data servers, networking) are critical and need to be backed up by UPS's, while the other half of it is non-critical (high-load simulations that only take ...
0
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0answers
328 views

Dell MUMC: How to shut down servers if any one of two UPSes loses power?

We have here two Dell R720 running ESXi (managed with vCenter). Each is connected to the same PowerVault MD3660i storage array. However the two servers are powered by different UPSes. One UPS (UPS1) ...
2
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2answers
246 views

How to administer an APC Smart UPS 6000?

I did a scan on a APC Smart UPS 6000 that is connected to the network, and it was discovered with a particular mac address and 62078 and 999 closed ports. I tried using telnet to login to the ...
3
votes
1answer
127 views

What is the interruption time of an offline UPS system?

I am trying to figure out what the maximal interruption for an offline/standby uninterruptible power supply (UPS) would be. According to wikipedia: "The switchover time can be as long as 25 ...
3
votes
2answers
239 views

UPS unable to power the 1U server

1U rack server: http://ark.intel.com/products/67786/Intel-Server-System-R1304GL4DS9 Power backup: http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BR1000G-IN When I try ...
5
votes
2answers
131 views

UPS for 30A service to server racks

Our server rack has two 208V 30A dedicated circuits running to it, each to a PDU mounted in the rack. Most of the equipment has redundant power supplies so one goes to each PDU. I'm not sure who had ...
2
votes
2answers
113 views

Two APC Symmetra LX 16kVA into one common output?

We have 2x APC symmetra LX 16kVA units running at the moment and have read (in Eaton's documentation) that their UPSs can have a common synchronised output (based on input phase or set phase with a ...
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0answers
199 views

Hyper-V Core with Basic UPS options

Good morning, running Dell T610 server with Hyper-V Core, just a few VMs, hardware Firewall & Router. My old Belkin UPS failed today so I need to replace asap at cheap cost where possible probably ...
0
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1answer
58 views

Dell Rack UPS and a single PDU

Our DELL Rack UPS 1000W has four outlets and we were using one per server. Now the server number is increasing and we are planning to purchase a PDU. Is it fine to connect the PDU to only one UPS ...
2
votes
3answers
121 views

How should mains power be conditioned for devices not protected by a UPS?

UPSes protect devices from more that just power outages. I've got a Schneider SURTA2200XL UPSes (manual here). It protects against all of the following: undervoltage (aka brownouts) overvoltage ...
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votes
1answer
80 views

UPS for tiny load [closed]

I am looking for UPS to backup 1 cable modem, and 1 mikrotik router. I have been trying a brand, but but it was shutdown after a few minutes because its load was under 1%. Both devices measured at ...
0
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2answers
430 views

It is possible to visualize the load of an APC switched PDU for a specified period of time?

There are some APC PDUs AP7953 and now we think about a solution for check the load over a period. We don't need a 100% correct Value only a trend on which hours we have more load to localize peeks in ...
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2answers
369 views

Server 2008 R2 - Allow UPS to wake computer?

I have a single Windows Server 2008 R2 box that's on a generic Geek Squad battery backup. (That purchase was not my choice.) It shuts down fine when the battery hits a critical level, but I can't seem ...
2
votes
0answers
263 views

Configuring apc ups with ap9630 network management card

I have an apc smt2200 with a network management card. It has a web server on board from which I can configure how it works. Some servers are powered by that ups and they all have PCNS software which ...
0
votes
1answer
48 views

UPS turning off by itself every morning

I have a UPS and a server connected to it. It works well all day long, but something after midnight its leds start flashing and it does doing some noises, like "tec, tec" as a relay. And it continues ...
1
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4answers
210 views

RAID Battery and UPS

I have a server with a UPS, life on battery is around 20-30mins, the server has a 2405/128MB without BBU, I am just confused as to do I really need a BBU card? Surely if the UPS is working, during a ...
0
votes
1answer
490 views

Dell UPS Management Software (ULNM) Shutdown Script Execution Failure

I got a Dell Server (PowerEdge R420) and a QNAP NAS (TS-412-U) connected to the UPS (Dell 1000W Rack), the ULNM Software is installed at the Server, the UPS is hooked up to the Server via USB. In the ...
1
vote
1answer
459 views

UPS monitoring for Linux?

I'm bit worried where to post this question, however, i expect that people engaged with servers should have some tip for me. I have got this ups: http://www.fsp-europe.com/ep850.php And since it ...
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3answers
111 views

Large APC on Standard Home Socket [closed]

I am thinking about purchasing an APC that has a max power capacity of 2850 watts / 3000 volts. I only plan on plugging about 1000 watts of actual power into the unit however. I'll be running this ...
4
votes
2answers
272 views

How to have NUT automatically power off a UPS before the monitoring system shuts down?

I've got NUT configured on a few systems in the following way: One host is connected to four UPSes via USB. That host is plugged into two of the four UPSes. Two other hosts are on the same rack, ...
1
vote
1answer
640 views

Backup Power System for a Small Office: UPS, ATS, Generator etc

I'm trying to put together a backup power system for our office and I need some guidance. We frequently lose power for several hours at a time. I'm looking for a solution which would: Control ...
1
vote
1answer
734 views

Running apcupsd on server core 2012?

Is it possible to run acpupsd on server core 2012? I went out and bought some Back-UPS (with USB cable signalling) to run some Hyper-V servers before I realized "that wont work" :-) Back-UPS are not ...
1
vote
1answer
347 views

HP Proliant ML350 G6 UPS

We're trying to select the best UPS within our budget. Our goal is to allow 2 x HP Proliant ML350 G6 servers time enough to shutdown. We're estimating this to be no more than 10 minutes. Can anyone ...