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  • Migrating from IBM AIX/DB2 Power systems to Oracle Technologies

    - by zeynep.koch(at)oracle.com
    If you are planning to migrate from  IBM DB2 on AIX Power Systems to more open and better-performing computing environment--one that offers enhanced flexibility, clustering, availability, and security, as well as lower maintenance than download this guide that outlines migrating to Oracle Database 11g and Oracle Linux running on Oracle's Sun Fire X4800 server.This guide shows you how to:Move sample applications with an IBM DB2 on an IBM Power System to Oracle Database 11g Release 2Install Oracle Linux and Oracle Database Release 2 on the Oracle's Sun Fire X4800 serverMigrate user databases from the IBM Power System to Oracle's Sun Fire X4800 serverDownload

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  • Case Management API by Koen van Dijk

    - by JuergenKress
    Case Management is a new addition to Oracle BPM in release 11.1.1.1.7 (PS6). This new release contains the Case Management engine, see blog Léon at  http://leonsmiers.blogspot.nl/ for more details.  However, currently this release does not contain a case portal. The case management API's, just like the already existing Oracle BPM API's, help in developing a portal page with relative ease. This blog will use some real life examples from the EURent casemanagement application and portal application developed by Oracle. The Oracle BPM Case Management API is a Java Based API that enables developers to programmatically access the new Case Management functionalities. It is an elaborate API that can access all the functionalities of Oracle Case Management. I will describe two of those functionalities in this blog: retrieving case data as DOM (http://www.w3.org/DOM/) and attaching a document to a case. Libraries First of all when creating a Case Management project you will need to attach the following libraries: These contain all the classes that are in the Case Management API. Service client To do anything with the BPM CaseManagement API in general it is necessary to create a CaseManagementServiceClient Object. The Case Management service client is the central piece of the Case Management API. It can be used to retrieve two different types of services. The first is the case stream service and the case service. The case stream service contains functionality to upload and download documents to and from a case. The second one is the CaseService. This service contains all the other functionality acting upon a case including but not limited to: Read the complete 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 Technorati Tags: ACM API,adaptive Case Management,BPM,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • SPARC Power Management Article at OTN

    - by nospam(at)example.com (Joerg Moellenkamp)
    My colleague Karoly Vegh pointed in a tweet to a really interesting article about the usage of Power Management of SPARC T-series systems. The article explains how to use the power management, how it works, what it's able to do and how to use it in a dynamic fashion according to anticipated load patterns. You find the article "How to Use the Power Management Controls on SPARC Servers" written by by Bruce Evans, Julia Harper, and Terry Whatley on OTN.

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  • Oracle Leader in Transportation Management

    - by John Murphy
    Oracle Named a Leader in the Transportation Management Systems Market by Leading Analyst Firm Redwood Shores, Calif. – October 15, 2012 News Facts Gartner, Inc. has placed Oracle Transportation Management in the Leaders Quadrant of its 2012 report, “Magic Quadrant for Transportation Management Systems (TMS).” (1) Gartner Magic Quadrants position vendors within a particular market segment based on their completeness of vision and ability to execute on that vision. According to the report, “Multiple subcomponents make up a comprehensive TMS across planning (for example, load consolidation, routing, mode selection and carrier selection) and execution (for example, tendering loads to carriers, shipment track and trace, and freight audit and payment).” Built on modern, flexible, Internet based architecture, Oracle Transportation Management is a global transportation and logistics operations system that allows companies to minimize cost, optimize service levels, support sustainability initiatives, and create flexible business process automation within their transportation and logistics networks. With a share of 26% of worldwide software revenue for 2011, Oracle is also number one in TMS vendor share according to Gartner’s report, “Market Trends: A Golden Opportunity in the Transportation Management System Market, 2012 – 2016.” (2) Supporting Quote “Shippers and logistics service providers face increasingly complex challenges as they try to reduce costs, secure capacity and improve overall freight efficiency,” said Derek Gittoes, vice president, logistics product strategy, Oracle. “We believe our high standing in both Gartner reports is a reflection of Oracle’s commitment to addressing these challenges by delivering the industry’s broadest and deepest transportation management platform. With a flexible and modern platform, we are able to support customers with both basic transportation needs, as well as those with highly complex logistics requirements.” Supporting Resources Magic Quadrant for Transportation Management Systems Market Trends: A Golden Opportunity in the Transportation Management System Market, 2012 – 2016 Oracle Transportation Management (1) Gartner, Inc., “Magic Quadrant for Transportation Management Systems,” by C. Dwight Klappich, August 23, 2012 (2) Gartner, Inc., “Market Trends: A Golden Opportunity in the Transportation Management System Market, 2012 – 2016,” by Chad Eschinger and C. Dwight Klappich, September 24, 2012. About Oracle Applications Over 65,000 customers worldwide rely on Oracle's complete, open and integrated enterprise applications to achieve superior results. Oracle provides a secure path for customers to benefit from the latest technology advances that improve the customer software experience and drive better business performance. Oracle Applications Unlimited is Oracle's commitment to customer choice through continuous investment and innovation in current applications offerings. Oracle's next-generation Fusion Applications build upon that commitment, and are designed to work with and evolve Oracle's Applications Unlimited offerings. Oracle's lifetime support policy helps ensure customers will continue to have a choice in upgrade paths, based on their enterprise needs. For more information on the latest Oracle Applications releases go towww.oracle.com/applications About Oracle Oracle engineers hardware and software to work together in the cloud and in your data center. For more information about Oracle (NASDAQ:ORCL), visit www.oracle.com. Trademarks Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. ###   Karen [email protected] Simon JonesBlanc & [email protected]

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  • Why Ultra-Low Power Computing Will Change Everything

    - by Tori Wieldt
    The ARM TechCon keynote "Why Ultra-Low Power Computing Will Change Everything" was anything but low-powered. The speaker, Dr. Johnathan Koomey, knows his subject: he is a Consulting Professor at Stanford University, worked for more than two decades at Lawrence Berkeley National Laboratory, and has been a visiting professor at Stanford University, Yale University, and UC Berkeley's Energy and Resources Group. His current focus is creating a standard (computations per kilowatt hour) and measuring computer energy consumption over time. The trends are impressive: energy consumption has halved every 1.5 years for the last 60 years. Battery life has made roughly a 10x improvement each decade since 1960. It's these improvements that have made laptops and cell phones possible. What does the future hold? Dr. Koomey said that in the past, the race by chip manufacturers was to create the fastest computer, but the priorities have now changed. New computers are tiny, smart, connected and cheap. "You can't underestimate the importance of a shift in industry focus from raw performance to power efficiency for mobile devices," he said. There is also a confluence of trends in computing, communications, sensors, and controls. The challenge is how to reduce the power requirements for these tiny devices. Alternate sources of power that are being explored are light, heat, motion, and even blood sugar. The University of Michigan has produced a miniature sensor that harnesses solar energy and could last for years without needing to be replaced. Also, the University of Washington has created a sensor that scavenges power from existing radio and TV signals.Specific devices designed for a purpose are much more efficient than general purpose computers. With all these sensors, instead of big data, developers should focus on nano-data, personalized information that will adjust the lights in a room, a machine, a variable sign, etc.Dr. Koomey showed some examples:The Proteus Digital Health Feedback System, an ingestible sensor that transmits when a patient has taken their medicine and is powered by their stomach juices. (Gives "powered by you" a whole new meaning!) Streetline Parking Systems, that provide real-time data about available parking spaces. The information can be sent to your phone or update parking signs around the city to point to areas with available spaces. Less driving around looking for parking spaces!The BigBelly trash system that uses solar power, compacts trash, and sends a text message when it is full. This dramatically reduces the number of times a truck has to come to pick up trash, freeing up resources and slashing fuel costs. This is a classic example of the efficiency of moving "bits not atoms." But researchers are approaching the physical limits of sensors, Dr. Kommey explained. With the current rate of technology improvement, they'll reach the three-atom transistor by 2041. Once they hit that wall, it will force a revolution they way we do computing. But wait, researchers at Purdue University and the University of New South Wales are both working on a reliable one-atom transistors! Other researchers are working on "approximate computing" that will reduce computing requirements drastically. So it's unclear where the wall actually is. In the meantime, as Dr. Koomey promised, ultra-low power computing will change everything.

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  • Calculating the "power" of a player in a "Defend Your Castle" type game

    - by Jesse Emond
    I'm a making a "Defend Your Castle" type game, where each player has a castle and must send units to destroy the opponent's castle. It looks like this (and yeah, this is the actual game, not a quick paint drawing..): Now, I'm trying to implement the AI of the opponent, and I'd like to create 4 different AI levels: Easy, Normal, Hard and Hardcore. I've never made any "serious" AI before and I'd like to create a quite complete one this time. My idea is to calculate a player's "power" score, based on the current health of its castle and the individual "power" score of its units. Then, the AI would just try to keep a score close to the player's one(Easy would stay below it, Normal would stay near it and Hard would try to get above it). But I just don't know how to calculate a player's power score. There are just too many variables to take into account and I don't know how to properly use them to create one significant number(the power level). Could anyone help me out on this one? Here are the variables that should influence a player's power score: Current castle health, the unit's total health, damage, speed and attack range. Also, the player can have increased Income(the money bag), damage(the + Damage) and speed(the + speed)... How could I include them in the score? I'm really stuck here... Or is there an other way that I could implement AI for this type of game? Thanks for your precious time.

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  • Linux kernel regression on power usage

    - by dago
    Webupd8 reported this power management fix for the 2.6.38 Linux kernel regression: Add the following to the boot grub line "pcie_aspm=force" My question - how does this suggested fix differ from this hint from powertop: Suggestion: Enable Device Power Management by pressing the P key, which execute the following action: find /sys/devices/pci* -path "*power/control" -exec bash -c "echo auto > '{}'" \;

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  • How to deal with project managers who micromanage?

    - by entens
    Perhaps I'm just naive, but when I try to decipher the wall of tasks I'm targeted to do over the course of a week, I just can't help but think whoever builds the project schedule needs to get some remedial training on basic project management. For example, I am assigned 13 tasks today, the shortest lasting .13 days (default time metric in Microsoft Project), and the longest lasting .75 days. I can't help but think that it is blatant micromanagement scheduling projects in sub 10 minute intervals. The effects of management are becoming evident in slipped tasks, resource assignment exceeding capacity by a factor of two at some points in time, and spending more time clearing tasks and figuring out what comes next than actually doing work. How can I convince the project manager to create tasks with larger duration and to see the larger picture?

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  • Tool to convert Textures to power of two?

    - by 3nixios
    I'm currently porting a game to a new platform, the problem being that the old platform accepted non power of two textures and this new platform doesn't. To add to the headache, the new platform has much less memory so we want to use the tools provided by the vendor to compress them; which of course only takes power of two textures. The current workflow is to convert the non power of tho textures to dds with 'texconv', then use the vendors compression tools in a batch. So, does anyone know of a tool to convert textures to their nearest 'power of two' counterparts? Thanks

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  • Function Folding in #PowerQuery

    - by Darren Gosbell
    Originally posted on: http://geekswithblogs.net/darrengosbell/archive/2014/05/16/function-folding-in-powerquery.aspxLooking at a typical Power Query query you will noticed that it's made up of a number of small steps. As an example take a look at the query I did in my previous post about joining a fact table to a slowly changing dimension. It was roughly built up of the following steps: Get all records from the fact table Get all records from the dimension table do an outer join between these two tables on the business key (resulting in an increase in the row count as there are multiple records in the dimension table for each business key) Filter out the excess rows introduced in step 3 remove extra columns that are not required in the final result set. If Power Query was to execute a query like this literally, following the same steps in the same order it would not be overly efficient. Particularly if your two source tables were quite large. However Power Query has a feature called function folding where it can take a number of these small steps and push them down to the data source. The degree of function folding that can be performed depends on the data source, As you might expect, relational data sources like SQL Server, Oracle and Teradata support folding, but so do some of the other sources like OData, Exchange and Active Directory. To explore how this works I took the data from my previous post and loaded it into a SQL database. Then I converted my Power Query expression to source it's data from that database. Below is the resulting Power Query which I edited by hand so that the whole thing can be shown in a single expression: let     SqlSource = Sql.Database("localhost", "PowerQueryTest"),     BU = SqlSource{[Schema="dbo",Item="BU"]}[Data],     Fact = SqlSource{[Schema="dbo",Item="fact"]}[Data],     Source = Table.NestedJoin(Fact,{"BU_Code"},BU,{"BU_Code"},"NewColumn"),     LeftJoin = Table.ExpandTableColumn(Source, "NewColumn"                                   , {"BU_Key", "StartDate", "EndDate"}                                   , {"BU_Key", "StartDate", "EndDate"}),     BetweenFilter = Table.SelectRows(LeftJoin, each (([Date] >= [StartDate]) and ([Date] <= [EndDate])) ),     RemovedColumns = Table.RemoveColumns(BetweenFilter,{"StartDate", "EndDate"}) in     RemovedColumns If the above query was run step by step in a literal fashion you would expect it to run two queries against the SQL database doing "SELECT * …" from both tables. However a profiler trace shows just the following single SQL query: select [_].[BU_Code],     [_].[Date],     [_].[Amount],     [_].[BU_Key] from (     select [$Outer].[BU_Code],         [$Outer].[Date],         [$Outer].[Amount],         [$Inner].[BU_Key],         [$Inner].[StartDate],         [$Inner].[EndDate]     from [dbo].[fact] as [$Outer]     left outer join     (         select [_].[BU_Key] as [BU_Key],             [_].[BU_Code] as [BU_Code2],             [_].[BU_Name] as [BU_Name],             [_].[StartDate] as [StartDate],             [_].[EndDate] as [EndDate]         from [dbo].[BU] as [_]     ) as [$Inner] on ([$Outer].[BU_Code] = [$Inner].[BU_Code2] or [$Outer].[BU_Code] is null and [$Inner].[BU_Code2] is null) ) as [_] where [_].[Date] >= [_].[StartDate] and [_].[Date] <= [_].[EndDate] The resulting query is a little strange, you can probably tell that it was generated programmatically. But if you look closely you'll notice that every single part of the Power Query formula has been pushed down to SQL Server. Power Query itself ends up just constructing the query and passing the results back to Excel, it does not do any of the data transformation steps itself. So now you can feel a bit more comfortable showing Power Query to your less technical Colleagues knowing that the tool will do it's best fold all the  small steps in Power Query down the most efficient query that it can against the source systems.

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  • CTP for Power View and SSAS Multidimensional Cubes

    - by Greg Low
    When Power View appeared, one of the big outcries was "but what about connecting to existing cubes!".Great to see that the SQL Server team have addressed that. A CTP that allows connecting Power View to SSAS Multidimensional cubes is now available:http://blogs.msdn.com/b/analysisservices/archive/2012/11/29/power-view-for-multidimensional-models-preview.aspxHelp the team get this out the door by trying it and providing feedback.

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  • How to do the transition from project manager to product manager? [on hold]

    - by E. Topp
    I'm working as project manager / head of software for a small software company and was working on my own previously to this position. I want to however make the transition to product manager from my current position. You could ask about position differences, pitfalls of using project management processes and decision making as a product manager. What skill sets you need for the product manager job What are the position differences? What are the pitfalls of using project management processes and decision making as a product manager? What skill set is required for the product manager job? Is the transition easier for a project manager?

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  • Ubuntu 12.04 does not power off

    - by G K
    I'm not able to power off Ubuntu, which was working fine a couple of days ago. When I click shut down, a blank screen appears and stays like that forever. It does not power off by itself and I'm forced to physically power off using the power button. I've even tried 'sudo shutdown now' and 'sudo shutdown -h now' and both don't seem to work! Please suggest some fix for this problem. Thanx in advance. Edit: Restart works fine. Also 'sudo poweroff' doesn't work!

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  • Power View Infrastructure Configuration and Installation: Step-by-Step and Scripts

    This document contains step-by-step instructions for installing and testing the Microsoft Business Intelligence infrastructure based on SQL Server 2012 and SharePoint 2010, focused on SQL Server 2012 Reporting Services with Power View. This document describes how to completely install the following scenarios: a standalone instance of SharePoint and Power View with all required components; a new SharePoint farm with the Power View infrastructure; a server with the Power View infrastructure joined to an existing SharePoint farm; installation on a separate computer of client tools; installation of a tabular instance of Analysis Services on a separate instance; and configuration of single sign-on access for double-hop scenarios with and without Kerberos. Scripts are provided for all/most scenarios.

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  • How to use MacBook Pro with external monitor / keyboard / mouse while running on battery only?

    - by Another Registered User
    I'm using my MacBook Pro like a desktop sometimes. But for some reason, when I unplug the Power Supply, it is impossible. The MacBook Pro immediately shuts off. When I turn it on by hitting any key on the external keyboard, it wakes up for about 10 seconds but then goes to sleep again. Sometimes I want to use my MacBook Pro without the Power plugged in to it, just to use the Battery a little bit. And also sometimes when someone else needs my Power Supply. I couldn't find an option in the system preferences. Is there an trick how to get that work?

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  • What actions does Ubuntu trigger when battery is low?

    - by blueyed
    When the battery is low, the screen gets dimmed after a few seconds already. This appears to be some special power-saving mode, and might be related to the time in org.gnome.settings-daemon.plugins.power.time-low (1200 seconds (20 minutes) the default). While this seems to get triggered by gnome-settings-daemon, I wonder what else Ubuntu does when this happens (e.g. via DBus listeners), or other event listeners that look for a "low battery" state. It seems like something in this regard causes Ubuntu / X / the system to behave more sluggish afterwards (when the laptop is on AC again), and I would like to look into what might be causing this. I could not find anything related via dconf-editor, e.g. in org.gnome.settings-daemon.plugins.power. It appears to get setup via idle_configure in plugins/power/gsd-power-manager.c, but it's probably something more related to something that listens on the DBus interface, which gets notified via e.g.: if (!g_dbus_connection_emit_signal (manager->priv->connection, NULL, GSD_POWER_DBUS_PATH, "org.freedesktop.DBus.Properties", "PropertiesChanged", props_changed, &error)) I could imagine that some "power saving" property gets set, but not unset when AC is available anymore and/or the battery is not low anymore. I have looked at the CPU governor setting (/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor), but it was ondemand. I am using gnome-settings-daemon with awesomeWM on Ubuntu 14.04. gnome-settings-daemon=3.8.6.1-0ubuntu11.1 I've also compared gsd's plugins/power/gsd-power-manager.c with the one from Debian's gnome-settings-daemon-3.12.1, but could not find anything obvious that might have been fixed/changed in this regard. I have managed to trigger the gnome-power-manager's gnome-settings plugin (which dims the screen etc), by patching upower and use it after killing the system's upower daemon. (note that it's probably only energy that is being used by gpm to calculate it by itself). It does not make the system become sluggish.. OTOH I have not heard the speaker's beeping, which might come from the BIOS, which might be involved here, too - or other programs using the kernel's interface on /sys/class/power_supply/BAT0/. --- src/linux/up-device-supply.c.orig 2014-06-07 16:48:32.735920661 +0200 +++ src/linux/up-device-supply.c 2014-06-07 16:48:39.391920525 +0200 @@ -821,6 +821,9 @@ supply->priv->energy_old_first = 0; } + percentage = 3.1f; + time_to_empty = 3*60; + energy = 5; g_object_set (device, "energy", energy, "energy-full", energy_full,

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  • How can we unify business goals and technical goals?

    - by BAM
    Some background I work at a small startup: 4 devs, 1 designer, and 2 non-technical co-founders, one who provides funding, and the other who handles day-to-day management and sales. Our company produces mobile apps for target industries, and we've gotten a lot of lucky breaks lately. The outlook is good, and we're confident we can make this thing work. One reason is our product development team. Everyone on the team is passionate, driven, and has a great sense of what makes an awesome product. As a result, we've built some beautiful applications that we're all proud of. The other reason is the co-founders. Both have a brilliant business sense (one actually founded a multi-million dollar company already), and they have close ties in many of the industries we're trying to penetrate. Consequently, they've brought in some great business and continue to keep jobs in the pipeline. The problem The problem we can't seem to shake is how to bring these two awesome advantages together. On the business side, there is a huge pressure to deliver as fast as possible as much as possible, whereas on the development side there is pressure to take your time, come up with the right solution, and pay attention to all the details. Lately these two sides have been butting heads a lot. Developers are demanding quality while managers are demanding quantity. How can we handle this? Both sides are correct. We can't survive as a company if we build terrible applications, but we also can't survive if we don't sell enough. So how should we go about making compromises? Things we've done with little or no success: Work more (well, it did result in better quality and faster delivery, but the dev team has never been more stressed out before) Charge more (as a startup, we don't yet have the credibility to justify higher prices, so no one is willing to pay) Extend deadlines (if we charge the same, but take longer, we'll end up losing money) Things we've done with some success: Sacrifice pay to cut costs (everyone, from devs to management, is paid less than they could be making elsewhere. In return, however, we all have creative input and more flexibility and freedom, a typical startup trade off) Standardize project management (we recently started adhering to agile/scrum principles so we can base deadlines on actual velocity, not just arbitrary guesses) Hire more people (we used to have 2 developers and no designers, which really limited our bandwidth. However, as a startup we can only afford to hire a few extra people.) Is there anything we're missing or doing wrong? How is this handled at successful companies? Thanks in advance for any feedback :)

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  • Company wants to write custom project management tool, rather then use third party product.

    - by Jason Evans
    At the company I work, we are really wanting to get into the agile methodology for developing software. One thing that I'm not excited about is the fact that management wants us to build a custom project management feature inside the company's Intranet. I think this is a total waste of time. There are many great third party tools available (e.g. Axosoft OnTime) that can do everything we need, and more. For how much development time it would cost us to build our own project management module, we could buy numerous licences for a third party product. One concern is that, whilst we are writing code for a client, and using our custom Intranet project management module, we find bugs in the module that need fixing ASAP. That means having to stop work on the client code to fix the Intranet. That just puts shivers down my spine. Another worry I have is lack of functionality. This custom module is going to be so basic, that it will just feel really crap to use. That might sound a bit snooty, but for goodness sake, many third party tools are so feature rich, that the idea of having to write our own tool makes feel very uneasy. In fact, I can't be bothered. What do you guys think? I'm going to raise this issue with my boss, since I feel it's such an important topic to talk about. EDIT: Thanks for the great responses, much appreciated. To summarize some of them: Money Naturally my boss does want to save money, by not forking out a few hundred £'s for licences. However, for us to write a custom tool, it will take x number of days, multiplied by approx £500, which is our costs. I don't see the business value in this. Management have mentioned that they want to sell the Intranet as a product in the future, but it's so custom to our needs (and downright basic), that in order to give it to another client, I can see us having to fork a version of the code and rebuild the majority of it anyway. So it's not like we're gaining anything there in reuse. Features Having our own custom module means not feature bloat - only the functionality we require will be in the product. My issue is that there are plenty of free, open-source project management tools out there with minimal features already. So even if cost is an issue, we could look into open-source. Again it all boils down to the fact that I don't see the point in writing a project management tool in this day and age. It's a bit like writing your own web browser - why?, what's the point? Although management are asking for this tool, just because they are, it does not mean I'm going to please them and do it just because they asked for it. If something does not make sense, then I will raise it as a concern. At the end of the day, it's the developers who write the code, it's the developers who make money for a business. Thus, as far I'm concerned, the devs have a very big role in deciding how a company should manage projects and what tools are used. "I am Spartan, argh!" :) Hmm, I've not been able to make this question a wiki for some reason, thus I'm going to have to pick an answer to accept. Cheers. Jas.

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  • Using an old PC case and power supply as a HDD Enclosure?

    - by mexiq
    I have 5 HDD and my computer is not handling the situation very well. hehe There are some towers that I can buy to put 4 of my drives out, but I'm thinking that I could use the power source of a failed computer I have and use it to power the 4 (or at least 3) of the drives. The data cables (SATA) will remain connected to the working computer (so no USB solution). The problem is that the power source will not work unless it is connected to the failing computer motherboard. Is there any way I could use the power source without plunging it to the old motherboard? Any "HOW-TO" links may be useful as well.

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  • P4 vs. i3/i5 *T in power consumption and performance [migrated]

    - by Walter Zomb
    I am running an Intel P4 prescott with HT on my home server (linux file server on encrypted disks on software-RAID5 and virtualisation host for three further machines). The performance for this purpose is really okay. When the system is idle it consumes about 140W power. I am considering buying a new mainboard for an e.g. Intel i3-2100T or an Intel i5-2390T. Both are low power CPUs with a TDP about 40W. Has anyone experiences how much power a recent mainboard with one of these CPUs an 3-4 'green-energy' disks (6W each) consumes? Do I get underneath the 100W threshold? What's about the performance of these low power CPUs? Are they comparable to an Intel P4 with HT? regards, walter

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  • Why does unpartitioned Hitachi HDS5C3020 drive start consuming 50% more power 15 minutes after boot?

    - by Pro Backup
    In a Debian 6.0.6 system there are 74 pieces of 2TB Toshiba DT01ABA200 drives. These drives are identified as Hitachi HDS5C3020BLE630 drives running firmware revision MZ4OAAB0. 64 Drives attached via HP SAS expander cards to an LSI 2008 SAS controller, another 5 drives are connected directly to the mainboard, 4 drives are connected to a Sil based PCI controller and last 1 drive is only powered and has no data cable connected. The controller LSI and Sil card's their onboard BIOS are both disabled and the mpt2sas and sata_sil modules are removed from the Linux debian 2.6.32-5-amd64 #1 SMP Sun Sep 23 10:07:46 UTC 2012 x86_64 GNU/Linux kernel. The mpt2sas module is loaded after boot using a modprobe command in /etc/rc.local. These 74 drives are not partitioned, neither formatted and also not mounted. The system consumes: with 0 drives: 70.6 - 70.9 Watt (also 15 minutes after boot); with 74 drives: 330 - 360 Watt, just after boot (is equivalent to 3.5 - 3.9W per drive in idle state); with 74 drives: 420 - 466 Watt, each time in the 15th minute of uptime (is equivalent to 4.7 - 5.3W per drive in idle state). The drive specification lists 4.7W as read/write, and 3.3W as idle power consumption. The increased power consumption is most likely on the 5V line, because after roughly 1 minute an "over current protection" (OCP) of the power supply (PSU) shuts down the power. The used PSU is a single rail model with an OCP of 122A on the 12V line and 55A on the 5V line. Regression: It doesn't matter whether the drive its APM value is set to disabled or 1 (maximum power saving). The operating system records no read/write activity in /proc/diskstats. The values there are identical (28 read, 0 write operations) as immediately after the modprobe operation. Can't test what happens when booting into the mainboard it's BIOS - to exclude any OS intervention - because the Super Micro X8SI6-F mainboard running firmware 06/27/12 has a bug that incorrectly reads a +74.0 C CPU sensor temperature as "High" in BIOS mode, and shuts down the power after 1 minute. What might be causing the drive read/write activity on all drives in the 15th minute after boot and how to prevent it from happening?

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  • Is the APC BR700G UPS (or similar) compatible with Active PFC power supplies?

    - by David Zaslavsky
    I'm looking at getting a UPS for my home computer. So far the APC BR700G looks very promising, except for one thing: one of the reviews on Newegg says that this UPS does not work with a power supply with Active PFC. Pros: Unit looks great, built well, very heavy, was excited to use it. Cons: Didn't research enough - many newer power supplies like my corsair 750w (and yes dells and other mainstreamers sell them too) that I bought last year have a feature called active pfc (power factor corrected). The signal for this backup battery doesn't fully support that feature and can cause issues. You can find an article on APCs site if you search their user forums for PFC. And the power supply in my computer is, in fact, an Active PFC PSU. I've already found one answer on this site claiming that it's not an issue, that "most quality supplies these days have PFC and work just fine with a UPS." That disagrees with the review on Newegg. Can someone explain this discrepancy? Also, what is it exactly about a UPS that makes it incompatible with an Active PFC PSU? (if anything) Is there some way to tell based on the technical specifications, or do I just have to hunt for reviews online to avoid wasting my money? While any input would be appreciated, I would prefer to get an answer from someone with actual experience with similar UPS's and Active PFC power supplies, who can tell me whether it works or not.

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  • Reseting Macbook Pro keyboard and trackpad's power usage on Windows?

    - by Dan the Man
    I recently installed a utitlity for Windows (ASUS Ai Charger) which modifies the USB ports on the computer to output more power (for charging iPads, etc). The problem is, I believe it is also giving more power to my keyboard and trackpad. And now, neither devices are working at all, yet they work on Mac OS X. So does anyone know the amount of power MacBook Pro (2007) keyboards and trackpads use, and how I can set these settings in Windows 7?

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