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Erik Zandboer runs Konversations around all things Kubernetes in a Cloud-Native world.

Tag: active/active

December 11, 2023December 11, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, powerstore, stretch, witness1 Comment on Blog Series: Metro – Break Stuff 5 – Failing a PowerStore

Blog Series: Metro – Break Stuff 5 – Failing a PowerStore

In the last episodes we failed an entire datacenter with and without a witness. This time we will be failing a PowerStore

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December 1, 2023December 1, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, powerstore, stretch, witness1 Comment on Blog Series: Metro – Breaking stuff 4: Failing DC + witness

Blog Series: Metro – Breaking stuff 4: Failing DC + witness

In the previous episode we shut down an entire datacenter. AS we did not have a witness service present, the recovery wasn’t

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November 29, 2023November 29, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, powerstore, stretch, witness3 Comments on Blog Series: Metro – Breaking stuff 3: Failing DC, no witness

Blog Series: Metro – Breaking stuff 3: Failing DC, no witness

In the previous episode of breaking stuff we powered off all hosts in one of the datacenters… Not really eventful as we

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November 24, 2023November 24, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active-active metro, active/active, breaking stuff, failure scenarios, metro, powerstore, stretch, witness2 Comments on Blog Series: Metro – Breaking stuff 2 – Fail all hosts in a DC

Blog Series: Metro – Breaking stuff 2 – Fail all hosts in a DC

After we killed the datacenter interlink in the last episode, today we will be pulling the power from all hosts in one

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November 20, 2023November 20, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, breaking stuff, metro, powerstore, stretch, witness2 Comments on Blog Series: Metro – Breaking stuff part 1 – Interlink failure

Blog Series: Metro – Breaking stuff part 1 – Interlink failure

Now that have are done describing the lab in the last episode, we are ready to go out and break stuff! Today

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November 15, 2023November 15, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, powerstore, stretch, witness2 Comments on Blog Series: Metro – Lab Setup overview and walkthrough

Blog Series: Metro – Lab Setup overview and walkthrough

In this episode we will be leaving the History of Metro (which I covered in part1, part2 and part3). Let’s look at

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November 8, 2023November 13, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, non-uniform, powerstore, stretch, uniform, witness5 Comments on Blog Series: Metro – A brief history of Metro pt.2

Blog Series: Metro – A brief history of Metro pt.2

In the previous “a brief history of metro” blog post (part 1) I discussed replication and metro and how they are “the

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October 6, 2023October 6, 2023 Erik Zandboer Multi-site k8s, Storage Architecture active/active, active/active metro, metro, metro service, multi-site, powerstore, powerstore metro, witnessLeave a Comment on Dell Powerstore 3.6 adds Witness to Metro

Dell Powerstore 3.6 adds Witness to Metro

So excited to see this: Witness support on Metro for the PowerStore Platform! I recorded a quick video to show you why

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September 8, 2023September 8, 2023 Erik Zandboer Dell CSM, Multi-site k8s, Storage Architecture active/active, active/active metro, dell csm, metro, multi-dc, replication, resiliency, stretchLeave a Comment on CNA resiliency: Replication, Metro, Stretching K8s?!

CNA resiliency: Replication, Metro, Stretching K8s?!

There are many ways to obtain resiliency in the world of cloud-native applications. Some prefer to handle everything in the app-layer (this

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