Making A High Density Rack
Oct 28, 2008
if I co-located in a 44U cabinet and I loaded it with 44 X 1U Rackmount servers so that the entire cabinet was full. Would all my servers fail/crash from touching one another due to over heating? Or would you say typically in a cooled datacenter with a hot and cold row setup this would not beca problem. The datacenter will let me add more amps per cabinet but their cabinets are only 44U. Has anyone attempted to do this? I hear rackable systems can do it but I plan on using 1u supermicro servers.
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Dec 6, 2007
With all the high power servers/blade servers, the 40A (@ 110V) power limit is way too small. I am wondering if there is any colo space targeted for high density application, e.g. with 10 KW/cab limit for 60A @ 208V power drops. Does anybody know of such high density colocation space? East coast is preferred.
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Jul 2, 2009
Anyone know of a good high-density (power) Data Center in the Bay Area (CA) ? need to host blade-chassis and SAN gear
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Jul 22, 2008
What are you guys using for cheap storage for backups? Tape won't work for me because I have a lot of data to be incremented every night and it all needs to be accessible 24x7 without my intervention. From what I understand about tapes (never used them) they aren't the best for getting what you need quickly.
Right now I am able to get cost per gigabyte down to 47 cents per useable gigabyte (factoring in two drives lost to a raid 6 and 90% format overhead), or about 37 cents per gigabyte for total capacity. I can achieve this by throwing a nice quad core xeon and like 4gb of memory and a nice 3ware card into a 24 drive bay supermicro system, and have the os run on a separate raid 1 on a separate card. It would be a pretty nice setup.
On the other hand, I looked at dell's powervault or whatever the storage devices are, the MD series, and things worked out to be 50.3 cents per useable gigabyte, or 42.3 cents per gigabyte for total capacity. And thats headless -- not including the actual server to interface with the 30 disk array. So that makes no sense financially, AND thats assuming that I am able to order it blank with no drives and buy my own drives, avoiding dells ridiculous 650-700$ pricing for terabyte drives.
Is there a better way to achieve low cost storage, that doesn't exactly have to be lightning fast? I only need to run rsyncs to it. I can't imagine that building a server with the array inside of it is cheaper than buying a stand alone enclosure or system for storage...not even iscsi or anything, just eSATA or something.
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Apr 8, 2009
i want to have a windows server and make 5 vps on it what should i do to make the vps
is there is additional fees or i only pay the money of the server & for the windows
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Oct 25, 2008
i have windows 2003 dedicaited server i need software so i can make vps i need a free one and easailly to make vps and assingh ips and stuff
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May 13, 2007
I was wondering I've been having problems with getting my web server going.
I'm using Apache 2 on my Windows XP SP2 machine. I have a Linksys WRT54GX2 router, and I have Charter 3MB Cable internet. I already called charter to see if they allowed web servers and they said they do. I also asked if they block ports, and they said they don't.
Now my problem... So, I originally thought maybe charter blocked port 80, so I used NO-IP to work around that, I did port forwarding through that. Well, I used there tool canyouseeme.org and it said it couldnt read any ports i put in.
All my firewalls were off and i had my router firewall off. I even put my computer in the DMZ part of my router. I'm about to see if i can connect my modem directly to my computer without having a problem but i wasn't able to a bit ago. Anyone got any clues to waht i could do if nothing changes when i put my modem to my computer.
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Oct 19, 2007
I tried everything, nothing seems to work. I was in IIS for a good 2 hours on my windows box trying to figure out how to setup an FTP on a specific directory. Whats a good program to use for a windows FTP to easily setup a read only FTP. I just want to be able to allow me and my friends to grab the files out of one specific directory.
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Jun 1, 2009
I am trying to customize the knoppix CD so that the SSH server can be started while the system has been booted up. I've tried to install the service and setup the appropriate run level (update-rc.d) but still the SSH daemon couldn't be started up automatically. I had to start it up manually while the system is booted up. I have an idea is to put the startup command in the /etc/rc.local, but not sure if that would work, but I prefer to start it up from the run-level. And what about the /etc/inittab, any idea on that?
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Dec 19, 2008
My brother is moving from shared to VPS.
Apollo has a managed VPS for $40 (with 20% off for a yearly purchase).
25GB:750GB:512MB
Any problems with this package?
Any problems specifically with Apollo VPS?
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Aug 3, 2008
Hey heres what happens when i do a traceroute to amazon - over a maximum of 30 hops:
11 33 ms 35 ms 36 ms ae-7.ebr3.Atlanta2.Level3.net [4.69.134.22]
12 58 ms 53 ms 54 ms ae-2.ebr1.Washington1.Level3.net [4.69.132.86]
13 53 ms 53 ms 53 ms ae-81-81.csw3.Washington1.Level3.net [4.69.134.1
38]
14 47 ms 48 ms 47 ms ae-3-89.edge1.Washington1.Level3.net [4.68.17.14
4]
15 * * AMAZONCOM.edge1.Washington1.Level3.net [4.79.20.14] repo
rts: Destination net unreachable.
Trace complete.
Is there a way my server unreachable without installing a hardware firewall?
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Apr 17, 2008
I've ordered 1gbit/s port with one my dedicated servers. But I am still unhappy with the speed of download.
I have 2 mbit DSL connection at home and I can download files with 90 kb/s from the server. I also see the same speed on a 100mbit port server. But I can download files from RapidShare with 210 kb/s..
What do you recommend me to do make faster downloads from server-side?
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Aug 28, 2008
Hello. I owned a VPS not long ago, and hosted my WordPress enabled site on there. I used approximately 9 plugin's, all of which are very low-usage and mainly used for the backend. I noticed during every day use the VPS slowed down, is this due to the WordPress script or the VPS itself?
The VPS had 1024mb RAM (1531mb burst), and equal share CPU.
I don't own the VPS now, but would appreciate some answers as I may buy a new one soon to host the same type of site.
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Jun 10, 2008
build our our server network for our business and power it with our new 15Mbps/15Mbps Fios Business Plan.
Now I know enough to set up a home network just fine but dealing with a server end is a little different.
What I need a for someone to help me with advise on hardware for our setup ie: Routers, Switches, ect ect
We are looking to start with 2 boxes at this time and may go as big as 5 so we want to be sure we have the equipment to handle it
I would like a Router that allows me to connect 2 uplink connection so if we need to upgrade we can add a 2nd fios line.
a decent router to handle this?
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Jul 4, 2007
I did have a chance to really talk with the owner, Navid on the issues I did have and on what was really going on. One of the things I did have trouble was downtime, and I was assured no more of this, and latest news on what was going on.
Some of the new things they're doing
- New support staff, and more
- New servers from DC (Databank?) (which i'll be moved too ;])
- Less or No downtime at all; and total care support
- More support options
and the results are being seen, they immediately solved all my issues hopefully I won't run into them, but dear members who read this, as a owner; I've decided to go sole proprietorship and work sales, support, billing; all from my blackberry and cell phone around the clock, and downtime is the last thing I can have. Currently I have over 125 accounts and being one of the top free hosts, and clients new to the web = lots of questions. So uptime and reliability from a powerful host is needed. I thank BuyAVPS for making the turnarounds and though they've been only for 1 year, they're one of the rare hosts with the right price and great deals.
I must say, they're support team is fabulous and has been helping me out constantly, from installing scripts to great support and now they're offering more support options.
I've been with them for now 3-4 months, or maybe more I've signed up when they started; and they're coming a long way now and soon to be one of the best vps hosts.
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Aug 12, 2007
I am executive director of a non-profit organization. As part of our mission, we publish a monthly peer-reviewed academic journal. We receive from 70-100 submissions per month, each which must be reviewed by experts. I am interested in moving the entire peer-review process onto a secure website and need some advice. Here are our needs.
1. Run 10-20 independent peer-review sessions simultaneously.
2. Assign between 3-7 reviewers to individual discussion "rooms" for participation in the peer-review process. The editor must be able to monitor and manage the discussion process.
3. Upload a PDF version of a submitted article into a specific "room" for review.
4. Assign a unique user name that will allow each reviewer to remain anonymous during the review process.
5. Reviewers discuss the merit of the article in a blog format.
6. Close the review session down after one week (no more access). When the room is reopened for another article and new group of reviewers, it would have to be done so with new security settings (i.e. people participating in previous reviewers could no log on and access the same or other rooms at a later date).
7. Compile/summarize the discussion thread and send it to the author.
I was thinking that what we need is basically to set up individual blogs with security settings. However, there may be other better ways to go. I don't know. The most important thing is that the "discussion rooms" would be short-lived, would have a limited number of participants (3-7 plus editor), and a limited number of posts. Submitted articles are between 150-500KB and would be taken down off the site once the review session is closed.
I am having trouble determining what our needs will be for this project in terms of storage space, bandwidth, security requirements, etc. Although we want an attractive site, this will not be for public access. The most important design factors therefore are ease of use, functionality, and reliability.
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Jul 8, 2007
I'm getting myself a colocated server in August.
Its quite a 'powerful' one (Q6600, 2GB, 2x160GB). It will be running Windows Server 2003 Standard edition.
I would also like to make a test 2003 installation on the server itself and most likely a Linux Ubuntu) installation too.
Now VPS looks good, but I have some questions about it.
- Can I run 2003 (virtual in VPS) with the same SPLA license?
- Is it possible to give the power of one core of the CPU (since I got four) to a VPS? (so it doesn't stress other cores)
- For example, I host an application on port 5000 (random chosen ) on the non-VPS system, is it possible to host the same application in the VPS system on the same port with an other IP address assigned to it?
- Whats the best (free if possible, shouldn't have many options (just an on/off switch )) way to make a VPS in Windows?
- Is it a problem with servers of these days to push the 'maximum' (or like 80%) out of the network connection (a gigabits or 100MBits)? Are the server response response times (pings) acceptable for gaming when its under such a load?
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Aug 4, 2009
Let's say you ordered new server,do you make active same moment(install httpd server and all other components)or you running test before like memory and hardware test? If yes,which programs you would recommend to test fully hardware?
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Dec 8, 2008
I have a VPS with Linux and 128 MB RAM and the Control Panel is an Interworx one. Backups are made with SiteWorx (a panel within NodeWorx, and only visible one for Shared Host customers).
- The VPS is working properly the whole day;
- The content of my VPS (besides the necessary software) is a PHPBB 3.0.0 forum that is heavily visited. Its subject is World of Warcraft, a popular MMORPG;
- Making a backup is successful, and I am reported by the system that way by an e-mail which also reaches me;
- Shortly after that my VPS crashes and stays offline, until I can restart it or my webhost notices that it is offline. NodeWorx and SSH are inaccesible. As soon as I can access the SSH I can restart MySQL server and everything is working properly again.
I suspect that 128 MB RAM is too little for my VPS backups.
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Sep 13, 2008
I'm tying to assign nameservers to my new server in whm.
I am trying to do ns1.mydomain.com and ns2.mydomain.com. I would like to manually choose which IPs are given to each nameserver, but WHM is doing it automatically and selecting an internal IP for one.
I don't want this. How can I choose?
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Sep 23, 2008
I 'just ordered a dedi server; they rung me to confirm the order and told me my server would be ready in few hours, but later asked me send copies of my debit card and passport which I refused to do as i never did this before, especially, here, in the UK
Is this common in th US?
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Aug 8, 2007
I have a Ubuntu 6 LTS server, and so far i have installed and got working:
Apache, PHP5, SQL5
but now i come to EXIM, its installed, and i have installed Solid Pop3d as a pop server - it was in the repository, but now i dont know what to do.
The server exists as a subdomain of another, until its ready for me to move onto. There are no control panels, i wanted to do it all with SSH.
Does anyone know how to set it up so i can connect with a mail client, and how to setup accounts?
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Nov 12, 2007
how to make an intranet, but I am thinking of having a go at it on a network I have access to.
Currently there is one computer that everybody here calls the fileserver. Its My Documents folder is everybody else's Z: drive. (This is an XP machine).
What steps are involved in hosting web pages on it that all the other computers can access with a browser?
to be accessing the server like localhost on a standalone machine, rather than just Z:/file.htm because I intend to install PHP.
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May 28, 2014
I recently upgraded my Apache 2.2.22 installation on Win 8.1 to 2.4.9, making all necessary changes (I believe) to the conf files. I am puzzled that two files in the format authdigest_shm.xxxx now appear in my logs directory when the server is restarted. (Edit: there is also no httpd.pid file)I assume this is to do with running digest authentication, but is a new phenomenon since the upgrade.what conf file setting(s) have I screwed up?!
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Apr 12, 2014
I've spent the last several months working on a huge upgrade of a couple dozen websites. The upgrades include modifying Apache so that visitors who arrive at links pointing to mysite/World/New_York are redirected to mysite/world/new-york. In other words, all my links now default to lower case, and underscores are replaced with dashes.
Unfortunately, publishing it has been an endless series of disasters. My websites are now all crashed, and the server is unbelievably slow. It takes pages forever to load (if they load at all), and I can scarcely publish files online.So the following notice sent to me by my webhost got my attention.
IT appears your own server IP is making GET requests to Apache, causing excessive loading and causing service failures. On today's date, your IP made almost 6,000 connections to Apache:<br><br>
[root@host ~]# grep 64.91.229.106 /usr/local/apache/domlogs/mysite.org | wc -l 5924 [root@host ~]#<br><br>
These were all the same request:<br><br>
64.91.229.106 - - [12/Apr/2014:08:10:10 -0400] "GET /404.php HTTP/1.0" 200 14294 "-" "-"<br><br>
And that made up the total of requests:<br><br>
[root@host ~]# grep 64.91.229.106 /usr/local/apache/domlogs/mysite.org | grep "GET /404.php HTTP/1.0" | wc -l 5924 [root@host ~]#<br><br>
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Feb 15, 2007
Is it possible to make these two work together? I can't seem to find any way to let Apache read /home/<username>/public_html without disabling selinux entirely.
I know you can do "chcon -t httpd_sys_content_t -R $HOME/public_html", but it seems like it would be a pain when adding users, especially if someone decides to delete their public_html and make a new directory.
Is it possible to create an exception to let httpd do whatever it wants?
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May 19, 2015
Currently Plesk only has the ability to make a full backup of the data. Now, this is quite an issue since I have accounts on my server that are over 280GB. Making a full daily backup of that and allowing clients to have a history of 10 days, isn't viable.
Is there perhaps a way one can make differential backups?
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Feb 20, 2008
I have a cPanel server with 4GB RAM
My server hangs time to time, once or twice a day. This is the last status when it happens.
Server Load 75.90 (2 cpus)
Memory Used 92 %
Swap Used 65.78 %
When I was still inside SSH when it happens, the processes I can see inside "top" are a lot of httpd processes.
So I "killall -9 httpd", I had to do it 30~40 times
#killall -9 httpd
#killall -9 httpd
#killall -9 httpd
x 30~40 times until no pid process found & the server load is back to normal.
Before that, I check httpd fullstatus, they look very normal, same goes to what I see inside WHM Apache status & cpu usage status.
At first I thought it was a memory problem after consulting with a server admin, so I replaced all 4GB new ram stick (such a waste)
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Nov 14, 2014
This is my free -m
total used free shared buffers cached
Mem: 1998 1903 95 0 45 542
-/+ buffers/cache: 1315 683
Swap: 2662 36 2625
Not good ....
I got 5 wordpress and 5 statics website on this server and 100 visitors by 24H00 each day.
Question 1 : Why the memory is so low and the swap so high ?
Question 2 : Why i don't find high usage process in top command ?
Question 3 How can i resolve this problem ?
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Oct 31, 2009
My server is very slow, High CPU, High Apache load....
I got a new server and i had setup a script on it.
No server tweaks has been done.
I run a filehosting site so it gets very slow when traffic is high.
Here is some info:
Code:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4135 filedip 19 0 12812 8892 2212 R 18.9 0.4 0:00.74 index.cgi
3140 apache 15 0 22624 9604 2768 S 17.3 0.5 1:54.45 httpd
3556 apache 15 0 22792 9592 2768 S 17.3 0.5 0:43.53 httpd
3739 apache 15 0 22672 9556 2744 S 17.3 0.5 1:09.67 httpd
3884 apache 15 0 22664 9560 2744 S 17.3 0.5 0:23.98 httpd
3474 apache 15 0 22672 9572 2756 R 16.1 0.5 1:34.09 httpd
3548 apache 15 0 22792 9560 2740 S 16.1 0.5 1:33.67 httpd
3991 apache 15 0 22640 9588 2756 S 15.1 0.5 0:22.44 httpd
3475 apache 15 0 22672 9580 2756 S 13.2 0.5 1:31.42 httpd
3493 apache 15 0 22664 9592 2768 S 12.9 0.5 1:15.52 httpd
3769 apache 15 0 22664 9580 2756 S 12.9 0.5 0:45.19 httpd
3638 apache 15 0 22664 9576 2756 S 12.3 0.5 0:32.82 httpd
3724 apache 16 0 22664 9580 2756 R 12.3 0.5 0:34.25 httpd
3626 apache 15 0 22672 9580 2756 S 11.7 0.5 0:52.54 httpd
4023 apache 16 0 22792 9560 2740 R 11.3 0.5 0:13.16 httpd
3882 apache 15 0 22664 9576 2756 S 10.1 0.5 0:38.56 httpd
3005 apache 15 0 22672 9588 2768 R 9.1 0.5 2:06.61 httpd
I dont know much about server managment...
how to fix this so server doesnt go slow?
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Jul 2, 2009
I have a site that is eating up my server resources and need to know what the best solution for this is. I'm thinking of getting another server just for mysql but do not know what specs the server should be to handle the current traffic/database load and have the site run smoothly without slowing down to a snail's pace.
An alternative is to get another server just for the videos being served and leave the database and html on the current server. This is where I'm stuck and don't know what route to take with this.
My current server stats:
Dual Xeon 5130
4GB RAM
250GB
50 Mbit/sec
CentOS 3.9
Website traffic stats:
15,000 visitors/day
150,000 pageviews/day
Serving videos
I've attached screenshots of top and bandwidth usage per day. Hopefully with this information you could tell me if I need another server or if there are any things I can do to the current server to help things move faster.
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