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• How to calculate Sin function quicker and more precisely?

  - by user1297181

  I want to calculate y(n)=32677Sin(45/1024•n), where y is an integer and n ranges from 0 to 2048. How can I make this process quicker and more precisely? Now I want to show you a reference answer: Since Sin(a+b)=Sin(a)Cos(b)+Cos(a)Sin(b) And Cos(a+b)=Cos(a)Cos(b)-Sin(a)Cos(b). So I can store Sin(45/1024•1) andCos(45/1024•1) ` only.Then use this formula: Sin(45/1024•2)=Sin(45/1024•1+45/1024•1), Cos(45/1024•2)=Cos(45/1024•1+45/1024•1), .... `Sin(45/1024•n)=Sin(45/1024•(n-1)+45/1024•1) `, `Cos(45/1024•n)=Cos(45/1024•(n-1)+45/1024•1) `, This way maybe quicker without storing large array.

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• Best practices for upgrading user data when updating versions of software

  - by Javy

  In my code I check the current version of the software on launch and compare it to the version stored in the user's data file(s). If the version is newer, then I call different methods to update the old data to the newer data version, if necessary. I usually have to make a new method to convert the data with each update that changes user data in some way, and cannot remove the old ones in case there was someone who missed an update. So the app must be able to go through each method call and update their data until they get their data current. With larger data sets, this could be a problem. In addition, I recently had a brief discussion with another StackOverflow user this and he indicated he always appended a date stamp to the filename to manage data versions, although his reasoning as to why this was better than storing the version data in the file itself was unclear. Since I've rarely seen management of user data versions in books I've read, I'm curious what are the best practices for naming user data files and procedures for updating older data to newer versions.

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• Permissions needed to read event log messages remotely?

  - by Neolisk

  When running under a limited account, local event log messages are displaying fine, for remote computer I am getting this error: The description for Event ID ( xxxxx ) in Source ( yyyyy ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: zzzzz. Same remote computer works fine under domain administrator. I am currently experimenting with just the Event Viewer, by using Run As. Original issue is a PowerShell script which does Get-EventLog. Are there any special permissions that need to be in place to able to read event log messages remotely? Supposedly there is a simple solution in Windows 2008 and higher, i.e. just add user to Event Log Readers group. Is there anything like that for Windows 2003?

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• Multiple URL's going to same page - Kosher for Google?

  - by Ashoka15

  I hear conflicting answers from people about this, and I'm a developer by trade, and my SEO knowledge is not what it should be. Here's my situation: I run a website that lists hotels, restaurants, bars, shops, etc for a small Asian beach town. Lots of establishments here are hotels with a restaurant and bar, as well as restaurants that are also bars. As en example, a Mexican restaurant that also functions as a full cocktail bar. I first set it up so each establishment has one page, but can create multiple pages based on their other areas of business. This forces people to create TWO listings under the same name, and most just add the exact same information onto each page, making things redundant. I am re-arranging the database so that a establishment has only ONE listing (one unique page referenced by the unique code '12345ABCDEF') that is accessible from browsing under "Restaurants" and "Bars", and has the URL structures: site.com/dining/mexican/12345ABCDEF/business-name.html site.com/bars/cocktail_bars/12345ABCDEF/business-name.html I could easily simplify the URL to just the unique code and name: site.com/12345ABCDEF/business-name.html But, I found that Google has parsed by URL structure and lists like this on their SERP: Home > Dining > Mexican With each pointing to the default page for homepage, restaurants and Mexican restaurants. If I simplify the URL structure, will I lose these associations? Could Google also be picking up this structure from my breadcrumb trail at the top of the page? What is the best way to set up URL's on these pages so I am not penalized by Google for having identical information on two URL's, while still being able to have places show up as they did with the old system?

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• Ubuntu does not recognize my built-in monitor.

  - by B3tturTh3nU

  I've recently discovered of a boot problem Ubuntu has with my laptop. I have successfully installed Ubuntu on two other computers, and I've never experienced this problem. What happens is, after the live boot CD loads, the screen goes completely blank. Although, I suspected that there was no problem booting, so I loaded with BIOS only, which worked perfectly fine. Of course, not being very proficient with this, I have no idea what needs to be done to fix the problem. I have switchable graphics cards(the ATI Mobility Radeon HD 5650, and some low-end Intel card), and an Intel i5 quad core processor. I was booting with the Ubuntu 10.10 64 bit desktop distribution. If there's any more information you need from me, please let me know. EDIT: I was able to look into this a bit more, thanks to one of the comments provided, and I have some new information. Ubuntu does seem to be able to recognize both of my graphics cards. The problem I found was that, in the Xorg.0 log, it mentions that there were "no screens found." I'm using a notebook, so the screen is built in. Does anyone know of a way to get Ubuntu to recognize the monitor?

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• Exited Emacs without saving, did it save the file somewhere?

  - by rumtscho

  Hi, I am using Emacs on Windows XP. Had it open to take some notes in a meeting, but forgot to create a file first (the text got created in the usual "scratch" buffer). Then I closed a lot of applications after the meeting, forgetting to save the notes in Emacs :( I know that when I am modifying an existing file, it creates a backup of the old file in the same directory. But I don't know if the information from the scratch buffer is available somewhere after an exit without saving. Do you know if I can restore my information? I haven't shut down/suspended/hybernated the system since, so all temp files should be still accessible.

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• How do I share my iPhoto photos with my ubuntu partition?

  - by Taryn East

  I have a MacBook Pro dual-booted with Snow Leopard and Ubuntu Karmic. I have recently imported hundreds of my photos into iPhoto - but I now want to be able to see them (and use them as desktop/screen saver images) from my Ubuntu partition (ie when the machine is running Ubuntu instead of MacOS). Is there an easy way to do this direct from the iPhoto library or do I have to shift them all out to an external file directory or something? Further edit - just to make it clear: I have already uploaded my photos directly into iPhoto - then spent many days categorising, tagging and uploading to flickr. Unless there's something I'm missing, I'm guessing it's likely too late to do the "don't copy into the iPhoto library" option. Happy to be proven wrong :) Perhaps somebody knows of a way to "export" the library without losing any of the current information - so that I can (from then on) keep the photos in an external library? I don't want to do this, though, if I lose the information that is currently there.

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• What happens if an OpenStack cloud controller dies?

  - by magu

  I've been reading up on OpenStack and how we can re-create an EC2/S3-style cloud for our internal development and I'm having a hard time finding information on how the OpenStack cloud controller provides redundancy of the cloud management services. I know I can setup multiple Swift and Nova nodes, but not a single document/article/howto/wiki contains information on: a) what happens if the cloud controller node dies; and b) how to setup redundant cloud controllers. It seems to me that, although it is massively scalable, there is a big single-point-of-failure built into OpenStack. Can anyone with more experience on OpenStack please shed some light as to how it all works in regards to high-availability?

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• Can't update packages or use Ubuntu Software Center (E: Some index files failed to download. They have been ignored, or old ones used instead.)

  - by user94189

  I get the following errors when trying to run the auto Update Manager Could not initialize the package information An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/ppa.launchpad.net_bugs-sehe_zfs-fuse_ubuntu_dists_precise_main_binary-amd64_Packages, E:The package lists or status file could not be parsed or opened.' When I run sudo apt-get update, I get these errors W: GPG error: http://us.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http://ppa.launchpad.net precise Release: The following signatures were invalid: BADSIG 1FFD34C9EB13C954 Launchpad CoverGloobus W: GPG error: http://ppa.launchpad.net precise Release: The following signatures were invalid: BADSIG 4A67F94CBF965FF5 Launchpad PPA for Happy-Neko W: Failed to fetch http://ppa.launchpad.net/bugs-sehe/zfs-fuse/ubuntu/dists/precise/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/bugs-sehe/zfs-fuse/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/bugs-sehe/zfs-fuse/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead.

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• Partition Alignment Confusion

  - by user170757

  I have a new Samsung 840 250GB SSD on the way, and I want to make sure that everything is running optimally after install. I've spent many frustrating hours on the internet trying to understand how I should align the partitions of the SSD when it arrives (and even how to partition everything; my other drive is a 1TB HDD with files already on it). I'd like to know a foolproof way of setting everything up. Now, the only place I could find the erase block size of the 840 is here: http://thessdreview.com/Forums/ssd-beginners-guide-discussion/3630.htm I simply can't understand why such information isn't made freely accessible by manufacturers! But, anyway, this would suggest the EBS is 1536kb, which seems odd to me. It is to my understanding that you should now align by MiB (usually set at 1MiB). I assume that the figure above should actually be 1536k B=1.5MiB? This seems to suggest the partition alignment will be somewhat non-standard. So my question is: How do I align my partitions given this information? Please bear in mind that I have never used linux before; I'm doing my best to get everything set up so that I can begin to learn but am finding this process incredibly opaque and time consuming. If possible, a step by step guide through GParted would be great; at the moment I'm considering an NTFS partition ~20GB for Windows (playing games), an EXT4 ~20GB for ubuntu (for doing everything else) and a shared documents+games partition for everything else in NTFS file format. I'm not going to have any swap partition and use swap files instead.

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• Serializing Data Structures in C

  - by src

  I've recently read three separate books on algorithms and data structures, tcp/ip socket programming, and programming with memory. The book about memory briefly discussed the topic of serializing data structures for the purposes of storing it to disk, or sending it across a network. I can't help but wonder why the the other two books didn't discuss serialization at all. After an unsuccessful web/book search I'm left wondering where I can find a good book/paper/tutorial on serializing data structures in C? Where or how did you learn it?

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• Execute a Managed bean from a JSF view in WEB-INF folder

  - by JonathanVila

  We are initiating in Spring + Primefaces development and the first problem we have encountered is about storing the xhtml pages into the WEB-INF folder. When we use a faces form in a view located inside the WEB-INF folder, then the commandButton does not execute the managed bean method. Our bean : In fact we think the problem is that with JSF , the pages are rendered using a link to the same page as the action of the form, so if the page is located in WEB-INF it is not public accessible. We know that having all our xhtml views in the web folder instead of WEB-INF actually solves the issue, but we would like to store that pages into WEB-INF. Thank you.

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• Issues with configuration of Apache and mod_auth_sspi

  - by TekiusFanatikus

  I've been able to get this working using XAMP with Apache 2.0.55 and XAMP Apache 2.2.14 without any problems. However, when I attempt to configure our intranet server (Apache 2.0.59), I don't get the same results. The results are that the following variables contain the information desired: $_SERVER["REMOTE_USER"] AND $_SERVER["PHP_AUTH_USER"]. In this case, they are blank. I'm expecting "domain/user_name". Conf file stuff: <Directory "/xxx/xampp/htdocs/"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # #Options Indexes FollowSymLinks Includes ExecCGI Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # #AllowOverride All AllowOverride None # # Controls who can get stuff from this server. # #Order allow,deny #Allow from all Order allow,deny Allow from all #NT Domain Login AuthName "Intranet" AuthType SSPI SSPIAuth On SSPIAuthoritative On SSPIDomain "xxxx" SSPIOfferBasic Off SSPIPerRequestAuth On SSPIOmitDomain Off # keep domain name in userid string SSPIUsernameCase lower Require valid-user </Directory> I would like to note that I've modified the paths to reflect the intranet environment. I'm using the following module: http://sourceforge.net/projects/mod-auth-sspi/ Once the module is installed and the conf file is modified, the intranet environment's server scope isn't populated with the expected variables. Edit #1 <Directory "/path_here"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # #Options Indexes FollowSymLinks Includes ExecCGI Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # #AllowOverride All AllowOverride None # # Controls who can get stuff from this server. # #Order allow,deny #Allow from all Order allow,deny Allow from all #NT Domain Login AuthName "Intranet" AuthType SSPI SSPIAuth On SSPIAuthoritative On SSPIDomain "domain_here" SSPIOfferBasic On SSPIPerRequestAuth On SSPIOmitDomain Off # keep domain name in userid string SSPIUsernameCase lower Require valid-user </Directory>

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• Techniques to Monitor cron tasks?

  - by Tristan Juricek

  Are there good techniques for monitoring cron tasks over a cluster? We're starting to use cron to launch tasks at daily intervals. A few ideas for checking out information: Add special application handling that logs information into some "network aware" place, like a DB Build up a logfile system that transfers the cron log periodically to a central point for processing/querying (along with other possible log files) I'm wondering if people have had success with doing things separately for cron versus other things, or, if the tasks were integrated into a different approach completely. I'm leaning towards #2, but I'd like to know what more experienced folk might try out.

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• what's the difference between Routed Events and Attached Events?

  - by vverma01

  I tried to find through various sources but still unable to understand difference between routed events and attached events in WPF. Most of the places of reference for attached event following example is used: <StackPanel Button.Click="StackPanel_Click"> <Button Content="Click Me!" Height="35" Width="150" Margin="5" /> </StackPanel> Explained as: stack panel do not contain Click event and hence Button.Click event is attached to Stack Panel. Where as msdn says: You can also name any event from any object that is accessible through the default namespace by using a typename.event partially qualified name; this syntax supports attaching handlers for routed events where the handler is intended to handle events routing from child elements, but the parent element does not also have that event in its members table. This syntax resembles an attached event syntax, but the event here is not a true attached event. Instead, you are referencing an event with a qualified name. According to MSDN information as pasted above, the above example of Buttons and StackPanel is actually a routed event example and not true attached event example. In case if above example is truly about usage of attached event (Button.Click="StackPanel_Click") then it's in contradiction to the information as provided at MSDN which says Another syntax usage that resembles typename.eventname attached event syntax but is not strictly speaking an attached event usage is when you attach handlers for routed events that are raised by child elements. You attach the handlers to a common parent, to take advantage of event routing, even though the common parent might not have the relevant routed event as a member. A similar question was raised in this Stack Overflow post, but unfortunately this question was closed before it could collect any response. Please help me to understand how attached events are different from routed events and also clarify the ambiguity as pointed above.

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• How can I properly create /dev/dvd?

  - by chazomaticus

  Certain programs look for /dev/dvd by default to find DVDs. When I first boot my computer without a DVD inserted, /dev/dvd exists and points to the correct place (/dev/sr0). However, when I insert a DVD, /dev/dvd disappears. I'd like it to stick around so I don't have to navigate to /dev/sr0 in programs that are looking for DVDs. How do I ensure that the /dev/dvd symlink exists and points to the right place? It looks like I can add something to /etc/udev/rules.d/70-persistent-cd.rules. This site gives a couple of examples, but the 70-persistent-cd.rules file says "add the ENV{GENERATED}=1 flag to your own rules", which isn't part of the examples. The man 7 udev page is impenetrable to me, and I'm not convinced the linked page gives 100% of the information I need. So, what can I do on a modern, Ubuntu 12.04 (or later) system to make /dev/dvd always exist and point to the right device? EDIT: Is it as simple as adding ENV{GENERATED}=1 to the rules in the linked page, something like this: SUBSYSTEM=="block", KERNEL=="sr0", SYMLINK+="dvd", GROUP="cdrom", ENV{GENERATED}=1 Is that the right information for modern Ubuntu? What is ENV{GENERATED} doing there, when it wasn't generated, but hand-written?

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• Java Components Landing Page and Documentation Updates

  - by joni g.

  The new Java Components page provides access to the documentation for tools that are available for monitoring, managing, and testing Java applications. Documentation for the new versions of the following tools is available: JavaTest Harness 4.6. The JavaTest harness is a general purpose, fully-featured, flexible, and configurable test harness that is suited for most types of unit testing. See the JavaTest tab for documentation. SigTest 3.1. SigTest is a collection of tools that can be used to compare APIs and to measure the test coverage of an API. See the SigTest tab for documentation. The following tools are part of Oracle Java SE Advanced and Oracle Java SE Suite. Java Mission Control and Java Flight Control 5.4 are supported in JDK 8u20. Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. See the JMC tab for documentation. Advanced Management Console 1.0 is a new tool that is now available. AMC can be used to view information about the Java applets and Java Web Start applications running in your enterprise, and create deployment rules and rule sets to manage the execution of these applications. See the AMC tab for documentation. Usage Tracker tracks how Java Runtime Environments (JREs) are being used in your systems. See the Usage Tracker tab for documentation.

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• SQL Bits 7 - 30th September - 2nd October 2010 in York

  In case you haven't heard we are planning the next SQL Bits event, and today we have released the agenda for Friday & Saturday, a total of 50 sessions covering all aspects of SQL Server with a great selection of speakers. http://www.sqlbits.com/information/Agenda.aspx From our recent announcement - ...SQLBits 7 will take place over three days from Thursday September 30th to Saturday October 2nd in York. Day one will be a training day, featuring in-depth full day seminars by leading SQL Server professionals such as Chris Testa-O’Neill and Chris Webb (see http://www.sqlbits.com/information/TrainingDay.aspx for more details); day two will be a deep-dive conference day with advanced sessions delivered by the best speakers from the SQL Server community; and day three will be the traditional SQLBits community conference day, with a wide range of sessions covered all aspects of SQL Server at all levels of ability. There will be a charge to attend days one and two, but day three, Saturday October 2nd, will as usual be completely free to attend allowing everyone to attend and experience a great day of training even if they have no training budget. Full details available at http://www.sqlbits.com.

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• Entity system in Lua, communication with C++ and level editor. Need advice.

  - by Notbad

  Hi!, I know this is a really difficult subject. I have been reading a lot this days about Entity systems, etc... And now I'm ready to ask some questions (if you don't mind answering them) because I'm really messed. First of all, I have a 2D basic editor written in Qt, and I'm in the process of adding entitiy edition. I want the editor to be able to receive RTTI information from entities to change properties, create some logic being able to link published events to published actions (Ex:A level activate event throws a door open action), etc... Because all of this I guess my entity system should be written in scripting, in my case Lua. In the other hand I want to use a component based design for my entities, and here starts my questions: 1) Should I define my componentes en C++? If I do this en C++ won't I loose all the RTTI information I want for my editor?. In the other hand, I use box2d for physics, if I define all my components in script won't it be a lot of work to expose third party libs to lua? 2) Where should I place the messa system for my game engine? Lua? C++?. I'm tempted to just have C++ object to behave as servers, offering services to lua business logic. Things like physics system, rendering system, input system, World class, etc... And for all the other things, lua. Creation/Composition of entities based on components, game logic, etc... Could anyone give any insight on how to accomplish this? And what aproach is better?. Thanks in advance, HexDump.

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• Now Available:Oracle Utilities Customer Care & Billing Version 2.4.0 SP1

  - by Roxana Babiciu

  We are pleased to announce the general availability of Oracle Utilities Customer Care & Billing 2.4.0 SP1. Key Features & Benefits: Oracle Utilities Customer Care & Billing 2.4.0 SP1 includes several base enhancements and a new licensable module called Customer Program Management. Key base enhancements in this release are: Configuration Migration Assistant (Additional Migration Plans) – Configuration Migration Assistant (CMA) was introduced in Oracle Utilities Application Framework V4.2.0 to supersede the ConfigLab facility. Oracle Utilities Customer Care and Billing now has a large number of migration plans to support migrating administration objects between environments. Encryption – Ability to configure encryption for fields that store sensitive data such as credit card numbers, bank account numbers, social security numbers, and MICR ID. Single Euro Payments Area (SEPA) Direct Debit – Functionality for configuring recurring direct debit payments in accordance with the Single Euro Payments Area (SEPA) initiative. Usage Enhancement for Bill Print – Allows additional information to be captured on a usage request to support billing when meter reads are not obtained from Oracle Utilities Customer Care & Billing but from a meter data management system (e.g. Oracle Utilities Meter Data Management). Preferences Portal – Communication preference zones allowing utilities to track customers’ preferred communication channels for various types of notifications or communications (e.g. phone, SMS, email). More information can be found on OPN!

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• Problem identifying which page/page/function locks whole IIS server

  - by fnovak

  Hello, I have problem identifying which page/page/function locks whole IIS server. Out of the blue whole w3wp.exe jumps to CPU 90-98% usage. I have created 3 different application pools to see which w3wp.exe service locks the processor but I am unable to find out this information. I can only see that 2 of 3 services have 0-5% usage and one is jumping around 90-98% after some while. I think some process/function/redirect/sql is doing this but I would like to eliminate it. So far I am not even able to find the source of the problem. On my local development machine with VS2010 everything works like charm and I am unable to replicate problem. The server is windows 2k3 web server, sql server 2k5 and .net 4.0 Thank you for your help, links or any information on this issue. Fero

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• Dependency error while installing WINE

  - by pgrytdal

  Every time I try to install "WINE" VIA the Software Center on Ubuntu 12.10, I get this error: The following packages have unmet dependencies: wine1.4: PreDepends: dpkg (>= 1.15.7.2~) but 1.16.7ubuntu6 is to be installed Depends: libc6 (>= 2.14) but 2.15-0ubuntu20 is to be installed Depends: wine1.4-amd64 (= 1.4.1-0ubuntu1) but 1.4.1-0ubuntu1 is to be installed Depends: wine1.4-i386 (= 1.4.1-0ubuntu1) but it is not going to be installed When I try installing it VIA the terminal, this is what I get: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine1.4 : Depends: wine1.4-i386 (= 1.4.1-0ubuntu1) but it is not installable Recommends: gnome-exe-thumbnailer but it is not going to be installed or kde-runtime but it is not going to be installed Recommends: ttf-droid Recommends: ttf-mscorefonts-installer but it is not going to be installed Recommends: ttf-umefont but it is not going to be installed Recommends: ttf-unfonts-core but it is not going to be installed Recommends: winbind but it is not going to be installed Recommends: winetricks but it is not going to be installed E: Unable to correct problems, you have held broken packages. how do I fix this?

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• Remembering user credentials in standalone Application

  - by srk

  I'm developing a standalone application using java, I have a Login screen, wherein user enters his username and password. For each instance of the application, user have to enter his credentials. From a usability standpoint, I thought of keeping a remember me check Button. My question is, as I am not using any database, how do I persist the user details. I have some rough thoughts, storing them in a property file and retrieving. I think there may be better approaches than the one I had. Any Ideas and suggestions?

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• Recovering data from failed Raid configuration with 4 drives and two raid sets (Asus P6T / Intel ICH10r)

  - by user56365

  I've added the complete detailed version for my question below for those who can help, but want to quickly summarize my question first. I setup two Raid arrays using (4) WD Raptors, a striped set for the OS and 1+0 set for crucial data. After booting once out of the 50 times a cable fell out, the drive wasn't recognized in the array anymore. After trying to fix it, another drive did the same. I now have two drives remaining, luckily with the parity information. I know the striped set is gone, but I need the data on the other set. Can anyone recommend anything to recover the data, or fix the two drives that doesn't allow the raid controller to recognize the drives, even though they are listed on the utility screen as still apart of the configuration but that they are not found? More Details I recently upgraded to a ASUS P6T motherboard with an Intel ICH10R raid controller and changed my previous 4 drive raid array from strictly a Raid 1+0 set to a Raid 0 for the OS/Page/Scratch drive and a Raid 1+0 set for crucial data. I never had problems after upgrading with my configuration, even when a drive died and was replaced. I managed to rebuild the array fine. Unfortunately this time around, a cable came unattached and I booted my system up until the raid status screen with the degraded error. This shouldn't have been a problem, but after I attached the drive it was no longer recognized as a member in the array. Both drives actually show up as a non-member disk. I've spent a very, very long time online trying to find information or support and haven't had much luck. After spending time trying to scan the drive for errors, damaged partition info, etc.. another drive in the set decided it didn't want to be recognized as a part of the array. At this point, I have two out of the four drives still functioning, but the Raid 1+0 array went from degraded to failed and I must find a way to retrieve that data. I think the two drives still in the array have the parity information because they show up as OS (110GB),BACKUP(80GB) and OS:1(110GB),BACKUP(80GB) under windows data management. The other two are simply 74gb Raw unallocated Is it possible recover the data using those two drive only, and which tool would I use? Could it be a simple partition table or any other error that is repairable with hard drive utilities out there? I know the Raid 0 set is done for, but I would assume because the correct drives failed in a 1+0 config to save the data I can retrieve it some how.

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• Logging upload attempt with proftpd

  - by Amit Sonnenschein

  I have a logging server that i use with external hardware, the idea is that a special hardware is uploading logs about it's operation every few hours and from the server i can do whatever i need to do with the information, the old server was getting a bit too old and i've moved to a new one, i've install lamp,proftpd and ssh (just the same as i had on the old server). now for some reason the logs are not being uploaded and i don't know why. the hardware uses a direct ftp access - i've the proftpd.log and saw that the connection is not being rejected (just to make sure i didn't make a mistake with the user/pass) my problem is that for some reason the upload itself is failing... it might be due to wrong path (as it's hard coded in the hardware) but i can't really know as proftpd wont give me any details.. i've tried to change the loglevel to "debug" thinking it would give me more information but i don't see any change... is there any other way i can make sure proftpd logs EVERTHING ?

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