The Truth About Cloud Economics – Drue Reeves and Daryl Plummer – Harvard Business Review

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The Truth About Cloud Economics – Drue Reeves and Daryl Plummer – Harvard Business Review.


Clearing the Cloud on Cloud

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The term “cloud computing” is a collective phrase used to define the computing environment in which an application or service delivered is created to be independent of physical location of the hardware used to store the content. According to the National Institute of Standards and Technology, cloud computing is defined as “Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.” This article is intended to present the general concepts of cloud computing and explain these concepts in relation to computing requirements and experiences of end-users, IT professionals, and business management.

Click here to download APF formatted PDF version of the article.

Cloud Delivery Models

Cloud services are delivered by one of the three primary service models based on the type of service delivered. The delivery models are Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). These models are collectively referred to as the SPI model.

Software as a service (SaaS)

SaaS is a cloud delivery model in which the service provider hosts and manages the applications, and provides the use of these applications or services to customers over the Internet. The physical location of the files, servers, and even the datacenter is “clouded” from the user and the user only experiences availability of the service from the provider.

Platform as a service (PaaS)

PaaS provides an online platform delivered over the web to develop and deploy applications without the need to manage the underlying servers, network infrastructure, and applications. More

Configuring NC365T Network Adapter with VMware ESXi 4.1

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Intel NC365T network adapter (Intel 82576 and 82580 Gigabit Ethernet Controller) is not identified during standard installation of VMware ESXi 4.1. The installation may also show the adapter incorrectly identified as Broadcom iSCSI adapter.

To correctly identify and configure the NC365T as a network adapter, network adapter device drivers have to be manually installed. In ESXi version, VMware CLI utility is also required to upload drivers to VMware installation.

The correct driver for NC365T are included with VMware ESX/ESXi 4.x driver CD for Intel 82576 and 82580 Gigabit Ethernet controller, ISO image of the CD and can be downloaded from VMware site at

VMware CLI utility can be downloaded from

Installation Procedure:

· Copy driver zip file from CD image to VMware CLI installation folder under Bin directory.

· Set VMware ESXi server in maintenance mode

· Accept confirmation for maintenance mode.

· Start VMware CLI utility and execute the update command. Enter password when prompted and wait for update to complete.

· Enter password when prompted and wait for update to complete.

· Reboot ESXi host

· All NC365T network adapters will be correctly identified after reboot.

Transformative Times: New Opportunities for Business in an Era of Upheaval – Knowledge@Wharton

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Transformative Times: New Opportunities for Business in an Era of Upheaval – Knowledge@Wharton.

Hidden network adapter in Windows after VMware P2V or V2V

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After performing a P2V or V2V for a Windows server, you get an error message as

“The IP address aaa.bbb.ccc.ddd you have entered for this network adapter is already assigned to another adapter which is no longer present in the computer. If the same address is assigned to both adapters and they both become active, only one of them will use the address. This may result in incorrect system configuration.”

In Windows 2008, you get an option to remove the static IP address from the absent adapter. Selecting this option will remove the static IP address configuration from the missing adapter, but will not remove the adapter configuration from the device manager.

In earlier versions of Windows, the option of removing static IP address from missing adapter is not available.

The problem is because Windows detects a new network adapter after P2V process is completed, but the drivers of the original adapters are still presents in the system. The original NIC is hidden in the system configuration and has to be removed to resolve the issue.

To resolve the problem, you have to remove the hidden network adapter from system configuration.

  • Log on to the server using administrative account.
  • Start Command Prompt
  • At the command prompt type set devmgr_show_nonpresent_devices=1
  • In the same command window type Start devmgmt.msc

  • In device manager, select View –> Show hidden devices
  • Expand Network adapters
  • Right click and Uninstall the dimmed network adapter.

  • Close Device Manager and Command window.

You should now be able to assign the IP address to the newly identified network adapter.

Silicon Valley VMware User Group (VMUG) Regional User Conference

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Just returned from Silicon Valley VMware User Group (VMUG) Regional User Conference. It was a fabulous event showcasing products and technologies leading the path to virtualization.

It is not possible and practical to implement all technologies into my datacenter, but knowing the direction of innovation will help in designing comprehensive datacenter strategy and benefit from the new technologies and products available

In addition to server virtualization, storage virtualization, network virtualization, and Virtual Desktop Infrastructure (VDI) were the prevalent product technologies – No surprises here.

The presentation of Virtensys I/O virtualization was very impressive and Power-CLI session was superb and provided new resources for scripting and automating VMware administration.

Companies to watch:

In his keynote speech VMware CTO Steve Herrod introduced the term SuperVM – Sounds interesting….

VMware ESX 4.1 Installation, Using NC522SFP 10GB Ethernet Adapter Freezes at 29%.

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While installing VMware on HP DL xxx servers with NC522 SFP 10GB Ethernet adapter, the installation freezes at 29% during the process of loading networking drivers.

Additionally, if you remove the 10GB adapters and install VMware, the installation will crash after you add the 10GB adapters again.

In the earlier days, NC522SFP 10Gbe adapter were not supported by VMware, but with the new version these adapters are supported.

To resolve this issue, you need to install additional drivers when prompted to install additional third party drivers during VMware installation.

These drivers can be downloaded from

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