Home
  • Pi Supercomputer

    Mar 30, 2021 raspberry performance python
    Pi Supercomputer

    Following on from base Ubuntu build here I begin to look at Parrallel Programming. Parrallel Programming Each Raspberry Pi is a small unit of compute, one of my goals is to understand how operating many in a cluster. There are various approaches to parallel computational models, message-passing has proven to be an …

    Read More
  • Comparing SD and USB 3 Storage Performance With Raspberry Pi4B

    Mar 29, 2021 raspberry performance
    Comparing SD and USB 3 Storage Performance With Raspberry Pi4B

    Following on from base Ubuntu build here I look at the comparing the storage performance of SD and USB. SD Card Performance Linux FIO tool will be used to measure sequential write performance of a 4GB file: fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 …

    Read More
  • Raspberry Pi Cluster Ubuntu Base

    Mar 28, 2021 raspberry
    Raspberry Pi Cluster Ubuntu Base

    Following on from Raspberry Pi Cluster here I look at the base Ubuntu build. Install and Configure I used Raspberry Pi imager to install the Ubuntu 20.10 64bit on each SD Card. Insert these into the Pi’s and power them on. The image is configured with DHCP client, Pi device MAC addresses are prefixed DC:A6:32. I …

    Read More
  • Raspberry Pi Cluster Hardware

    Mar 27, 2021 raspberry
    Raspberry Pi Cluster Hardware

    I have worked most of my professional life with systems built with Intel x86, x64 and ia64 chips. Intel processors use Complex Instruction Set Computing while Arm uses Reduced Instruction Set Computing. Processors with CISC architecture look to move complexity to hardware to simlify code, so small code sizes with high …

    Read More
  • vSphere with Kubernetes Homelab Build

    Apr 29, 2020 tanzu kubernetes vsphere
    vSphere with Kubernetes Homelab Build

    I’d been exploring Project Pacific during its beta in my homelab for a while. When vSphere 7 and NSX-T 3.0 went GA I took chance to rebuild lab and consolidate much of the configuration I’d been applying iteratively. My lab hardware specification is a constraint so I’ve had to deviate from …

    Read More
  • Introduction To Kubernetes Cluster Networking with NSX-T

    Dec 31, 2019 kubernetes nsx
    Introduction To Kubernetes Cluster Networking with NSX-T

    When developing a cloud native application using Docker containers she soon needs to understand how Docker containers communicate. In previous post I looked at how Docker containers communicate on a single host. When the developer wants to scaleout capacity of the hosting across multiple hosts or increase abailability …

    Read More
  • NSX-T for Planespotter

    Feb 14, 2019 nsx flask planespotter
    NSX-T for Planespotter

    Moving towards application centric infrastructure suitable for microservices applications requires a good example application to work with. I saw an NSX demo presented by Yves Fauser where he used just such an application called planespotter. My first task towards understanding this more was to get this setup in my …

    Read More
  • NSX-T for OpenShift

    Jul 28, 2018 nsx openshift kubernetes
    NSX-T for OpenShift

    While looking at the various documentation sets I found it difficult to understand the NSX-T and OpenShift integration. A lot was masked by configuration performed by Ansible scripts. Here I try and record my understanding of the technology and then work through getting this running in a capacity constrained lab …

    Read More
  • Intel NUC Cluster Hardware

    Apr 16, 2015 nuc
    Intel NUC Cluster Hardware

    I have worked most of my professional life with systems built with Intel x86, x64. Often there is little hardware available in the work environment to learn and try out new things. I enjoy learning by doing and to begin to better understand the technology looked to build a cluster of Intel NUCs. My goals of cluster …

    Read More

Darryl Cauldwell

Technologist, perpetual student, teacher, continual incremental improvement.
Read More

Featured Posts

  • Raspberry Pi Cluster Hardware
  • Avi Load Balancer
  • The DevOps Infrastructure Architect
  • Intel NUC Cluster Hardware

Recent Posts

  • Pi Supercomputer
  • Comparing SD and USB 3 Storage Performance With Raspberry Pi4B
  • Raspberry Pi Cluster Ubuntu Base
  • Raspberry Pi Cluster Hardware
  • Customizing Zsh Prompt
  • Running Linux on iPhone
  • Avi Load Balancer
  • Introduction To Kubernetes Cluster Networking with Antrea

Categories

AUTOMATION 33 NETWORKING 18 HOMELAB 9 CERTIFICATION 7 STORAGE 5 HANDY-HACKS 4 RASPBERRY 4 ARCHITECTURE 2 SUSTAINABILITY 2 BLOGGING 1 VSPHERE 1

Tags

NSX 15 VSPHERE 13 AWS 10 PYTHON 7 ANSIBLE 6 DOCKER 6 DEVOPS 4 KUBERNETES 4 PERFORMANCE 4 RASPBERRY 4 VCIX 4 VM-GUEST-CUSTOMIZATION 4 WINDOWS 4 DYNAMODB 3
All Tags
ANSIBLE6 ANTREA1 ARCHITECTURE2 AVI1 AWS10 CLOUD-ASSEMBLY1 CLOUD-INIT1 CLOUDBASED-INIT1 CLOUDFORMATION1 DEVOPS4 DFW2 DOCKER6 DYNAMODB3 ENCRYPTION1 FLASK1 HANLON1 HPE1 INDEX1 IOS1 JEKYLL1 KUBERNETES4 LAMBDA1 LOAD-BALANCER1 MACOS1 MIGRATION1 NETAPP2 NSX15 NUC1 OPENSHIFT1 OPENSTACK2 OVFTOOL1 PELOTON1 PERFORMANCE4 PLANESPOTTER1 POSTMAN1 POWERSHELL3 PUPPET1 PYTHON7 RASPBERRY4 REST2 SUSTAINABILITY2 TANZU1 TCP1 TERRAFORM1 TIME-MANAGEMENT1 VCAP1 VCD1 VCDX1 VCIX4 VIRTUSTREAM1 VM-GUEST-CUSTOMIZATION4 VPC1 VRA2 VRLI2 VRO3 VROPS1 VSAN2 VSPHERE13 VVOLS1 WINDOWS4
[A~Z][0~9]

Copyright  . All Rights Reserved