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anonymous

Learning The Right Lessons From The Amazon Outage - 5 views

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    Define: AWS Iaas Define and describe: Free redundancy rapid scalability server failover maintainability Explain each lesson and determine whether you agree or not with each one. May 13 az
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    1) Define: AWS- The Amazon Web Services (AWS) are a collection of remote computing services (also calledweb services) that together make up a cloud computing platform, offered over the Internet byAmazon.com. The most central and well-known of these services are Amazon EC2 and Amazon S3. Iaas - infrastructure-as-a-service; a way to deploy a less reliable server, quickly and without human intervention. 2) Define and describe: Free redundancy- re-deploying your application in another data center or cloud service using on-demand resources instead of having an idle redundant data center. Rapid scalability- Scalability approach that doesn't require access to AMIs that is stored on S3 or EBS. Instead, it uses the on-demand resources. This is when the system can withstand changes in transaction volume without major changes. Server failover- Virtual servers fail more frequently that physical servers, and when they do, there is less ability to recover them. Treat server failover the same way as scalability, just bring up a new server. Maintainability- Use a fully automated deployment and not a server configuration that is created manually to make it maintainability. Since, when a server configuration that is created manually and saved to a "golden image" has numerous problems such as: only the person who built it knows what is there, so if that person is gone, it can be time consuming to re-configure it. On the other hand, a fully automated deployment is not only a maintainable process, it also serves as documentation. 3) Explain each lesson and determine whether you agree or not with each one. Wrong lesson #1 The lesson where the infrastructure of the cloud is either not ready for its time to shine, or never will be. This is the lesson that explains that the infrastructure is still carried out on physical servers, just in remote areas where they are held in the physical data center in large numbers. These physical server
anonymous

BBC News - Firms 'ill prepared for IT failure' - 9 views

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    Explain 2 solutions. all nov 28 kuni
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    The most common causes of data loss and downtime are hardware failure, power outage and software malfunction. One solution is to regularly back up data (daily) and make sure that the computer has a recovery system enabled. The second solution is to plug every computer into a UPS (uninterruptable power supply) in case of power outage.
anonymous

Corporate computing: Online reputations in the dirt | The Economist - 2 views

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    Explain the issues that are in common with both Amazon and Sony? Explain the reasons that cloud computing will continue to grow? What could have prevented Sony from getting hacked? Describe: Rambo architecture Chaos monkey Explain the reason that data centers for cloud computing need backups? may 9 woo
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    incomplete
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    1. Explain the issues that are in common with both Amazon and Sony? Issues that are in common with both Amazon and Sony are their reliability and integrity as well as its security. Amazon has just revealed that its Availability Zone in northern Virginia has failed to accommodate customers that were using their services. Sony's hack incident includes its network protection system to be unreliable. Also the security of Amazon's customer's data along with Sony's online users' data is at risk, as well as sensitive information linked to bank accounts. Both Sony and Amazon suffer a setback on their online reputation. Both companies have their servers down which affect a lot of their customers using their services. They both revived worries about the safety of storing and processing data over the Internet. The two crises have also raised questions about the speed and quality of information provided by tech companies when confronted with systems failures. This further links to the data integrity. Amazon users have said that some data may be corrupted or loss resulting from their sites crashing. Sony's users' accounts data may have been altered by unauthorized people. 2. Explain the reasons that cloud computing will continue to grow? Cloud computing will still continue to grow despite its recent incidents because the benefits users receive outweigh the risks that come with cloud computing. The outage suffered by Amazon has been rare. Also, managing one's own network is hardly a guarantee of reliability; it costs a lot of money and is high maintenance. Cloud computing provides another alternative that can save costs for businesses. Also, the recent incidents have proven that managing one's own network is not as reliable as some think considering protection issues and failure/crashes in the network itself. 3. What could have prevented Sony from getting hacked? Sony could have increased its protection system, as well as create random simulations in orde
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    Tags: 1.1 Reliability and integrity 1.2 Security 3.3 Network
anonymous

Control these large smart appliances with your iPhone | Appliances - CNET Reviews - 1 views

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    Describe IT Dawoon Oct 2
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    Most smart appliances have an accompanying application. Those applications are available on iOS and android. (Samsung's washer and dryer application is working on only iOS and Samsung's Galaxy mobile devices, not the rest of the Android devices.) There are some examples of using iOS to control the smart appliances 1. LG Smart ThinQ LFX31995ST LG Smart ThinQ app will tell you the internal temperatures of both the refrigerator and freezer, and whether it's on energy-saving mode or not. You can make grocery lists and automatically update your inventory once you've checked an item off the list. Also, you can search for recipes on the fridge based on what your fridge has in stock. 2. Whirlpool WRL767SIAM Side-by-Side Refrigerator with 6th Sense Live it transmits information directly to the free app on your smart device. Whirlpool's app can let you know, if the refrigerator door is open or if there has been a power outage. Whirlpool has also enabled this refrigerator to connect to the smart grid if it's available in your area, which will let you monitor energy usage through its app. 3. GE Profile PT9550SFSS Built-In Double Convection Wall Oven The game-change app turns your phone into a remote control for the oven. You can set the temperature, mode, and time for both ovens independently and turn them on with app. 4. LG Smart ThinQ LRE3027ST oven Smart ThinQ app will allow you to search for recipes and then cue up the cook time and temperature accordingly, but you still have to manually press start on the oven itself. LG app allows you to run diagnostics on the range to make sure that everything is running as it should be. 5. LG Smart ThinQ WT6001HV Washer/Smart ThinQ DLEX6001V Electric Dryer LG's Smart ThinQ washing machine features a gorgeous touch screen and connects to LG's Smart ThinQ app via your smartphone or tablet. It doesn't have a smart-grid function like some other washer/dryer apps, but it's otherwise similar in that it lets you check your wash cycle
anonymous

http://www.theregister.co.uk/2011/04/21/amazon_web_services_outages_spans_zones/ - 4 views

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    brief april 28 jen
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    1. Identify the area of impact the scenario relates to. Business and Employment 2. Identify the main stakeholders to the IT system. Amazon and companies using Amazon's cloud service 3. Identify one ITGS social/ethical concern in the article Reliability 4. Describe ITGS terminology and systems. The hardware used in this situation is the servers used to host information for companies. Amazon's cloud model is used by the connecting to the internet network. The Availability Zones are the zones that according to Amazon, are distinct locations that are engineered to prevent failures in other Availability Zones. Amazon Web Services (AWS) - Amazon's web service that provides companies with infrastructure web service platforms in the cloud. Amazon's Elastic Computer Cloud (EC2) - A web service that provides resizable compute capacity in the cloud, designed to make web-scale computer easier for company developers. Amazon's Elastic Block Store (EBS) service - this service provides block level storage volumes for use with Amazon's EC2 instances. The EBS volumes are off-instance storage that is independent from the life of an instance. http://aws.amazon.com/ 5. If possible, describe a solution to the concern (issue). A solution to the reliability concern is for businesses and companies to filter out what they plan to put on Amazon's cloud services, and what to keep in their private network within their control. Balancing the two would beneficial and can prevent a lot of damage that a failure of a server may do the company as well as its files and data stored in the cloud. Amazon explaining how their cloud service actually works and have it backs up everything should be able to calm down businesses, and regain their trust again once everything is back up and running again.
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