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1
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2answers
418 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, ...
0
votes
0answers
12 views

Tool for helping where new datacenter components should be placed? [migrated]

I am looking for a software tool helping me to find an optimized place where new datacenter components, such as servers and network devices, should be placed. Important criteria are: climate of ...
1
vote
2answers
3k 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
42 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 ...
-2
votes
2answers
49 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 ...
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 ...
11
votes
12answers
22k 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 ...
5
votes
1answer
86 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
276 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
708 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
73 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
70 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 ...
1
vote
0answers
281 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
52 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 ...
38
votes
3answers
1k 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
0answers
98 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 ...
0
votes
0answers
112 views

Can't power on remote Poweredge 1950 using DRAC 5

There was an issue with a build server this morning, so I decided to log in using the vSphere client to view the console, but no response. As it turned out, the server had simple turned itself off ...
1
vote
0answers
277 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
141 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
147 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 ...
0
votes
0answers
55 views

Determining a laptop fleet's battery health

I'm trying to determine the battery status of my school's laptop fleet. I should be able to extract this using WMI (as per http://msdn.microsoft.com/en-us/library/aa394074(v=vs.85).aspx ) but the ...
5
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
3k 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
68 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
255 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
4k 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
124 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
392 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
2k 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
229 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
9 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
213 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
192 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
80 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
67 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
368 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
5k 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
96 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
498 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
20k 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
7k 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 ...
2
votes
1answer
306 views

LSI RAID-on-chip with RAID6 over two SAS links goes red when HDD enclosure is powered cycled; how to recover?

I have a RAID6 array managed by LSI 9286-8e card. I also have Sans Digital 24-bay NexentaSTOR JBOD enclosure with SAS extender built-in. They are connected to separate UPS devices. Normally, I'd ...
0
votes
4answers
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 ...
-2
votes
1answer
307 views

linux “hdparm -B” what is a good power management value? [closed]

I run a home server with Linux (ubuntu). Data (not the os, not swap, not /home) is stored on a large software RAID5 array. The server is on 24/7, but to reduce noise I would like the raid drives to ...
2
votes
2answers
12k views

How to utilize IPMI on Windows?

My organization is primarily a Dell shop running Windows. Most are recent models that support IPMI 2.0. (Dell 1950, for example). At a minimum I'd like to use IPMI to perform remote chassis power ...