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  • Minimize writes to SSD disks with Windows 7

    - by mfn
    Most people use their SSD as their primary system installation disk with Windows 7. W7 already has a lot of optimizations for SSDs, both in terms of performance and lifetime. Minimizing writes increases the lifetime of SSDs, so post each suggestion as an answer and let others vote on them.

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  • WSUS registry file: NoAutoRebootWithLoggedOnUsers entry being ignored

    - by the_pete
    We are using a registry entry to connect our internal workstations to our WSUS server and everything seems to be working except the NoAutoRebootWithLoggedOnUsers entry. Without fail, over the last few weeks, our lab setup as well as our users have been prompted to restart their machines with a 15 minute time out and there's nothing they can do about it. They can't postpone or cancel the restart, all options in the prompt are greyed out. Below is the registry file we are using to connect our workstations to our WSUS server: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate] "AcceptTrustedPublisherCerts"=dword:00000001 "ElevateNonAdmins"=dword:00000000 "WUServer"="http://xxx.xxx.xxx.xxx:8530" "WUStatusServer"="http://xxx.xxx.xxx.xxx:8530" [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU] "AUOptions"=dword:00000004 "AutoInstallMinorUpdates"=dword:00000001 "DetectionFrequencyEnabled"=dword:00000001 "DetectionFrequency"=dword:00000002 "NoAutoUpdate"=dword:00000000 "NoAutoRebootWithLoggedOnUsers"=dword:00000001 "RebootRelaunchTimeout"=dword:00000030 "RebootRelaunchTimeoutEnabled"=dword:00000001 "RescheduleWaitTime"=dword:00000020 "RescheduleWaitTimeEnabled"=dword:00000001 "ScheduledInstallDay"=dword:00000000 "ScheduledInstallTime"=dword:00000003 "UseWUServer"=dword:00000001 There is a bit of redundancy, if you want to call it that, having both the NoAutoRebootWithLoggedOnUsers entry as well as the entries for RebootRelaunchTimeout but we wanted to see if we could either disable the restart, or give our users a larger window within which they could wrap up their work, etc. before restarting. Neither of these entries seems to work, but our priority is getting NoAutoRebootWithLoggedOnUsers working and any help with this would be greatly appreciated.

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  • How can I generate filesystem images that are usable on many different virtualization systems?

    - by Mark Longair
    I have written a script that generates a root filesystem image (based on Debian lenny) suitable for User-Mode Linux. (Essentially this script creates a filesystem image, mounts it with a loop device, uses debootstrap to create a lenny install, sets up a static IP for TUN/TAP networking, adds public keys for login by SSH and installs a web application.) These filesystem images work pretty well with UML, but it would be nice to be able to generate similar images that people can use on alternative virtualization software, and I'm not familiar with these options at all. In particular, since the idea is to use this image as a standalone server for testing the web application, it's important that the networking works. I wonder if anyone can suggest what would be involved in customizing such root filesystem images such that they could be used with other virtualization software, such as VMware, Xen or as an Amazon EC2 instance? Two particular concerns are: If such systems don't use a raw filesystem image (e.g. they need headers with metadata or are compressed in some particular way) do there exist tools to convert between the different formats? I assume that in the filesystem, at least /etc/network/interfaces will have to be customized, but are more involved changes likely to be necessary? Many thanks for any suggestions...

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  • Stop windows 7 disk thrashing when idle

    - by Konrads
    Hello, I installed Windows 7 on VMWare and it works just fine! However, when I leave the machine idling and work on my host OS, Windows 7 decides that it is a good idea to thrash disk and kill performance. How do I disable these background processes? Is it just indexer?

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  • building a debian base image

    - by Michael
    Is there a preferred way to create base images for Debian-based customized installations? We are currently going with multistrap but although it's better than hand-crafted chroot stuff, it still has a lot of edges and corners. Is there a more reliable and less error-prone way to produce a root filesystem of a Debian installation with some additional .debs installed? (I don't want to send out a Debian installer with a preseed file though.) Addendum 1: To clarify things a bit: We are delivering some kind of software appliance to our customers. That is, a debian operating system, with some additional software packages -- both our own and third-party ones -- and some configuration changes. To ease the installation process, we have an installer that does nothing more than partitioning, copying files to the partitions and setting up grub. So it's basically an image-based installer. So we are basically running the debian installation ourselves and just distribute the already installed operating system. The question is about the installation part. I want to have that as easy and robust as possible, and of course, it should be an automated process.

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  • Apache configuration FollowSymlinks- Apply to php scripts?

    - by Josh
    I have Options set to none for my webroot directory. I also have a symmlink /var/coderoot - /var/webroot/coderoot In the php script I can do include("/var/coderoot/file"); and it works fine. Regardless of the option (yes I save and restart apache.) Does follow symlinks only apply to symlinks used in a certain way? Is there a performance loss using the include with a symmlink?

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  • How to optimize a postgreSQL server for a "write once, read many"-type infrastructure ?

    - by mhu
    Greetings, I am working on a piece of software that logs entries (and related tagging) in a PostgreSQL database for storage and retrieval. We never update any data once it has been inserted; we might remove it when the entry gets too old, but this is done at most once a day. Stored entries can be retrieved by users. The insertion of new entries can happen rather fast and regularly, thus the database will commonly hold several millions elements. The tables used are pretty simple : one table for ids, raw content and insertion date; and one table storing tags and their values associated to an id. User search mostly concern tags values, so SELECTs usually consist of JOIN queries on ids on the two tables. To sum it up : 2 tables Lots of INSERT no UPDATE some DELETE, once a day at most some user-generated SELECT with JOIN huge data set What would an optimal server configuration (software and hardware, I assume for example that RAID10 could help) be for my PostgreSQL server, given these requirements ? By optimal, I mean one that allows SELECT queries taking a reasonably little amount of time. I can provide more information about the current setup (like tables, indexes ...) if needed.

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  • Why am I getting a Sharepoint error on a simple "hello world" web page?

    - by Fetchez la vache
    I've been granted admin access to an internal IIS server on which I need to set up a web site. Before doing anything technical I wanted to ensure that I could access the server, but when attempting to access a simple page (that does not refer to Sharepoint) at http://localhost/index.html when logged onto the server directly, I am getting Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load file or assembly 'Microsoft.SharePoint' or one of its dependencies. The system cannot find the file specified. Source Error: Line 1: <%@ Assembly Name="Microsoft.SharePoint"%><%@ Application Language="C#" Inherits="Microsoft.SharePoint.ApplicationRuntime.SPHttpApplication" %> Source File: /global.asax Line: 1 Assembly Load Trace: The following information can be helpful to determine why the assembly 'Microsoft.SharePoint' could not be loaded. WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:2.0.50727.5456; ASP.NET Version:2.0.50727.5456 To be quite honest I know zip about Sharepoint, so why am I getting a sharepoint error on a basic "hello world" html page? Cheers :) Update: I've since supposedly uninstalled Sharepoint, but am still getting this error. Any ideas welcome!

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  • Ubuntu 64-bit vs 32-bit

    - by tukushan
    Is it worth installing the Ubuntu 9.10 64-bit version over the 32-bit x86 version? I will get the ability to address more than 4 GB of memory, but other than that, how does the 64-bit version fare in terms of performance and stability?

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  • compare windows server for patch/update/hotfix installs

    - by user12002221
    Are there any tools that can be used to connect to windows 2008 servers, and get a comparison of the installed patches/updates on the servers, showing what is installed on one and not on the other? This is to help isolate an issue we are seeing on a specific windows server, in a load balanced setup. There is a certain performance/locking issue, which is mitigated whenever one of the servers is disabled. Please share, if you have any suggestions. Thanks in advance!

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  • Full list of top-like tool family for perfomance monitoring in linux: iftop iotop htop atop more? [closed]

    - by Yauhen Yakimovich
    Top-like utilities are extremely handful in my work and I want to make sure I am not missing any of them. Please extend the following list of performance monitoring (top-like) family of linux tools: top - original tool htop - adds support to multicore/cpu iotop - input/output monitoring iftop - network monitoring atop - merges previous elements into a single overview slabtop – displays a listing of the top caches ? The only criteria - maturity and similarity in function/style.

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  • How can virtualization be efficient?

    - by pestaa
    As I understand, the virtual machine and the guest OS doubles the amount of abstraction layers (that are computationally relevant) between the user interface and the pure power of the hardware. Some of the said abstraction layers are (emulated) hardware, drivers, IO interfaces, etc. Top-notch virtualization solutions like Xen probably eliminate a few of these complexities, but I still wonder how efficiency is achieved in these environments; and whether manageable cloud servers are really worth the performance price.

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  • Accessing or Resetting Permissions of a Mounted Registry Hive of a Different User / From a Different System

    - by Synetech
    I’m currently stuck using my backup system until I can replace my dead motherboard. In the meantime, I have put my hard-drive in this system so that I can access my files and keep working on the backup system. Fortunately, I don’t have a permission issues with the files (the partitions are FAT32). The issue I’m having is with the registry. I need to import some of my settings from the hives of my (old? normal?) installation of Windows into the one I’m currently using. Settings from the system hives (SYSTEM, SOFTWARE, etc.) are fine, but the user hive is giving me trouble. I’ve copied the NTUSER.DAT file from my other drive and mounted it with the reg command. Most of the keys (eg Software) are fine and I can access them without problem, but some of them (particularly the Identities key where Outlook Express settings are stored) complains that it cannot be opened. If I open the permissions dialog, I get an error about being unable to view the current permssions. If I then ignore it and try to take ownership of the key and it’s subkeys, I get an access-denied error. If I then add permissions for my user account on this system, I get an error, however I am then able to see the subkeys and values of the key. If I then try to access the subkeys, I get the same original errors. If I repeat the process for each subkey, I can see their values and subkeys, and so on, but of course this gets to be incredibly annoying and time-consuming (especially since the Identities key has a lot of subkeys). Is there an easier/temporary/more correct way to dump a key so that I can import it into my backup system?

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  • Western Digital External 1TB HDD, possible to mount internally?

    - by JL
    I have an external WD MyBook. it has USB, Firewire and e-sata connectors, but I would like to mount it internally in my desktop system instead for extra performance, and I'm also considered about how long it will last externally. Does anyone know if this is possible? Has anyone done this with success? I would have to remove it from the existing external chasis, but before I mess around with this, I would like to know if its even possible. Thanks in advance

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  • Am I safe on Windows if I continue like this?

    - by max
    Of all the available tons of anti-malware software for Windows all over the internet, I've never used any paid solution(I am a student, I have no money). Since the last 10 years, my computers running Windows have never been hacked/compromised or infected so badly that I had to reformat them(of course I did reformat them for other reasons). The only program I have for security is Avast Home Edition, which is free, installed on my computers. It has never caused any problems; always detected malware, updated automatically, has an option to sandbox programs and everything else I need. Even if I got infected, I just did a boot-time scan with it, downloaded and ran Malwarebytes, scanned Autoruns logs, checked running processes with Process Explorer and did some other things and made sure I cleaned my computer. I am quite experienced and I've always taken basic precautions like not clicking suspicious executables, not going to sites which are suspicious according to WOT, and all that blah. But recently I've been doing more and more online transactions and since its 2012 now, I'm doubtful whether I need more security or not. Have I been just lucky, or do my computing habits obviate the need to use any more(or paid) security software?

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  • Is 768Mb RAM @ 333Mhz faster or slower than 512Mb RAM @ 400Mhz?

    - by Peter
    I have a simple question, but am not a hardware specialist. I have a small low-budget server with 512 Mb SD RAM, 400 Mhz. I have an extra 256 lying around, but it's 333 Mhz. I know I can add it to the system, and that it would automatically adjust the 400Mhz to 333Mhz. But my question is, which is faster/better for performance: 512 at 400Mhz, or 768 at 333Mhz?

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  • Hard drive causing BSOD

    - by JoshIrving
    I've come across a problem after building my new PC and installing a clean Windows 7. I originally planed on a RAID 1 or 0 but after further research I decided against it. So I was left with two 1TB Western Digital Black SATA 6Gb/s hard drives. My plan now was to use my second hard drive as a backup (using Windows Backup or 3rd party software). I set both hard drives to AHCI in the BIOS and installed Windows 7. I went through the lengthy process of downloading and installing each driver manually (latest versions), using the motherboard disk for a list of what I need. After a few restarts and before installing any software, I took an image backup onto DVD and the second hard drive. First witnessed the problem during the first scheduled Windows backup. The progress bar froze at about 70% (doc backup done, image backup in progress). It stayed still for 2 hours until it blue screened. Next time the backup froze, I tried shutting down. It logged me out and got stuck at the last step ("Shutting down" and blue spinner) for an hour, until I hard shutdown. I later realised this hasn't got anything to do with the backup. I ended up blue screening on almost every shut down (same place). Turns out, it's because of the second hard drive spinning down or turning off. The computer will now shutdown properly, as long as I remember to read or write to the second drive before executing shutdown. I've now set "Turn off hard disk after: Never" - No problems, so far. Do I have dodgy hard drive(s) or should I investigate the POWER_STATE_DRIVER_FAILURE BSOD - can it be a driver issue? AHCI?

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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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  • Best format for hard drive for Windows and Mac?

    - by Neil
    I have a 500 GB USB External Hard Drive. I need four partitions on it, for the following purposes: 160 GB for a bootable backup of my Mac. 160 GB for a bootable backup of my Windows. 11 GB for a bootable Snow Leopard Install Disk Rest as for file storage. Now I need a partition table which will get recognised on both Windows and Mac, without needing extra software on Windows, which will let me keep bootable copies of both OS'es, but let me access the file storage from both OS'es. Currently, I have a GUI Partition Table, with Mac OS Extended (Journaled) Partitions for the two backups, Mac OS Extended for the Install Disk, and NTFS for the file storage. While this gets recognised perfectly on my Mac, thanks to an NTFS for Mac driver from Paragon, when connected to Windows, the drive is detected by the machine (listed in Safely Remove USB), but not recognised in Windows Explorer unless I install MacDrive, which is not feasible for me to install on public Windows Machines I might wanna access my storage area on. Can someone recommend the best combination of formats and software/drivers to get this done seamlessly?

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  • Can I boot my notebook via eSata pci-xpress card?

    - by OliverS
    I would like to boot directly from an external hard disk to improve performance over my internal notebook hard disk. My notebook has no native eSata jack but a pci express card. As my BIOS doesn't support the card on boot time so no way directly booting it. My question is, is it possible to work around this issue by using an USB stick or similar with a boot loader like grub and if so, will this only work for Linux or Windows as well?

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