Stretching The Cloud LiiiiiiiiMiiiiiiiTS!

Recently, evangelizing virtualization and cloud infrastructure saw me speaking to an organization IT head who seemed to have the most insidious idea that by moving to the cloud, companies won’t ever have to worry about IT issues ever again. Various other chats reveal that people have somehow gotten into their minds that since their data or their servers or their applications are somewhere else, all their conventional technology issues are magically solved: cloud providers will back up the data, update software, deal with security issues, and so on. I hate to break it to you bud; nothing could be further from the truth.

For every layer of the cloud (Infrastructure-as-a-Service, Platform-as-a-Service or Software-as-a-Service), the limits of the responsibility of the provider are clearly defined. In the case of infrastructure (IaaS), this limit is the hardware environment: the provider will guarantee network and hardware availability, and nothing else. Any other functionality is the sole responsibility of the user. You must set up backup for your servers, define and enforce any security policies, keep the systems updated, and do any other conventional server management task.

On the platform layer (PaaS), their responsibility is expanded: vendors offer a computing platform, roughly equivalent to an operating system, on the cloud. Their responsibility, therefore, goes as far as the functionality they make available. If you’re using a platform’s storage services, they will take responsibility for the availability of the data, replicating it as necessary, as well as for the performance of storage operations, and so on.

Finally, on the software-as-a-service layer (SaaS), vendors will take full responsibility for the entire application environment. This means not only the availability of the application and the underlying data, but also all the necessary infrastructure to make sure that they don’t lose your data, are hacked, or suffer any other issues that compromise your ability to access and operate the software.

Be that as it may, recent data breach incidents have proven that no datacenter is out of reach. Hence,organisations should get serious about their backup and restore process.Assuming someone else is backing up for you is a sure recipe for disaster.Some of the most notable incidents of 2012 were:

• Global Payments (credit card processing), had hackers gain access to 1.5 million credit card numbers

• LinkedIn had 6.5 million hashed passwords stolen and published online

• eHarmony had 1.5 million passwords swiped

• Yahoo had nearly half a million usernames and passwords compromised

• New York State Electric and Gas had 1.8 million customer records hacked

• Zappos had upwards of 24 million shoe-buyers impacted by a data breach

• U.S. Army records for 36,000 military personnel were hacked

While the security implications of data breaches are clear, and tremendous damage was done, we also know that most compromised records were not lost. Hackers don’t generally destroy data. For the most part, they copy and keep the data they’re interested in exploiting for future gain.

But that’s not always the case, as we learned when Wired writer Mat Honan had his accounts, which had been backed up to the cloud, hacked and deleted. As a result, Honan lost all of the data on his smartphone, tablet, and laptop – all of his e-mails,contacts, documents, and most unfortunately, the photos that recorded the first year in the life of his daughter.

What made the Honan case particularly compelling is that Mat, just like many of  us, assumed that he was covered by having multiple copies of his data. Between his smartphone, tablet, and laptop, he had layers of data storage duplication. On top of this he assumed that by backing up to the cloud he was safe. Who would think to ask if the cloud itself is backed up?

MY ADVICE

A wise college professor once told me; "To get new ideas, read old books",  thinking of a solution to this tech quagmire takes me back to my college Sophomore year; organizations shouldn't break from the classic Father-Grandfather- Son backup strategy even whilst enlisted in a cloud service. the surefire way to protect your organization's data(whether you adopt a public cloud, private cloud or hybrid infrastructure) is to take responsibility for your own backup.

Whether you do it yourself or use a backup as a service (BaaS) strategy, the time to implement your backup strategy is now!

For the love of Technology

As a friend of mine cared to remind me;The content above is simply "my opinion" to be weight alongside varying opinions and the facts therein.

Virtualization;the Ace Technology

I know u guys were expecting the sequel to my june 24 post about cloud computing. So as not to be guilty of putting the cart before the horse,i would lets first look at a veritable tool for driving efficient cloud computing, 'SERVER VIRTUALIZATION'.

Today’s datacenter is a complex ecosystem with different kinds of servers,operating systems, and applications interacting with a wide variety of desktop computers and mobile client computers. For IT departments, managing and supporting this assortment of mission-critical technologies is a challenge.

Deploying server virtualization technology—moving disparate servers to virtual machines (Virtual
machines) in a centrally managed environment—is an increasingly popular option for facing this challenge.

Virtualization reduces IT costs, increases hardware utilization, optimizes business and network infrastructure, and improves server availability.
Windows Server® 2008 includes Hyper-V (formerly codenamed viridian), a powerful virtualization technology that enables businesses to take advantage of the benefits of virtualization without having to buy third-party software.

The most widely leveraged benefit of virtualization technology is server consolidation, enabling one server to take on the workloads of multiple servers. For example, by consolidating a branch office’s print server, FAX server, Exchange server, and Web server on a single Windows Server, businesses reduce the costs of hardware, maintenance, and staffing.

Microsoft’s virtualization strategy includes five key components:


• Server virtualization, enabling multiple servers to run on the same physical server

• Presentation virtualization, enabling remote users to access their office desktops or serverbased applications

• Desktop virtualization, enabling desktop operating systems to be consolidated into the datacenter

• Application virtualization, helping to prevent conflicts between applications on the same PC

• Comprehensive management, tying virtual components into the same management tools used to monitor and control physical components


Server Virtualization


Microsoft has two server virtualization offerings: Hyper-V in Windows Server 2008, and Virtual Server 2005 R2. Hyper-V extends virtualization capability to manage 32-bit Virtual machines alongside 64-bit Virtual machines, enable Virtual machines to access larger amounts of memory, and enable Virtual machines to leverage multiple processors. Virtualization is a key feature of the operating system and helps customers get complete isolation of the different virtual machines and still benefit from server consolidation.

Desktop Virtualization


When server virtualization is used host client OSes for remote access, this approach is often called desktop virtualization. While the principles of desktop virtualization are similar to server virtualization, this approach can be useful in a variety of situations. One of the most common is to deal with incompatibility between applications and desktop operating systems. For example, suppose a user
running Windows Vista needs to use an application that runs only on Windows XP with Service Pack 2.
By creating a VM that runs this older operating system, then installing the application in that VM, this problem can be solved. Microsoft VirtualPC is an example of a solution in this space to help address th scenario for hosting VMs in a desktop environment for application compatibility.

Application Virtualization

Application virtualization helps isolate the application running environment from the operating system install requirements by creating application-specific copies of all shared resources and helps reduce application to application incompatibility and testing needs. With Microsoft SoftGrid, desktop and network users can also reduce application installation time and eliminate potential conflicts between
applications by giving each application a virtual environment that’s not quite as extensive as an entire virtual machine. By providing an abstracted view of key parts of the system, application virtualization reduces the time and expense required to deploy and update applications.

Presentation Virtualization


Presentation virtualization is a technology that enables applications to execute on a remote server, yet display its user interface locally. Microsoft’s presentation virtualization technology, Microsoft Terminal Services, enables remote users to connect to their office desktops from anywhere in the world, taking full advantage of applications, resources, and familiar interfaces even from computers with different operating systems or system capabilities. Administrators can access system management tools from remote locations, for example, or applications can be run on a server and accessed by remote users.
Presentation virtualization enables customers to centralize and secure data, reduce cost of managing applications, reduce test costs for compatibility between the OS and applications, and potentially improve the performance of systems overall.

Comprehensive Management in a Familiar Environment


Virtualization technologies provide a range of benefits. Yet as an organization’s computing environment gets more virtualized, it also gets more abstract. Increasing abstraction can increase complexity, making it harder for IT staff to control their world. The corollary is clear: If a virtualized world isn’t managed well, its benefits can be elusive.To a large degree, the specifics of managing a virtualized world are the same as those of managing a

physical world, and so the same tools can be used. To this end, Windows Server virtualization and the Microsoft System Center family of products includes many management features designed to make managing virtual machines simple and familiar while enabling easy access to powerful VM-specific management functions.
culled from: hyper-v product overview.
                   by microsoft corporation,October 2008