Category: VMware

Planning and executing the vSphere Roadmap

BlogPost Series – Creating a Roadmap for vSphere Upgrades:
Phase 6 – Defining the Soll & Roadmap

Intro We covered quite some topics in the previous blogposts. We talked about how important the assessment phase is, which Technical & Common vSphere Challenges you could expect, and what the consequences are of certain choices and methods. We also talked about how you can define the “Ist”, and how it is a big part …read more →

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Solving Compatibility Challenges with VMware Validated Designs

BlogPost Series – Creating a Roadmap for vSphere Upgrades:
Phase 5.3 – Solving vSphere Compatibility Challenges with VVD

Intro VMware its product portfolio has grown immensely in the last several years. Most VMware products are designed to integrate & enhance each other but also to be compatible with one and another. However, it has become difficult to keep track of which versions of all the products are compatible and supported with each other. …read more →

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Common vSphere Upgrade Challenges

BlogPost Series – Creating a Roadmap for vSphere Upgrades:
Phase 5.2 – Common vSphere Challenges

Intro Upgrading and maintaining a vSphere environment is a broad topic that also can be difficult. As you probably have noticed already in the blogpost series, there are numerous ways of doing a vSphere upgrade, and each has its own benefits, drawbacks but also consequences. That’s why I’m so focused in this blogpost series on …read more →

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Troubleshooting: Cannot Add host “Authenticity of the host’s SSL certificate is not verified”.

Intro One of my customers wanted to change the hostname of the ESXi host. In this case, the ESXi hostname stayed the same, but it needed to become part of  a subdomain. Changing an ESXi hostname This can normally be easily done in the following way: Migrate VMs, offline VMs and templates of the host. …read more →

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BlogPost Series: LCM of VMware vSphere & HPE Hardware – Final Conclusion (Part 5)

Final Conclusion Like I said in the beginning of the blogpost series, Life Cycle & Patch Management is a difficult topic. Which can become a big headache when there are so many dependencies within the environment, especially if it hasn’t been maintained for a while. The bigger the Jump, the more difficult it gets. Therefore, …read more →

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BlogPost Series: LCM of VMware vSphere & HPE Hardware – Global LCM Plan & Order of Upgrading (Part 4)

Intro We’ve viewed the different tools that help to manage a HPE stack and if and how we could integrate VUM with this. We also discussed that consistency with virtualization & infrastructure is one of the most important things for having reliable operations, and that you need some sort of reporting tool that can give …read more →

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BlogPost Series: LCM of VMware vSphere & HPE Hardware – Scripts & Reporting Tools (Part 3)

Intro We’ve viewed the different tools that help to manage a HPE stack and if and how we could integrate VUM with this. During the project and our research, we found out that it is really difficult to see if the VIBs that are being deployed, are consistent with all the ESXi hosts of the …read more →

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BlogPost Series: LCM of VMware vSphere & HPE Hardware – LCM Tools Comparison & Review (Part 2)

Intro Life Cycle & Patch Management, can be achieved with different tools and methods with HPE and VMware. However, the number of available tools that can be used for LCM, can make it quite confusing of how and when these tools should be used. Especially when you install the CIM agent on the ESXi host, …read more →

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BlogPost Series: LCM of VMware vSphere & HPE Hardware – Basics (Part 1)

Intro Life Cycle & Patch Management within organizations can be a difficult topic. Mostly because of the broad set of software and hardware that can and should be included in a Life Cycle & Patch Management strategy. Still, due to the constantly changing landscape within the IT, this becomes more and more important. Security breaches …read more →

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VUM Error: Host cannot download files from VMware vSphere Update Manager patch store

Setup: vCSA 6.5 with embedded VUM Intro: At one of my customers, I had a weird problem that one of the hosts couldn’t updated through VUM. Time to investigate. Error: “Host cannot download files from VMware vSphere Update Manager patch store.  Check the network connectivity and firewall setup, and check esxupdate logs for details.” When …read more →

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