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• Partitioning of Ubuntu server which will use OpenVZ and encrypted partitions (unlocked through SSH l

  - by DeletedAccount

  Hi, I'm about to install a server. Some context: My HDD is 1 TB and I have 2 GB RAM Ubuntu Server Lucid Lynx AMD 64 I will use OpenVZ and have most functionality separated into containers. To support disk quotas I need to use ext3 (not ext4) for the container partition. Each time I reboot the server I want to be forced to login through SSH and mount the encrypted partitions by typing my password (if someone steals the server, no critical data should be available). I want to have as much as possible encrypted. Yet I want to be able to login through SSH as I don't have a monitor or keyboard at the server. I am not sure how big I need my partitions to be. Being able to resize them later would be nice. I guess it implies using LVM? But the manual partition mount using SSH is also very important (in fact it's more important, if I have to pick one). How do you recommend that I partition the HDD? If I have daemons which needs the encrypted partitions, will they fail and can I just restart them after mounting the needed partitions?

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• How to improve network performance between two Win 2008 KMV guest having virtio driver already?

  - by taazaa

  I have two physical servers with Ubuntu 10.04 server on them. They are connected with a 1Gbps card over a gigabit switch. Each of these host servers has one Win 2008 guest VM. Both VMs are well provisioned (4 cores, 12GB RAM), RAW disks. My asp.net/sql server applications are running much slower compared to very similar physical setups. Both machines are setup to use virtio for disk and network. I used iperf to check network performance and I get: Physical host 1 ----- Physical Host 2: 957 Mbits/sec Physical host 1 ----- Win 08 Guest 1: 557 Mbits/sec Win 08 Guest 1 ----- Phy host 1: 182 Mbits/sec Win 08 Guest 1 ----- Win 08 Guest 2: 111 Mbits /sec My app is running on Win08 Guest 1 and Guest 2 (web and db). There is a huge drop in network throughput (almost 90%) between the two guest. Further the throughput does not seem to be symmetric between host and guest as well. The CPU utilization on the guests and hosts is less than 2% right now (we are just testing right now). Apart from this, there have been random slow downs in the network to as low as 1 Mbits/sec making the whole application unusable. Any help to trouble shoot this would be appreciated.

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• 5 year old server upgrade

  - by rizzo0917

  I am looking to upgrade a server for a web app. Currently the application is running very sluggish. We've made some adjustments to mysql (that's another issue in itself) and made some adjustments so that heaviest quires get run on a copy of the database on another server was have as a backup, however this will not last that much longer and we are looking to upgrade. Currently the servers CPUs are (4) Intel(R) XEON(TM) CPU 2.00GHz, with 1 gig of ram. The database is 442.5 MiB, with about 1,743,808 records. There are two parts of the program, the one, side a, inserts and updates most of the data. Side b, reads the data and does some minor updates. Currently our biggest day for side a are 800 users (of 40,000 users all year) imputing the system. And our Side b is currently unknown, however we have a total of 1000 clients. The system is most likely going to cap out at 5000 side b clients, with about a year 300,000 side a users. The current database is 5 years old, so we can most likely expect the database to grow pretty rapidly, possibly double each year (which we can most likely archive older records if it comes to that). So with that being said, should we get a server for each side of the app, side a being the master, side b being the slave, any updates made on side b are router to side a. So the question is should i get 2 of these or 1. 2 x Intel Nehalem Xeon E5520 2.26Ghz (8 Cores) 12GB DDRIII Memory 500GB SATAII HDD 100Mbps Port Speed And Naturally I would need to have a redundant backup so it could potentially be 4 of them.

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• Apache 2 settings for high traffic website

  - by Harry

  I'm having problems with the load on my website. It's an amazon ec2 server with 15Gb ram and 4 CPUs behind an LB. apachetop says I'm getting around 80 reqs per second which seems really low for this kind of server and the load ( given by top ) is usually around 15 but does increase to about 150 in 24 hrs. I'm seeing about 100 active apache processes at any time. Apache is in prefork mode. Mysql is used very little on the server and there are almost no static files. Here are my Apache settings: Timeout 20 KeepAlive Off MaxKeepAliveRequests 0 KeepAliveTimeout 3 <IfModule mpm_prefork_module> StartServers 40 MinSpareServers 25 MaxSpareServers 40 ServerLimit 400 MaxClients 400 MaxRequestsPerChild 4 </IfModule> Can anyone advise on how to tweak the settings? Thanx! Edit: The config was gotten by trial and error. Any and I mean by a number, change to these lines make the load skyrocket in like 5 minutes. It literally jumps to like 200-300 in a matter of minutes. Especially MaxRequestsPerChild. I've tried with 10, 15, 100, 1000 and the load just skyrockets. About php - there are actually only a few php files which aren't really that expensive at all. They just spit some simple stuff out. If I turn on KeepAlive load also goes to space..

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• Oracle: 1 Large Server vs. 2 Smaller Servers?

  - by nvahalik

  We are in the planning stages of setting up our production Oracle 10gR2 environment. Our budget gives us the ability to buy 2 processor licenses of Oracle DB Standard Edition. We have minimal experience with Oracle so I'll defer to anyone who has used it. We are trying to decide if we should set up a single dual quad-core box or 2 individual quad-core boxes in a RAC configuration. Our DB right now is about 60 GB, and at our peak, we'll have up to 150 concurrent users. Most of the big stuff is done via batch processing at night. My gut tells me that having 2 boxes in a RAC configuration can't be a bad thing because it provides a true hardware failover solution. DB stored in a shared LUN on a SAN via iSCSI. Plus if we ever need to add capacity, we already have boxes in place that can be upgraded with extra procs (I assume with zero downtime, since it's set up in a RAC config) if we add extra licenses, or RAM. Does RAC have any performance penalties? Will it add extra latency? Is there any true advantage for having dual processor boxes running these systems? If we build out the Oracle boxes with special hardware: hardware iSCSI cards, TOE NICs, will these boxes be solid? We are deploying on 64-bit Windows. So what would you do? One box or two?

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• how can a web page change my mouse speed?

  - by Tekaholic

  I usually have many tabs open in Firefox and I haven't been able to find one specific website that causes this because I don't seem to notice it right away. I'm going to click on something on my desktop and I am lifting up the mouse several times to get across the screen. It doesn't seem to matter what program I might be using because this happens on all desktops and in Firefox, too. So I go in my settings and I turn up the mouse speed all the way and it's still not really acceptable. It doesn't matter if I click on different tabs but when I close the browser, my mouse is way too sensitive, like I'd expect at the max setting. Then I go back to Control Center and return my mouse speed and acceleration to normal. When I restart my browser, the mouse remains normal. So is there something to this before I start wasting my time hunting through my history to discover which website or sites are having this effect? ...and if it is a specific site and I locate it, what can I change to stop it's effect on my mouse besides not visiting it? I am using Linux Mint 13 on a box with an AMD Athlon processor and 2gigs of ram. I never installed another browser because everything works for me.

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• Exchange 2013 really slow outside of localhost

  - by ItsJustJP

  We've got a 12 core xeon, 24GB of ram 2012 server. We've recently migrated from exchange 2010 (which was on another server) to exchange 2013 which resides on our new 12 core server. Accessing the OWA on the exchange server is fine; it's very quick and responsive however accessing it via any other computer connect to the domain via a 1 gpbs connection and it'll take 10-15 seconds to load. Also running slow is public calenders that people in my place need to access, again taking 10-15 seconds to access and can sometimes cause outlook to not respond. Further to that we have phones that connect via the internet (of course) to the exchange so people can get work emails when they are out of the office. Guess what, this is also running slow. I've have search for many solutions and have tried changing outlook authentication methods but there is no change in speed. The old exchange 2010 server no longer exists but there was no problem before the migration. Has anyone got any suggestions? Thanks :) Must also mention that server 2012 that exchange 2013 is installed on is also the DC. Update: It would appear that any connection via https is slow. It took more than 15 mins for an outlook client to download 50MB of emails (outlook anywhere).

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• Linux Has Become Very Slow Dealing With Large Data

  - by Kohjah Breese

  Last year I bought a computer, for around $1,800, so it is relatively high-end. When I first got it I was particularly pleased at how quick it dealt with large MySQL queries, imports and exports. But somewhere along the way something has gone wrong and I am not sure how to diagnose the problem. Any job that involves processing large amounts of data, e.g. gzipping file c. 1GB+, UPDATEs on large MySQL tables etc. have become very slow. I just performed an intensive alter statement on a 240,000,000 row table on a remote server, which is lower spec. This took about 10 minutes. However, performing the same query on a 167,000,000 row table on my computer went fine until it hit 860MB. Now it is only writing about 1MB every 15 seconds. Does anyone have any advice as to debugging what the issue is? I am using LinuxMint (based on Ubuntu 12.04.) The home partition is encrypted, which really slows down gzip. I have noticed the swap is barely used, but am not sure if that is because there is more than enough RAM. The filesystem is ext4. The MySQL server is on a separate hard drive, but it was fine when I first installed it. Other than the above issues, there are no other problems with it. I am going to install a fresh Ubuntu on the 4th hard drive to see if that is any different.

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• AMD processors witn graphics card bundled [closed]

  - by shybovycha

  Sorry for posting this question here - just don't know to which StackExchange website i should be writing. I've heard AMD created processors with video card bundled. So now these processors should work as fast as just usual processors with discrete video card but AMD's ones should use less power and spread less warm. Some googling around gave me the result like "AMD processors of A-series". They were mentioned to be build using that technology i described above. But on the other hand, we have a small rate of publishing and not-very-good quality of AMD drivers. I am a game-developer and web-developer so i need a powerful processor and graphics card and a lot of RAM on board (to make it possible to create a sample Grails application, for example or to create some 3D models in Maya/Cinema4D, for instance). Still i want my battery to be a long-living one, so power usage is a bit critical for me. So, my questions are: are there any processor building technology like i've described and which series they are (if they exist)? which processor shall fit the laptop the best: AMD one or i5/i7 on with nVidia graphics card for the purposes mentioned above?

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• Linux that restores itself on each reboot

  - by jettero

  I'm looking for methods and software to help create a variant of lubuntu that will restore itself to an install state and/or update on every boot. I'm thinking of doing things like putting the root filesystem on a squashfs and using unionfs and tmpfs to make root writable, but automagically restorable. I'm thinking of updating the squashfs with rsync. Perhaps there are other ways to approach the problem. Perhaps root needn't be writable at all. All thoughts welcome. The home dir would be writable in the usual way. The goal, if it matters, is a Linux that's simple to maintain from the home office, but that functions correctly for customers. We have some custom software that we wish for customers to be able to run trivially on equipment we provide. Ideally these devices would have a "restore to factory" function that would put it back the way we intended. If this is part of the normal boot cycle, so much the better. Why lubuntu? Personal preference for this application. It has a usable desktop, but doesn't take up much ram.

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• Server specification recommendation

  - by foo

  To cut the story short, I can't buy an item (server/cpu/motherboard/ram) that costs more than USD 330. However, I can combine them, meaning, I can buy a CPU that costs USD 330 and motherboard that costs USD 330. With this limitation, I can't buy a powerful 1U server which will definitely costs me more USD 330. With that in mind, I was hoping to build a powerful desktop PC which will be used as a database server. However, through my experience, desktop PC doesn't last very long, usually the motherboard will just die by itself after 1 or 2 years. So, what would you guys recommend me to buy with this kind of budget? Every item must be <= USD 330. Will be used as a MySQL server. RAID would be nice. 1TB is pretty big for my data. I do not need external graphic card (onboard would do just fine), mouse, keyboard, monitor. Linux friendly. One ethernet port is good enough. It's important that those hardware is made of components that will last long (at least 3 years or something). The server will be placed in an air conditioned room, but a good ventilation for the server is always preferred. I won't overclock it. Intel processor is preferred. Thanks in advance.

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• computer randomly restarting. both in game and out of game

  - by eric

  first my specs are. AMD Phenom II x4 955 processor 3.2ghz 20gb ddr3 ram 4Gb Nvidia Geforce GTX 770 850w Corsair tx850w psu Gigabyte ud3 mobo Windows 7 professional I recently uprgraded my vid card to gtx770 and upgraded my psu to the 850w thats in it now. i did a reformat with the installation of the new gpu and psu and started fresh and only have a couple programs installed (diablo3, nvidia control panel, wow, and steam). all drivers are up to date and everything is hooked up correctly. the problem is it will randomly shut down. no blue screen. just turns itself straight off and reboots after a couple seconds. occasionally i will have to unplug the power cable from the psu for a few minutes then reconnect and it will start up. it seems pretty random. sometimes it does it when my pc is just sitting there on the home screen. and sometimes it does it during games. and sometimes it doesnt do it for days at a time. i noticed the psu felt hot so i put an extra fan blowing straight onto both the psu and gpu and neither feel overly hot after it shuts down now. could it just be that it is a psu problem. the psu was taken from another machine but wasnt having this problem in that machine. i have seen a few articles online about gtx770 doing the same thing. but i havent found any answers or solutions. any help will be appreciated. im sure the 850w is enough to power my machine, im just stumped and ran out of ideas to fix it. i have even returned the video card for another thinking it might have been an issue with that particular card, but still gettin the same problem.

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• Windows 7 Icons, Buttons, and Tabs corrupted...Professional 32-bit

  - by xhyperx

  The other day, about two or three ago, I was simply typing in a Microsoft Word document when my screen froze. After a few moments, it went black...I thought it was my vid hardware (dual nVidia 9800 GTs). Anyway, I did a hard reboot, and chose to Start Normally. The system blue screened telling me there was a failure in the Memory Manager. So then I thought maybe a RAM failure or vid memory failure. I attempted reboot again, this time I got presented with the option to repair windows...so I went with that. The repair app finished and did an auto reboot. This time I got all the way back to my desktop where in a matter of a about 30 seconds, the system blue screened again and pointed to the Memory Manager as the area of cause. Again I rebooted, the repair thingy came up again and I allowed it to do its thing. Deciding if the same failure occured I'd begin pulling hardware to see at what point I may have found the possibly defective party. However, this time it rebooted, I got back to desktop and no crash. All looked well, untill I looked at the baloon messages when hovering over the System Bar icons. Also when I opened any of my browsers, the tabs had no text, and any window that pops up that has regular buttons (OK, Cancel, etc., etc.) looks weird. The buttons are really really long and have no text. So it seems like the system is once again running smoothly, however something has gotten corrupted.. something relating to drawing basic windows user interface objects. Help...all ideas are respected and appreciated. Have a great day everyone!

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• Windows 7 Icons, Buttons, and Tabs corrupted...Professional 32-bit

  - by xhyperx

  The other day, about two or three ago, I was simply typing in a Microsoft Word document when my screen froze. After a few moments, it went black...I thought it was my vid hardware (dual nVidia 9800 GTs). Anyway, I did a hard reboot, and chose to Start Normally. The system blue screened telling me there was a failure in the Memory Manager. So then I thought maybe a RAM failure or vid memory failure. I attempted reboot again, this time I got presented with the option to repair windows...so I went with that. The repair app finished and did an auto reboot. This time I got all the way back to my desktop where in a matter of a about 30 seconds, the system blue screened again and pointed to the Memory Manager as the area of cause. Again I rebooted, the repair thingy came up again and I allowed it to do its thing. Deciding if the same failure occured I'd begin pulling hardware to see at what point I may have found the possibly defective party. However, this time it rebooted, I got back to desktop and no crash. All looked well, untill I looked at the baloon messages when hovering over the System Bar icons. Also when I opened any of my browsers, the tabs had no text, and any window that pops up that has regular buttons (OK, Cancel, etc., etc.) looks weird. The buttons are really really long and have no text. So it seems like the system is once again running smoothly, however something has gotten corrupted.. something relating to drawing basic windows user interface objects. Help...all ideas are respected and appreciated. Have a great day everyone!

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• Nvidia 9800GT randomly prevents computer from booting

  - by Blender

  My computer has been running Windows and Linux perfectly fine with my 9800GT for the past year or so, but today it refused to boot. When I press the power button, this is what happens: Power button flashes once. Fans whir. Graphics card makes clicking noise. Computer reboots. Go back to 1. The cycle just keeps going, and I have to yank the cord to make the computer stop. After about 30 attempts at booting it, the computer powers on and everything works. I'm pretty sure that the graphics card isn't malfunctioning, as I've been GPU computing on it for a while now without any hiccups. But the strange thing is, the computer boots perfectly fine in only 5 boots if I remove the card. The computer is a HP Pavilion a6028x Desktop PC: Processor: AMD Athlon 64 X2 (W) 4600+ 2.4 GHz (AM2 socket) Motherboard: ECS MCP61PM-HM (Nettle 1) RAM: 3GB DDR2 (two different brands) More specs here Does anybody know what could be the problem? Any help or information would be greatly appreciated!

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• 20 1TB drives vs. 10 2TB drives in RAID5/6 server

  - by Hunter

  Hi everyone, I will be setting up a server at work and I need some advice on some details. The setup will be one blade-type server (8-core, 16GB RAM) with two subsystems - one for the main storage the other to back it up. I'm shooting for a 20TB array (I know it'll be less after formatting and parity drives). So is there any advantage one way or the other with either 20 1TB drives or 10 2TB drives? I'm not sure right now how many controllers I should have either (in the quote I have is a dual-port controller). I would think two controllers for a server of this size would be a better choice than the dual-port controller (but I really don't know). And would an array of this size have any performance issues in RAID 5 or 6 (I know RAID 5 or 6 are "slower" because of all the parity calculations). Also, these will be either WD RE3 (1TB) or the RE4 (2TB). Oh, also, for the backup array would it be ok to use the WD 2TB green drives (also in RAID5 or 6)?

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• Y560 Lenovo IdeaPad bandwidth issue

  - by Vlakarados

  I have a Y560 Lenovo IdeaPad, my config: i7 740QM, 4GB RAM, RADEON HD 6570m/5700 1024MB and my network adapter is Intel WIFI Link 5150. The laptop is 2 years old and the problem I'm about to describe is present from the first day. As may be seen here, the receive bandwidth should be up to 300 Mbps, but the maximum download speed from LAN and using torrents is about 2.4MB/s. My internet connection is 100Mbps and other laptops in my house have the appropriate download speed - up to 12MB/s, I have tested at my friends house and at my job, the speed remains the same. I have tried all possible configurations I could think of in network settings - nothing helps. I use Windows 7 and I have had installed different versions (Ultimate, Professional, Home, OEM Home, 64 and 32 bit versions). Some time ago I searched for the problem and found one or two threads that had the same problem and there were something said about a limitation in firmware that some experienced users have managed to bypass. Updating drivers didn't help me either. Is there any reliable way to fix this?

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• Why would my network slow down?

  - by monkthemighty

  The network at my work has about 40 computers on it and a quite a few printers. When there are a lot of people working the network will be slow. I can test the ping between my computer and the router and it will keep rising, sometimes to the point that it times out. The router we are using is running Ubuntu on a atom processor and it has 4gb of ram. When the network slows the process Ksoftirq will be using most if not all of the processing power. I have found that Ksoftirq is a process that handles irq requests. Also when the network slows down I have captured packets from the router and using tshark and looked at it using wireshark on my laptop. With the capture show a lot of packets with TCP Dup ACK and TCP Retransmissions. The destinations of the TCP Dup and TCP retransmissions are to most of the computers on the network but there are some that are far more than others. What could this problem be caused by?

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• [SOLVED} How do I restore my audio after uninstalling Ventrilo?

  - by Marcx

  Hi, I've a Dell studio 1555 bought on september with Windows 7 64bit Professional on it. The audio device works proprerly, while listening to audio contents (from disk or internet) When I use Ventrilo, the audio from other people sounds good and I hear their voices clearly When I use any other VOIP programs like Teamspeak 3, MSN or Skype, I hear a disturbed voice, and it's impossible to comprehend something... Anyway everything worked fine until I installed Ventrilo, but removing it didn´t solve my problem. Update: Here's a sample of how I hear others people voices.. Audio Sample After some tests, also the desktop has the same problem. (I tried TeamSpeak3) Here are some details on my laptop and desktop Laptop Dell Studio 1555 Core 2 Duo P8600 2.4Ghz 4Gb Ram Dual Channel Ati HD 4570 512Mb dedicated (up to 2048) IDT High Definition Audio Desktop Motherboard Asus P5KPL-AM Dual Core CPU E5200 2.50Ghz 2x2GB PC6400 Dual Channel Ati Radeon HD 4650 512MB VIA High Definition Audio Both computers have Windows 7 Professional 64Bit. So how do I restore my audio? SOLVED The problem was in router firmware, there was a bug that recognized VoIP traffic as a DOS attack and the router grambled every packet... I've installed the newest firmware and everything is fine :)

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• Things to consider when building a continuous integration server?

  - by Dave

  I'm new to continuous integration, but immediately realize its value, and I want to get one set up right away. I have played with TeamCity and have it working in a VM great. Now, I don't want to spend money on another system, so I was planning on just doing the VM again on a faster machine (i.e. my dev system). There are a few questions that come to mind with this: Hard disk allocation - how big should it be? Sure, 60GB seems like more than enough, but people also used to think that we'd never need more than 64KB of RAM Backups - is it even important to back up the integration server? Sure, I guess it's nice so that one doesn't have to go through the entire configuration process again, but I would think that's about it. I could snapshot my VM every time I do a configuration change, and then do a backup of applications only (ignore the buildAgent stuff). Migration - if I want to go away from a VM on my dev system, to a new server, which maybe even runs Windows Server 2003, is it easy enough? Perhaps this is a particular point best suited for StackOverflow.

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• windows server 2003 speed issues

  - by farzinSH

  I have a HP server with windows server 2003 and 50 windows XP clients. Since a week and a half the networks speed suddenly drop 2-3 times per day. It gets so slow that none of the clients could work with the HIS program installed on them. We tried so many different things such as replacing the hubs,switches and even some wires. Every time one of these changes solves the problem and the network goes back to its normal state. I checked everything. Even when I disconnected all the clients from the server and connected it to just one computer the problem still remained for 2 hours. I just narrowed down the problem to the couple of likely speculations as follows: viruses? (Updated Kaspersky running on the server shows none) server hardware failure? Physical memory usage on the server? (Because the last time the problem occurred none of the changes above solved the issue so I restarted the server an checked the physical memory usage which was 2 GBs. But I noticed it's increasing over time to over 9 GBs...the server has 16 GBs of RAM.) I surfed the internet and got nothing. Any help would do us a lot....thanks in advance

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• Difference between "bit-number" in filesystem and that in OS (like 32,64 bit)?

  - by learner

  I encountered 2 terms ,"FAT32", a file system and "Windows Vista 32 bit". I found that the meaning of a 32 bit OS is that that the OS deals with data in chunks of minimum size 32 bits. I don't quite understand the depth of that, but I figure ,every file in that system with that OS should have a minimum size of 32 bits. I also read that these 32 bits are used to hold data of files' location(reference) and details. Which of it is it? I have also read that 4 GB of RAM is all that is needed at the most if you're on a 32 bit OS. But I don't understand why. If there are 32 bits to hold info about files and their locations,there can be 2^32 possible combinations of it. But I have found in many places,2^32 is divided by 1024 thrice to get 4GB. Why? Did that 2^32 become equal to 2^32 bytes? And about filesystems I read a similar explanation for what 32 means in FAT32. It is supposed to mean that 32 bits are used to number file system block. Now how is different from the number before the OS?

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• Running Windows 7 physical disk virtualized under Linux

  - by CajunLuke

  I have an existing Windows 7 installation that I'd like to virtualize under Linux. Windows boots fine on Disk A, Linux boots fine on Disk B. (Both disks are SATA.) I can mount the Windows disk when in Linux. I've tried VirtualBox and VMWare Player and neither will allow me to boot from the other disk. VirtualBox doesn't seem to have the option to do so. VMWare Player has the option to have an IDE drive exposed to the virtual environment as a SCSI disk. I've tried that, but it throws the error "Cannot connect virtual device ide1:0 because no corresponding device is available on the host." I've verified that it's pointing to the correct hard drive. I'm willing to try other virtualization products, and I'm not averse to spending a little money to get this to work. I've seen this other question, and it's not a duplicate, as I haven't gotten that far yet. I'm also interested in solutions going the other way (Linux on Windows), but that'd be lagniappe. Gory Hardware Details: Lenovo T410, 2.4 GHz Core i5 (has virtualization extensions), 4GiB RAM, 2x 320 GiB SATA HDD, one in optical bay. Fedora 14 2.6.35.10-74.fc14.x86_64, Windows 7 32-bit.

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• Nginx and 1000 WordPress Installs - Optimization

  - by GTE

  Hey, I'm trying to create a rather unusual (imo) configuration where I have: nginx php-fastcgi mysql 1000 seperate WordPress installs (with WP Super Cache). Each WP install corresponds to a seperate subdomain. Furthermore, I have 1000 cron jobs being called every hour that in turn call a WP plugin (using wget) which retrieves data from an API and posts it to the respective blog. This is all being run on a virtual server with 1024MB of RAM, 4 shared processors, etc. The server is not doing well, especially during the times that the cron jobs are being executed. Nginx constantly throws 504 errors and the site has a significant lag. 1) Am I crazy for having 1000 individual WP installs? Should I be using WP-MU and will this help significantly? (I have certain plugin restrictions that I prefer having seperate installs but could switch if need be.) 2) Instead of having 1000 unique cron jobs - should be calling say a bash script that will then process the 1000 HTTP requests I need? Could this be done in a succesive order instead of a sequential one? 3) Any other kind of suggestion you may have for optimization? Should I be proxying to Apache instead of just using nginx, etc. Any kind of advice would be appreciated. Thanks in advance

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• Building a small server farm

  - by RayQuang

  Hi, I am planning to set up a Tech startup company that will provide web application solutions. Eventually we hope to diversify into different areas such as possibly social media or other services. For now we plan on running a high demand (from 1000 to 10,000 users in the first year) website running the application. This includes a MySQL database backend, email, and development servers. My question is then, what type of server arrangement will work best, that is ti say should i have a small cluster of ultra high power machines (E.G. Top of the range Xeons, with 12GB RAM) or will it be better to have more less powerful servers load balanced? Should I go for 1 - 2 u servers rack mounted ot would it be beter for it just to be tower servers for maintainability? Finally I would also like to know what kind of Internet and router i would need, I currently have 10mbit down and barely 1 mbit up, but soon our area will have a fiber optic connection with international speeds of up to 25 mbit / sec. Thanks in advance, RayQuang UPDATE: sorry I forgot to mention it, the platform that I will be using is PHP with the APC code cache, Probably running Debian.

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