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  • VMWare Server - Writing files to virtual hard drive performance

    - by Ardman
    We have just moved our infrastructure from physical servers to virtual machines. Everything is running great and we are happy with the result of the move. We have identified one problem, and that is reading/writing performance. We have an application that compiles files and writes to disk. This is considerably slower on the new virtual machines compared to the physical machines. Is there a performance bottleneck when writing to a virtual hard drive compared to a physical hard drive?

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  • Unable to create new virtual hosts using MAMP with OSX Mavericks

    - by user2961676
    I have been using virtual hosts on my Mac with MAMP, which has worked up until now. I have 2 working virtual hosts that i created in the same manner, which still work, but for some reason I am unable to create any new virtual hosts. When i attempt to go to a newly crated virtual host in my browser it generates a 404 Not Found error. The only thing i can think of possibly after i updated OSX to Mavericks, but i'm not sure what that would have done, or why the old virtual hosts still work. See excerpt below from vhosts.conf file. So, franklin.dev works, jamiepjones.dev works, but sheilahixson.dev does not. <VirtualHost *:80> DocumentRoot "/Users/jamiejones/Sites/franklin" ServerName franklin.dev ErrorLog "logs/franlkin.dev-error_log" CustomLog "logs/franklin.dev-access_log" common </VirtualHost> <VirtualHost *:80> DocumentRoot "/Users/jamiejones/Sites/jamiepjones-wp" ServerName jamiepjones.dev ErrorLog "logs/jamiepjones.dev-error_log" CustomLog "logs/jamiepjones.dev-access_log" common </VirtualHost> <VirtualHost *:80> DocumentRoot "/Users/jamiejones/Sites/sheilahixson” ServerName sheilahixson.dev ServerAlias www.sheilahixson.dev ErrorLog "logs/sheilahixson.dev-error_log" CustomLog "logs/sheilahixson.dev-access_log" common </VirtualHost> and hosts file: 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost 127.0.0.1 jamies-MacBook-Pro.Belkin # MAMP PRO - Do NOT remove this entry! 127.0.0.1 hixson # MAMP PRO - Do NOT remove this entry! 127.0.0.1 franklin.dev 127.0.0.1 jamiepjones.dev 127.0.0.1 sheilahixson.dev Please help!

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  • IIS7 - Virtual Directories' Parent Paths behaving differently than previous versions

    - by MisterZimbu
    I'm doing a migration of a web server running on IIS 5 to IIS 7. I'm noticing that the virtual directories are behaving differently between the two. I have a site located at c:\inetpub\SiteName. This site contains a virtual directory "bob" that points at c:\virtualdirs\bob. There's a script in the bob folder (script.asp) that contains just: <!--#include virtual="../index.asp"--> I'm noticing different behaviors between IIS5 and IIS7 when I attempt to run the script by going to http://SiteName/bob/script.asp: IIS5 references the parent path of the site, and imports c:\inetpub\SiteName\index.asp. IIS7 references the parent folder of the virtual directory, and looks for a c:\virtualdirs\index.asp (that doesn't exist). Doing a Response.Write of a Server.MapPath confirms this. Is there a way to get IIS7 to behave like IIS5 in this regard? Unfortunately, moving index.asp and its logic into the virtualdirs folder isn't an option as the virtual directory will be shared across many sites (with differing index.asps). Thanks.

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  • VMWare - Writing files to virtual hard drive performance

    - by Ardman
    We have just moved our infrastructure from physical servers to virtual machines. Everything is running great and we are happy with the result of the move. We have identified one problem, and that is reading/writing performance. We have an application that compiles files and writes to disk. This is considerably slower on the new virtual machines compared to the physical machines. Is there a performance bottleneck when writing to a virtual hard drive compared to a physical hard drive?

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  • Is /dev in linux virtual?

    - by user973917
    Today at work a client had rm -rf /dev and ended up deleting two files in /dev/shm that forced his site to no longer work. From what I learned previously /dev is not virtual, but a fellow technician had suggested to reboot the server because /dev is virtual like /proc. Sure enough I rebooted the server and the files that the client rm -rf'd were there. So, my question is; is /dev virtual? Is it the kind of virtual like /proc? Is there more documentation on this? How can I restore the /dev files without a server reboot?

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  • Amazon EC2 and Named Virtual Hosts

    - by user71718
    I am running ubuntu apache2 on an Amazon EC2 instance running behind an Amazon ELB (load balancer) I am trying to get multiple domain running pointing to different virtual hosts. The problem is I cannot get virtual hosts working with name - I can only get it working with I am trying to get www.domain1.com and www.domain2.com working When I setup my virtual hosts to it doesnt work Any ideas please??

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  • Hamachi network problem in virtual machine

    - by Ngu Soon Hui
    Hello, I have two virtual instances of Windows XP, and they are members of my Hamachi network. The problem is that the virtual machines seem to have a connectivity problem. The connection is intermittent, at best. Is there any known issues of hamachi, with Virtual Machine running on Windows XP?

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  • Page pool memory

    - by legiwei
    I'm currently using Windows XP SP3 32 bit, using C2D E6320 with 2GB RAM. When I am playing Starcraft 2, I encounter an error where it says my system is running low on page pool memory. Starcraft graphic settings suggested a high settings for me. I do not think it has to do with my GC but with my RAM. I then made a search to try to rectify the problem. Apparently, it's something to do with my virtual memory. I then proceed to try to the suggested solution which is to temper the registry and limit the page pool memory to 384MB. However, having done so, I still could not achieved it. I've seen screenshot settings of windows XP with 2GB having 384MB of page pool memory. My default settings puts it at 195MB whereas when I try to increase the pool limit, it can only go to a max of 229MB. I tried increasing my RAM capacity to 3GB but the pool limit still remains. I like to know how to increase my page pool memory. I've tried searching for solution but to no avail other than the one that I've mentioned above (which didn't solve my problem completely).

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  • Help with memory usage issues on VPS

    - by Niall Collins
    Hi there, I am running a VPS server with 6 .net web sites/applications running on it. I am having issues with performance on the server, mainly it running out of memory. I contacted the company that lease the server to me and they told me it was because I also had sql server 2008 express also running on the server. So I went ahead and removed this, uninstalled etc. However I still seem to be having issues. For example at present, looking at resource consumption, the virtual memory is: ID: vprvmem Current Use: 894,328,832 bytes Limit: 1,073,741,824 bytes This means useage of ~80%. Is there any way I can check out exactly that applications, web sites, software is taking up most of the servers memory, so I can look at rectifying it. I feel that 80% is much to high to allow for contingency for a spike in traffic. I have got extra memory resources added to the box recently, but I would prefer finding the source of the problem rather than throwing extra memory at it. Maybe these levels are correct and alls running ok, but would like to investigate it to make sure. My knowledge of hardware is limited as I mostly deal in the spectrum of software. So any tools out there that can help me or any pertient advice.

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  • Remote logging for multiple Apache virtual hosts using syslog-ng

    - by James
    I'm running a couple Apache web servers that each have 4-8 separate virtual hosts on each of them. I'm trying to setup a dedicated log server that stores each virtual host access and errors logs in a separate directory for that virtual host. For example on the logging server, /var/log/remove/10.0.0.2/virtualhost1 contains access_log and error_log /var/log/remove/10.0.0.2/virtualhost2 contains access_log and error_log /var/log/remove/10.0.0.3/virtualhost3 contains access_log and error_log and so on... Right now I have it split up by host but I can't figure out how to do it additionally by virtual host. Here are the relevant lines from the logging server's syslog-ng.conf source r_src { tcp(ip("0.0.0.0") port(5140)); }; destination r_all { file("/opt/splunk/logs/$HOST"); }; log { source(r_src); destination(r_all); }; Any help would be appreciated. Thanks!

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  • Broken filesystem on Windows XP / 7 virtual machine

    - by Pekka
    I created a virtual machine with Windows XP as the guest system in Microsoft's Virtual PC that ships along with Windows 7. I then installed Virtualbox and began running the MS machine in it. It worked fine. Then, I accidentally started the machine in Microsoft's Virtual PC again. The screen stayed blank, so after a while, realizing my mistake, I closed the Machine. Since then, the VM won't start any more, claiming massive file system problems. Starting Windows in normal mode results in a SOMETHING_FILESYSTEM blue screen; I can start in protected mode and run a checkdisk. That will fix something on every run, but every time I restart, it will start again. I tried re-booting the VM with the Windows CD and doing a repair install. I didn't watch whether that worked out, but I'm caught in the reset / check disk / reset cycle again. Is there anything VM specific that can still be done? On a physical machine, I would say reformat. Is there any way to get hold of the data on the virtual machine through either Virtual PC or Virtualbox? It was an experimental machine, but I had started entering some data on it that would be nice to recover.

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  • Backup software for Windows Server 2008 R2 Enterprise with 4 virtual machines (Exchange, SQL, AD, SharePoint)

    - by MadBoy
    What are the options for backup software for: HOST - Windows Server 2008 R2 Enterprise with HyperV VIRTUAL - Windows Server 2008 R2 Enterprise with Exchange 2010 VIRTUAL - Windows Server 2008 R2 Enterprise with SQL Express / SharePoint VIRTUAL - Windows Server 2008 R2 Enterprise with Terminal Services (10 users working on it) VIRTUAL - Windows Server 2008 R2 Enterprise with AD/DNS What I'm looking at is possibility of having an offsite backup thru FTP, maybe copy to usb/esata/lan drives for easy taking backup data outside of company. What I've been looking at: - Symantec Exec Backup 2010 System Recovery has an offsite backup but I would need 5 licenses and it doesn't have granular recovery. - Symantec Exec Backup 2010 seems OK but a bit expensive - Microsoft DPM 2010 requires full SQL Standard and for each machine I would need 4 Enterprise licenses. But does it allow Offsite backup without need for additional license and server outside of company (for doing DPM backup of DPM). What other options? This is 10 people company and so the costs matter but also convenience and security. Offsite backup is requirement.

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  • Convert RAID-0 to RAID-1 on HP ML350G6 with P410i zero memory

    - by JLe
    I have an HP ML350 G6 with a P410i zero memory RAID controller. As far as I can understand that means I can't expand a current single drive "RAID-0" configuration to a RAID-1 using the HP Offline ACU without installing memory and BBWC. Is that correct? What makes me think about this is the fact that expanding RAID-0 to RAID-1 should be pretty similar to replacing a failed drive in an already existing RAID-1? So then why can't I expand without memory and BBWC? Is my best option otherwise to (i) use Ghost to capture the disk, create a new RAID-1 with the existing drive and a new one or (ii) buy memory+BBWC and do it online? Thanks

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  • Virtual Microphone and skype

    - by Dario
    I need to have at least one microphone on Windows to make Skype calls, but i have a VPS with Windows 2003 server with no audio device. I googled a lot and finally i found something called "Virtual Audio Cable", a tool to install virtual audio drivers ( http://software.muzychenko.net/eng/vac.html ). I tried many times but i couldn't get this driver work, so i'm asking if someone know a similar solution, i mean a virtual microphone or a way to make skype working without any microphone. Thanks all!

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  • IIS Application Pool Memory Size Problem

    - by Roni
    I increased my application pool memory size from default to 500 mb. and i have IIS 7.5. My server sometimes falling down (service unavailable) and i don't know the reason. I did couple of changes at the same day that i changed memory size in iis and from that days i am getting this problem in one of my servers. Is there anybody can tell me what is the right way to increase memory and what can be the problems???? Thankss Roni

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  • Kickstart virtual console: No 'Shell prompt' at Alt-F2

    - by Stefan Lasiewski
    I am installing Scientific Linux 6.1 via kickstart, and I am trying to debug a problem. According to Tips and tricks for anaconda and kickstart, I should have several virtual consoles available: What the different terminals display Alt-F1 The installation dialog when using text or cmdline Alt-F2 A shell prompt Alt-F3 The install log displaying messages from install program Alt-F4 The system log displaying messages from kernel, etc. Alt-F5 All other messages Alt-F7 The installation dialog when using the graphical installer The Virtual Consoles Alt-F1, F3, F4 & F5 all work and show various logging information. However, the Virtual Console at Alt-F2 does not do anything. I could really use access to the shell prompt (Alt-F2), however there is no Shell prompt available at the second virtual console (Alt-F2). All I have is a blinking '_'. Can I forge Alt-F2 to show me a shell prompt?

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  • When and Where does Wubi mount it's virtual disks

    - by TuxPotato
    My use of the wubi-new-virtual-disk made Wubi start mounting this new virtual home disk over my /home folder. After the use of the script failed, I am left with Wubi constantly remounting an empty virtual disk over my /home folder. I followed the instructions on the Ubuntu website to revert the change, but the mounting continues. Where did Wubi put the mount operation, and how can I remove it? Thanks in advance!

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  • using wildcards in host-aliases for Tomcat's virtual hosts

    - by Marten Sytema
    I want to do the following with Tomcat 5.5: *.mydomain.com should go to my webapp, located at the virtual host mydomain.com. So I have a virtual host mydomain.com, and I want all *.mydomain.com also go there. Now, if I do this, it doesn't pick up the virtual host, and just goes to the default one (which is not set to mydomain.com). How to fix this? I basically would like to allow wildcards in the host alias, or in the virtual host name itself. (The DNS settings are alright by the way)

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  • apache log analysis tools for multiple virtual hosts?

    - by shreddd
    I am interested in trying to get a side by side usage comparison of all the virtual hosts being served up by my apache server. In the simplest case, I want to see a list (or bar chart) with each virtual host and the number of requests/traffic on that site. I've been playing around with webalyzer and awstats but I haven't been able to compare multiple virtual hosts in the same infographic. Anyone have any suggestions on tools for doing this (or how I might use the above tools to do so)?

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  • MS Office on Virtual Machine (Parallels): licensing

    - by keijo
    I'm running Win XP on Parallels on my two home computers (iMac and macbook pro). I'm planning to buy Office 2010 Student version and install it on my virtual xp:s. How the licensing of MS Office goes on virtual machines? I'm worried about the scenario where I have to re-install virtual machines (which happens some time), and because of that I have to install Office 2010 Student version many times. I think that the licensing of MS Office Student version allows installation only for three times?

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  • Server memory issues, and expected level of service from hosting company

    - by Greg
    I'm involved in maintaining an Ubuntu VPS which runs our django websites (nginx/apache/mod_wsgi) and we've been having some memory spikes which have either caused the database to die, or induced kernel panic when the memory management system can't find any killable processes. I'm working on fixing the memory spikes, but I'm wondering whether there's anything I can do to better deal with the problem if it occurs again. Are there any tools I could use to detect the memory spikes and then, say, kill the offending process and email the server admin to fix it up? Killing off one website so that the server can remain operational is certainly preferable to the whole thing falling over. Also, we were charged $600 for after-hours service because we had to get the hosting company to restart the server - is this standard practice among hosting companies? Another provider I work with provides a panel with which I can stop and start the server myself, and given that a restart was all that was needed, $600 seems mightily excessive. (That's NZD, it's around $445 USD)

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  • How to synchronize two folders on two remote Linux virtual machines

    - by Manoj Agarwal
    I have two virtual machines, Host OS is ESXi 3.5 and guest OS is Centos 4.6. There are two ESXi servers remotely located, each containing a Centos 4.6 virtual machine. I wish, whatever change I make in any file/folder in one virtual machine should be automatically synchronized on other remote virtual machine. The synchronization process should be automatic. It should only sync differentials, not simulate entire copy with overwrite operation. Sync should be intelligent enough to look for what has changed and what not, and should only update the changed files/folders. Further, there should be some sort of overview and selection for syncing, for example, if it shows 4 files have changed, It should be possible to sync only two files and leave other two for the time being. So, some intelligent syncing mechanism for Linux is needed.

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