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• Will a database server perform better running on 2 CPUs with 16 cores or 4 CPUs with 8 cores?

  - by AlexOdin

  What I have: an online financial application (ASP.NET, C#) at peak we have 5K+ simultaneous users backend is running on Oracle 11g (active server + stand-by using Active Data Guard). At peak - 4K-5K database sessions Oracle is installed on Linux 5.8 (Oracle's unbreakable version) the database size: 7TB disk storage: NetApp (connected with 10GB network) I would like to replace old servers (IT will purchase HP blades BL685C). Servers will have 256GB of RAM. I need your help to figure out what to do with CPUs and cores. Options: 2 CPUs (2.3 GHz) with 16 cores each 4 CPUs (3.0 GHz) with 8 cores each Question: Which one should I pick? P.S. Next year, we will migrate from Oracle to SQL server. I hope, whatever option you recommend will work for both platforms

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• Getting GTalk and Alt-Tab to play nice

  - by Steve Armstrong

  I'm running GTalk on Windows 7, and it refuses to work properly with Alt-Tab. Let's say I've got 2 message windows open (msg1 and msg2) and the contact list, as well as Firefox. Alt-tab from Firefox to msg1 works, but now the contact list is the most recent thing in the alt-tab list (not Firefox as expected). Then there's the problem that I can't use alt-tab to select a specific message window, and when switching back to msg2 (showing msg2 in the alt-tab window) it might switch back and have focus on msg1. I found this thread complaining about the same problem, but it's over a year old, and I'm hoping some progress has been made.

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• Cancel table design change in SQL Server 2000

  - by Bryce Wagner

  In SQL Server Enterprise Manager and change one of the columns and save it, it will create a table with the new definition, and copy all the data to that new table, and then delete the old table when it's done. But if your table is large (let's say on the order of 100GB), it can take a long time to do this. Even worse, if you don't have sufficient disk space, it doesn't notice ahead of time, and it will spend a long time trying to copy the table, run out of space, and then decide to abort the process. We have other ways to copy the data in smaller chunks, but those require significantly more manual intervention, so it's usually easier to just let Enterprise Manager figure it out, as long as there's enough disk space. So for a long running "Design Table" save like this, is there any way to cancel once it's started? Or do you just have to wait for it to fail?

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• Open Source project that does SSL Inspection

  - by specs

  I've been assigned to research out and spec replacing our old and decrepit http content filtering system. There are several open source filtering packages available but I've not come across one that does SSL inspection. The new system will scale to many branches of different sizes, from say 10 users to a few hundred, so purchasing an appliance for each branch isn't desirable. When we're further along, we will do custom programming as we have a few unique needs in other aspects of filtering, so if the suggestion takes a bit of customization, it won't be a problem.

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• Making a Live Thumb drive boot with Persistent files, settings AND *drivers* that load on boot?

  - by Luke Stanley

  I have seen https://wiki.ubuntu.com/LiveUsbPendrivePersistent but it's a mess. What methods support persistent drivers as well as files and settings and don't screw up lifespan of the flash drive? I'd like to see your personal recommendations on say, Portable Linux, USB Creator, Remastersys + Unetbootin, etc Backstory: I have a Inspiron 1525 that's hard drive has been slowly dying. I want to switch to a live USB/CD/DVD system until I can get it repaired but my laptops internal wifi device requires a network connection by another means for Xubuntu to let it work, and then I have to enter my Wifi key again, and THEN I have to reinstall Skype etc... I'd be damned every time I have to shut the laptop down. I'm ok with making a shell script for installing apps and copying settings as required but a good persistent install should make this old hat and slow and it doesn't take care of drivers. The last time I tried making an ISO with Remastersys it didn't seem to copy all the required settings.

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• Alternative, more efficient scraping method for a noncoder, than Google doc's importxml and xpath?

  - by binarybunny

  I've searched throughout the net for a simple solution, but it seems everyone has their own unique method (coding language) of achieving this. I'm only just beginning to learn Linux, and my coding skills are thoroughly lacking (non-existent). I love the simplicity of using importxml and xpath, but copying and pasting values after reaching the spreadsheet limit of 50 is getting old. Now that I've seen the light, I would really just like to know of a simple, yet scalable solution to get more data into more spreadsheets/databases. Before I really start getting my hands dirty, I would love to know some of the ways you guys go about accomplishing this?

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• Amazon EC2 EBS volume scheduled backup/snapshots using puppet / similar tools

  - by Ehrann Mehdan

  I am not a Linux admin, although I wish I was, and I have seen these questions Amazon EC2 Backup Strategy Amazon EC2 + EBS:: Regular backup plan? Simple Backup Strategy for Amazon EC2 instances / volumes? And this suggestion http://alestic.com/2009/09/ec2-consistent-snapshot I tried using command line + crontab (the command line works, but crontab for some reason, doesn't) But I'm still pretty lost, all I want is an automated, rolling backup of my amazon EC2 (EBS) data (by rolling I mean keep 3-4 weeks back, but delete old snapshots as new ones come for cost control) And as things usually go, if there is something that is hard and painful, someone creates a solution for it. My question is simple, is there a way using a tool like Puppet to do it without a painful learning curve? (or via other tools like http://ylastic.com) If yes, how?

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• How do I disable Tomcat? [closed]

  - by Dave King Popeye Mason

  Possible Duplicate: How to disable Tomcat on linux? According to my server host, something called Tomcat is hogging all my resources and slowing down the server. As far as I'm aware I'm not using it as the only thing running on the server is Plesk and a few Wordpress installations. I'm a real dummy at using SSH, I can navigate to folders, change permissions and that's about it. Could somebody explain to me as if I'm a 5 year old how to disable TomCat (and also how to stop it re-enabling on startup)? Thanks!

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• VSS error 12293 after system disk clone (Win2003)

  - by carlpett

  Hi! After cloning a windows 2003 installation from a single drive onto two mirrored drives using Acronis Disk Director, VSS no longer works, filing events 12293 and 7001 when trying to use backup tools, and additionally giving error 0x8004230f when accessing the Shadow copy tab of disk properties. I've google-researched this quite throughly, and found a suggested fix[1]: replacing the MBR signature of the disk. This would cause windows to invalidate old shadow copy information, which supposedly would make it all work again. However, I am a bit nervous over this... Is there a possiblity of messing this up somehow, because of the mbr originating from a single disk install, and now residing on a raid mirror? Has anyone here had this problem and solved it? This method or another? [1] http://kb.backupassist.com/articles.php?aid=2971 (under header Resolution 2)

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• Plugin 'InnoDB' registration as a STORAGE ENGINE failed. On win 7

  - by NimChimpsky

  I have had to reinstall MySQL, however the service is failing to start with the above cause listed in evnt viewer. One solution is apparently to delete a couple of files prefixed with 'ib_logfile' which represent any old databases. However I do not have these files, and my service is still failing to start ... ? When I say I don't have these files I did a search using the windows search with zero results, and they are definitely not present in my mysql install directory. And I don't have the "documents and setting/appilcation data' folder referenced in link. In fact I only have only one mysql install directory, I know where that is - what do I need to delete/change ? The instance is configured OK, I ran that as administrator and it is listed in services, but the service itself fails to start Any tips, other than going over to postgresql ?

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• Disabling a touchpad in Windows

  - by Shamaoke

  I want to permanently disable a touchpad in Windows running on my laptop, since firstly, I use a mouse, and secondly, when I work, I often touch it accidentally what causes definite inconviniences. I tried the following approaches to disable it but with no result: Turned it off through BIOS — there's no such function there; Turned it off through the touchpad configuration utility — there's no such function there; Turned it off through the device manager — the disable button is inactive; Turned it off through a hotkey (Fn + F1 in my case) — the hotkey doesn't work; Uninstalled the proprietary driver — Windows automatically downloaded the standard driver; Uninstalled the standard driver and turned off the automatic driver download function (Win + R ? "systempropertiesadvanced" ? Hardware ? Device Installation Settings) — all the same, Windows downloaded and installed the driver. How can I disable a touchpad? Windows 7; the Alps touchpad.

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• High CPU usage on Linux machine

  - by user305210

  I have a piece of java code running on two different machines, but on one of the linux machines, the code uses alot of CPU (close to 100% cpu usage). On the other machine the same code uses less cpu (under 3 to 4%). The machine where cpu usage is high, is a more powerful machine, more CPU and and more memory. This has started happening recently and performance on the machine with high cpu usage has degraded significantly. I am wondering if anyone has any ideas why something like this could happen, possible causes behind this etc. any guesses? No recent changes in hardware were made, no recent code updates... Thank you.

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• Windows XP loses drive letter for existing partition on disk

  - by Kev

  Hi, apologies if this has already been asked - I couldn't spot anything exactly the same. I'm looking for help on the fact that Windows XP has suddenly decided to stop assigning a drive letter to the second partition on my laptop's disk. I haven't added or changed hardware and I keep everything pretty clean in terms of software installed. I've partitioned the disk into a system partition on C: and a user partition on d: but lately, when booting or coming out of hibernation or sometime from stand-by, Windows will lose it's d: mapping. If I notice and remap it from MMC, everything will be perfectly happy and will keep going. Any help on this will be greatly appreciated. Cheers, Kev

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• Hypervisor for mixed client and server OSes

  - by Mark

  I need to replace three old boxes I use for development, running Linux, Win Server and Win XP. Instead of purchasing three new boxes I am thinking of purchasing a single box and virtualizing the OSes. As it is for development, absolute performance is not a problem, but I want the Linux and Win servers to run continuously, while running Win 7 as if it is a regular PC. Therefore running Linux and Win Server on top off Win 7 is not an option. Is this a viable solution? Has anyone done this? What is performance like? I'd like to get decent graphics performance with Win 7, sufficient to run the occasional game. If so, I'm looking for suggestions or recommendations on which hypervisor or virtualization option to go for.

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• Apple shortcuts in Ubuntu

  - by rcourtna

  Hi, I switch between a Mac and Ubuntu often. On my Ubuntu box, I use an Apple Aluminum keyboard. I'm interested in Apple's "command" key: ? (I'm not concerned about the hardware control keys) cmd-T opens a browser tab cmd-C, cmd-V for copy/paste, especially in a terminal window control-c maintains the same meaning in terminal (abort) Just switching the control & command keys in Ubuntu would almost get me there, except for the special behaviour of the keys a terminal (Terminal is my most frequently used app). Has it been done? edit: using Gnome, not KDE

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• Apache port forwarding with ZTE ZXV10 W300 router (provider specific firmware)

  - by dannote

  I'm trying to configure port forwarding for Apache 2.2 installed on Windows XP SP3 with ZTE ZXV10 W300 router. The computer has a static IP 192.168.1.2. Port forwarding is configured as following: Enable true Name Apache Protocol TCP (also tried TCP and UPD) WAN Host Start IP Address empty WAN Host End IP Address empty WAN Connection stream WAN Start Port 8080 WAN End Port 8080 LAN Host IP Address 192.168.1.2 LAN Host Start Port 8080 LAN Host End Port 8080 Port 8080 is open for both TCP and UPD in Windows Brandmauer. Apache configuration: Listen 192.168.1.2:8080 Router Firmware: Hardware Version V1.0.01 Software Version V8.0.02T03_CFA Boot Loader Version V1.1.2 The provider is COMSTAR. I'm not sure but it's said they flash routers with modified firmware. I have also tried to set up Bitcomet port forwarding on port 13514 and failed.

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• Windows 8 scroll lag

  - by samayres1992

  Don't have an issue with the desktop experience, but when it comes to the apps, scrolling in some of them is impossible to use correctly. Very laggy and jumpy, which is surprising because my computer has relatively high specs, only a year old. Scrolling using the manual scroll bar has no lag whatsoever it's simply whenever I use my touchpad. Maybe it's a touchpad issue? or more likely windows 8 as it seems fine in desktop view for scrolling? Any ideas where the problem may lie? Thanks

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• How much should I charge for setting up a client web server? [closed]

  - by Vincent

  I have quite the eccentric client who wants to move all his ecommerce websites (about 5-10, all PHP/MySQL) to his own web server that I'm supposed to build. He doesn't want to hear anything about VPS hosting and all the issues and expenses related to owning a server. My responsibility would be to buy all the hardware, install and configure software, etc. How much should I charge for this? I'm planning to start with two relatively moderate Dell PowerEdge C2100 servers, one for web (NGINX), one for db (MySQL).

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• Windows 7 Activation with Bootcamp and VMWare

  - by Jason Hernandez

  I have windows 7(64) installation setup on a Boot Camp partition on my MacBook Pro 13". I also access this partition through VMware hosted by OS X (snow leopard). Every time I switch between VMware and Boot Camp windows says that it needs to be re-activated because of hardware or driver changes. I've tried wmware KB KB 1003426 to no avail. Edo Thanks, Jason Edit, I am using the most recent VMware and tools. I've tried "KB 1004917" as well. No Dice. I'm considering re-installing at this point.

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• Does a Required Restart for Windows Update log an event? If so what is the source/id?

  - by Beuy

  Hi there, Does anyone happen to know if a required restart in order to apply Windows Updates creates a entry in the event log? If so which log is it under, and what is the source/id? I have a legacy system that needs to an account, constantly logged into console for applications to function as required (Some old PROCOMS modem software for customers without Internet access but a telephone (Dial-up? Separate issue, don't get me started -.-)). When an update is applied to this machine that requires a restart (Server 2003) I would like an e-mail alert to be sent.

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• Windows 7 CRC Error When Installing Fallout 3 [closed]

  - by c00lryguy

  Earlier today, I installed Fallout 3 on Windows XP perfectly fine. Then about 2 hours ago I installed Windows 7 and I would like to install Fallout 3. But, when I try to install Fallout 3 on Win 7, I get an error while in the middle of the install: CRC Error: The File C:\Program Files\Bethesda Softworks\Fallout 3\Data\Video\B03.bik doesn't match the file in the setup's.cab file I forget the filename but it is the same each time I install. The disk literally went from the DVD-Rom to the case after the first install and straight from the case to the DVD-Rom. It's in perfect condition. My DVD-Rom is only about 2 months old and I've never had any problems with it. I don't understand what's going on. My user that I'm installing the game with is set as Administrator, as well.

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• powertop keeps telling me to turn off the same thing, over and over

  - by Rory McCann

  I am running an ubuntu lucid laptop on battery. I want to make my power last as long as possible. Aswell as the normal things like turn down screen brightness, and turn off wifi, I'm using powertop. It will sometimes tell me things, e.g.: Suggestion: Enable USB autosuspend by pressing the U key OK, I press the U key to do that. However a few minutes later it will give me the same suggestion, it's as if it never enabled USB autosuspend the first time. It does this for other things aswell, not just USB autosuspend. e.g. it'll give me this message frequently: An audio device is active 100.0% of the time: hwC0D1 LSI ID 1040 Q - Quit R - Refresh A - Turn HD audio powersave on Is there anything I can do to make these choices 'stick'? Or do I have some unfortunatle hardware that won't obey linux? (If so, is there any way to confirm this?)

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• Windows SBS 2011 DNS Role (service) failing & needing restarting

  - by HaydnWVN

  Have a Windows SBS 2011 with Exchange that is handling all DNS for the network. Since getting a 3rd party (Hardware & Support) to setup a recieving FTP service and restricting Exchanges memory useage for another 3rd party product (Stock software) the local network seems to periodically 'lose the internet connection'. Delving deeper I found that the DNS service is somehow failing/stopping without the actual service on the server reporting such (nothing in event logs). A simple restart of the 'DNS Role' on the server solves the problem. The manager onsite reports that he has to do this most days in the afternoon - yet not at the same time and other days it works fine without a restart being required. I'm unable (lacking sufficient SBS2011 knowledge) to diagnose this further, ideally I would like the DNS Role to report (and log) the failure, then automatically restart itself.

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• Duplicate incoming TCP traffic on Debian Squeeze

  - by Erwan Queffélec

  I have to test a homebrew server that accepts a lot of incoming TCP traffic on a single port. The protocol is homebrew as well. For testing purposes, I'd like to send this traffic both : - to the production server (say, listening on port 12345) - to the test server (say, listening on port 23456) My clients apps are "dumb" : they never read data back, and the server never replies anyway, my server only accepts connections, and do statistical computations and store/forward/service both raw and computed data. Actually, client apps and hardware are so simple there is no way I can tell clients to send their stream on both servers... And using "fake" clients is not good enough. What could be the simplest solution ? I can of course write an intermediary app that just copy incoming data and send it back to the testing server, pretending to be the client. I have a single server running Squeeze and have total control over it. Thanks in advance for your replies.

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• Intel Xeon vt-d query

  - by deploymonkey

  Does Xeon westmere ep (xeon 56xx series) have vt-d (=iommy / direct io) or does intel TXT (Intel® Trusted Execution Technology) include vt-d? I'm at a loss. I've been researching current processors for an important project for some time now. I need to know, if the xeon 5600s (Westmere EP) include vt-d (iommu/directed io/pci passing) because the system will run virtualized guests. This enables direct hardware access eg. pci passthrough, in xen for example. It seems that the 5600s TXT should incorporate vt-d and that xeon 5600s should include vt-d as they are ramped up 5500s, but there is no conclusive answer anywhere. Intel's processor comparison only states that 5500s have vt-d and no TXT and 5600s have no vt-d but TXT. I'd be really grateful if anybody could clear this up and possibly even provide a citation. Thanks a lot.

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