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Questions tagged [apc]

APC by Schneider Electric, formerly American Power Conversion, is a maker of electrical hardware, focused on, and best known for their uninterruptible power supply (UPS) product lines.

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13 views

PowerChute appliance 4.4.1 for ESXi issues 302 redirect to localhost after login

I've been using PowerChute 4.3 network appliance on my ESXi host for a while now. I followed the instructions to download and install the appliance update to 4.4.1 this morning using the official tar....
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37 views

Switching APC rack PDU via SNMP

How can I switch the outlets of an APC Rack PDU (AP7920) via SNMP (Linux SNMP command tools like snmpget/snmpset) ? I can't find anything about it. I was able to walk it via: snmpwalk -v3 -a MD5 -A ...
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2answers
731 views

snmpwalk: Decryption error for APC Rack PDU

I have an APC Rack PDU (AP7920) and have configured: [x] Enable SNMPv3 access Username: switch Authentication Passphrase: test Privacy Passphrase: test Authentication Protocol: (o) MD5 Privacy ...
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25 views

How to upgrade APC Rack PDU?

I have an APC Rack PDU AP7920 (hardware revision B2, manufactured 07/21/2012). When I log in via telnet I get: American Power Conversion Network Management Card AOS v3.3.4 ...
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1answer
487 views

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 ...
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1answer
251 views

Shutdown Multiple Servers From One APC USB Port - Power loss event

I've got one Ubuntu box and a Synology NAS. Both are connected to the APC UPS, but only one USB, which is connected to the Ubuntu box. How, specifically, can I get both machines to shut down from a ...
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2answers
141 views

APC Smart-UPS 3000 turning off but passing own test

I have APC Smart-UPS 3000 at home which I got hand and apparently when the power goes down it just shuts down instead of switching to backup. Based on how it behaves I have reasons to believe is not ...
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3answers
5k views

APC Smart-UPS turning off by itself?

I have an APC Smart-UPS 3000. Last Sunday, it turned off by itself. Noone was in the office and noone was logged in at the time it happened. What could cause this ? I'm concerned it may happen again....
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2answers
5k views

APC UPS Powerchute | “The installer is unable to locate an APC battery”

Under Windows 10, I connected an APC UPS via USB. In case of a power failure, the servers are shut down by a script. Installing the APC Powerchute I get the error message The installer is unable to ...
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1answer
67 views

APC PDU has wrong idea of its outlets

I have a APC rack PDU here. It should be AP7953, although that doesn't show in the telnet interface: About System Model Number : Serial Number : NMC Serial Number : Manufacture Date : ~ ...
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68 views

php performance issues between two servers

I know this question might be too broad but I'm desperate. Prenote: Here I'm testing php with CLI but same difference occurs with Apache+PHP too. But to avoid Apache caching and other stuff I used ...
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2answers
258 views

APC UPS replace battery illuminates [closed]

I have an APC SmartUPS 1000 for my servers. It was good for over 2 years, its capacity is always 5/5. One day I saw a red light illuminated. I searched for the reference it is either "Replace" ...
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103 views

apcupsd commok event fires where there was no commfailure

I have an openSUSE Tumbleweed host connected by USB to an APC Back-UPS NS1080G. For the most part everything works fine and apcupsd keeps track of the status. But lately every few weeks it fires the ...
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1answer
50 views

ACPu cache with a cron job

My sites homepage first time access load time is between 5-8 seconds. Once I'm on my website all pages load fast. And if I access the homepage directly again it will load instantly. I set up a ...
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2answers
956 views

APC or Memcached - Nginx php-fpm wordpress

I am using a wordpress installation on Ubuntu 16 Nginx Php-fpm (latest version) I intend to use W3 total cache for caching purposes and was wondering whether I should be going for Memcached or APC ...
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2answers
697 views

What is the difference between the “Write” and “Write+” modes on an APC SNMP card?

I'm configuring a UPS to be controllable via SNMP and have come across to options: Write mode Write+ mode I've tested both settings and only Write+ works for me so it's what I'll have to use. I'm ...
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0answers
114 views

APC Smart-UPS 750 self test stays at 100%

I have a previously reliable APC Smart-UPS 750 that recently went into "REPLACEBATT" status. I obediently bought a new battery and fitted it. As per procedure I then shut down the APC daemon (CentOS 6)...
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1answer
207 views

Power consumption PDU

As you can see in the image below, I can't get the consumption. Even if I send the log via FTP there's no info about the consumption. I already checked on APC PDU website and co and i didn't found ...
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2answers
8k views

APC Smart UPS serial connection on Windows Server 2012 R2

I have an APC UPS 620 and a Windows Server 2012 R2 (non virtual) server. The server and the UPS are connected with genuine APC serial signaling cable. Without installing any software the APC is not ...
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1answer
131 views

APC SMX3000 Smart-UPS Battery has never been cycled. Is it still good?

I've recently inherited an APC SMX3000 Smart-UPS. The UPS has never been used. Is the battery still good? The battery is plugged in, but the UPS reports "No Batteries".
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1answer
1k views

How to verify if a Windows Server shutdown was complete on server hardware before UPS killed power?

Our Windows Server 2012 R2 machine just got its own UPS (APC Back-UPS RS 550G). I'm using the Windows release of apcupsd and since I would prefer if the UPS would turn off after shutdown I also added ...
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0answers
182 views

Logrotation performance

One question about logrotation on a dedicated webserver (64gb RAM) with apache and mysql. In high load hours (2k users online every moment) we are experiencing a strange behaviour. As an example, at ...
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1answer
283 views

How to auto clear APC cache after publishing posts on Wordpress?

I'm currently using APC cache module on my PHP installation . The problem is that whenever I publish a new post , Users must use Ctrl + f5 to see new posts . Is there any way to purge APC cache ...
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2answers
422 views

Can APC and OpCache co-exist in PHP5.4

We are generally running php 5.4.x with APC enabled on CENTOS for our production sites. We have a new app that is segfaulting and the development team thinks it is because we've got APC. The app is ...
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1answer
3k views

APC UPS -> Windows SNMP

We have an APC UPS. I want a Windows 2012 R2 server to shutdown on a power breakdown (and the remaining power lasts for e.g. 15 minutes). Therefore the UPS should send a message to all servers via ...
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1answer
555 views

Get PHP extension APC not running on Ubuntu 14.04.3 - undefined symbol: php_pcre_exec

I installed the PHP extension APC on the server but I get it not running. It gets not listed in phpinfo(). After activating the php error log I get the following error: PHP Startup: Unable to load ...
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2answers
2k views

APC Smart-UPS 5000VA maximum time

I planning to put a server on this ups (Europe, 230V): http://www.apc.com/resource/include/techspec_index.cfm?base_sku=SUA5000RMI5U&ISOCountryCode=gb My server has a relatively new energy saving ...
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0answers
1k views

E: Unable to locate package php5-apcu

trying to install APCu on Ubuntu: apt-get install php5-apcu Getting an error: E: Unable to locate package php5-apcu Following someone's suggestion I added: deb http://packages.dotdeb.org wheezy-...
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1answer
2k views

AP8941 PDU frozen, how to reset management interface?

I have a frozen AP8941 PDU. It still produces power to its outlets, but I can't serial in, ethernet in and even the LCD is frozen. How do I reset it without losing power on the outlets? (I prefer a ...
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0answers
905 views

What caused apache to crash?

I have a high load server using php/apache/APC working fine for months. In the last 2 days it has crashed midday. if I restart apache it works so the problem is probably in the apache/php/apc stack. ...
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0answers
721 views

Nut says APC UPS is on battery. It is not

Since 2 days my Smart-UPS 1500 RM reports it is on battery but this is clearly not the case since it's been running for more than two days indicating 100% battery with 01:30:00 running time. Batteries ...
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1answer
2k views

APC Extension unable to load dynamic library /usr/lib/php5/20090626/apcu.so

I have installed using this Tutorial https://www.23systems.net/2009/07/installing-alterative-php-cache-apc-with-plesk-on-ubuntu/ and all is running fine. Even APC is caching everything and apc.php ...
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0answers
775 views

*** glibc detected *** /usr/sbin/httpd: free(): invalid pointer: 0x068977f0 ***

Completely fresh install of CentOS and I've installed PHP, MySQL and Apache with all modules, when I first tried to run the service the following message is in the error_log followed by a memory map. ...
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0answers
74 views

apache refuses to start when apc.shm_size is greater than 76M

I'm just setting up a new faster server for our Drupal site and was setting up APC and tried to set the apc.shm_size up to 128M however after restarting apache and reloading the APC Admin page Apache ...
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1answer
940 views

APC Switched PDU: group outlets on different PDU's

We have newer gen 2 switched PDU's and I noticed that they have an ability to daisy chain the PDU's. I can see that dasily chaning allows us to have a central access point for the PDU's which is nice....
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1answer
660 views

APC not working after centos and php upgrade

I had centos 6.5 on my server. I upgraded to centos 7. With this upgrade I have php 5.4 instead of php 5.3. All works fine except APC and xhprof extension. Here is the error I am having when I try ...
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0answers
608 views

Is it possible to disassemble an APC Netshelter SX enclosure?

I need to move an APC Netshelter SX 48U from one room to another, but the new room is lower than the current one and I cannot install it without disassembling it. According to APC, these enclosures ...
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1answer
10k 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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61 views

APC Power Controllers Inaccessible After Brief Power Loss

It seems like every time there is a brief power outage in our environment (1-2 second blip). There are generally a handful of APC power controllers that become inaccessible through network. The ...
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2answers
328 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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2answers
2k 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 ...
10
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2answers
21k views

Is APC's smart-signaling cable (940-0024) really proprietary?

First, not sure if this question belongs here or SU, so please advice accordingly before wildly down-voting or blasting me. We have a UPS unit for which we recently configured to work on our network. ...
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1answer
2k views

Is there some software available to centrally manage APC IP enabled PDUs? [closed]

I am not looking for a recommendation of which one to use, just an answer as the whether anything to do this exists. We have a few dozen AP7921 & similar units that until now we have managed on ...
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1answer
3k views

Getting APCUPSD working with PowerChute (pcnet)

After configuring apcupsd and starting the service the service eventually times out and reports Warning communications lost with UPS. The ups is configured with the IP of the client and the client is ...
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1answer
965 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 ...
4
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2answers
2k views

How to detect APC UPS battery usage and run a script when on battery

I have a couple APC UPS - Smart-UPS RT 6000 RM XL Smart-UPS RT 5000 RM XL Unfortunately the power in my office likes to go out (out of my control) and hence the equipment powered by these UPS shuts ...
3
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1answer
783 views

PDU management interface has low availability - product flaw or isolated issue

Our colocation provider has supplied us with APC AP7932 switched 0U PDUs as part of several cabinets they provide us. We have had a lot of trouble with the network management aspect of these PDUs, ...