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• windows 8 + Ubuntu dual boot

  - by Jack Yuan

  I installed Ubuntu 13.04 on Windows 8. Yes I can access both of them, but the process is kind of long. In BIOS, EFI is for Windows 8, legacy support is for Ubuntu. If I choose EFI first, the startup just go straight to Win8 without offering me a choice. If I choose legacy first, the starup will offer me a choice between win8 and ubuntu. But I can only choose Ubuntu. If i choose win8, there will be a mistake(file missing under configuration). That is to say, every time i wanna switch to another OS, I have to go into BIOS and change the priority settings. I heard something about secure boot might be the cause of this situation. But the thing is that there is not even an option called "secure boot" in my BIOS, which means i cannot disable it. All I want is that an option menu appears everytime i turn on my computer so i can easily choose what OS I want for today. Can anyone help me plz? Thank you very much!!

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• Duplicated menu, panel indicators and taskbar

  - by Mykro

  Ubuntu 12.04. The first time I log into Gnome Classic I get a duplicate of every menu, panel indicator and taskbar entry. If I log out and back in again I now have three copies. Log out and log in, four copies and so forth. What would cause this? I can't see any obvious duplicates in the process list: $ ps -A | grep 'gno\|org\|nau' 27439 tty7 00:00:18 Xorg 27610 ? 00:00:00 gnome-keyring-d 27621 ? 00:00:00 gnome-session 27674 ? 00:00:00 gnome-settings- 27709 ? 00:00:07 gnome-panel 27720 ? 00:00:00 gnome-fallback- 27726 ? 00:00:04 nautilus 27736 ? 00:00:00 polkit-gnome-au 28281 ? 00:00:00 gnome-screensav 29016 ? 00:00:00 gnome-terminal 29021 ? 00:00:00 gnome-pty-helpe If it helps, I was recently trying the Nouveau drivers but have now reverted to NVIDIA. Configuration is Separate X Window, Xinerama enabled. Unity is fine, so the problem is limited to the Classic desktop. I haven't had any luck googling these particular symptoms so any tips would be really appreciated. Thanks!

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• ISO 12207 - testing being only validation activity? [closed]

  - by user970696

  Possible Duplicate: How come verification does not include actual testing? ISO norm 12207 states that testing is only validation activity, while all static inspections are verification (that requirement, code.. is complete, correct..). I did found some articles saying its not correct but you know, it is not "official". I would like to understand because there are two different concepts (in books & articles): 1) Verification is all testing except for UAT (because only user can really validate the use). E.g. here OR 2) Verification is everything but testing. All testing is validation. E.g. here Definitions are mostly the same, as Sommerville's: The aim of verification is to check that the software meets its stated functional and non-functional requirements. Validation, however, is a more general process. The aim of validation is to ensure that the software meets the customer’s expectations. It goes beyond simply checking conformance with the specification to demonstrating that the software does what the customer expects it to do It is really bugging me because I tend to agree that functional testing done on a product (SIT) is still verification because I just follow the requirements. But ISO does not agree..

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• Ubuntu apt-get install (--download-only) executed from another machine on behalf of mine

  - by Maroloccio

  I have a server on a network segment with no direct or indirect access to the Internet. I want to perform an: apt-get install <package_name> Is there a way to somehow delegate the process of downloading the required files to another machine by exporting the server configuration so as to satisfy all dependencies while running: apt-get install --download-only <package_name> Can, in effect, apt-get install read a configuration from an exported archive rather than from the local package database? Can the list of packages to be downloaded be retrieved, along with an installation script to perform the installation, instead of the actual packages? (a further level of indirection which would help me schedule this with wget at appropriate times...)

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• F# &ndash; Converting your C# brain to the F# way

  - by MarkPearl

  My brain still thinks in C#!!! I have been looking at F# and trying to figure out the basics of it, but all the time in the back of my mind I am going – what is the C# equivalent to this or that… It’s frustrating because I almost want a F# to C# dictionary the whole time – and simply translate my C# code to F# – which would negate the main motivation for learning F# – as I want learn functional programming - if I was simply doing C# code in a F# syntax I would be gaining nothing! So I am experiencing pain while my brain forms some new neural networks… but luckily I live in a country where we have 11 official spoken languages, and plenty more unofficial languages so I have gone through the pain of learning how to speak a new language before – and I am finding the process is almost identical in learning a programming language that promotes a different way of looking at problems (from Object Orientated to Functional). That beings said… the first thing to learn is the basic syntax… I have searched the web for appropriate places to get a translation – and have been quite disappointed with what is out there for F#. Luckily, OCaml came to the rescue. There are some really good tutorials on getting started with OCaml syntax, one in particular that stood out was the OCamal-Tutorial. What I particularly like about it is that it is doing comparisons between C based languages and OCaml. Give it a read sometime – it’s well worth it and has definitely helped me understand F# a little better.

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• Pull Request Conversations, Inline Diff Enhancements

  [Do you tweet? Follow us on Twitter @matthawley and @adacole_msft] We deployed a new version of the CodePlex website today. Pull Request Conversations Previously, the only way for project members and users who submitted pull requests to converse was via e-mail. This complicated the review process and made conversations isolated and difficult to track. For this release, we’ve added functionality that enables you to have those same conversations within the pull request page. When you view a pull request, you’ll now see “Comments” and “Changes” tabs, with current comments displayed. Inline Diff Enhancements We tweaked the inline diff experience to make it easier to traverse diff blocks. When you open up the inline diff experience, you’ll now see up and down arrows. To move between the diff blocks, you can use those arrows or utilize the available keyboard shortcuts. Lastly, we have also brought the inline diff experience to the source control changes page for project and fork changesets. You can see both enhancements live by viewing the associated pull request or changeset changes on WikiPlex. The CodePlex team values your feedback. We are frequently monitoring Twitter, our Discussions, and Issue Tracker. If you have not visited the Issue Tracker recently, please take a few minutes to suggest or vote on a feature you would like to see implemented.

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• How do you plan your asynchronous code?

  - by NullOrEmpty

  I created a library that is a invoker for a web service somewhere else. The library exposes asynchronous methods, since web service calls are a good candidate for that matter. At the beginning everything was just fine, I had methods with easy to understand operations in a CRUD fashion, since the library is a kind of repository. But then business logic started to become complex, and some of the procedures involves the chaining of many of these asynchronous operations, sometimes with different paths depending on the result value, etc.. etc.. Suddenly, everything is very messy, to stop the execution in a break point it is not very helpful, to find out what is going on or where in the process timeline have you stopped become a pain... Development becomes less quick, less agile, and to catch those bugs that happens once in a 1000 times becomes a hell. From the technical point, a repository that exposes asynchronous methods looked like a good idea, because some persistence layers could have delays, and you can use the async approach to do the most of your hardware. But from the functional point of view, things became very complex, and considering those procedures where a dozen of different calls were needed... I don't know the real value of the improvement. After read about TPL for a while, it looked like a good idea for managing tasks, but in the moment you have to combine them and start to reuse existing functionality, things become very messy. I have had a good experience using it for very concrete scenarios, but bad experience using them broadly. How do you work asynchronously? Do you use it always? Or just for long running processes? Thanks.

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• How can I send raw postscript to a remote printer via CUPS?

  - by Ash

  I have an ancient fax device with a printer interface that only accepts postscript level 1 documents formatted in a specific way. I only have access to this printer over the lpd:// protocol. I have some old documents from our previous system that work fine on our Unix machines, but they are altered somehow by CUPS when I use lp on our Linux system. The PDF files that end up in the print queue are significantly modified versions of the original, and although they still render in ghostscript, they don't do anything on the printer. I'm wondering if there's a way to tell CUPS "don't process this, just send it to the printer without modification", or whether there's a lpd client or procedure I could try?

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• Java game design question (graphical objects)

  - by vemalsar

  Hello Guys, I'm beginner in game development, in Java and here on this site too and I have a game design question. Please comment my idea: I have a main loop which call update and draw method. I want to use an ArrayList which store graphical objects, they have coordinate and image or text to draw and my game objects extends this class. In update, I can choose which objects should be put in the array and in draw method I'll display the elements of array on the screen. I'm using a buffer and draw first there, but it is not important now I guess...Here is a simple (not full) code, only the logic: public class GamePanel extends JPanel implements KeyListener { ArrayList<graphicalObjects> graphArray = new ArrayList<graphicalObjects>(); public void update() { //change the game scene, update the graphArray, process input etc. } public void draw() { //draws every element of graphArray to a JPanel } public static main(String[] args) { while(true) { update(); draw(); } } } My questions: Should have I use interface or abstract class for graphicalObjects? graphicalObjects class and the ArrayList really needs or there is some better solution? How to draw objects? They draw themself with their own method or in the draw method I have to draw manually based on graphicalObjects variables (x,y coordinates, image etc.)? If this conception is wrong, please suggest another one! All comments are welcome and sorry if this is dumb question, thanks!

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• Upcoming SOA BPM PS6 Workshops

  - by BPMWarrior

  Are you interested in learning about all of the new great features in SOA BPM PS6? There is a lot of excitement around the new WebForms, Process Player, Simulation and the new features in the BPM Composer.  During FY14 Q1 and Q2 there will be a number of SOA BPM Workshops available. Space is limited. Upcoming SOA BPM Workshop Schedule:   Ø July 15th – PS6 Roadshow w/Mythics in Sacramento Ø July 18th – PS6 Workshop for Sandia Labs Ø July 23rd - PS6 Workshop in Reston Ø Aug 5th & 6th – PS6 Workshop for Deloitte in Reston Ø Aug 13th – PS6 Workshop in Reston for PS SC’s & Specialists Ø Aug 20th - 21st – PS6 Roadshow in NYC and Albany, NY        August – PS6 Workshop for Booz Allen Hamilton – date to be confirmed     August – PS6 Workshop in Dallas/Austin – dates to be confirmed      Sept 17th - SOA BPM Overview Workshop for Executives in Ottawa     Sept 18th – PS6 Workshop in Ottawa     Oct 23rd – PS6 Workshop in Denver         For more information contact:               [email protected] or [email protected]  g  

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• PHP Debugging

  - by Bob Porter

  Originally posted on: http://geekswithblogs.net/blogofbob/archive/2013/06/25/php-debugging.aspxI have been experimenting setting up a PHP development environment. I have been trying on Windows, Linux (Ubuntu) and Mac OS X. So far my favorite environment is on Mac OS X. I have tried a number of IDE's and debuggers as well.  IDE's Eclipse with the PDT Add On The PDT version of Eclipse Aptana Zend Netbeans  Debuggers Zend XDebug So far the only environments that I could get running quickly were Zend and Netbeans. Eclipse is a nightmare of versions and capabilities. I could only get Eclipse working well on Windows. On Ubuntu I was able to get the debugger working once. Thats it, one session, then it never worked again. I love the Zend tools and environment and it worked well everywhere I tried it, but it was beyond my budget.  Aptana also worked best on Windows, on Mac OS X it was fragile and I never could get debugging to work.  Netbeans worked first time, every time, every where. With one oddity, after several debugging sessions the debugger would refuse to connect. On every platform, I would end having to reboot to restore debugging, which would then work correctly for quite some time. I am sure I will discover that some process is hanging and there is a less intrusive way to clear the issue, but for now rebooting always works. In a future post I will go over how exactly I set my environment up, for now I have decided to stay with OS X. By the way, I did NOT use MAMP or the Zend Server, I stuck with PHP compiled and built from source, as well as Apache and MySQL installed locally. I use Homebrew as a package manager for OS X. I tried PORT but did not like the fact I had to sudo all the time to use it, and it installed things in /opt which I was not used to. Homebrew does sandbox the apps but it is nice enough to symlink them to their "normal" locations usually in /usr/local.

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• When NOT to use a framework

  - by Chris

  Today, one can find a framework for just about any language, to suit just about any project. Most modern frameworks are fairly robust (generally speaking), with hour upon hour of testing, peer reviewed code, and great extensibility. However, I think there is a downside to ANY framework in that programmers, as a community, may become so reliant upon their chosen frameworks that they no longer understand the underlying workings, or in the case of newer programmers, never learn the underlying workings to begin with. It is easy to become specialized to a degree that you are no longer a 'PHP programmer' (for example), but a "Drupal programmer", to the exclusion of anything else. Who cares, right? We have the framework! We don't need to know how to "do it by hand"! Right? The result of this loss of basic skills (sometimes to the extent that programmers who don't use frameworks are viewed as "outdated") is that it becomes common practice to use a framework where it is not required or appropriate. The features the framework facilitates wind up confused with what the base language is capable of. Developers start using frameworks to accomplish even the most basic of tasks, so that what once was considered a rudimentary process now involves large libraries with their own quirks, bugs, and dependencies. What was once accomplished in 20 lines is now accomplished by including a 20,000 line framework AND writing 20 lines to use the framework. Conversely, one does not want to reinvent the wheel. If I'm writing code to accomplish some basic, common little task, I might feel like I am wasting my time when I know that framework XYZ offers all the features I am after, and a whole lot more. The "whole lot more" part still has me worried, but it doesn't seem that many even consider it anymore. There has to be a good metric to determine when it is appropriate to use a framework. What do you consider the threshold to be, how do you decide when to use a framework, or, when not.

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• How would you model an objects representing different phases of an entity life cycle?

  - by Ophir Yoktan

  I believe the scenario is common mostly in business workflows - for example: loan management the process starts with a loan application, then there's the loan offer, the 'live' loan, and maybe also finished loans. all these objects are related, and share many fields all these objects have also many fields that are unique for each entity the variety of objects maybe large, and the transformation between the may not be linear (for example: a single loan application may end up as several loans of different types) How would you model this? some options: an entity for each type, each containing the relevant fields (possibly grouping related fields as sub entities) - leads to duplication of data. an entity for each object, but instead of duplicating data, each object has a reference to it's predecessor (the loan doesn't contain the loaner details, but a reference to the loan application) - this causes coupling between the object structure, and the way it was created. if we change the loan application, it shouldn't effect the structure of the loan entity. one large entity, with fields for the whole life cycle - this can create 'mega objects' with many fields. it also doesn't work well when there's a one to many or many to many relation between the phases.

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• Dell 2155cdn Multifuntion Printer

  - by Wayne-Z

  Hey guys. So after a prolonged period, (overnight) i lose the ability to initiate a scan directly from the unit. I'll initiate a job and after awhile, it times out and beeps. However, when i go to the PC and initiate a scan from there, the scan job goes through just fine, and i can then initiate scans directly from the unit all day. Until a prolonged period (overnight). Then i have to do the process again. Ive made sure all powersave settings were off.. The PC doesnt go to sleep or a powersave state. Any insight into this will be appreciated. Pertinent Info: - Unit: Dell 2155cdn Multifunction - Connected via USB - PC: Dell Optiplex 755

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• Storage of leftover values in a situation of having to round down

  - by jt0dd

  I'm writing an app (client and server side) where the number of sales required by each employee must be kept track of in round-number form. Each month, the employees are required to sell a certain number, and this app needs to keep track of how many sales must be made for each 12 hour interval during the work week. Because I have to round the values down to a whole number, I must keep track of leftovers in the rounding process and ensure that they are always carried over. My method must ensure the storage of the leftover value even when client and server side crash, restart, close, etc. Right now, I'm working on doing this by storing the leftovers in a field in the user's account row in the database each time a value is rounded, reading the stored value, removing any portion that is used (when a whole number is reached, most of the leftover is used up), and storing the new value. This practice seems weird because while the leftovers are calculated on the client side, it's the same number for each employee, and every employee using the app is storing a copy of the same leftover data. Alternatively, I could have all clients store the data at once into the same data field on a general table, but this is just as weird. Is there a better way that this can be handled or is my method correct?

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• yum update with shared cache

  - by Sammitch

  We've got a big batch of RHEL6 machines that are due for patching, and for some reason the process here does not involve a local repo. I'm new here, I've asked why, ["it just didn't work"] and I don't have enough time to make it work before the window that's already scheduled. So the usual method is to install yum-downloadonly and run yum update --downloadonly --downloaddir=/mnt/cifs_share and then yum update /mnt/cifs_share/*.rpm which just does not look right to me since not all of these machines have the same set of installed packages. The method I tried today was mounting the share to /var/cache/yum/x86_64/6Server/rhel-x86_64-server-6/packages/ which worked, but then yum automatically deleted everything once it finished. I've looked over the yum man page, but I don't see any flag I can feed it to stop it from deleting everything, nor a flag like up2date's --tmpdir=/mnt/cifs_share. Can anyone out there help me kludge this together until I can get a local repository working?

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• cpu usage nearly 100 constantly windows xp sp3

  - by user23954

  When running some heavy applications like games or virtual box for some time.. the cpu usage is normal for some 15 mins and then suddently cpu usage increases. even after i quit the heavy apps and when i start some other apps, the cpu usage of the new opened application is also very high.. this continues until i reboot the system. There is single particular process occupy more cpu. All the processes cpu usage is little high than normal.. Any solutions?

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• Problem Activating “Windows Communication Foundation Non-HTTP Activation” feature in Windows 7

  - by Escobar5

  Hello, I'm having the following problem. I'm installing SharePoint 2010 Beta so I need to activate the windows feature "Windows Communication Foundation Non-HTTP Activation". The problem is I cannot activate it, i get the message: "An error has occurred. Not all features were successfully changed" When i look at the log (C:\Windows\Logs\CBS\CBS.log) I found this error: Process output: [l:186 [186]"SMConfigInstaller[Error]: Failed in calling 'StartService' for service 'NetTcpActivator'. Error code: 0x8007042c Anyone can give me a clue of what is happening here?

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• is wisdom of what happens 'behind scenes' (in compiler, external DLLs etc.) important?

  - by I_Question_Things_Deeply

  I have been a computer-fanatic for almost a decade now. I've always loved and wondered how computers work, even from the purest, lowest hardware level to the very smallest pixel on the screen, and all the software around that. That seems to be my problem though ... as I try to write code (I'm pretty fluent at C++) I always sit there enormous amounts of time in front of a text-editor wondering how every line, statement, datum, function, etc. will correspond to every Assembly and machine instruction performed to do absolutely everything necessary for the kernel to allocate memory to run my compiled program, and all of the other hardware being used as well. For example ... I would write cout << "Before memory changed" << endl; and run the debugger to get the Assembly for this, and then try and reverse disassemble the Assembly to machine code based on my ISA, and then research every .dll, library file, linked library, linking process, linker source code of the program, the make file, the kernel I'm using's steps of processing this compilation, the hardware's part aside from the processor (e.g. video card, sound card, chipset, cache latency, byte-sized registers, calling convention use, DDR3 RAM and disk drive, filesystem functioning and so many other things). Am I going about programming wrong? I mean I feel I should know everything that goes on underneath English syntax on a computer program. But the problem is that the more I research every little thing the less I actually accomplish at all. I can never finish anything because of this mentality, yet I feel compelled to know everything... what should I do?

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• Windows 7 Pro x64 suffering from insomnia

  - by gemisigo

  My Win 7 Pro x64 is unable to enter sleep mode. Pressing the sleep button results in strange state where the computer starts entering the sleep mode, the display is turned off but then the whole process stops, it does not switch off the hdd, the keyboard still responds to numlock/capslock, but the display does not on anymore. I have to cut power and restart. If I remove everything (wireless mouse, external hdd, usb hub, etc.) it does enter sleep mode, but if there is something left, it does not, though every one of them has "Allow the computer to turn off this device..." checked and "Allow this device to wake the computer" unchecked. Why does it not work? It was working properly in the RC.

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• Is it possible to change the motherboard/bios vendor name? [closed]

  - by vignesh4303

  Possible Duplicate: How can I change my BIOS splashscreen? When we start the system we normally used to get the motherboard/vendor name for e.g i'm having the system with mercury motherboard whenever i restart my system the mercury logo will get displayed(you ll have respected vendors) and the regular process will go on .. my question is Is it there any possibility to change the name and logo of mercury(on my system &it differs based on your motherboard you are using ) on start up? if you are an laptop user "you can see the laptop vendor name e.g "dell" " For asus user's refer Bon Gart's comment ,I am in search of answer those whom feel frustrated about the motherboard/bios splash screen and whom feel to change it

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• frequent abnormal shutdowns/system crashes

  - by user110353

  It's been almost 5 days since I have installed Ubuntu and almost 6th time that my laptop has been crashed entirely and it shuts down abnormally. Actually, it heats up and I have to wait for 20 odd minutes before I can turn it on again. A message appears that my PC crashed due to overheating which may damage my hard disk. The crashes happened when I tried to open some application that freeze my PC not even giving me enough time to go to system monitor and end process. Sometimes the culprit application which caused crash is Ever-pad, sometime it's team-viewer, sometimes it's some other. This is something very serious. The last crash occurred at 09:14:40. Kindly click here to view system log. I want to stick to Ubuntu and the same laptop as I had serious issues with Windows and I nearly went out to dump my laptop and purchase a more powerful system. Below are my hw/os specs. Kindly advice on how to resolve this issue Ubuntu 12.10 Kernal 3.5.0-18-generic GNOME 3.6.0 Memory 2.0GB Processor: Genuine Intel CPU [email protected] x 2 Available Disk Space: 63.7 GB Thanks in advance

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• Can GNU sed (for Windows) handle Unicode? If so, is it a code-page/locale issue, or a switch?

  - by Peter.O

  I've been using GNU SED on and off for a couple of years now. It spins me out a bit sometimes, but it does a good job... for single-byte char sets! I now and then notice references to GNU SED being Unicode-aware, but the closest I've seen of this is its "binary" mode.. and binary is not Unicode. Can GSED process a Unicode text file at CodePoint resolution, including and especially \r\n (Windows)... and if it can, does it expect UTF-8, UTF-16, or what? and how does SED detect the encoding?

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• Force Run System File Checker (SFC.exe)

  - by Zuck

  C:\Windows\system32>sfc /scannow Beginning system scan. This process will take some time. There is a system repair pending which requires reboot to complete. Restart Windows and run sfc again. Is there a way I can force SFC to scan again and make the new fixes on reboot? Probably by deleting some file or something? I removed C:\Windows\WinSxS\pending.xml by taking ownerships but it still shows the same message.

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• How to properly shrink a disk size of a server that is being backed up off-site?

  - by JKM

  We have a Virtual machine (lets call this one source) that is being hosted locally with a 1TB disk space (that's how big the virtual disk is) and it has been replicated remotely via Veeam to an off-site server (lets call this clone). However, there has been some server configuration changes that has made source not require as much disk space. I am contemplating shrinking the disk size of source, or using the standalone converter to create a new image with a much smaller disk size requirement (about 300GB). The reason behind this is to lessen the time required for the "Discovering replica VM" step during the replication process. My question is what happens to clone when the replication job is run? Do I need to redo the replication/set up a new backup to create an initial seed for source? Will the job automatically pick up that the disk size has shank and adjust the disk size of clone appropriately? What is the best method for accomplishing this?

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