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  • In Windows 7 power management, is it possible to set different sleep settings for different SATA disks?

    - by Ben Voigt
    I'm having an issue with Windows 7 either freezing up or generating a BSOD coming out of sleep. I suspect that it is related to my boot/OS drive, an OCZ Vertex SE SSD, because numerous other Vertex users have reported sleep problems. Notably, if I put the computer to sleep, it almost always wakes correctly. If it goes to sleep after a timeout, it almost always BSODs. I disabled timed sleep and now it freezes when left unattended. My next step is to disable "Put hard disks to sleep after X minutes", but I'd like to change this setting only for the SSD and not for the rotating data disks, which I would like to spin down normally. Does anyone know a place to configure sleep on a per-disk basis? I don't need to set different timeouts on different disks (although that would be nice), simply setting "this disk sleeps" and "sleep is disabled for this disk" would be great. Additional system information: Windows 7 Ultimate x64, Core i5 - P55 chipset, Intel RST drivers are installed. One SSD, two rotating HDD, and a DVD-RW drive are all connected to the Intel SATA ports. I could potentially move some of these to my motherboard's other SATA controller if that would help.

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  • Case Management Model and Notation (CMMN) by Torsten Winterberg

    - by JuergenKress
    The beta version of the current working draft of the new OMG paper can be found here. This figure 72 shows an example, how a case (here: writing a document) can be modeled using CMMN elements: Table 43 explains, where the different types of decorators can be used: The meaning if the elements and the decorations are explained in the CMMN beta document. Read the full article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: ACM,BPM,Torsten Winterberg,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Brief material on C++ object-lifetime management and on passing and returning values/references

    - by dsign
    I was wondering if anybody can point to a post, pdf, or excerpt of a book containing the rules for C++ variable life-times and best practices for passing and returning function parameters. Things like when to pass by value and by reference, how to share ownership, avoid unnecessary copies, etc. This is not for a particular problem of mine, I've been programming in C++ for long enough to know the rules by instinct, but it is something that a lot of newcomers to the language stumble with, and I would be glad to point them to such a thing.

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  • Game State / Screen Management

    - by Ashylnn Mac
    What's the best way to handle game states / screens? My problem is this: PlayGameScreen adds a new InventoryGameScreen to the game during it's update. This immediately adds InventoryGameScreen to the array of GameScreens. That's throwing an exception when iterating over the array that the contents of the array have changed. Should I have two more arrays, like screensToBeAdded and screensToBeRemoved and do all the processing for them at the end of the game loop after drawing all the other screens?

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  • How to tune system settings for mongoDB on Linux?

    - by jsh
    Trying to squeeze a lot out of one question here -- please bear with me. Although the MongoDB man pages make several useful recommendations about system settings like ulimit (http://docs.mongodb.org/manual/reference/ulimit/), and other production factors (http://docs.mongodb.org/manual/administration/production-notes/) they seem mysteriously silent on things like virtual memory and swap settings. The closest we get to a hint is that "...the operating system’s virtual memory subsystem manages MongoDB’s memory..." (http://docs.mongodb.org/manual/faq/fundamentals/#does-mongodb-require-a-lot-of-ram). Running the same job - high writes and high reads on about 10,000,000 records in a single collection -- on my 4-processor, 4GB RAM macbook and an 8-core ubuntu box with 64GB RAM I saw dramatically WORSE read performance on the linux box with factory settings, and could hear the disk constantly spinning, indicating high I/O and presumably swapping. Yes, other things were happening on the box, but there was plenty of free RAM, disk space, etc.; furthermore, I did not see evidence that Mongo was expanding to take advantage of all that free RAM as it is touted to do. Linux box default settings were as follows: vm.swappiness =60 vm.dirty_background_ratio = 10 vm.dirty_ratio = 20 vm.dirty_expire_centisecs =3000 vm.dirty_writeback_centisecs=500 I hazarded some guesses looking at docs and blogs for other types of databases (Oracle, MYSQL, etc.), experimented, and adjusted as below. vm.swappiness=10 vm.dirty_background_ratio=5 vm.dirty_ratio=5 vm.dirty_writeback_centisecs=250 vm.dirty_expire_centisecs=500 I saw some immediate apparent improvements in read time. However, when I ran my test jobs again, read performance continued to be painfully sluggish during heavy writes. Then, I REBUILT the collection from an available data source - and suddenly I can read at 1ms or less per record WHILE doing the write job! So the question is really two-fold: 1) What are appropriate VM settings for MongoDB on Linux? 2) (bonus) Does Mongo do some checking or optimization with the OS while data is being built? In other words, if I have built a large data set with suboptimal VM or I/O settings, does Mongo make assumptions during the memory-mapping process that will fail to take advantage of optimizations down the road? Obviously I don't fully grok memory mapping under the hood (I was hoping I wouldn't have to). Any help appreciated...thanks! -j

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  • Fail2ban memory usage

    - by ltsstar
    Since my server is under a sustain DNS amplification attack (DDOS), I configured fail2ban and initially my outgoing traffic dropped markedly. Anyway, after a few hours (mostly +10), fail2ban uses about 75% ram and seems to be crashed in some way, because the outgoing traffic raises imediatly after. When I searched the web for the memory problem, I found some people complaining about high fail2ban memory usages as well. But the recommended solution, to insert an ulimit command into a fail2ban config file, did not change that much for me.

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  • NK2 files doesn't keep the email addresses in memory

    - by r0ca
    When I send an email to someone outside the firm, when I only type the first letters of its name (Contact), I get the auto-suggest of the "Already-sent" users. So now, since a few days, the emails are not kept in memory by Outlook (NK2 file). I see that that file is only 2kb and on my old machine, it's almost 200kb (So a lot more email addresses kept in memory) Should I just rebuilt the Outlook profile or the whole Windows Profile? A simple Outlook reinstall or to build a new PC?

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  • Online Reputation Management - The Basics

    Bad publicity is just a reality of doing business these days, especially for any company that is even moderately in the public eye. With hundreds of television channels, a print media network larger than the entire European Union and the Internet, negative comments are hurled at everyone from the Pope to Oprah.

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  • SQL Server Central Webinar Series #19: Proactive Data Growth Management

    Our 19th webinar will feature Brad McGehee talking about storage challenges, costs, and potential solutions for better managing your data. Tuesday, June 12, at 4:00pm GMT. What are your servers really trying to tell you? Find out with new SQL Monitor 3.0, an easy-to-use tool built for no-nonsense database professionals.For effortless insights into SQL Server, download a free trial today.

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  • Management - Level 9 in the Stairway to Reporting Services

    In the last article of the series, you will learn how to manage your reports once you've finished development, including how to use the Report Manager, deploy reports, and send reports to the appropriate end users. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • XNA Monogame GameState Management not deserilaizing

    - by Pectus Excavatum
    I am having some trouble serializing/deserializing in a little game I am doing to teach myself monogame. Basically, I am using the gamestatemnanagement resources common to monogame (screen manager etc). Then I am serializing my screen manager component and all associated screens in the OnDeactivated method: protected override void OnDeactivated(Object sender, EventArgs args) { foreach (GameplayScreen screen in mScreenManager.GetScreens()) { DataManager.SaveData(screen.Level.LevelData); } mScreenManager.SerializeState(); } The Save data bit is to do with something else. Then I then override OnActivated to de serialize protected override void OnActivated(Object sender, EventArgs args) { //System.Diagnostics.Debug.WriteLine("here activating"); mScreenManager.DeserializeState(); } However, when this runs it just loads a blank screen - it goes into the game initialize and the game draw method, but doesnt go down into the screens initialize or draw methods. I have no idea why this might be - any help would be greatly appreciated. I am not the only one who has encountered this - I found this post also - https://monogame.codeplex.com/discussions/391117

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  • Active Directory Management with PowerShell in Windows Server 2008 R2

    One of the first things you notice with Windows Server 2008 R2 is that PowerShell 2.0 has become central to the admin function There is a powerful Active Directory module for Powershell that contains a provider and cmdlets that are designed to allow you to manage Active Directory from the command line. Now, you can also use versions for previous versions of Windows Server.

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  • Get script for every action in SQL Server Management Studio

    I am always conscious to keep a record of all operations performed on my database servers. Operations through T-SQL in an SSMS query pane can easily be saved in query files. For table modifications through SSMS designer I have predefined setting to generate T-SQL scripts. However there are numerous database and server level tasks that I use the SSMS GUI and I would like to have a script of these changes for later reference. Examples of such actions through the SSMS GUI are backup/restore, changing compatibility level of a database, manipulating permissions, dealing with database or log files or creating/manipulating any login/user. I am looking for any way to generate T-SQL code for such actions, so that it may be kept for later reference

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  • Recommendations for remote server management software, similar to Puppet or Canonical Landscape?

    - by rmh
    We currently have five Ubuntu 10.04 LTS servers, and keeping them all up-to-date is starting to be a pain. I've been looking into solutions like Puppet and Canonical Landscape. Out of the two I prefer Puppet -- it would be useful to be able to ensure the permissions of various directories on the machines, and define groups and users on the server which are then propagated to clients. Is there any other software in this vein that I should be taking a look at?

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  • SQL Server Management Studio keyboard shortcuts - Part 1

    As responsibilities are growing every day, a DBA or developer needs to improve his/her productivity. One way to do this is to use as many shortcuts as possible instead of using your mouse and the menus. In this tip we take a look at common tasks you may perform when using SSMS and the associated shortcut keys. SQL Backup Pro SQL Backup Pro was the smartest kid at school. Discover why.

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  • Memory upgrade for Toshiba P20 S203?

    - by pjc50
    I've had an offer of a 256MB PC2700 SODIMM, apparently from an iBook, to upgrade a Toshiba laptop. Is that suitable? I've seen "DDR 266 SODIMM" on sale as the official upgrade memory. How in general should I work this out? I've long since lost track of what memory goes with what system.

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