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1
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0answers
15 views

How to estimate potential power savings

If I have some servers set to static high performance mode, is there a way to generate a report on what power savings mode would have done, if it were enabled? I am looking to generate reports of the ...
0
votes
1answer
29 views

Supermicro X7DBU, how to put it to sleep

I am very new to server administration and just learning the stuff. I have just inherited a Supermicro 1U Server X7DBU running openSuse 12.3. Is it possible to configure it to go to sleep or low power ...
0
votes
2answers
902 views

Cant access Dell BMC IPMI Over IP

I have Dell R210 with iDRAC BMC (new name for old BMC). Which is on-board feature with shared NIC (I believe). Server is on colocation and I didnt set it up before sent there... So I asked for the ...
45
votes
3answers
2k views

Assessing equipment damage following a lightning strike - Should I have planned more?

One of my client's sites received a direct lightning hit last week (coincidentally on Friday the 13th!). I was remote to the site, but working with someone onsite, I discovered a strange pattern of ...
2
votes
1answer
180 views

Resume from suspend/hibernation on LAN activity

I have Debian Wheezy 7.2 running on a HP Thin Client. This little box acts as a file server and is only used from time to time, so I don't want it to run 24/7 but it has to be available when it's ...
2
votes
2answers
459 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
votes
2answers
78 views

HP Proliant Standby

I'm working on coordinating a rack with 1 HP Proliant DL580 G5 and 2 Proliant DL380 G4's. Is it possible to induce either of these units into something like a standby mode? I've perused the manuals ...
8
votes
3answers
562 views

Power Cables Required to Switch from 120v to 240v for Dell Poweredge Servers

We have a cabinet of servers and other hardware (switches, firewalls, etc) that all are currently running on 120v. I've confirmed that the power supply for all of our devices support both 120v and ...
-1
votes
3answers
94 views

What will be the ill effects of turning off and on server daily

I have IBM server x 3850 M2 with remote system adapter. It has 128GB RAM and 4 SAS drives Its basically for my home labs , developmenet and testing I think that if i make it on 24 x 7 then i will ...
0
votes
5answers
2k views

When HDD wakes up?

Im looking for some small script or application which could log the time when a non-system disk wakes up. I cannot identify which application or script wakes up my non-system drive (which has to be ...
12
votes
12answers
26k views

What is the lifespan of an typical UPS battery?

When using a uninterruptible power supply how long does it preserve the original capacity? Say I buy a UPS that holds the necessary load for 10 minutes - I don't want it to unexpectedly come into ...
1
vote
2answers
510 views

How to put laptop to sleep with powershell/vbs/wmi/…?

I'd like to be able to put my laptop to sleep from the command line. According to Microsoft, the Win32_Battery WMI class has a SetPowerState method that looks like it should be able to do this, ...
1
vote
2answers
4k views

Command to disable windows 7 sleep

Normal way to disable Win7 sleep is to go to Power Management and find current power profile, then select never for sleep option. However, I was wondering if there's any way to do this in command line ...
2
votes
0answers
78 views

NetApp filer uses more amps when one power supply is turned off

We have two old NetApp FAS3050 filers at our colo. We also have an upcoming maintenance window that will take our circuits offline for an extended period of time. Our circuits are pretty much maxed ...
6
votes
3answers
1k views

Open source DCIM stack?

Our 500-server data center is growing quickly and my manager has started investigating using a specialized Data Center Infrastructure Management (DCIM) package to help manage constraints. DCIM ...
5
votes
1answer
107 views

Using more than 80% power on a circuit in a disaster scenario

We currently have two cabinets of equipment at our datacenter, and each cabinet is served by two 30A circuits. The facility is relatively new, and each circuit is (supposedly) redundant at the source. ...
9
votes
4answers
475 views

Maxing out both PDUs in a rack with redundant power

If I have a rack full of servers using redundant power supplies, and I'm keeping the amps at 80% (16A of 20A), isn't this still asking for trouble in the event of a power loss on one of the circuits? ...
1
vote
1answer
762 views

ESXi hard drive power saving [closed]

I currently have a Windows Server running beneath my desk and was considering replacing it with a ESXi layer to run both a Windows and Unix virtual machine. The ESXi is going to give me some nice ...
0
votes
1answer
161 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 ...
5
votes
1answer
84 views

Power Control Compartment?

I recently purchased an IBM enclosed, rolling rack that had a 6 drive server, huge battery backup, and this strange item called a "Power Control Compartment" I cannot find any good documentation ...
2
votes
0answers
659 views

Command-line CPU frequency scaling?

How to configure Ubuntu 12.04 Server to dynamically adjust CPU frequency during quiet times? I've found a set of instructions at http://ubuntuforums.org/showthread.php?t=944190, suggesting to add ...
0
votes
0answers
98 views

hdparm: Hard drive spin down logs

I've been using hdparm successfully to spin down hard drives on some systems, however I'm curious, is there anyway I can make hdparm generate some kind of spin down log, so I can further optimize the ...
1
vote
0answers
420 views

apcupsd not working properly on centos 5

I have APC UPS and my servers are directly connected to it using power cable. I want to use network link to shutdown servers when ups goes on batter. the following is my config file. ## apcupsd.conf ...
0
votes
1answer
273 views

Windows server's HDD Spin down daily/nightly - Does it makes sense?

A Windows Server 2003 R2 has the following hard disk configuration: - 3 internal hard disks attached to a 3Ware unit, configured in Raid 1 + spare unit - 3 external USB backup disks: 2 Verbatim 1TB ...
1
vote
0answers
239 views

Error in AIX : 0516-040 : Unable to read the specified physical volume

Please provide me your valuable suggestions on the error beow in AIX. When I'm running the following command on the AIX server lsvg -l rootvg I'm getting this error: 0516-040 : Unable to read the ...
6
votes
7answers
1k views

Is there a solution against short power outages except UPS?

I encounter very short power outages quite often. Typically they last for just couple of seconds - perhaps the power grid maintenance staff just flips the switch to "Off" and then immediately to "On". ...
4
votes
1answer
5k views

How to enable hibernation on Windows Server 2012 with Hyper-V role? [duplicate]

I have Windows Server 2012 installed on a laptop. I need a server because I develop software that I need to test specifically on a server edition. Documentation for Windows Server 2012 says Sleep ...
2
votes
1answer
77 views

Does exist any IP-KVM that connects to motherboards pinheads with powerbutton, reset, etc.? [closed]

Exists couple of "servers" based on usual consumers motherboard, without any remote capabilities. Is there any kvm with modules, that connects to pin header of motherboard, where powerbutton, reset ...
1
vote
2answers
508 views

Do power settings matter for Hyper-V instances?

Do power settings in the actual VMs affect performance of the virtual machines?
4
votes
1answer
1k views

How do I inform my ESXi 5 host(s) of a power outage?

My APC UPSs all have the APC SNMP card so they are able to communicate over the network. From what I've been able to find the PowerChute program alerts the guest OS that a power outage has occurred ...
23
votes
6answers
5k views

Best practices for power cabling racks in DC

With network cables it is easy. I use velcro-ties, coloured cables, 0U vertical cable organizers from APC on side of the rack -- easy and neat. However with power cables it was always giving me ...
1
vote
2answers
278 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 ...
1
vote
4answers
570 views

FATAL: Error inserting acpi_cpufreq

Trying to see how to force CPU to run at higher freq on a HP ProLiant system with SLES 11 SP2. /# modprobe -vv acpi-cpufreq insmod ...
0
votes
1answer
6k views

What is the difference between init 6 and reboot on Red Hat / RHEL / CentOS?

In Linux, the init 6 command gracefully reboots the system running all the K* shutdown scripts first, before rebooting. The reboot command does a very quick reboot. It doesn’t execute any ...
1
vote
1answer
483 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 ...
0
votes
1answer
10 views

Matching time to system event

I have a file server running Ubuntu 12. I have recently installed noflushd to spin-down unused hard drives in an effort to extend their life. I am noticing that every morning at the same time ...
0
votes
1answer
285 views

Understanding CPU Throttle

kernel /vmlinuz-2.6.32-379.22.1.lve1.2.17.el6.x86_64 ro root=UUID=7cb0b445-0f63-4ef1-ab73-93c114d8ef6c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto ...
2
votes
5answers
226 views

VOIP Power outage strategy

In the past 2 years, we have had 4 instances where we have been without power for a period of 4-6 hours - due to construction crews cutting power lines, car accidents involving downed power lines, ...
-2
votes
2answers
88 views

Running long time off a battery [closed]

I don't know if this question is suitable for ServerFault, but here it's anyway. I brought what's called power-inverter connected it to a battery charger to test how many amps my computer uses, so I ...
1
vote
3answers
6k views

Powertop reports “Bad” “Runtime PM for PCI Device”

I've noticed that powertop utility reports "Bad" "Runtime PM for PCI Device" for several devices. Seems that powertop can fix the issue but it won't tell what exactly it does to fix it. What should I ...
1
vote
1answer
71 views

Using an “AV” power conditioner with servers

We have render servers that don't need to be on battery backup but we'd like to protect from power surges and being under-powered. I came across this power conditioner which will block surges and ...
2
votes
4answers
3k views

HP ProLiant ML110 G7 Questions

Have an HP ProLiant ML110 G7 running Server 2008 R2. Question #1: This server takes FOREVER to boot. I think it's because of "HP Power and Thermal Calibration" it does at the beginning of every ...
0
votes
1answer
592 views

IBM IMM2: Which level to control power and have remote terminal access

We're looking to purchase an entry level System X server, specifically the x3100 M4. What I've been unable to figure out is what the lowest level of IMM2 we need is in order to remote the system ...
0
votes
2answers
6k views

Power management over IPMI and HP iLO2

I tried to reboot server over IPMI and the integrated service processor/BMC. It worked for IBM server with an Integrated Management Module (IMM), but failed with HP iLO2 (FW v2.05). I used ...
1
vote
2answers
102 views

Redundant Power System integration

We currently have a stack of catalyst 3750's at the core of our network. We just purchased two new 3750's to split off our VMs and SAN onto their own switches and away from the stack. These two new ...
3
votes
4answers
600 views

Best way to execute a command after Linux system halt

Problem: The SSDs in our servers require a power cycle (i.e. off/on, not reset/warm reboot) after a firmware update. Thoughts: Using 'ipmitool chassis power cycle' I can cycle the server's power. ...
3
votes
3answers
2k views

How to measure server power consumption?

We have data center running more than 2000 servers. We are planning to shutdown the servers on a weekend for cost cutting purpose. How can we calculate which servers are consuming more power in the ...
1
vote
2answers
2k views

Does ESXi server power down hard drives when no disk activity is detected?

Does ESXi server power down physical hard disks in ESXi server when no disk activity is detected? Or, when very little disk activity is happening it might get cached instead of spinning up the hard ...
33
votes
6answers
23k views

How do I permanently disable Linux's console screen saver, system-wide?

I've got an Ubuntu server that boots up in text mode. It rarely has a screen or keyboard attached to it, but when I do attach a screen, I usually have to attach a keyboard too, because the darn ...
6
votes
5answers
9k views

automatically shutting down an ESXi host nightly

We just picked up a new development server that I've loaded ESXi on. The room it's in is well ventilated during the day but at night the door is closed and it gets quite toasty in there. I've been ...