vcenter

Re-Installation of HyperFlex. The Unsupported Way !

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In my lab I do a lot of testing, demo’s which includes also an installation of a HyperFlex cluster. If you just do a re-installation of a HyperFlex cluster, you can get all kind of errors because there is still a lot of information saved on the Storage Controller and on the ESXi partition. There … Read more

Howto Move HyperFlex Cluster to New vCenter

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It’s possible that you installed the HyperFlex cluster and register it to a vCenter server and now you want to move it to another vCenter server. There are serveral reasons to do this. During the installation of HyperFlex, everything is done by the installer. Hosts were added, plugin was loaded. But how can you easily … Read more

Configure vCenter Appliance to use NTP

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When I installed vCenter appliance in the lab, I didn’t use a NTP server. (I know… STOOPID !!!) So how can you configure it afterwards ? Login to the vCenter Appliance. timesync.get will give you what mode the appliance is in. ntp.server.add –servers <NTP Server> will add a NTP server timesync.set –mode NTP will set … Read more

Testing Cisco Hyperflex Auto Healing

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Let’s break the Hyperflex system ! In the lab there is a 5 node Hyperflex cluster up and running. Everything is healthy and the system is almost for 60% filled, so that is closer to a real test then a lab test. There are several ways to break the cluster and I choose the easiest … Read more

Really ? 37 minutes to install Cisco Hyperflex ?

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Configuring the FI / UCS Manager

This week I went to a customer to install Hyperflex HX240 cluster with 4 nodes. Everything was already racked and stacked.

Hyperflex FI configuration
Hyperflex FI configuration

The first step is to configure the FI’s with ip addresses and a password. Just connect a console cable to the FI and your laptop. It’s easier to setup the FI-A and when the setup is finished then power on the FI-B. The procedure to setup a FI-B  is already described at : http://dcccie.joostvandermade.com/?p=25 

 

 

 

 

You should have the correct Firmware for the FI’s. Via the CLI or GUI you can upgrade the FI to the correct firmware. I prefer GUI although via CLI is also very easy. You can find the Dependencies int the Release Notes of Hyperflex

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Simplivity OmniStack installation

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We got a demo unit of Simplivity and some documentation, but unfortunally that documentation isn’t very clear. Maybe the docs at the site are good, but I don’t have access to that. After some time spending with support I created this article just for my own knowledge.

Here are the requirements before doing the steps below :

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