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  • Technical details for Server 2012 de-duplication feature

    - by syneticon-dj
    Now that Windows Server 2012 comes with de-duplication features for NTFS volumes I am having a hard time finding technical details about it. I can deduce from the TechNet documentation that the de-duplication action itself is an asynchronous process - not unlike how the SIS Groveler used to work - but there is virtually no detail about the implementation (algorithms used, resources needed, even the info on performance considerations is nothing but a bunch rule-of-thumb-style recommendations). Insights and pointers are greatly appreciated, a comparison to Solaris' ZFS de-duplication efficiency for a set of scenarios would be wonderful.

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  • Experience with Intel X25-M 160GB and Oracle

    - by derobert
    We're considering building an Oracle database with 12 Intel X25-M G2 160GB drives in software RAID10. It'd be running Linux. Database gets some very heavy write activity during the early morning data load, other than that it is mostly read-only (and the read load is fairly minimal). We're currently running on 11 150GB Velociraptors (also Linux software RAID10), and are hoping the X25-M will speed up the data load. We currently have redo on different disks than the rest of the data. I'm wondering a few things: Any experience with using X25-M drives for databases? The X25-E are unfortunately beyond our budget. Would it hurt to separate redo off to some magnetic (non-SSD) drives, say 2 (raid1) or 4 (raid10) Seagate Constellations?

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  • Restrict second screen to certain window/application

    - by Daniel Hepper
    I have a system with two screens. On the primary screen, I want to use Windows in a normal way. On the secondary screen, I want to display a window of a certain application and nothing else. In no case should anything else than this specific window show up on the secondary screen: no other applications, no dialog boxes. If possible, I want to restrict the mouse pointer to the primary screen as well. I tried UltraMon, but I think my requirements go beyond its features. Any ideas?

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  • Pull/push student assignment files from computer lab computers (Windows 7)

    - by mkstreet
    I have a computer lab with about 35 PC's all running Windows 7. The students do their work and save it on the D-drive in a particular folder such as a folder with the same name as the computer's name (e.g. LABPC001). I'd like a centralized way to pull all these folders in to the teacher's computer in the lab to check the assignments. It would be best if this didn't involve using an external website (e.g. Dropbox). I would also like to be able to distribute (send) files to the students in these same folders. I've seen software applications that do this but they cost about US$1000 which is far beyond our means. Suggestions for free, or almost free, best ways to set this up?

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  • Nginx proxy with SSL Authentication

    - by Dustin Oprea
    I need to proxy an SSL-authenticated connection to another server that requires an SSL authenticated connection. I realize that the incoming and outgoing connections of the proxy may have different certificates, but is it possible to call proxy_pass and tell it to use a certificate/private key for connection to the proxied system? Based on the documentation, it doesn't seem possible. Maybe with another module?

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  • Disaster - partitions lost, data seemingly alive, how to recover?

    - by a2h
    I've used TestDisk and it's written my old partition structure of a ~20GiB partition for Vista, ~25GiB partition for 7 (but it now shows up as unallocated) and a ~400GiB partition for documents. What it's meant to be is a 30GiB partition for 7, some unallocated space, and a ~400GiB partition for documents. So currently, I have access to all my documents, but not any of the programs I've installed on C:, or AppData, because my boot partition is now supposedly a 20GB vista partition. I've tried using my Windows 7 install disc's repair function, but that did nothing beyond wasting about 10 minutes of my time. I'm currently posting from an Ubuntu live CD. Any help?

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  • How to use query-replace on filesets in emacs

    - by user93341
    Emacs documentation states that you can use query-replace on filesets to perform find/replace on multiple files. This lets you perform certain operations, such as visiting, query-replace, and shell commands on all the files at once. I've opened my particular fileset (i.e. via fileset-open) and attempted query/replace using both: M-% and M-x query-replace but can't get it to work on anything but the file (buffer) I'm currently in.

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  • SSL encryption standards by browser

    - by hfidgen
    Hiya, Does anyone have a table of the default levels of encryption which the various browsers out there support? For instance I know that IE5 and lower struggle even to cope with 40 bit encryption but the latest browsers easily do 256 and beyond. The reason I ask is that I'm looking to get a wildcard certificate for my domain and the price difference is huge between a server gated certificate (where it enforces a minimum of 128bit) and a non-gated certificate (where the browser sets the encryption level). Obviously I like the idea of paying £300 less for the non-gated certificate, but only if I can be sure that the majority of my users (FF3 / Opera / Chrome / IE7+) are going to get good encryption.

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  • Does chunk size affect the read performance of a Linux md software RAID1 array?

    - by OldWolf
    This came up in relation to this question on determining chunk size of an existing RAID array. The general consensus seems to be that chunk size does not apply to RAID1 as it is not striped. On the other hand, the Linux RAID Wiki claims that it will have an affect on read performance. However, I cannot find any benchmarks testing/proving that. Can anyone point to conclusive documentation that it either does or does not affect read performance?

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  • Apache: scope for environmental variables

    - by Anonymous
    While there's documentation available on Apache environmental variables, I can not find answer to one important question. Imagine I use rewrite rules to set environmental variable RewriteRule ... ... [E=something:1] What is the scope of "something" - global Apache server (this means "something" will be available for other request transactions), this request (means that "something" is only valid for THIS http request (and its related processing - but what's about internal redirects and other internal stuff - are they considered as THIS request, or another one?), and may be set differently within another (concurrent) request?

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  • How get OSX Lion to save Modifier Key Settings (i.e. swap Ctrl and Cmd)

    - by Huliax
    I use Lion at work with an MS Natural Ergonomic Keyboard 4000. Every single time I log in I have to go into settings and swap the command and control keys. This is really annoying. Is there a way to get these settings to stick? Beyond that, I'd also like to remap a few other keys and I'm interested in tools for doing that. I think I need to work out the first issue first though. Thanks for any help.

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  • How to copy a button with shadow effect from PSD to PNG

    - by Alex
    I got a web site design in PSD file from a web-designer. All element s there snap to guides, which is handy when I make a selection to copy an element of design to a PNG file: guides make my selection precise. One button there has two states: normal and hover. Both states contains of several layers. So I am trying to copy both states as PNG files in order to make a nice button in html. The problem is that both states have shadow effects, which go beyond the layers' edges, i.e. when I try to select a button my selection (snapped to guides) does not include an outer part of the shadow. How do I make a precise selection of the button state in such situation?

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  • Moving Sharepoint 2003 databases to a new SQL Server

    - by GardenMWM
    Recently we completed a new MSSQL cluster that we are planning on migrating all existing SQL databases to. This includes our Sharepoint databases, while looking into moving the databases I found the Microsoft documentation for moving Sharepoint 2007, however have not been able to find anything similar for Sharepoint 2003. Can anyone point me to a guide for moving the databases, or provide some tips, instructions or warnings? Thanks

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  • Can a PCI Graphics card, and AGP be used together?

    - by Everyone
    The question pretty much says it all. I use an old 845GBV board ( to-date reliant upon the integrated graphics processor ). All slots on the board are unused. Lately I've been thinking in terms changing it to a dual monitor so that I can use one console for documentation/help/sample code/whatever, the other one to play with code. Assuming this board can handle a PCI GPU, can an AGP4x board coexist with a PCI GPU?

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  • iPhone Configuration Utility -- how to sign configuration profile? [closed]

    - by retin
    I've created a configuration profile but I cannot sign it using the utility v3.3. I registered an email certificate but the utility does not pick it up. Unfortunately, I've found the documentation for this tool lacking and I cannot find out how to do this properly. Can someone tell me what kind of certificate I need and how I need to install it in order for the utility to let me sign the profiles?

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  • Is there a GraphicsMagick equivalent to ImageMagick's image stack?

    - by naivedeveloper
    Although GraphicsMagick is a fork of ImageMagick, there are dissimilarities between the two, namely in the support of image stacking in ImageMagick, but not in GraphicsMagick. Taken from the ImageMagick documentation: convert wand.gif \( wizard.gif -rotate 30 \) +append images.gif In this example, the rotate command is applied only to the wizard.gif resource. My question is: Is there an equivalent to image stacking in GraphicsMagick?

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  • How can I get "Calculated Columns" to work in excel?

    - by Shawn Persels
    Using Excel 2010, I want a single formula to apply to all cells in a column. I see documentation for a feature called "Calculated Columns". That is exactly what I want, but when I follow the instructions I only end up creating a formulate in a single cell - not the whole column. I don't want to use "Fill" or "Copy" because the number or rows in the sheet changes periodically and maintaining the formulas would be very tedious.

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  • How can I get Dreamscene wallpapers to change randomly in Win7?

    - by andygrunt
    Having only recently moved over from Windows XP to Windows 7, I’m a big fan of the ‘Dreamscene’ animated wallpaper. I’m also a big fan of the Win 7 ability to select a group of still wallpaper bitmaps and set it to randomly change wallpapers every ‘X’ minutes/hours. What I want is the ability to do the same with the dreamscene animated wallpapers, i.e. select a group and they randomly change every ‘X’ minutes. Beyond that, I’d also like to be able to select a group of stills and animated wallpapers and randomly change between them.

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  • Windows/global setting to allow only SSL when on public Wifi?

    - by hungry
    Rather than going through each of my apps and modifying settings, or tweaking individual browser settings (I use three different browsers) or just being careful not to type non-SSL URLs into the web address bar, is there a solution at the Windows level that will prevent anything from connecting to the web from my laptop unless it's using SSL? I also have mini apps installed like Gmail checker, etc that connect to the web of their own volition using my usernames, passwords and such, so it goes beyond just web browsers. The reason I'm asking is I want to work securely on the general Internet when on public Wifi (e.g. coffee shops) without a lot of hassle or having to remember everything that needs to be locked down. When I'm back home I want to go back to full access mode using any kind of protocol on the web. If a website doesn't support SSL when I'm out in public then I just don't surf it - that's not a worry to me.

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  • enable tcp_syncookies even after reboot

    - by Tim
    I'm running Scientific Linux 6.1 and would like to set net.ipv4.tcp_syncookies=1. I've set that in /etc/sysctl.conf and, if I do a sysctl -p then sysctl -q net.ipv4.tcp_syncookies it shows it's properly set. Sadly, if I reboot the machine, and sysctl -q again, it goes back to 0. I've tried to grep around and see if something else is resetting it to 0 during the boot process but haven't turned up anything. I've googled and everything points to sysctl.conf. The only thing I can think of is maybe networking isn't up by the time that file gets read but, honestly, I'm a developer and well beyond my natural skills here:) I'm tempted to just set it directly in /etc/init.d/network but then that feels hackish and so, I thought better of it and I'm here in search of the "right" way to do it. Any pointers?

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  • Need more clarification on upgrading to 4GB on an Acer Aspire 5102WLMI

    - by Hub Lemeer
    In one of the questions before (October 2009) the question has been answered how to get an ACER Aspire 5102WLMI with 4GB of memory up and running beyond POST. I have exactly that problem, but don’t get it resolved despite your answer. I really don't know which PCB tracks have to be shortened and the 'jumper' J2 doesn't exist. There is a JP2, but that seems to be no jumper to me. I have made a photograph of the PCB tracks under the DIMMs. Would you please be so kind to give me a clue what to do (referring to that picture)? Thank you very much in advance! I AM NOT ALLOWED TO ATTACH THE PICTURE as a new user. Apologize. Can please someone tell me how to attach the image? I don't know how to earn points. ![alt text][1]

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  • Overriding IndexIgnore in .htaccess file

    - by vsr
    I have IndexIgnore * in a directory for which I don't want to allow directory listing. Now, in a sub-directory, I want to override the IndexIgnore directive defined in parent directory and allow directory listing. The documentation for IndexIgnore says The IndexIgnore directive adds to the list of files to hide when listing a directory. How do I allow directory listing for this sub-directory?

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