Exploring the HPE G2 PDU REST API

Lately I’ve been playing around with the Redfish based REST API in the HPE G2 Metered and Switched Power Distribution Units.

Through the API you are able to pull some details about the PDU as well as different utilization data. Based on your PDUs capabilities you should also be able to control different outlets. My focus has been to pull some details about the PDUs, and to pull the load on the different segments.

As I usually do when I set out exploring an API I was looking for the documentation. Surprisingly there was nothing to be found. The only thing I found was a few lines in the PDU User guide regarding authentication.… continue reading

Automate disabling of IPMI over LAN access on HPE iLO

This article will describe how you can disable the IPMI over LAN access on HPE iLO.

The IPMI protocol can present a security vulnerability where the authentication process for IPMI requires a server to send a hash of a user password to the client before authentication. This is not a new vulnerability and since this is a part of the specification of the protocol there is no fix for it besides disabling it or accepting it.

Note that iLO versions 2, 3 and 4 have the IPMI over LAN access enabled by default whereas iLO version 5 has disabled this by default.… continue reading

Extending the firmware repository in HPE OneView

This is a short post on how to extend the internal firmware repository in HPE OneView.

The procedure is documented in the installation guide for 3.0, but if you are like me chances are that you don’t have that lying around so I thought I’d write up a short post on it for future reference.

The process is pretty straight forward:

  • Shut down the appliance
  • Extend the hard disk to 275GB*
  • Start the appliance
  • The repository should be extended, if not do a manual restart
  • Note that the disk needs to be minimum 275 GB for the repository to be extended, and that anything more than 275GB will be wasted space

For reference, check out this HPE Advisorycontinue reading

Slides from my VMworld session

Last week I did a session about Performance monitoring at VMworld Europe in Barcelona. The session was part of the VMTN Techtalks with vBrownBag.

The slides (without the video demos) and the script used in the demo is available at Github.

The session was recorded and can be seen on Youtube.

Thanks to all that attended the session and to those watched it live on Twitch or have seen the recording afterwards. Also thanks to vBrownBag for giving me the opportunity.… continue reading

Welcome to VMworld

VMworld 2018 comes to an end

VMworld 2018 is over. As always I’m leaving with lots of great impressions and lots of content to digest and further explore over the coming weeks.

I think it has been even clearer after this year that VMware is focusing on their Cloud strategy together with partners like AWS and IBM, that vSAN is the storage solution they want you to go forward with and that together with NSX this will be the base for the future.

It was also interesting that only since last year the focus on Containers and Kubernetes has really picked up the pace with lots of new offerings and solution as well as the acquisition of Heptio.… continue reading

Upgrading the VCSA and converting to embedded PSC

This week I’ve been playing in our vCenter lab and tested the upgrade to 6.7 U1 and also changing the deployment type to vCenter with embedded PSC.

I must say that the vCenter team has done a great job on the upgrade process over the last year. Both our migration from the Windows vCenter to the VCSA as well as the upgrade of a VCSA works well and there are lots of great documentation.

Our lab deployment consists of one vCenter VCSA running 6.7 and an external PSC. Both have been migrated from a Windows vCenter and later upgraded to 6.7.… continue reading