Hardware :: Bringing Power Down On Home Server?
Sep 19, 2010
I just got my electricity bill for July & August and noticed a dramatic increase in my consumption. Basically, the amount of electricity has almost doubled (from 433 to 748kWh) and the increase happens mainly between 5pm and 11pm, as well as during weekends... I did not have to search for too long before I pointed out the issue... My new home server. It is configured to auto WOL at 5PM and auto shutdown (Cron) at 11PM. It also runs 24h/day on weekends...
Here's the server's config:
Hardware:
MSI Platinum K9N mobo
AMD Athlon64 CPU
1GB DDR2 Ram (2X 512MB)
[code]....
Everything else is only "run-on-demand" or scripts... I am searching for suggestions on how to minimize the power requirements. The video card is going to be replaced soon, by a standard PCI 4MB videocard. Next I will get rid of the 80GB & 750GB HDD's to be replaced by a 1.5TB HDD...
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Mar 1, 2010
I've been running my Dell SC440 as a home server/workstation for about a year now and whilst it can cope with both roles, it is power hungry, loud and does get a little slow down sometimes. What I am looking to do is create a home server to take away the need of it to be on 24x7.My requirements in a home server would include:
- Media Server (using TwonkyMedia or uShare)
- NZB Downloader (hellaNZB or sabNZB)
- AFP + NFS file serving
- rsync/unison for Linux backups and N900 media sync and backup
- Email/Calendar/Contacts hosting and sync (zimbra or zarafa?)
I would like to achieve this with an Acer Revo and a couple of 1 or 1.5TB external hard disks, I'm unsure if the Atom processor would be strong enough for all of these services, although I could test it using my netbook, if that can cope, the Revo would be able to easily.
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Apr 25, 2011
I am looking for some advice on a Linux home server. I'd like it to be low power and reliable. I have searched and found a lot of information online already, but it's too hard to choose due to the many options and opinions.
The main reasons for me to get a home server are (more or less in order of priority):I'd like to have my files centrally, so I can reach them from my laptop, my PC, my phone, from work etc ( or stream them)
I'd like to have my own e-mail server for my own domain(s), perhaps also Jabber
I'd like to have my own web server to develop and perhaps even to host a website
I might play around with home automation in the future
Of course I am not here to ask questions regarding the software I would need, but I'd like to get a nice low power (I am a bit of an environmentalist, but not extreme) and reliable server.
I also get the impression that many people like AMD Geode processors and the choice is certainly not limited to these products. I am here for suggestions.It's not a necessity that the server will be small. Actually, I think I'd like to have something with two discs, so I can use RAID (no experience, but it makes sense to do), so the B3 looses from the Via here.Also, I like a bit of flexibility, so I think I would prefer a home network in the future with a separate modem, router, server and WAP over an all in one solution. Perhaps even have the hard disks in a separate case? Actually, I think it makes sense to place a server out of sight (aesthetics, theft, etc), while a WAP should of course be fairly visible.
At the moment, I do not have lots of files to store, but I think it makes sense to get decent capacity anyway (at the very least 500 GB and expandable).Making a good choice is more difficult for me than spending the money. I'd be happy to spend something around 400 - 600 for a good product. I am able to put components together myself if that would give me a much better product for the same amount of money (did it before, but not so often).
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Dec 14, 2010
I have a client's linux server where someone added a script which sends spam mails from the server's local loopback address (127.0.0.1) all my seniors worked on it and couldn't trace the script on the server this issue was going for a week, now I have an idea to bring down the loopback interface of that particular server(ya, that was not a permanent solution but just had an idea), but my support manager told that it will bring the whole server down(so far as i have learn't loopback address is used only for testing the NIC card's functionality), is that really bring the server down.?. How ever i tried this using a test machine all the connections works fine even after i bring down the loopback interface. As my client's server is a production server i can't test it there without clear knowledge, can any one help me out whether will it bring down the server or will it cause any side effects on it(i know that you guys are experts so i am asking it here)?
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Jun 22, 2011
I am running or was running a mail server. It used the titles service to scan emails but keeps bringing up a temporary failure right. But when I run the command 'amavisd' It brings up this error here:
[Code]...
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Feb 28, 2010
I built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
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May 18, 2011
I am planning to make a home made NAS running ubuntu server 10.04 LTS. Nothing fancy, simple samba with open access for all and openssh for admin access over the network. The NAS will not have heavy traffic, two home computers with occasional access, just to serve as central location. I am in doubt which CPU to use and I am after both budget and power saving solution.
1. I have an old Athlon Clawhammer I can use but the TDP of 90W is putting me off. I can also use existing 2x512MB DDR-400 memory with it. The board would be new.
2. I would rather invest in new mini-ITX board with built-in dual-core Atom D525 (TDP 13W), VGA and Gb ethernet. I would add 2GB DDR3-1333 memory.
Since I would need a new board for the Clawhammer too (current one doesn't have SATA), I am more attracted to option 2. Would the dual-core Atom be enough running this simple home NAS? I think it should but my experience with ubuntu server is limited.
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Aug 7, 2011
I'm having an issue with Ubuntu 10.04 server, where it is not bringing up a console on the local machine.
The only display on the local screen (and in /var/log/boot.log) is:
Code:
fsck from util-linux-ng 2.17.2
/dev/sda1: clean, 100725/2342912 files, 781590/9357824 blocks
init: ureadahead-other main process (595) terminated with status 4
Hitting <alt>-<f[anything]> just brings up a blank screen with a single flashing cursor, and no login prompt.
The ureadahead message sounds like the classic Windows error: "The operation could not be completed because of the following error: The operation completed successfully." So ureadahead isn't the problem.
Also... ssh works, but other services (apache, mysql, smbd, nfs-kernel-server, etc) need to be started manually.
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Oct 23, 2010
Instead of using sudo to start the listener, first use su - oracle, then start the listener.
su - oracle
password: oracle
lsnrctl start LISTENER
lsnrctl status
I was then able to bring up the Oracle home page a few minutes later with: [URL]
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May 21, 2010
I'd like to know if it's possible to bring pages from a particular process into main memory, or to set parameters for a given process, or class of process so that it will not be swapped out.
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Jul 31, 2010
I have an old computer with 128 megs of memory and one hard drive of 120 gigs. I have gone back and forth between installing Ubuntu and Puppy. Right now, despite advice against it because of the limited memory, I am thinking of sticking with Ubuntu. Puppy has some problems but that is not what I want to address right now. What I want to ask about in this discussion thread is how to get Ubuntu onto the Internet.
I think I get it, but I want to be sure. There is a menu option called "Network Connections" and it opens a window that has several tabs. Since I have a wired connection, I click on the "Wired" tab where it shows my connection in a list box. When I click on Edit it opens another window that displays a MAC address and there is an "Apply" button. When I click on this, there is an Authenticate window that opens up and it prompts me for a password. Is this password that it is asking for the same thing as the password that my router uses?
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Jan 15, 2011
I have recently started using this laptop as a host for tinkering with vmware. I have wicd installed on it, which normally brings up wlan0 and connects to the nearest configured wireless lan automatically.
Vmware has installed another, virtual, NIC on the host, called vmnet8. I configured it in /rc.d/rc.inet1.conf with a static IP.
Now when I boot up the laptop vmnet8 starts up and running and correctly configured, but wlan0 doesn't. I have the wicd icon in my systray but it doesn't find a network, even when i click on it and refresh etc. I have to open a terminal and "ifconfig wlan0 up" in order to get the NIC up. Then wicd works fine.
Networking configuration in Slackware looks like a bit of a nightmare frankly (why i usually use wicd!) so I thought i'd ask you chaps before messing about too much.
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May 11, 2010
My new Squeeze machine detects all of my hardware including the LAN and WLAN cards, but only brings up the LAN card. There isn't even an entry for it in /etc/network/interfaces for me to modify. I tried adding the info manually but then the entire network wouldn't start. I had it configured as a static IP and I know the commands were correct due to them working on the LAN card. I believe that the name "wlan0" was causing the problem, but how else can I bring it up at boot?
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Sep 27, 2009
Recently (I can't put an exact date on it but its been within the last few weeks) on boot I've had to wait two or three minutes for my system to bring up my network interface, in a way its never done before...The output of /var/log/boot.log is as follows:
Code:
Welcome to Fedora
Press 'I' to enter interactive startup.
[code]...
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Mar 15, 2010
I have never had this problem before but when i boot the system hangs for about 2 mins when brining up my harddrive I am using scsi disk support and the newer ATA driver for my Harddrive (the same as ive always used but for some reason the system just hangs for like 2 mins then boots normally
this is somthing that urks me and i know im missing somthing the platform is a hp nc8230 notebook please request any information or how to provide it as i am new to linux (kinda) but for the life of me i can't figure this one out
[Code]...
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Mar 30, 2011
How can I boot Debian 6 directly into the desktop without bringing up the login screen or login password?
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Apr 24, 2010
I'm running Slackware 13 with a custom kernel based off of 2.6.32.3. I tend to leave my system on 24/7, as well as my web browser. Originally it was Firefox and now it is Google's Chrome. Usually about a day of leaving the web browser open my HD activity spikes so high that I can barely do anything on the system until I kill the web browser. This has been happening with both Firefox AND Chrome! As soon as the browser processes are killed, the system returns back to normal.
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Mar 18, 2011
So I am basically just curious about this, but is there a way to prevent fork bombs from bringing the system to grinding halt in Ubuntu, without setting hard limits on the resources available to users? I read about fork bombs on Wikipedia, and being the masochist I am (and not having any unsaved work), I tried entering those 13 characters into terminal. Wow. I have never seen a computer freeze up so fast.What really peaked my curiosity is that the same fork bomb has almost no effect on the performance of Mac OSX (10.6). I know that one can limit the availability of resources to specific users. Is that essentially what Snow Leopard is doing?
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Jan 6, 2011
i recently installed apache2 mysql php exc. to run a realtime stat site for my servers.the only thing is that the buttons/ images are not showing up.i checked that my GD was up to date and installed perl5 GD. dont know what else to check.my site with problems go to:http://24.20.177.228/stats_public
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Jun 4, 2010
I use Squeeze with Xfce. My problem is that recently (after the xfce updates) the xfce power manager doesnt react to the power button - it is set to suspend. I dont have gnome-power manager or anything like it running.
If i reboot the computer, the power button will work but if i suspend and resume, it doesnt work again.
The computer is built on an Asus M3N78-VM mobo (2GB RAM/Athlon3200+ single core).
acpi_listen detects the button press.
Any thoughts?
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Jun 21, 2010
I am using Ubuntu 10.04 64-bit and I purchased a new ALFA AWUS036H wireless card. I would like to know if this "1Watt" wireless card is configured for full power. iwlist wlan0 txpower results:
wlan0 unknown transmit-power information. Current Tx-Power=27 dBm (501 mW). It appears to me that I should be able to increase the power. "iwpriv wlan0 highpower 1" does not work. Do I need to patch the new default driver that comes with Ubuntu 10.04 64-bit with the aircrack one following these directions:[URL]...? Monitor mode and a injection tests seem to work fine with the driver I have installed.
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Oct 15, 2010
A small combined webserver and fileserver with focus on power consumption and storage size, what would be a cheap and stable solution to this in terms of hardware ? I'm not interested in NAS solution only servers ..
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Apr 4, 2011
I'm looking for any power monitoring devices for Linux to allow monitoring power quality, voltage changes, and outages. This would be for North American three phase power system. I want to have this data fed live to my own program. It should be something much better than just jury-rigging a circuit to fee the power waveform into 2 or 3 audio cards.
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Mar 25, 2011
I built this small server for a coworker that by nature of its purpose will get turned off and on often. I want it setup so that he can just press the power button to have it power off normally. Normally I can set that up in Gnome, but in this case I don't want to install a GUI. Is there software that can tie the button and the the poweroff/shutdown cmd together without needing a desktop environment
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Oct 30, 2010
I had unplugged my PC last night as sometimes there's storms at night this morning I plugged in PC and the power light is blinking and the PC wont come on at all tried different power cord, same result
PC is a AMD athlon64 3300+ 2.4ghz SiS graphics
probably the power-supply or what?
If it is the power supply, how do I find new one as I've never had to replace anything on it or any other PC?
Also, I really need access to the hard drive but it's a weird hard drive and was wondering if I could put that hard drive in my K7 PC, which already has 2 drives in it can a pc have 3 drives? do I have to add/have another ribbon cable for 3rd drive?
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Jan 23, 2010
I have an EPIA M10000N (VIA Nehemiah 1GHz integrated CPU) motherboard (square MB each side 17cm) in a GA610 case. These last two links show the situation quite well.I have neither a CD/DVD drive, nor a floppy drive in the case. Only a hard drive, the motherboard, and the power supply.As you can see in the pictures, the whole thing is cooled by a 4cm fan on the CPU heat sink, and another 4cm fan at the rear of the power supply.This is rather noisy (and unbearable in a living room!).After looking (not that hard, though...) for a solution, I did not find a proper (less than 20dB, and good quality) solution. So the living-room PC became a server. It's either that of throwing it away, anyway. Having nothing to loose, I want to try something. And I'd like to have your opinion, dear reader.I want to:
- remove both 4cm fans,
- remove the cover from the power supply,
- cut a round hole on top of the case,
- fit a 12 or 14cm fan on the lower side of the round hole, right above both the CPU and the power supply.
I'm new to this cooling stuff. I saw that a 4cm fan can extract up to 5 CFM of air, whereas a big fan can extract at least 60 or 70 CFM!Changing two noisy 5 CFM fans with a single silent 60 CFM fan seems OK to me.What do you think of the idea?Next, for better reuse, I may buy a Noctua 14cm NF-S14 FLX. It is big and silent, and 71 to 110 CFM seems a lot! And its fixation holes match those of a standard 12cm fan, thanks to the unusual shape
Do you approve?
I still hesitate a bit because:
- the Noctua NF-P12 1300 might be more sturdy due to its regular shape...
- the Enermax Magma UC-MA12 might be a better choice because it can be washed... on the other hand, because of that, it may get loose with time...
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Apr 30, 2011
For some reason we have some network storage not mounted properly after an unexpected restart (ie OS or memory issue) and the subsequent reboot. Has anyone come across this before? It's a bit strange that certain disks are not mounted.Anyway, to detect this, can we insert an extra line into the /etc/inittab to perform post start checks. For example, I have inserted an extra line before the runlevel scripts in /etc/inittab file.
The line will call /usr/local/fstab-check.sh to perform a check on the disks mounted via /etc/fstab. Am thinking of comparing the output from the command "df" versus the content of /etc/fstab.
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Sep 19, 2009
I had a power failure the other day and my server shutdown abruptly. After bringing the server up I noticed that the /var partition came up as read only. I was not able to edit the crontab, not able to write to files within /var/log/ and do other write operations within /var.
I did a mount and it showed that /var was mounted read and write but when trying to run certain operations the system was still saying that it was read only.
[Code]...
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May 28, 2010
On the last release, I had this app installed where I could pick my power profile. I could use power conservatively, and performance would suffer a bit, but longer batt life,or I could have it automatically detect, or I could have the apps use all the power they want and then some. I'm looking to reinstall that app. What was the name of it?I can't remember, and so far, can't find.
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Nov 24, 2010
I want to install a DLNA server on my ubuntu home server. It will primarily be used for photo browsing on my PS3, but general media support would be nice. (I use Squeezebox server for music.) What are my options, and what are the main difference between them.
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