Morning Hypertext Fragments

On the Principles of Applications.

Posted by in Architecture, Technology

As discussed previously, principles are high level statements of the fundamental values that guide business and technology decision-making and activities and are the foundation for architecture, standards, and policy development. Principles are stable enough to withstand technological and process changes but timely enough to maintain a clear relevancy with markets, policy, program, and management changes. Principles consist of the principle statement, rationale, and implications. Though the wording for principles should remain consistent, the rational and implications will evolve over time, as an organization responds to factors such as the current IT environment,…read more

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vSphere 5.x Datastore Cluster “Allocated Space” in the C# Client

Posted by in Technology, VMware

I ran across a wonky, albeit cosmetic, storage reporting error for Datastore Clusters on vSphere 5.x when using the vSphere Client (C#). When reviewing a Datastore Cluster in  the “Summary” tab under “Datastores and Datastore Clusters” it correctly reports a “Capacity.” However, when viewing the “Hosts and Clusters” tab under “Datastores and Datastore Clusters” the vSphere Client will incorrectly reports how much has been “Allocated.” For Example: If you have a ESXi cluster of 5 ESXi hosts and the cluster has access to 3 x 1TB Datastores in a Datastore Cluster, the Summary tab…read more

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Near Real-Time Host and Virtual Machine Metrics with PowerCLI

Posted by in Technology, VMware

Have you ever wanted to quickly return some key CPU, Memory, Disk and Network metrics across hosts in a matter of seconds? My customer and friend Vamshi Meda (@medavamshi) shared a very useful PowerCLI script that he wrote for some key near realtime (5min-interval) metrics for CPU, Memory, Disk and Network. This script will may assist help in troubleshooting a performance issue in near realtime. Download Get-Hosts_UsageStats.ps1 and run the following syntax: PowerCLI S:\> .\Get-Hosts_UsageStats.ps1 <hostname> A sample output is provided below. PowerCLI S:\> .\Get-Hosts_UsageStats.ps1 esx1* Name CPUUsageAverage% CPUReady% MemUsageAverage%…read more

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vSphere Auto Deploy Reverse Web Proxy Caching

Posted by in Technology, VMUG, VMware

Lately, I’ve been working with a customer on a vSphere 5.1 and 5.5 Auto Deploy environment. The environment is rather large, and each pod of compute/storage requires localized access to the ESXi VIBs during the boot process. This falls in line with the best practice outlined in the VMware vSphere Installation and Setup Guide. Auto Deploy Load Management Best Practice Simultaneously booting large numbers of hosts places a significant load on the Auto Deploy server. Because Auto Deploy is a web server at its core, you can use existing web server scaling…read more

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vCloud Automation Center 5.2 End of General Support Extended

Posted by in Technology, VMware

As you may be aware, VMware vCloud Automation Center 5.2 was released on 2013-09-19 and was quickly followed by the 6.0 release on 2013-12-10. After which, the the End of General Support for 5.2 was slated for 2014-12-10. Many customers were well into their 5.2 deployments, custom integrations and professional services engagements by the time of the 6.0 release. With no direct migration path at this time between 5.2 and 6.0 this looming End of General Support for 5.2 was a concern for many customers. Customer advocacy is a pivotal…read more

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