Under Consumption Issues W/ A PSU
Jul 27, 2008
Would it be bad to run only 24 hard drives on a 900 watt redundant PSU setup provided in a super micro machine? No motherboard, just the hard drives and backplane? I know that if PSU's aren't loaded enough, they can malfunction or shutdown, as well as encounter efficiency issues. Is there a general rule of thumb for this sort of thing? Should I see if supermicro can give me a lower rated PSU or something? I searched around on the net a bit but couldn't find anything solid for this particular question..
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Aug 10, 2009
I need to know what happens when a rack has capped its (lets say) 5A limit. I'm trying to calculate what exactly I can put into a rack and am considering that not all servers are going to be 100% load, as that would be bad performance anyway.
I guess it could do the following (but really don't know):
Cap performance of all servers
Cause system failures
Trip
The rack would have servers, a switch and perhaps a Remote Power Strip and Firewall. I don't know how they would be affected.
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May 20, 2009
I was thinking about changing one of my servers to the desktop centos version instead of pure ssh access. how much added resources will this use?
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Apr 22, 2007
I maybe interested in co-locating a server but looking from the power max for a 1U server of around 0.3Amps I'm wondering if it will be easy.
Doing the equation 0.3 * 240 gives me 72watts I believe. (Where 240 is the voltage for the UK). So with this, it doesn't give me much choice considering most processors run around 90watts and that doesn't leave any room for the power from hard drives and memory. Does anyone know what the average power consumption is for hard drives and memory?
I'm not looking for a really power system, but I would like something that if I pull it out of co-location that I can still use it one way or another. So was looking at an AMD Athlon 64 X2 where there is a 34watt version that is seemingly discontinued. Or use an AMD Turion X2, which are again hard to find, with a mini-itx board. Running with the mini-itx board, there is also the Intel Core 2 Duo which I can get quite easily.
Does anyone else co-locate and how to you manage the specification?
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Apr 10, 2007
I've been having a problem with my webhost (in a shared server), and I don't know if this should be a usual problem or if it is my fault or if it is the host's fault.
The thing is I am getting lots of consecutive petitions for the same files from an IP at a time, which in my logs gets registered like this:
Code:
212.166.183.3 - - [03/Apr/2007:10:07:56 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 200 1388809 "http://www.mysite.com/desc.html" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:07:56 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 66716 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:07:58 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 38519 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:08:00 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 34072 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:08:01 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 28175 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:08:02 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 30297 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:08:04 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 26516 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
212.166.183.3 - - [03/Apr/2007:10:08:05 +0200] "GET /downloads/User_manual.pdf HTTP/1.1" 206 40302 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)" "-"
The thing is I am getting too much bandwidth consumption, and since I've only been with this host for 3 months now, and I never had similar problems before, I was wondering if this problem is something I can do something about? Or is it the host's config?
Why do these repeat 206 petitions happen?
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Apr 14, 2009
There are Small Hosting companies and There are Big Hosting companies.
And Then There are Huge Hosting companies.
Who Consumes The Most Resources?
Your Views On It?
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Jul 28, 2009
my friend has an un-managed VPS plan in kloxo-hypervm mode
yesterday the stats showed in hypervm as the space was over used, so I personally deleted the processed stats which cleared around 20gb space, again today the space is totally consumed, I don't know why its happening and have no clue where are the other locations where the space could have been consumed i.e similar to location of logs or any other specs which could have been consuming space
unknown space consumption - very high no idea how!
its actually an image hosting site and I noted that not many pics and not much space was consumed in the pics uploaded in the last 24hrs but this really puzzles and troubles me as I am currently tracking my friend's VPS, please help me sort this out problem and keep my head high before my friend
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Feb 23, 2008
My nearest major city is Manchester, so naturally I'm looking for rackspace in the region.
Unless anyone has better suggestions, I'm thinking of going with NorthernColo. They start at £50/month but jump to £70/month if you draw more than 1A of current.
If my basic physics is anything to go by, 0.5A at our 240V means a maximum server power rating of 120 watts.
...are there any dual-core / 2GB RAM box configurations which consume less than 300W thesedays? My own USB mouse for my laptop consumes 50mA.
Otherwise I'm begining to think of their 0.5A pricing as being a bit of a scam, since the 1A price also pays for 2U worth of space.
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Apr 13, 2008
how to go about spec'ing the power consumption of a server. below are the specs of the two servers I'm interested it.
Dual Xenon 2.8Ghz Processors with 2MB cache
1 250Gig SATA Hard Drives
1 500Gig SATA Hard Drive
4 Gigs of Ram
------
Dual Xenon Quad Core 2.66Ghz
1 80Gig Hard Drive
2 320Gig Hard Drives
1 1T Hard Drive
8 Gigs of RAM
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Mar 12, 2008
I have a vps with 1GB of ram and mysql consume lots of memory I googled about this subject but everywhere mysql performance tuning is described
mysql has 10 threads like below
7338 mysql 0 0.0 4.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
7339 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
7378 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
2507 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
2517 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
2518 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
2519 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
2520 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
7399 mysql 0 0.14.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
5162 mysql 0 0.04.5 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/zeta60.wuhosting.com.pid --skip-external-locking
my.cnf properties are
set-variable = max_connections=90
set-variable = wait_timeout=10
set-variable = connect_timeout=10
set-variable = long_query_time=4
skip-locking
key_buffer = 2M
max_allowed_packet = 1M
table_cache = 4
sort_buffer_size = 64K
read_buffer_size = 256K
read_rnd_buffer_size = 256K
net_buffer_length = 2K
thread_stack = 64K
table_cache = 1M
query_cache_size = 1M
[isamchk]
key_buffer = 8M
sort_buffer_size = 8M
[myisamchk]
key_buffer = 8M
sort_buffer_size = 8M
[mysqlhotcopy]
interactive-timeout
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Sep 8, 2008
Can anyone share some experiences on this? I'm new to VPS so it's not clear how much RAM cPanel will consume comparing with Webmin after everything is configured for production?
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Jan 18, 2007
If I were to build a 2.4 core 2 duo w/ 2gb ram and 4 x 500gb sata and 2 x 160 sata, both in raids. Do you guys think that would be above 2 amps usage? I was thinking maybe the efficient cpu would make up for the large amount of hard drives, all though their IO activity won't be that high. Maybe if someone has a similar setup they could shed me some light .
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Apr 19, 2007
I have a 256 MB VPS. Currently I run BIND to serve a few zones as the primary server and twenty more as the secondary. BIND’s memory footprint is >40 MB which is too much for such low usage. I want to replace BIND with other software to free some memory. Could you please tell me what DNS server has the least memory usage while supporting AXFR? No recursion needed.
What I’ve tried was djbdns. Its zone file format is terrible but perhaps a Web interface such as VegaDNS can help, and TinyDNS does use much less memory than BIND. What else is there?
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Jun 12, 2008
you are going to purchase a new rack and the data center offers you a specific amount of power.
you are going to use server's specs like this
Dell PE 1950 III
two processors intel xeon E5410 2.33 GHZ , 24 MB cache, 1333MHz FSB
2x250 sata HDD
8 GB RAM
My question is how many amp's need for one server?
or how much power does one dell PE 1950 III with the previous specs needs?
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Oct 30, 2008
I'm building a storage server out of spare parts that are lying around here at the office. Purchasing a brandnew server kinda overshoots it's target, since all basic hardware is available lika a big Chieftec 4U casing with 2x 4drive SATA hotswap bays.
The machine will just be dumb storage for saving our backups.
The plan is to add a decent serverboard, proc and some ram as a baseline. On top of that a 3ware 8-port RAID-controller with 8 1TB harddrives (seagate has some nice ones).
Now the only issue i'm having is powerconsumption. The case has an 460W PSU, but I'm not sure if that's enough.
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Feb 16, 2008
What are the best ways to reduce server power consumption?
I have a Dell Poweredge 860 (2.4ghz QC, 5GB RAM, 2 HDs) and it uses 0.46AMPs when running normally. The problem is at boot up it spikes for a few seconds here and there to about 0.6 and this is a real problem as I only have a 0.5AMP allowance.
Should I underclock it? Remove the CD Drive?
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