sepago Blog

Change vSphere Cluster EVC mode
Published by Thomas Franke on 10/31/2014 | 0 Comments | 236 Views

Today we will have a look at the “Enhanced vMotion Compatibility” feature. EVC can limit CPU capabilities to make different CPU generations compatible. As a result, you can combine hosts with differing CPUs in a single cluster and use vMotion for your VMs.

VMware EVC can be enabled within the cluster settings and can be set to different modes either for AMD or Intel CPUs. A combination of different CPU vendors is not possible.

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vCenter 5.5 "Datastore Usage" Alarm Issue
Published by Thomas Franke on 10/19/2014 | 0 Comments | 263 Views

In the past, I had several customers with an vCenter alarm issue. The "Datastore Usage" alarm worked fine for a while, e. g. for two weeks. Then the alarm suddenly hung up, which means that the status of the datastores was not actualized anymore. A datastore with a warning continued to show the warning even if space was freed below the configured trigger, and a datastore with status ok continued to show this status even if free storage space was getting low.

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Delayed permissions with vSphere SSO?
Published by Thomas Franke on 10/13/2014 | 0 Comments | 261 Views

Sometimes vSphere Single-Sign-On does not work as I expect it to. Here is an example:

A few days ago, I had to assign vCenter access rights to several users. In the vCenter server, the according permissions were given to an active directory user group. In theory, all I had to do was to add the users to the AD group and tell them to log off and on again.

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Determine ESXi network driver version
Published by Thomas Franke on 09/30/2014 | 0 Comments | 396 Views

Did you ever have ESXi NIC driver issues like this one?

Broadcom 5719/5720 NICs using tg3 driver become unresponsive and stop traffic in vSphere (2035701)

Do your hosts run with different driver versions, because you have a mixture of new installed and updated systems?

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PowerCLI Language Issues
Published by Thomas Franke on 08/20/2014 | 0 Comments | 627 Views

We all know that translations can be kind of tricky. German versions of books, certification exams, dialoge windows, error messages and so on are sometimes strange, unclear or even completely wrong. I assume this is valid for other languages, too.

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Selecting clusters and hosts with a text-based menu
Published by Thomas Franke on 08/01/2014 | 0 Comments | 720 Views

Perhaps you know the PowerCLI command Connect-VIServer –Menu, which offers a text-based menu to choose a vCenter server or ESXi host to connect to. That is very handy if you run scripts on various targets, because you don’t have to hardcode hostnames and modify your scripts on each execution.

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Configure Syslog
Published by Thomas Franke on 07/20/2014 | 0 Comments | 797 Views

Using a Syslog server with your ESXi hosts can save you a lot of time in troubleshooting because all logs are written to a central location. It’s even more important if the boot devices of your hosts are either non-redundant or non-local, because in case of a boot device failure, your host will stop writing logs at all.

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Scripting ESXi Advanced Settings
Published by Thomas Franke on 07/03/2014 | 0 Comments | 832 Views

Working with ESXi advanced settings is a common administrative task. If only one host is affected, you’ll probably use the vSphere client to do this. But if you want to process more than one host, using PowerCLI can save you a lot of time.

This post shows how to check or modify these settings by PowerCLI scipts.

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About vCenter connections
Published by Thomas Franke on 06/24/2014 | 0 Comments | 920 Views

The first step in automating tasks with VMware PowerCLI is to open a connection to an ESXi host or vCenter server. This post shows how to do that and a few things you should be aware of.

Connect-VIServer

To open a vCenter or ESXi connection in PowerCLI is very easy. Just start a PowerCLI console and enter the following command

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sepago Jahresrückblick- Das war 2013
Published by Johanna Hovestaedt on 06/05/2014 | 0 Comments | 1,178 Views

Ein Blick hinter die Kulissen

Januar: Dia-Abend

Es schneit, die Schneeflocken legen sich sanft auf die Straßen Kölns, der Winter zeigt sich von seiner besten Seite. Doch in den Räumen der sepago herrscht Urlaubsfeeling - vielfältige Blumenpracht, exotische Tierarten, sonnige Landschaften. Reger Austausch über ferne Länder und Kulturen. Beim sepago Dia-Abend zeigen Mitarbeiter tolle Fotografien ihrer Urlaubsreisen von Australien, über Costa Rica und Thailand, bis hin nach Afrika. Jede einzelne hat ihre ganz individuelle Geschichte.

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