Category Archive: HA

Era Management Plane High Availability Version 2

With the release of Era version 2.3 in late September 2021, which i wrote a blog post about here, the Era Management Plane was improved when it comes to providing high availability (HA) meaning it does not include any single point of failure (SPOF) anymore. Era Management Plane consists of two service groups: Front-end services …

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Era Management Plane High Availability

With the release of Era version 2.2 in late June 2021, which i wrote a blog post about here, the Era Management Plane was improved when it comes to providing high availability (HA). Era Management Plane consists of two service groups: Front-end services (API, agent, web service). Back-end service (database or repository). Prior to Era …

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VMware stretched cluster and VM swap file placement

A few days ago i came across a VMware vSphere, version 5.5, stretched clusterΒ implementation that caught my attention. Background My customer uses the following setup: 8 ESXi version 5.5 hosts. 4 placed in Datacenter01 and 4 placed in Datacenter02 2 Storage systems. 1 storage node placed in Datacenter01 and 1 storage node placed in Datacenter02 …

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SMB vCloud Director design challenge – number of licenses

I have previously written about a vCloud Director (vCD) implementation where the vCD based VMs must coexists with traditional vSphere based VMs in the same vSphere cluster, post available here. A few days ago one customer added an even more interesting parameter to such a solution. The customer has an existing vSphere environment, running both …

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vSphere HA design consideration

I want to highlight a risk in one of my previous designs and also explain what you can do to avoid it, if you get approval from the customer. The VMware vSphere versions referenced in the blog post are VMware vCenter ServerΒ 5.1.0b 947939 and VMware ESXi server 5.1. Background Below i have listed a few …

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