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Daniel Nachtrub

Daniel Nachtrub

Kind of likes computers. Linux foundation certified: LFCS / CKA / CKAD / CKS. Microsoft certified: Cybersecurity Architect Expert & Azure Solutions Architect Expert.

postgres - database has no actual collation version, but a version was recorded

postgres - database has no actual collation version, but a version was recorded

Upgrading a major postgres version using containers with different C libraries caused me some headaches because I go an error "database has no actual collation version, but a version was recorded" - and I did not fix it. At least I can give a hint on why it happend and how you could avoid it.

Daniel Nachtrub
Daniel Nachtrub
Container
postgres - upgrading postgres with timescaledb running in a container

postgres - upgrading postgres with timescaledb running in a container

Uprading postgres with timescaledb caused me some issues related to the collation. After some retries I've found a reliable way to doing the upgrade. This post describes the steps to be done.

Daniel Nachtrub
Daniel Nachtrub
Database
Using storage caching on a standalone windows server

Using storage caching on a standalone windows server

Sometimes you are still facing standalone systems that need to provide storage based services - like backup targets. Running this on Windows Server offers your the option to use StorageBusCache to provide awesome speed.

Daniel Nachtrub
Daniel Nachtrub
Windows
Why you should use rook ceph on kubernetes (onprem)

Why you should use rook ceph on kubernetes (onprem)

If you run kubernetes on your own, you need to provide a storage solution with it. We are using ceph (operated through rook). This article gives some short overview about it's benefits and some pro's and con's of it.

Daniel Nachtrub
Daniel Nachtrub
Cloud
Windows 11 - enable seconds on clock (again) - may 2023 update

Windows 11 - enable seconds on clock (again) - may 2023 update

Windows 11's patch of may 2023 brings back seconds to the system-clock - if you enable it through registry. Let's do this!

Daniel Nachtrub
Daniel Nachtrub
Windows
Configure maximum live migrations on Windows Server 2022 (cluster) / Azure Stack HCI

Configure maximum live migrations on Windows Server 2022 (cluster) / Azure Stack HCI

Just a very quick information. In case you are running a Windows Server 2022 based cluster (the same applies to Azure Stack HCI) and you wonder why it keeps reverting the per-host configuration of live-migrations (like if you set it using Set-VMHost), the reason is that this setting is nowadays

Daniel Nachtrub
Daniel Nachtrub
Migrate a netadapter configuration in an atomic command

Migrate a netadapter configuration in an atomic command

You know the situation: You need to perform multiple commands that will disconnect you in the middle. Functions to the rescue!

Daniel Nachtrub
Daniel Nachtrub
Network
Kubernetes v1.27 - what's new

Kubernetes v1.27 - what's new

Kubernetes 1.27 is released! Having the fancy name Chill Vibes it brings up to 60 enhancements. I've picked a few to highlight them in this post. Image registry change to registry.k8s.io This change has been active for several months already - the kubernetes image registry

Daniel Nachtrub
Daniel Nachtrub