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Author: Grzegorz Juszczak

Extending Minimum Time Between IPMI Operations in OpenStack Ironic

September 29, 2018September 30, 2018 No Comments

In TripleO based installations of OpenStack the deployment of Overcloud nodes is coordinated by so called Ironic module, which was developed in general to deploy OS on bare metal servers. There is a number of IPMI (Intelligent Platform Management Interface) […]

Grzegorz Juszczak Cloud Computing, Linux

OpenStack Pike TripleO Undercloud and Overcloud Deployment on 3 Bare Metal Servers

July 18, 2018February 24, 2019 3 Comments

Nowadays Packstack based OpenStack installations are used for proof-of-concept and demonstration purposes only. The official RDO community points TripleO (OpenStack On OpenStack) as a recommended OpenStack deployment method for production cloud. TripleO is an automated installation tool, based on Ironic […]

Grzegorz Juszczak Cloud Computing, Linux

Enable UEFI for QEMU KVM on Fedora

May 31, 2018June 2, 2018 No Comments

UEFI (Unified Extensible Firmware Interface) has become a successfull successor of an outworn and obsolete BIOS firmware. Emulating UEFI based hardware on KVM/QEMU Virtual Machine is possible thanks to so called OVMF (Open Virtual Machine Firmware), which comes from EDK2 […]

Grzegorz Juszczak Linux, Virtualization

How to configure Docker Proxy on CentOS 7, RHEL 7

May 25, 2018May 25, 2018 1 Comment

How to enable Proxy for Docker engine with or without authentication on CentOS 7, Red Hat Enterprise Linux 7?

Grzegorz Juszczak Linux, Virtualization

CentOS 7 Installation with LVM RAID 1 – Mirroring

March 31, 2018June 9, 2018 3 Comments

CentOS 7 may offer us a possibility of automatic RAID configuration in Anaconda installer, that is during OS installation, once it detects more than one physical device attached to the computer. Mentioned RAID is generally the LVM-RAID setup, based on […]

Grzegorz Juszczak Linux, Storage

MariaDB high CPU usage in OpenStack Pike

January 6, 2018March 31, 2018 7 Comments

Testing OpenStack Pike after Packstack based deployment I realised MySQL daemon was utilizing 100% CPU resources without any specific reason, but I had never faced such problem before in previous OpenStack releases. The problem also has never appeared during my […]

Grzegorz Juszczak Cloud Computing, Linux

OpenStack Pike VLAN and Flat network based installation using Packstack

December 30, 2017January 25, 2018 5 Comments

In previous articles regarding OpenStack RDO installations we presented OpenStack deployments using Packstack automated installer script, which still required some post-installation networking configuration to be performed in order to accomplish whole deployment. This time we will try to prepare Packstack […]

Grzegorz Juszczak Cloud Computing, Virtualization

How to find qbr,qvo interfaces of the particular Instance in OpenStack

November 20, 2017November 22, 2017 No Comments

OpenStack networking topology is pretty complicated structure, even with it’s, let’s say, default configuration based on OVS (OpenVSwitch), not even mentioning about additional overlays, like OpenDaylight or Nuage. If you are troubleshooting network issues in regard to a particular Instance […]

Grzegorz Juszczak Cloud Computing, Virtualization

RAID 1 configuration on HP Proliant Gen 9 server using HP SSA

October 31, 2017March 16, 2020 1 Comment

HPE Smart Storage Administrator is a tool that allows to quickly configure and manage storage controllers on HPE Proliant servers. HPE SSA offers simple, intuitive and easy to use GUI interface to quickly create, modify and erase storage arrays based […]

Grzegorz Juszczak Storage

Deploy project tenant in OpenStack using Heat orchestration stack

February 13, 2017March 11, 2017 No Comments

Heat is an OpenStack Orchestration service, which implements an orchestration engine to launch multiple composite cloud applications based on templates in the form of text files that can be treated like code. Heat service is able to read YAML (.yaml, […]

Grzegorz Juszczak Cloud Computing, Linux

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