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  • SAN typical MTBF

    - by Adrian K
    We're using a SAN on a project at work, and there's a bit of debate around the fact that's technically it's a Single Point of Failure. No one seems to have any hard data. The SAN in question is a single physical box, but with internal redundant components (sorry - not sure3 what level of RAID it has, but I can find out). What's the tyopical MTBF for a SAN? The PM has it down on the projects risk register as "Quite Common' - I've never heard of a SAN going down, but I don't jhave any stats to show how likely it really is. Does anyone have any helpful info?

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  • Mapping between 4+1 architectural view model & UML

    - by Sadeq Dousti
    I'm a bit confused about how the 4+1 architectural view model maps to UML. Wikipedia gives the following mapping: Logical view: Class diagram, Communication diagram, Sequence diagram. Development view: Component diagram, Package diagram Process view: Activity diagram Physical view: Deployment diagram Scenarios: Use-case diagram The paper Role of UML Sequence Diagram Constructs in Object Lifecycle Concept gives the following mapping: Logical view (class diagram (CD), object diagram (OD), sequence diagram (SD), collaboration diagram (COD), state chart diagram (SCD), activity diagram (AD)) Development view (package diagram, component diagram), Process view (use case diagram, CD, OD, SD, COD, SCD, AD), Physical view (deployment diagram), and Use case view (use case diagram, OD, SD, COD, SCD, AD) which combines the four mentioned above. The web page UML 4+1 View Materials presents the following mapping: Finally, the white paper Applying 4+1 View Architecture with UML 2 gives yet another mapping: Logical view class diagrams, object diagrams, state charts, and composite structures Process view sequence diagrams, communication diagrams, activity diagrams, timing diagrams, interaction overview diagrams Development view component diagrams Physical view deployment diagram Use case view use case diagram, activity diagrams I'm sure further search will reveal other mappings as well. While various people usually have different perspectives, I don't see why this is the case here. Specially, each UML diagram describes the system from a particular aspect. So, for instance, why the "sequence diagram" is considered as describing the "logical view" of the system by one author, while another author considers it as describing the "process view"? Could you please help me clarify the confusion?

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  • SQL SERVER – Four Tutorial for SQL Server 2012 New Features

    - by pinaldave
    One of the very common question I receive on my facebook is that if there is any tutorial for SQL Server 2012 new enhanced features and solutions. I see this demand a bit increasing as the SQL Server 2012 is more and more being adopted. Here is the list of four tutorial which is specifically created for SQL Server 2012 by Microsoft. Multidimensional Modeling (Adventure Works Tutorial) This tutorial teaches you how to develop and deploy an Analysis Services project that enables the employees of Adventure Works Cycles to analyze various aspects of their business. Tabular Modeling (Adventure Works Tutorial) This tutorial teaches you how to create a SQL Server 2012 Analysis Services tabular model that enable sales and marketing teams to easily analyze internet sales data in the AdventureWorksDW2012 data warehouse. You will build the tabular model in SQL Server Data Tools. Tutorials and Demos for Power View Create Power View reports and explore Power View features. View demos, videos, and tutorials that help you get started quickly with Power View and successfully build reports with interactive filters and visualizations such as bubble charts, tiles, and cards. Tutorial: Using the hierarchyid Data Type This tutorial is intended for users who are experienced with Transact-SQL, but are new to the hierarchyid data type. In this tutorial, you convert an existing table to a hierarchical structure, and you also create a new table to store and manage hierarchical data efficiently. Note: The description of the course is taken from original course description. You will need to install SQL Server 2012 AdventureWorks for all this tutorial. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Training, T SQL, Technology

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  • How to recertify Notes .id file if you can't get into Notes Admin

    - by Ben
    I've got a bit of a catch-22 situation here. My company used to use Notes, but migrated to Exchange several years ago. As such the Notes server was mothballed. I now need to get back into Notes to get some data from an old app we had. The trouble is, all my .id files have expired. I can't recertify them, as I can't log into Notes Admin - because the .id has expired. Is there any way round this? Thanks, Ben

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  • Windows Vista Password changed... What the?

    - by Moshe
    My mom's Vista Home Premium (32 bit) password was changed. My mom said that she didn't change it and she doesn't think anyone else here did either. So.. Could this have been done remotely? I'm running Ophcrack now, what else can we do? (I haven't tried safe mode yet.) I'm a techie and somewhat baffled. Help! Edit: ophcrack found empty LM but no NT hash is displayed. Entering safe mode... Edit2: I'm an idiot. Well sort of. Ophcrack could not crack the password which was just lowercase English letters, but for some reason, I was able to login using the orignal password in safe mode. Once in safe mode I "changed the password" back to it's original value and was then able to login in regular mode... It's time to run a virus scan.

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  • Used HDD/ran DiskSmartView/40,000 Power-on-hours?? should i trust it w/ my data, or take it back and bitch?

    - by David Lindsay
    I just bought a used hard drive from a University Surplus Store. Decided to run DiskSmartView to make sure it wasn't ready to fail. 40,000 power-on-hours I don't know if I feel like trusting my data to something that used. I really dont know if thats unreasonably old, but when i compare it to the POH reading i get when testing my other hdds its more than 3x older (my others have 2110 hours, 6150 hours, etc.. It's a Western Digital, so that gives me a little bit of hope(WDC WD4000KD-00NAB0). I could sure use someone else's opinion here. Thanks, DAVE

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  • Incredibly high latency for Ubuntu guest on Hyper-V

    - by Mark Henderson
    I've got several Ubuntu 10.04 virtual machines running as Hyper-V guests on Windows Server 2008 R2 SP1 and they're all perfectly fine. Today I installed my first Ubuntu 11.10 virtual machine and I'm seeing rediculous pings: These servers are all connected via gigabit to a local LAN, with almost no network traffic at all1, with a legacy network adapter in Hyper-V. I'm a bit of an Ubuntu n00b so I don't really know where to go from here. Any ideas? free -m reports: total used free shared buffers cached Mem: 485 470 15 0 63 299 -/+ buffers/cache: 107 378 Swap: 507 20 487 This is within a few mb of our other Ubuntu servers that are on 10.04. I removed the Legacy NIC and installed a Synthetic one in Hyper-V and this did improve the numbers, in that they're around 10-30ms now, but I would still be expecting <1ms response times. 1As a comparison, I have another Ubuntu 10.04 guest on Hyper-V almost 1,000km away that has a ping of 33ms

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  • pure-ftpd debian, can't get www-data user working

    - by lynks
    I'm trying to add FTP access to the apache web files, in the past I have done this with an ftpuser and group arrangement. This time I would like to make it possible to login directly as www-data (the default apache user on debian) to make things a bit cleaner. I have checked and re-checked all the common issues; MinUID is set to 1 (www-data has uid 33) www-data has shell set to /bin/bash in /etc/passwd PAMAuthentication is off UnixAuthentication is on I have restarted pure-ftpd using /etc/init.d/pure-ftpd restart My resulting pure-ftpd run is; /usr/sbin/pure-ftpd -l unix -A -Y 1 -u 1 -E -O clf:/var/log/pure-ftpd/transfer.log -8 UTF-8 -B My syslog contains; Oct 7 19:46:40 Debian-60-squeeze-64 pure-ftpd: ([email protected]) [WARNING] Can't login as [www-data]: account disabled And my ftp client is giving me; 530 Sorry, but I can't trust you Am I missing something obvious?

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  • Merging partitions and removing windows of one partition

    - by SmartLemon
    I have two partitions on my laptop, I created a new one when installing windows 8 pro because windows 7 wouldn't upgrade to it for some odd reason. The main partition, which has 631 GB ( has windows 7 installed on it, and the second partition is 49.9 GB and has windows 8 installed on it. What I need to do is remove windows 7 from the other one (Yeah its dual booting), make it so it boots straight into windows 8, without showing the dual boot screen, and also merge the two drives together. Only problem is, I have no idea how to do this. Please don't use complete lamens terms, I am a software developer so I know at least a bit about computers. Here's disk management so you can see how its set out.

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  • Why do my speakers get distorted randomly on Windows 7?

    - by Daniel Fischer
    I have a studio monitor setup. I have 2 KRK 6's and a Focusrite Firewire Pro 24. Every few hours my speakers sound distorted and my solution has been go to sound levels Properties of Saffire Audio Device Advanced Default Format Toggle to 16 bit then back to 24bit. Why does it screw up every few hours? Sometimes one speaker doesn't output too and this same process resets it but that's more rare. Is this a OS issue or Focusrite Driver Issue?

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  • Very poor battery life on Lenovo ThinkPad W500 laptop

    - by Matt
    I have a new ThinkPad W500 laptop (w/ 9 cell battery) running Windows 7 RTM 64-bit. All drivers* and BIOS are the latest. Battery life appeared poor so I performed several tests under the following conditions: Battery starts with 100% charge Screen on minimum brightness Screen saver running Wifi n enabled and active "Normal" set of programs running including Outlook 2007, FeedDemon, TweetDeck and antivirus Laptop left untouched during tests Under the above conditions, I clocked under 2 hours of battery life across 3 tests (1:49, 1:52, 1:47). If I actually use the computer, we're looking at 1:30. Something is not right... The smoking gun here is that Lenovo hasn't officially released Windows 7 drivers for this laptop. I haven't tried with Vista or XP yet. What are others seeing? Update: For W500 owners w/ the 9 cell battery, what value do you see for "Full charge capacity" when on the Battery tab of the Power Manager utility? I see 81.87 Wh.

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  • Anonymous Access and Sharepoint Web Services

    - by Stacy Vicknair
    A month or so ago I was working on a feature for a project that required a level of anonymity on the Sharepoint site in order to function. At the same time I was also working on another feature that required access to the Sharepoint search.asmx web service. I found out, the hard way, that the Sharepoint Web Services do not operate in an expected way while the IIS site is under anonymous access. Even though these web services expect requests with certain permissions (in theory) they never attempt to request those credentials when the web service is contacted. As a result the services return a 401 Unauthorized response. The fix for my situation was to restrict anonymous access to the area that needed it (in this case the control in question had support for being used in an ASP.NET app that I could throw in a virtual directory). After that I removed anonymous access from IIS for the site itself and the QueryService requests were working once more. Here’s a related article with a bit more depth about a similar experience: http://chrisdomino.com/Blog/Post/401-Reasons-Why-SharePoint-Web-Services-Don-t-Work-Anonymously?Length=4 Technorati Tags: Sharepoint,QueryService,WSS,IIS,Anonymous Access

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  • Grub2 fails to chainload Windows 7 with error "invalid signature"

    - by atomicpirate
    I've built a new UEFI 64-bit system with both Windows 7 and Ubuntu 11.10 installed (on separate hard drives). I'd like to be able to boot Windows 7 from the grub menu, but I have so far been unsuccessful in getting grub to chainload it. After getting the grub menu, I choose the option for the command line and I can see that bootmgfw.efi is at (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi. However, when I attempt to chainload I get an error: grub> chainloader (hd1,gpt1)/efi/Microsoft/Boot/bootmgfw.efi error: invalid signature I am not sure whether I chose the UEFI boot option when I installed Linux from the LiveCD, and so I am wondering if the grub I have is perhaps unable to chainload in this manner? In any case I am not sure how to get the chainload to work.

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  • Windows XP computer can't see Windows 7 shares

    - by Alex Brault
    I am building a network containing notably a laptop running XP and a computer running Windows 7. Both computer have shared folders and the 7 has a shared printer, to which another laptop running 7 is able to print. If I attempt to see the laptop's network shares on the PC, everything works perfectly: I am able to see and enter the folders. The reverse operation however doesn't work. Xp doesn't see the Windows 7 PC. Other things to note: As mentioned above, another Windows 7 computer is able to see the printer and I can ping both computers from either PC. Both computers are in the same workgroup named ALLAITEMENT Password-protected shares are turned off on the PC. The 7 Computer uses 40/56 bit encryption The Windows XP laptop has SP3

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  • Windows XP won't boot after drive transplant

    - by Nathan
    Hi all, I moved my hard drive from my Lenovo laptop into my Asus Eee PC netbook. When I started the netbook, after POST all I got was a black screen with a cursor in the upper left corner. I thought that the migration should work OK because this was a 32-bit version of Windows XP, and the Atom processor in the Asus should support the x86 instruction set. However, I don't know much about Windows, so maybe this was a dumb thought. I did verify that the BIOS can find the drive. It required major surgery to replace the drive, so any solution requiring me to remove the transplant drive is not going to fly. Keeping in mind that the netbook has no optical drive and that I have no other Windows computers (all my other computers run Linux), is there any way I can fix this problem? Thanks! Nathan

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  • Media Temple-like hosting services?

    - by antonpug
    I have a couple of wordpress sites which do not get much traffic now, but I plan on expanding to something like a 1000-2000visits/day in a year or two. Media Temple has some really nice offerings, but their Wordpress plan is 20/month...which is a little too much, seeing as at this point my site is more of a hobby than a money making machine. I currently host with HostGator (just switched from GodaddyiPageBluehost). All these cheaper/pop hosting services are okay, but it would be nice to find something a little bit more "premium", but at a lower cost than MT. Anyone know anything worth looking at?

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  • Dutch ACEs SOA Partner Community Award Celebration

    - by JuergenKress
    When you win you need to celebrate. This was the line of thinking when I found out that I was part of a group that won the Oracle SOA Community Country Award. Well – thinking about a party is one thing, preparing it and finally having the small party is something completely different. It starts with finding a date that would be suitable for the majority of invited people. As you can imagine the SOA ACEs and ACE Directors have a busy life, that takes them places. Alongside that they are engaged with customers who want to squeeze every bit of knowledge out of them. So everybody is pretty busy (that’s what makes you an ACE). After some deliberation (and checks of international Oracle events, Trip-it, blogs and tweets) a date was chosen. Meeting on a Friday evening for some drinks is probably not a Dutch-only activity. But as some of the ACEs are self-employed they miss the companies around them to organize such events. Come the day a turn-out of almost 50% was great – although I expected some more folks . This was mainly due to some illness and work overload. Luckily the mini-party got going, (alcoholic) beverages were consumed, food was appreciated, a decent picture was made (see below) and all had a good chat and hopefully a good time. (Above from left to right: Eric Elzinga, Andreas Chatziantoniou, Mike van Aalst, Edwin Biemond) All in all a nice evening and certainly a "meeting" which can be repeated.  For the full article please visit Andreas's blog Want to organize a local SOA & BPM community? Let us know we are more than happy to support you! To receive more information become a member of the SOA & BPM Partner Community please register at http://www.oracle.com/goto/emea/soa (OPN account required) Blog Twitter LinkedIn Mix Forum Technorati Tags: Eric Elzinga,Andreas Chatziantoniou,Mike van Aalst,Edwin Biemond,Dutsch SOA Community,SOA Community,Oracle,OPN,Jürgen Kress,ACE

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  • Which mediacenter appliance

    - by Guillaume
    I'm looking to buy a mediacenter appliance, but I am a bit lost by all the offers on the market. Here are the features I am looking for : at least 500Go HDD capable of playing HD (1080p) supporting a good range of video and audio codecs support for subtitles including a DVB-T input (coax) and tuner composite video input 5.1 (or 7.1) analog audio output LAN (100M or Gigabit) fileserver (SMB or NFS) remote control possibly digital output (S/PDIF, TOSLINK, or other) no need for integrated DVD player no need for wifi The Ultio Pro looks nice (http://www.thinkgeek.com/electronics/home-entertainment/d3fe). It just lacks a DVB-T input which is a show killer for me. Thanks for your suggestions.

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  • How to Shutdown PC by Pressing Power Button without asking "Force Close"?

    - by AgA
    I always Hibernate my PC. Sometimes when I boot, it does not recognize the mouse/keyboard or any USB devices. I've also setup it to go in sleep in 5 minutes. In that case I can't restart the PC so that USB starts working. When I press the Power button then it starts shutdown but asks confirmation twice, one is for shutdown by force confirmation and then there is one more. When my USB is disabled I can't input these options. So I switch off the power. What I want is that upon pressing Power Button it should at once start shutdown without asking any more confirmations System details: Win-7 Home Premium 64 bit Intel i3 530 Asus P montherboard EDIT: It is Desktop PC

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  • How can I get data off of a Corsair SSD?

    - by user1870398
    My Corsair SSD won't work and I have some critical data on it that I didn't back up (I needed to create a copy of my mechanical storage device, just forgot). The drive isn't detected by the OS or BIOS. I also tried it on another system, but all that happened was the OS failed to load (my guess was that it knew the drive was there, just couldn't read it). I tried powering it on without the data cable for a bit of time to see if it'd work again, but it didn't. Any ideas of how I can get the data off of this drive without having to send it in?

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  • crash when using wireless network

    - by Erik
    ubuntu 12.04 32 bit When I start up my system almost instantly freezes, I found that the problem lays with my wireless network, because the crash is always t the same time as the message that tells me I am connected to a network when I start up connected to a cable everything works fine, I can even see that I am connected to our wireless network, until I unplug the ethernet cable, then it all freezes again the same happened when I boot from a live cd (from usb) The problem only occurs on my netbook, my laptop doesn't give any problems. I don't know if anyone else has had similar problems, or if anyone knows a solution... Thanks in advance! greetings Erik EDIT (21/3/2012): it seems there is some external factor involved, I'm using my netbook for about 50 minutes now while connected to the wireless network, and still it didn't crash strange enough, before these 50 minutes I had to put it down by holding the power button, because I decided to try it again, that time it did crash... before (while connected with an ethernet cable) I've been trying to get my Bluetooth working, that didn't succeed entirely, but I guess that might be a factor in the question why it doesn't crash at the moment now I rebooted, connected, and no crash... if it crashes again, I'll update this post again. in the meantime, if anyone has an idea on what could be a factor, and on how to create a crash using that factor, feel free to ask!

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  • Ranking hit after site migration

    - by Ben
    I migrated my site from its old domain over a month ago. I followed Google Webmaster Tools completely, including 301 redirects from every existing URL to the new domain, and then submitting a change of address. Traffic continued as normal, but then a few days after submitting the change of address traffic plummeted to about 20-30% of what it was previously. Most of my traffic comes from organic search, and I can see that for the keywords I had targeted before and performed well with and am now ranking much much lower for. In some cases for low competition keywords I've only lost a few places, for higher competition terms I have really suffered. This has started to pick up a bit (one of my keywords I have risen from 195 to 100 in the last week), but it seems to be a very slow process. How seamless is this process normally? I was under the impression that this would not affect my rankings too severely, but it has now been a month since the move and recovery seems to be very slow, if at all. Is it likely that I've missed something? The only change is that I have moved what was the home page to be more of a sub-page, and now in its place is a magazine-style home page. I understand that links to the old site will now be pointing to the latter which means that rankings for some keywords attributed to the old home page will take a hit, but even on other pages that seem to fit in exactly the same page structure as the previous site I have seen a drop in rankings.

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  • Firefox does not print flash content

    - by Rochelle
    I am using Firefox 3.6.15 on a Windows 7 Professional, 64-bit Operating System, Intel Core i7 CPU, 3.33GHz, 10BG RAM, by Hewlett-Packard. Firefox does not print flash content, aka swf objects, nor does it show them in the print preview pane...I want to print out the entire web page with the flash content. I seem to only be able to see flash and html content together in print preview and to print in IE8. I have tried to google this issue, but could not find a solution. I was trying to print preview/print out the following site: http://www.discovertheponds.com/. Flash content will display in print preview and print in IE8, but neither print preview or print in Firefox. I have also updated the Java on my computer to the most recent update, and ran the firefox plug-in checker at http://www.mozilla.com/en-US/plugincheck/ . I do run Firebug and Web Developer, but have currently disabled them. Is this problem on my end, meaning some issue with my computer...or is this because of how the website was programmed in HTML/Flash...or is this a bug with Firefox? I am a website designer and am also concerned that others will not be able print sites I develop or have already developed that have flash content from Firefox. I used to think Firefox was better than IE at everything. What happened here? Was it some change in Firefox's version that caused this problem?

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  • XFCE: active panel buttons when mouse is on screen edge

    - by Dave Vogt
    I'm using XFCE 4.6.1 (Xubuntu distribution) on my laptop and main computer; the settings are approximately the same. so far for the intro. What I'm experiencing is that when going to the screen edge over the task bar on the laptop, the button under the mouse is active. On the main machine however, having the mouse on the screen edge, the button below it doesn't react at all! Only if I move the pointer towards the center a bit, the hover highlight starts and the button becomes clickable. I've tried to change the panel size, desktop theme and a few other settings, but none seems to cure that problem. Is there something that causes this problem? (Googling also seems to give no results)

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  • Is this normal? Multiple httpd process

    - by ilcreatore
    I'm testing a new Server. This isnt really a peak time for my server (2pm), but still its running a bit slow, I was checking the ESTABLISHED connections using the following command: # netstat -ntu | grep :80 | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n http://i.stack.imgur.com/cZuvP.jpg My MaxClients are set to 50. So as you can see on the picture, only 10 people are eating most of my ram. I got a server with 4GB Ram (2.7GB free for apache) but each apache process is eating 53MB each, wich mean im only allowed to accept 50 process. The KeepAlive = Off, but I notice those connections arent closing fast enough, is that normal?

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