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• Windows based development environment: HyperV, VMWare, or VirtualBox on development machine?

  - by bleepzter

  I am a software engineer with a little bit of an informal "support" functionality... I am trying to figure out what is the best possible approach to employing virtualization technologies into our development process. Since the code we develop is server-centric, testing it often requires a VM with specific software requirements. I used to use VM Ware player (free version) to run my VM's until both of my laptops started exhibiting issues with corrupted windows 7 services and dying hard drives. All leads pointed to VMWare, which by the way seems to be a solid product if you pay for the Workstation edition ($300). On a side note, I have always been a fan of the Windows Server product line. I think it makes for one of the best development environments out there - it is highly scalable, highly reliable, and very efficient. So to be fair I replaced the drives of the laptops and installed Windows Server 2008R2, VS2010 Ultimate SP1, SQL Server 2008R2, TFS Server 2010 and all other tools and API's needed do do my work properly. So now I am stuck with a bunch of VMWare VMs. I don't want to repeat of what happened before, and I certainly don't want to bog down my machine with an inefficient hypervisor or services that are not needed. Futhermore the VMDK hard-disk format used by VMWare is not compatible with the VHD format of Hyper V. It is my understanding that converting from one format to the other can only happen by Microsoft System Center Virtual Machine which I have downloaded from MSDN and ready to install. I guess the question at this point is: Does SCVM run as another service in Windows? Is it a memory hog? What is a better virtualization technology - Hyper-V or Virtual Box in terms of efficiency ease of use and most importantly - memory footprint? (Keep in mind the development environment already has a ton of services running such as TFS Server, SQL Server, IIS, etc...) How would you advise to proceed at this point so that the VMs are still used in the test process? Thanks Martin

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• Dead drive in LVM/XFS configuration

  - by Freddie Witherden

  I had three drives in LVM: a 2 TB drive and two 1 TB drives (added later). One of the 1 TB drives -- I believe the third one -- has died. Spanning all three drives was an XFS partition. Reading: http://www.novell.com/coolsolutions/appnote/19386.html I see that one way of handling this is to replace the dead drive and copy the metadata over. However, I am currently not in possession of a 1 TB drive and can not readily acquire one. Given this, what are my options? There was nothing important on the drives (if there was I would have them in RAID 1) but I would not mind attempting a recovery. Is there a simple way of forcing LVM to go with just two drives and NUL out anything else? (So that fsck can do its thing.)

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• win 2008 core create a partition with an offset to allow other partition expand

  - by Rqomey

  We are running a win 2008 core host in a HyperV role. We have expanded the logical drive on a RAID 1+0 array belonging to the server, as we needed more space. We have two data partitions D: and E: I want to expand them both so they use all space, and are equally sized. There is data on all partitions, although E is not in live use (so files can be moved and copied from it. Current: What I want- temporary Partition (F:) at end of drive: I am going to create a temporary partition F: so I can move the files from E: onto it, then delete E:, expand D: to the desired size, then rename F: to E: To do this I need to create F: from the end of the drive, ie. have unused space between E: and F: tl;dr How do I create a partition with a large offset in Windows server?

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• How do you passthrough native SATA drives to a guest on ESXi?

  - by John

  I have ESXi 4.0 running on an Intel DX58S0 Mothboardboard with an Intel Core i7 930 processor. VT-d is also enabled. I have three drives in the system, drive 0 is used for ESXi. Drive 1 and 2 contain data from an older machine and show up under the "Storage Adapters" section in configuration. I would like to allow a guest machine to access the data on these drives (as nativly as possible). I have enabled passthrough of the motherboard's built in SATA controller (Intel/Marvell 88SE6121 ). This controller shows up in my guest OS, but the guest shows no drives aside from the normal virtual drive. I have tried a Linux guest and Windows7. I have also configured the host machine to try IDE/RAID/ACHI modes for the SATA controller. Any ideas how I can configure one of my guests to get at the raw data on these drives?

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• Getting BootMgr not found errors repeatedly on Win7 x64

  - by abszero

  So here is the basic configuration of the box: Primary RAID 1 (Mirror, Bootable): 2x 300GB WD SATA drives AMD Phenom Quad Core x64 @2.2 ASUS M3N78 Pro Board 4GB RAM Win 7 Ultimate Additionally, this box is a Host OS for several CentOS Boxes via VirtualBox. The box runs like a champ but, for whatever reason, everytime I restart the machine I get a BootMgr not found error when the box tries to boot. I pop in my Win DVD, select 'Repair Windows' then 'Fix Start Up Problems' and everything works fine...once. When I restart the box again I have to go back through this process. Any ideas on what is going on?

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• ownership of hard drive recoveery of files Windows 7

  - by Jeff

  Here is the issue. I have an old laptop that died that was running xp. I now have a win 7 laptop. I need to get the files off the old drive. Win 7 will not let me take ownership of the drive. I can runn the comand prompt in regular mode and do a dir on the drive that shows up as Q: drive in regular mode. I gives me the volume as c and the serial number. I can not take ownership in regular mode with the comand prompt or other means. Microsoft site says use safe mode with networking. So I go to safe mode the drive shows up as G: in safe mode. I use the comand prompt Takeown /f G: and get the device is not ready error. I am at a loss. All I want is to retrieve my files from this drive. Any ideas or sugestions. I don't see how you can dir and get some info in one mode and not acces it in another. I have to get ownership and permissions fixed to get in the drive to get my files. Thanks in advance. I might add that I am using a usb3.0 to ide/sata cable adapter. Software came with the device but I can't make heads or tails out of the manual to know if any of the software can help me. The soft ware is PCClone Ex lite, and Clone Drive Soft ware

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• What is the cleanest way to upgrade Fedora and also my individual installs while keeping /home?

  - by Don

  I am a professional programmer, using Fedora 10 (and a host of other packages individually installed). I use my system to telecommute. Every year or so, I go through the ritual dance, usually with a second computer and a KVM switch as I don't have office space for two monitors, to build the next version of Fedora and install all my favorite apps. Is there a better way? At least a nice way to keep track of what I need to 'add on' so that I don't have to manually install my app collection? Also, I keep /home on a separate raid-ed drive set so I can also fall prey to 'old-config-file-itis'.

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• I need to preserve a tape using symantec backup exec. I'm aving trouble doing so

  - by MrVimes

  Please forgive me if this is the wrong stack exchange site. Please suggest which one I should post this to if it is. There's an automatic tape machine running in a remote location, with software (symantec backup exec 11d) Recently one of the servers being backed up had problems with its raid controller, so one of the drives has become invisible. I need to preserve the last good backup of that drive so I am trying to replace the tape with the most recent backup of that drive on it with one of the scratch tapes (blank tapes) present in the machine. I've tried the following... Associate the blank media with the media set in question (Wednesday) For the existing media (the tape with the data I want to keep) I click 'move to vault' and move it to the offline vault. I associate it with something other than 'Wednesday' (a media set called 'keep data infinitely...') I then do an inventory on that slot. The above steps I'm led to believe are supposed to put the fresh tape in the slot that had the tape I want to keep in it. But it just keeps showing up as containing the tape I want to keep after the inventory. (after refreshing the device tree) I am a complete newbie with this software. Can you tell me what I'm doing wrong, and/or tell me how to acheive my desired goal Edit: Just want to point out that I did try to get help directly from symantec with this, but having jumped through countless hoops to create an account and create a support ticket my progress was halted by requiring something called a 'tecnical contact id' at the final step with no explanation of what it is or how to get one.

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• Proper way to partition filesystem with Xen

  - by luckytaxi

  I'm coming from a vmware environment, wanting to play with Xen. I have a server with 2 x 500G SATA drives (no hardware RAID available, have to use software-based RAID1). My partitions are all RAID1 except for swap. I left a little over 400G for my VMs and I would like to use LVM for the disk images. For domU's swap, should I allocate that from the 400G or should that be coming from dom0's partition? I asked because I've seen numerous config options that shows either or.

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• difference between server and desktop

  - by user1241438

  I want to set up a webserver. I would like to buy a hardware for that and i am trying to understand if i should buy a desktop and host the webserver on that or do i have to buy some used server from ebay and host on it. Example is http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180986172861&ssPageName=ADME:X:RTQ:US:1123 But what is the difference in desktop and server? These days even desktops are coming with high RAM. Only other difference i see is servers have RAID HARD disk. Is there any other difference?

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• Why can't I install Ubuntu 10.04 on a system that already has Ubuntu 8.04?

  - by Android Eve

  Ubuntu 10.04 is beautiful. I love it. I am dying to install it on my PC, alongside the existing Ubuntu 8.04 (from which I write this message right now). But... it won't let me! When I reach the partitioning stage (manual!) Ubuntu 10.04 sees my two HDDs as one RAID volume. It doesn't see all the partitions I already have in place in /dev/sda and /dev/sdb. Even Windows 7 doesn't behave like this... (yes, I actually managed to install Windows 7 64-bit in dual-boot configuration with Ubuntu 8.04 on this same system). Note: GParted on Ubuntu 10.04 (live CD) sees the partition intended for Ubuntu 10.04 (/dev/sda4) perfectly, but is unable to format it. Any idea how to solve this problem?

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• 2012 R2 services will not start after promotion to Domain Controller

  - by Cybersylum

  Having a peculiar issue promoting a Windows 2012 R2 server in a domain at 2003 domain/forest functional level. Built a new 2012 R2 server, added the following software (labtech, appassure, eset A/V, & Teamviewer). It activated and appeared to be working fine. I added the Active Directory Domain Services role, and completed the configuration (Domain/Forest Prep, and DC promotion). All appeared to go well. I rebooted the server, and that's where the peculiar stuff began. I noticed the server indicated it needed activated again; but would not accept the key. I verified the key was good. That's when I noticed the Software Protection service (as well as many other core services - Base Filtering engine, DHCP client, firewall, etc) would not start. The error message for all of them was "Access Denied". I called MS, and they wanted to troubleshoot at a service level. Their fix was to use procmon and identify the resource that needed permissions (registry key, file or folder) and add "everyone" with full control). That got the services to start; but the problem re-appeared after a reboot. Thinking the issue might have been with the anti-virus package during the promotion process, I rebuilt the DCs from scratch and removed the metadata from AD (as I could not demote the machines "rpc server unavailble"). I tried to promote the newly built machines again. The only changes to the brand new machines being critical updates. Again the promotion appeared to work fine; but upon reboot (and a long wait to allow replication to occur) similar problems began to re-appear. I have verified that the schema updates are correct (schema version is 69 - for Windows 2012 R2). I am not finding much about this issue through my own searches, so I thought I would post this to see if anyone else has seen anything similar...

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• Reverse proxy for mailserver (SMTP + HTTP for web client)

  - by ba

  I'm looking at doing some reverse proxy work for a mail server with corresponding web client. Both servers are running on the same machine, this is not a server with a high load. :) The solution I've discussed with friends is having the mail server/web client on our internal network. Then to put a reverse proxy on the DMZ to service both SMTP and web client HTTP-traffic to the mail server on the internal network. From what I understand this is the recommended secure solution? So far I've thought for the SMTP-proxy part of using postfix which will receive mail, do some spamhause and similar anti-spam measures and if it all checks out, send the mail to the mail server on the inside. The mail server on the inside will send all outgoing mail to the proxy which will then send it out on the Internet. For the web client I'm not sure exactly which software I should be running on the proxy machine, I've been thinking about using Squid -- but that's basically based on the fact that I know squid is a http proxy. The web client data will be sent out over SSL. Reading around some here on Serverfault I've seen other people using Apache with mod_proxy+mod_security for similar situations. Am I thinking correctly for this solution? What software would you guys use and with which modules? Thanks in advance for the help! :)

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• Why does HDTune report better performing drives 2 months after installing them?

  - by Rolnik

  OK, so this is really weird. I ran HDTune on a newly set-up home-built computer and got the following readings from my drives in mid-November. SSD 154 MB/s RAID1 87 RAID0 198 (software installs) RAID0 98 Swap drive Today, in January, I run HDTune (same version) and get these results, in MB/s: SSD 186 RAID1 98 RAID0 241 RAID0 98 (Swap drive) Here are more details that HDTune reports on the SSD drive: HD Tune: OCZ-VERTEX Benchmark Blockquote Transfer Rate Minimum : 135.4 MB/sec Transfer Rate Maximum : 219.4 MB/sec Transfer Rate Average : 185.7 MB/sec Access Time : 0.1 ms Burst Rate : 187.3 MB/sec CPU Usage : -1.0% To get to my question: Why are my hard drives improving in performance? Most of my logical drives are in some form of RAID, except for the SSD. Will this performance ever deteriorate? Note, none of my drives are a hybrid drive that uses some form of SSD to enhance the write/reads on actual platters.

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• Symantec Antivirus Corporate -- two problems

  - by Alex C.

  We have a Windows network with a domain and about 50 clients. A few months ago, we installed Symantec Antivirus, Corporate Edition ver. 10.1.8.8000. There are two problems. The larger problem is that the software isn't very good at stopping viruses. In the last month, four different machines have become infected with those viruses that masquerade as antivirus software. Two machines I was able to clean with MalWareBytes. The other two were hopeless, and I had to reinstall Windows. Is there something I can do to make the Symantec product more effective? As far as I can tell, it successfully updates definitions nightly and pushes the definitions to the clients. The smaller problem is that the Symantec client applications sometimes initiate scans at random (and inappropriate) times. One of my co-workers complained to me yesterday that her computer was running very slow. I looked at the scan history and found that Symantec had scanned the computer three times during the past two days, and each time during the workday. No threats were found. Not sure why it's doing this, but I'd like it to stop. Any help would be appreciated. Thanks.

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• Xen Disk Performence Issues

  - by user98651

  I'm currently using Xen PV on CentOS 5 with my domU's as flat files running on a hardware RAID controlled (write cache enabled) formatted with XFS. On the dom0 I can get about 500MB/s in a 2GB dd write from /dev/zero however on the domU's I'm lucky if I get 10MB/s (it is usually around half that). I've tried changing the disk scheduling to NOOP on the domU's, changed some mount parameters and tweaked the performance allocations of both the dom0 (prioritize CPU) and domU's (increase RAM and VCPU allocations). None of these steps have produced any noticeable change in performance. My instinct here is that it is not a hardware problem, due to the solid performance of the dom0. Any ideas on what might be causing this problem? I'm considering moving to LVM based domU's.

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• Apache, logerror and logrotate: what is the best method?

  - by OlivierDofus

  Hi! Here's a vhost example of my sites: <VirtualHost *:80> DocumentRoot /datas/web/woog ServerName woog.com ServerAlias www.woog.com ErrorLog "|/httpd-2.2.8/bin/rotatelogs /logs/woog/error_log 86400" CustomLog "|/httpd-2.2.8/bin/rotatelogs /logs/woog/access_log 86400" combined DirectoryIndex index.php index.htm <Location /> Allow from All </Location> <Directory /*> Options FollowSymLinks AllowOverride Limit AuthConfig </Directory> </VirtualHost> I've got 12 sites running now. This gives something like: [Shake]:/sources/software/mod_log_rotate# ps x | grep rotate /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/error_log 86400 /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/error_log 86400 [snap (as many error_log as virtual hosts)] /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/access_log 86400 /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/access_log 86400 [snap (as many access_log as virtual hosts)] grep rotate [Shake]:/sources/software/mod_log_rotate# !!! I've been looking everywhere but I've only found mod_log_rotate. The "little" problem is that the author (very good C developper) explains: "Unfortunately Apache error logs are handled in such a way that we can't work the same log rotation magic on them. Like transfer logs they support piped logging though so you can still use rotatelogs for them. " So my question is: what would be the best way to handle multiple logs? If I just do a very classical log and I use the system's "logrotate" program couldn't this be a good deal? How would/do you deal with that? Thank you!

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• Serious 64-bit laptop

  - by Daniel Gehriger

  For the past couple of years, I have been using an IBM Thinkpad T60p for daily work (software development, desktop & embedded). I am extremely satisfied with this machine, due to its robustness. It also has a few features I depend on: a high resolution display: 15.0" TFT FlexView display with 1600x1200 (UXGA); excellent keyboard; decent graphics and CPU performance. Some of the software I develop benefits from larger amounts of RAM, and 3GB (Windows 7 32-bit) or 4GB (Windows 7 64-bit on T60p) are no longer sufficient. My customers run desktop computers with 20GB and more, and I need to have at least 8GB to at least be able to run reasonable test cases. So I'm shopping around for a new laptop, but I'm struggling to find anything that matches my requirements: must run Windows 7 64-bit Pro or higher; must support at least 8GB of RAM (more is better) high screen resolution! While I prefer 4:3 I can live with wide screen. But I really hope to find something with a vertical screen resolution similar to what I have now... portable, so < 16" but = 14" I realize that FlexView isn't available anymore, but I'd like to avoid a glossy screen if possible. decent (not more) graphics performance, ideally hybrid (I'm doing a lot of CAD, never games). good keyboard reasonable CPU -- but I'm still fine with my current Core 2 Duo, so that shouldn't be too complicated. The T60p fits all those requirements, except the 8GB of RAM. Can you help me find a current notebook that would match most of them? I don't mind changing brand. Thanks!

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• How does a winkydink Teradici offer high res, full FPS, 3D rendering on ESXi 5 VDIs for AutoCAD/SolidWorks/1080p YouTube applications?

  - by BlueToast

  How does such a small Teradici card ![enter image description here][1] offer high resolution, full FPS 3D graphics (1:38) http://www.youtube.com/watch?v=eXA4QMmfY5Y&feature=player_detailpage#t=97s for ESXi 5.0/5.1 VDI environments? We're shooting for an AutoCAD/SolidWorks/YouTube 1080p capable environment. I can't see how such a small and low profile card could possibly have the horsepower to handle such GPU computations for a big environment like that. We're going to have up to 64 VDIs per server, and are a 500-1000 employee count sized company. Someone enlighten me please! Determining which route to go (between RemoteFX and VMware View/PCoIP) and the hardware (NVIDIA 4GB non-Quadro/Tesla GPUs vs Teradici card). Servers have three 4x, three 8x, and one 16x PCI-E lane. Two of the 8x lanes will be occupied by SAS RAID cards.

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• email attachments [closed]

  - by Alan Doolan

  My company currently use software on a local machine that will take an email from the email server, extract the attachment, rename it and then add it to a folder on a webserver using ftp. This works well but they are currently asking if it can be done 'in the cloud' or what they really mean, not local. Is there any thing that would do this on the server itself? I should clarify a bit. The attachements are various reports that are being sent to different email addresses (mostly google corporate and free accounts). We need the reports to be on a folder on a webserver so that internal pages can take the information in the reports (csv) and use it on the webpages or adds them to a separate database. The key part being that the files need to be in the particular folders. Though it does work to have a computer running software that will take the files, renames them to the required name and uploads them to the folder it relies too heavily on one computer working all the time. This is not something we can depend on at this point. I'll be honest, I'm a web developer and not strong with server systems past my particular standard requirements so this is beyond me. though yes, I am aware that my boss is not 100% sure what 'cloud' means but likes the word.

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• How to disable Utility Manager (Windows Key + U)

  - by Skizz

  How do I disable the Windows + U hotkey in Windows XP? Alternatively, how do I stop the utility manager from being active? The two are related. The utilty manager is currently providing a potential security hole and I need to remove it[1]. The system I'm developing uses a custom Gina to log in and start a custom shell. This removes most Windows Key hotkeys but the Win + U still pops up the manager app. Update: Things I've tried and don't work: NoWinKeys registry setting - this only affects explorer hotkeys; Renaming utilman.exe - program reappears next login; Third party software - not really an option, these machines are audited by the clients and additional, third party software would be unlikely to be accepted. Also, the proedure needs to be reasonably straightforward - this has to be done by field service engineers to existing machines (machines currently in Russia, Holland, France, Spain, Ireland and USA). [1] The hole is via the internet options in the help viewer the utility app links to.

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• Can a OS be copied from one hard drive to another and still boot?

  - by AlexMorley-Finch

  Background My computer gets stuck on the make and model screen after the BIOS screen, aka the Toshiba screen. After some research I've realized that the problem is the hard drive. I'm using an old 250gb model that USED to be used for backup purposes, however I loaded windows 7 ultimate onto it This hard drive has trouble getting up to full RPM therefore cannot boot correctly until its warmed up. meaning that my pc needs to be restarted several times before it boots (once it took my 13 reboots to get my pc on!) From my research its either that, or lack of power supply, and I've tried multiple PSUs. Question I have my OS and all my files on this 250gb HDD... If I were to literally open the explorer, and copy EVERYTHING (including hidden files obviously) from this 250gb, to a spare 500gb I've got knocking about... Will it boot if I just copy everything? I cannot be bothered to load another OS onto my PC so if there is a way I can just copy the existing one over from one HDD to another and have it boot normally. This would be epic! I've heard about HDD cloning software. But before I purchase and/or download this software, I need to know if i can just copy the OS over through the windows explorer

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• Centos repository packages vs latest developer release

  - by fran

  I have started to run a personal server using CentOS and I have noticed that many packages that are available to install from repository are old compared with the latest release from the developer. I know that installing packages from repository is very easy and I guess that the supplied versions are stable and prepared to work without any trouble, but I still find odd having so much software that lags behind the current version. It's my first time with linux and I don't know what is the "normal" thing, should I stick to whatever version the repository supplies, or try to get the latest from the developer? To be more precisely, the repository supplies the apache httpd web server with version 2.2, I wanted to update to 2.4, so I started removing apache and its dependencies packages that come with centos to use the latest ones, but when I was about to remove pcre v6 to replace it with v8, i found out that 132 installed packages depend on it and probably it is not a good idea to remove it, so that made me think twice about getting the latest software instead of using the packages supplied by the official repositories. Should I leave things as they are instead of going on an upgrade rampage? Thanks

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• Installing Visual Studio Express on Windows 8.1

  - by robrene

  I've been trying to install the latest version of Microsoft Visual Studio Express from their website to toy around with the IDE and C# development in general. I have a relatively fresh and completely vanilla installation of Windows 8.1 Professional x64 for this purpose. I come from a Linux background, where installing software (especially software distributed by the maintainer of the OS) is usually done with package managers. First, I tried to look for Visual Studio in the Windows 8 Store. There was one entry, but it did not have an installation button. Instead, it redirected me to their website. From all the products listed under the "Download" section on their website, I decided Visual Studio 2013 Express for Windows Desktop was the best for me. I selected it and clicked on "Install now". An installer program downloaded, and I'm assuming that the installer downloaded the necessary files as it was running. When it was done, it asked for a reboot, to which I obliged. However, I can't seem to find the IDE installed anywhere? It doesn't show up anywhere in the Start menu interface. I can't find any executables that look like they might be the IDE in its installation folder. Running the installer again and selecting "Repair" does download some files, but after its requested reboot, nothing has changed. The only thing that I can find is an advertisement link to "Try other Visual Studio 2013 Products" in my start menu. I suppose my question is what I have to do to run Visual Studio 2013 Express on Windows 8.1? Am I not looking in the right places? Am I doing the installation process wrong? Thanks in advance

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• Server responses "bus error" to every command

  - by Temnovit

  I have a linux machine dedicated to MySQL server with a pretty high load. Today I woke up and was terrified to see, that database server is down. I could connect to it via SSH, but it was responding with bus error to each and every command. [root@r1304 home]# ls Bus error [root@r1304 home]# tail /var/log/messages Bus error [root@r1304 home]# reboot Bus error [root@r1304 home]# free -m Bus error [root@r1304 home]# chkdisk Bus error I went to Data Center and did a hard reset, which seemed to help, but after a half an hour situation reapeated and now I can't even connet via SSH anymore. Any ideas what this could be? how to diagnose such a problem and what are possible fixes? Server has 32 GB RAM, 2xSSD drives with software RAID UPDATE According to Zabbix, when MySQL died, number of processes stated to increase drammaticaly, until I did a hard reset. What could those be? Number of processes

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