You’re in!

This month I was accepted as a vExpert for the first time! In total VMware announced 233 new vExperts this summer for their second half announcement in the program.

The vExpert program is not a technical certification. VMware states: The judges selected people who were particularly engaged with their community and who had developed a substantial personal platform of influence in those communities.

I am very proud and honored to be included in this community. I have for a long time consumed the content produced by many of these great contributors and talented individuals and now to be a part of the same is humbling but also a great achievement for me. ...  continue reading

Upgrading to HPE OneView 4.1 – Failed!

After the release of the new and shiny version 4.1 of HPE OneView we have tried to upgrade one of our (smaller) OneView instances.

The update process is usually quite straight forward and it gets better in every release. The upgrade to 4.0 from 3.x had some issues with certificate handling post-upgrade, but it was manageable.

The upgrade from 4.0 to 4.1 should not be affected by the same so I had great hopes about a smooth upgrade. ...  continue reading

Limiting disk i/o in vSphere

As a Service provider we need to have some way of limiting individual VMs from utilizing too much of our shared resources.

When it comes to CPU and Memory this is rarely an issue as we try to not over-committing these resources, at least not the Memory. For CPU we closely monitor counters like CPU Ready and Latency to ensure that our VMs will have access to the resources they need.

For storage this can be more difficult. Where we usually have 50-60 VMs on a host we will probably have hundreds on a Storage Array (SAN). Of course the SAN should be spec’ed to handle the IOPS and Throughput you need, but you also need to balance the amount of disk space available and maybe most importantly, the cost. Add to this that storage utilization often will be intermittent and bursty hence even more difficult to plan and control. ...  continue reading

Slides and scripts from VMUG sessions

I had the privilege of delivering 3 sessions at VMUG Norway this week in Oslo, Trondheim and Bergen.

With the extremely nice weather in Norway this week in mind the attendance were great and as always the discussions were valuable.

My session on vSphere Performance monitoring were the short version of the blog series I did about how we built our solution for doing performance monitoring of vSphere with InfluxDB and Grafana, and how we easily can customize with adding metrics and datasources. ...  continue reading