Server Fault Stack Exchange
Server Fault Stack Exchange

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.

enter image description here

Source: wikipedia

271 questions
1
vote
0 answers

PowerChute with ESX - how to start the VMs

I have a setup with a couple of ESX servers and two APC UPS. The ESX servers are govern by vCenter and I've deployed vMA (provided by VMWare VM) on one of the ESX hosts and configure it to target both ESX hosts. All guest VMs have vmware-tools…
hovanessyan
  • 125
  • 6
1
vote
1 answer

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 ignition start. We need to ensure that our server and…
Kartik
  • 267
  • 2
  • 9
1
vote
1 answer

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 (http://www.mini-box.com/M2-ATX-160w-Intelligent-Automotive-DC-DC-Power-Supply) When this…
Ezequiel
  • 137
  • 7
1
vote
2 answers

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 interference in the way that UPSes work?
Joshka
  • 161
  • 6
1
vote
2 answers

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 to figure out how to get it to boot back up when…
eckza
  • 273
  • 2
  • 11
1
vote
1 answer

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 should be placed in a box outdoor where temperatures…
mariotanenbaum
  • 382
  • 5
  • 14
1
vote
1 answer

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 help me to understand what I should be looking for…
pierre
  • 189
  • 6
  • 17
1
vote
2 answers

Shutting down Dell Server via iDRAC and UPS

does anybody know if it's possible to shut down a Dell Server via iDRAC card triggered by UPS? Background: The server hosts a ESXi which isn't (in the free version) able to shut down via UPS. But it's possible to tell ESXi that it shall shut down in…
PascalTurbo
  • 121
  • 1
  • 9
1
vote
1 answer

cacti : Terminology about ups, room temperature etc

We use cacti for graphing lots of metrics : Windows server related metrics go under a branch called "windows". Unix, Linux and storage metrics go under a branch called "Unix". Switch, firewalls, routers and load balancers related metrics go under a…
user130370
1
vote
1 answer

Eaton Powerware 9170+ (with ConnectUPS Web/SNMP Card) - Cannot make all SNMP queries nor change SNMP community name

Does anybody has this UPS (Eaton Powerware 9170+)? I'm having some problems with it. Unfortunatelly all related to this product is bad documented. My problems: Don't know where to change SNMP community name in it. The old administrator did that,…
Silas
  • 11
  • 2
1
vote
6 answers

What hardware for powerfull server setup

Sorry if it's a bit too broad question... I'd like to have my own personal server, mainly for php websites (although I might later add some features when I'll need them... like Jabber, mail, etc). I might later decide to also offer some space for…
Phil
  • 1,969
  • 6
  • 29
  • 33
1
vote
1 answer

Power surge protection on office LAN, medium-small scale

I've got an office LAN setup with about 15 computers, which is due to expand to 30 before long. Each computer is on its own voltage stabilizer and UPS. I live in a place with horrible, substandard, screamingly bad electricity. The voltage coming…
Ben
  • 121
  • 5
1
vote
5 answers

Configuring power outage shutdown via APC UPS's

I've got 2 APC Smart UPS 3000's, one of which has the management card (AP9617). They're both currently being used purely for battery backup, and since we've had repeated power issues in this building, I'd love to get some of the servers to shut…
Kara Marfia
  • 7,892
  • 5
  • 33
  • 57
1
vote
3 answers

Why UPS operate deal with 110v/220v rather than integrate within PSU?

All the laptops I know about operate on ~19V, in consuming up to 150W. All the non-gaming desktops I know about take 110v/220v, convert into 12V & 5.5V, consuming up 400W. To provide desktops with a good power, uninterruptible power supplies take…
bohdan_trotsenko
  • 143
  • 6
1
vote
1 answer

HP R5500 XR - Exiting UPS Management Card Serial Pass-Through Mode

I have a HP R5500 XR UPS with a Management Card. In order to update the firmware for the UPS itself (I.e., not the management cards f/w) one has to connect, via a serial cable, to the management card and enable Pass-Thru mode so as the serial port…
Dan
  • 15,430
  • 1
  • 36
  • 67
1 2 3
…
18 19