The power-management tag has no wiki summary.
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0answers
26 views
Server BIOS “resume by alarm” after power failure [closed]
I got a PC with Gygabyte z68ma-d2h motherboard and running Ubuntu 11.10, NO UPS and new flash battery.
It wakes up eveyday at a scheduled time. This is done thanks to a BIOS setting: "Resume by ...
1
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1answer
49 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
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1answer
7 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
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1answer
46 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 ...
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2answers
67 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
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5answers
134 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, ...
1
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1answer
48 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 ...
1
vote
2answers
80 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 ...
0
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1answer
61 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 ...
1
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2answers
283 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 ...
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2answers
42 views
Power requirements for server setup at home [closed]
I am trying to host my website at home and for this, i am trying to do some power wiring to bring in the needed power in terms of amps. I want to know any document which talks about,
how to determine ...
2
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1answer
152 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 ...
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votes
1answer
163 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 ...
3
votes
4answers
320 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. ...
0
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2answers
79 views
What are the ramifications of R720 Power Capping?
According to Dell's documentation (PDF) administrators can cap the new R720's at a certain Wattage. What are the ramifications of doing this? Will the server power off once it hits the cap? Is there a ...
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2answers
68 views
What are some SMART Criteria I can use when comparing “green” datacenters? [closed]
I'm looking to reduce my carbon footprint and want to find a "green" datacenter. There are so many ways to define a "green datacenter' I'm looking for examples of SMART Criteria such as
20% of ...
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2answers
4k views
How to enable sleep/standby on Windows Server 2012 Hyper V
I know it's possible because sleep works in HyperV under Windows 8.
edit: I know this is probably not "supported".
2
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2answers
275 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 ...
31
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2answers
667 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 ...
0
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0answers
290 views
How to disable monitor “sleep” on Ubuntu without access to X?
I just received a CuBox (basically a tiny ARM based PC). It comes pre-installed with Ubuntu, and I did not (yet) want to fiddle with the OS itself.
My aim is to have it automaticall start a browser ...
0
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1answer
384 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 ...
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5answers
3k views
How to find out if my Dell R210 server has iDRAC with shared network connection or dedicated?
My server is Dell R210 and it is colocated. I need to find out whether the iDRAC BMC on this particular box has dedicated ethernet connector or is it shared.
Also - do I always need separate IP ...
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3answers
2k views
How IPMI works on Dell R210 server?
I have Dell R210 1U server (W2008R2 Enterprise).The box is currently in another country on colocation. I am thinking of moving it to another colocation.
I was told that if my box supports IPMI I ...
0
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1answer
83 views
Metered-By-Outlet-Monitoring PDU [closed]
I see APC offers Metered-By-Outlet PDUs, however they only offer 30A - 32A 208V PDUs. (URL: http://www.apc.com/products/family/?id=478)
We are looking for a 16A 120V PDU that offers power usage ...
0
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2answers
169 views
Cutting power to linux box. prevent filesystem checking on reboot (and hopefully damage!)
I have a small linux box with a dedicated task of reading sensor data and comparing values against a read only (ie i won't write stuff to it, but haven't done anything to make it actually readonly) ...
1
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1answer
545 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 ...
2
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4answers
2k 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 ...
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2answers
94 views
What is the best way to save energy use in companies? [closed]
i work in a little (biotech) start-up company and noticed that the client pc's are mostly in stand-by mode (user-logged off) during the weekend, where nobody is actually there. So what is the most ...
7
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2answers
340 views
Green-IT: How do you deal with poweroff systems in your system monitoring?
Many of you probably have completed or are contemplating Green-IT projects with the goal to power off idle or unneeded systems when demand for computer resources is low:
How you did handle this ...
5
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3answers
714 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 ...
0
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2answers
188 views
When buying a rack-mount server and renting space, what's more important? [closed]
If I'm buying a server, if I consider the price/performance ratio for buying more rack space, or buying more powerful servers, which is more inexpensive? Getting the most powerful box and saving a ...
4
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1answer
350 views
How does a CPU ever go Idle enough to enter deeper C states?
Even if no user process is running, don't the kernel processes keep the CPU active enough so as to prevent it from entering a deeper C state like C1 or C2 ?
0
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6answers
441 views
How to protect power strips from accidental shut-offs/“cleaning lady” attack?
Are there any power strips or products designed to defend against a "cleaning lady" attack (cleaning crew is vacuuming the floor and bumps the power strip switch, turning off all the connected ...
2
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3answers
776 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 ...
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5answers
2k 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 ...
4
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1answer
901 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 ...
4
votes
1answer
433 views
How to DISable display sleep on Dell PowerEdge R310
The display on these PowerEdge systems goes to sleep after some period of time. Normally, when you plug in a KVM, you have to press a key to "wake up" the display. I'm connecting these servers to a ...
3
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1answer
154 views
Turn server back on after power loss with FreeBSD
I have a VIA M'SERV S2100 with FreeNAS 8.
Since I upgraded from FreeNAS 7, the M'SERV no longer turns back on after suffering a power failure. As I remember it, there was a setting for it in the old ...
0
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1answer
115 views
What tools are available to sleep desktops at night to save power?
Many companies have desktops that are on 24/7, but are not likely to be used between, say, 6:00 at night and 7:00 in the morning. How can we schedule them to sleep, wake up before the user is likely ...
0
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0answers
150 views
Ubuntu power management logfiles? Forensics (maybe?)?
I'm in the unfortunate position where I need to determine what happened to a remote server of ours. I only have SSH access to it and it's a netbook running ubuntu 10.04 32 bit. It dropped offline for ...
4
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3answers
10k views
How to disable all power management in Ubuntu (for a server netbook)?
I need to disable everything related to having the netbook-server go into sleep/hibernate/shutdown. Spinning down the disks during inactivity is fine, but it is crucial that the machine remain in a ...
0
votes
1answer
273 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, ...
3
votes
3answers
291 views
Proof that hibernating the server over the weekend is not a good practice
Is it true that the life of the modern server machines is longer if you never turn them off instead of turning them off when not needed?
I am talking about database server machines that are not used ...
3
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3answers
221 views
Testing UPS output for 'clean' power
Is there any way to test the 'cleanliness' of the power your are getting at your PC from the UPS and also from the wall?
I have a powerful workstation (Dell T7400) that is now on its 3rd PSU in 30 ...
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2answers
139 views
Hibernating servers
Is there any drawback hibernating - database - servers during night and the weekend? We think that it is a good way to save machines and power.
Is it possible that daily hibernation can be harmful ...
2
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1answer
74 views
Testing power consumption
I'm buying an UPS for the new server. As always, money is short, so I need to buy one which is sufficient, but not needlessly overpowered. The server has a 900 W power supply, but the retailer says he ...
0
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2answers
2k 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 ...
2
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2answers
181 views
A/B Power Configuration for Server Cabinet
I'm upgrading our cabinet at our colocation for A/B power and wanted input on which of our options are good or bad.
First, a bit of an overview of our setup: We currently have a single circuit feed ...
1
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2answers
425 views
Problem loading cpufreq module
I'd like to install cpufreq modules on my server .
I tried
sudo modprobe acpi-cpufreq
but got the error
FATAL: Error inserting acpi_cpufreq ...
3
votes
2answers
231 views
Power reading 2 amps with 13 servers?
We have a rack in a data center and we became suspicious of running out of power.
But our power bar says 2 amps! It has a live indicator, so it's not just one reading. Do you think there's something ...
