VMware ESXi - Intel and Qlogic NIC throughput difference v0.6David Pasek
We are observing different network throughputs on Intel X710 NICs and QLogic FastLinQ QL41xxx NIC. ESXi hardware supports NIC hardware offloading and queueing on 10Gb, 25Gb, 40Gb and 100Gb NIC adapters. Multiple hardware queues per NIC interface (vmnic) and multiple software threads on ESXi VMkernel is depicted and documented in this paper which may or may not be the root cause of the observed problem. The key objective of this document is to clearly document and collect NIC information on two specific Network Adapters and do a comparison to find the difference or at least root cause hypothesis for further troubleshooting.
Troubleshooting Strategies for CloudStack Installations by Kirk Kosinski buildacloud
The document provides troubleshooting strategies for CloudStack installations, including network issues, security groups, host connectivity, virtual routers, templates, and log analysis. It discusses common problems such as VLAN misconfigurations, security group rules not being applied, hosts showing in the "avoid set", template preparation errors, and exceptions in the logs. It emphasizes analyzing logs at the management server, hypervisor, and job levels to find the root cause of failures.
[KubeConEU] Building images efficiently and securely on Kubernetes with BuildKitAkihiro Suda
https://sched.co/MPX5
BuildKit is a modern container image builder that focuses on efficiency and security, mostly known as the backend of Docker 18.06+ and Jessie Frazelle's `img`. (But it is even useful as a standalone tool!)
In this talk, Akihiro Suda, one of founding maintainers of BuildKit, shows practical tips for running BuildKit on Kubernetes clusters.
The document discusses SUMA, a tool that automates the download of maintenance and technology levels from a fix server on AIX systems. It provides examples of using SUMA to list configuration settings, schedule periodic downloads of the latest fixes, and download specific fixes like APARs or filesets. SUMA allows flexibility in configuring fix types, actions, scheduling, logging and generating reports for download tasks.
This document discusses VMware performance troubleshooting. It covers topics like root cause analysis, performance characteristics of CPU, memory, disk and networking, and tools like ESXTop, vm-support and the service console. It provides guidelines on capacity planning, virtual machine optimization and design best practices.
OpenStack Glance provides image discovery, registration, and retrieval services. It has a RESTful API and supports storing images on various backends like filesystems and OpenStack Swift. Glance components include the Glance API, registry, and database. It supports many disk and container formats and has a caching mechanism. Images can be managed through the Glance API and used to launch instances.
2018년 10월 19일 금요일, 오픈스택 한국 커뮤니티 정기 세미나에서 발표주셨던 자료입니다.
- 행사 정보: http://festa.io/events/118
- 발표자: 김용기 부장님
> Sr. Solution Architect, Red Hat
> Administrator, Ansible Facebook Usergroup
Credential store using HashiCorp VaultMayank Patel
The document discusses HashiCorp Vault, which is a tool for securely managing secrets and sensitive data. It provides secure credential management and features like dynamic secrets, data encryption, leasing and key rotation, revocation, and audit controls. It integrates with databases, tools, and other systems. The presentation covers common challenges Vault aims to address, use cases, features, and includes a demo.
Hyper-Converged Infrastructure: ConceptsNick Scuola
This document provides an overview of various appliance and software offerings from different vendors. It lists vendors that provide niche offerings for specific uses like VDI or video surveillance. It also outlines standard appliance options from vendors like Dell, HP, and Lenovo that are optimized for Hyper-V or KVM, as well as software-defined storage solutions and reference architectures from vendors including VMware, HP, Cisco, and Lenovo. Reference architectures provide validated designs and support and some solutions include subscription models for software. The document covers a wide range of preconfigured hardware and software options from major IT vendors.
(Draft) Kubernetes - A Comprehensive OverviewBob Killen
Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery called pods. Its main components include a master node that manages the cluster and worker nodes that run the applications. It uses labels to organize resources and selectors to group related objects. Common concepts include pods, services for discovery/load balancing, replica controllers for scaling, and namespaces for isolation. It provides mechanisms for configuration, storage, security, and networking out of the box to ensure containers can run reliably and be easily managed at scale.
CEPH can be used as both primary and secondary storage with Apache Cloudstack. CEPH allows for selective VM snapshots to be available across different zones for backup and disaster recovery purposes. Snapshots can be synced selectively within zones and backups can be performed across different regions for DR.
Checking in your deployment configuration as code
Helm is a tool that streamlines the creation, deployment and management of your Kubernetes-native applications. In this talk, we take a look at how Helm enables you to manage your deployment configurations as code, and demonstrate how it can be used to power your continuous delivery (CI/CD) pipeline.
This document provides an overview of the Red Hat Ansible Automation Platform. It begins with discussing why automation is important, citing industry analysts and research showing that automation is a strategic priority. It then discusses why the Red Hat Ansible platform specifically, noting its leadership position in Forrester evaluations. The rest of the document discusses what makes a platform, covering the key elements of creating, operating, and consuming automation. It details the various components of the Ansible platform that address the automation lifecycle.
Kubernetes Concepts And Architecture Powerpoint Presentation SlidesSlideTeam
The document provides an overview of Kubernetes concepts and architecture. It begins with an introduction to containers and microservices architecture. It then discusses what Kubernetes is and why organizations should use it. The remainder of the document outlines Kubernetes components, nodes, development processes, networking, and security measures. It provides descriptions and diagrams explaining key aspects of Kubernetes such as architecture, components like Kubelet and Kubectl, node types, and networking models.
Este documento presenta un proyecto de virtualización de servidores utilizando VMware vSphere 6.0 para probar características de alta disponibilidad y rendimiento. El proyecto incluye la instalación y configuración de ESXi, vCenter Server, almacenamiento compartido iSCSI, y la configuración y prueba de vMotion, Storage vMotion, HA, DRS y Fault Tolerance. El objetivo es simular un pequeño centro de datos virtualizado con estas funcionalidades.
The content of this document is translated by Google. If there are any errors, the original text will be used.
COPYRIGHT by ITZIK REICH AND TEAM
volumes.blog
VxRail 7.0.240 introduced Dynamic Node architecture which allows compute nodes to be deployed without local storage drives. Storage is provided by external arrays connected via Fibre Channel or using HCI Mesh. The document provides release notes on Dynamic Node support in subsequent VxRail releases, including protocols supported and integration with PowerStore, PowerMax, and Unity storage arrays. It also describes the differences in deployment process compared to standard VxRail clusters, such as not requiring vSAN licensing and using an external vCenter Server. The initial deployment is similar except certain settings like storage type and vCenter configuration must be customized.
VMware ESXi - Intel and Qlogic NIC throughput difference v0.6David Pasek
We are observing different network throughputs on Intel X710 NICs and QLogic FastLinQ QL41xxx NIC. ESXi hardware supports NIC hardware offloading and queueing on 10Gb, 25Gb, 40Gb and 100Gb NIC adapters. Multiple hardware queues per NIC interface (vmnic) and multiple software threads on ESXi VMkernel is depicted and documented in this paper which may or may not be the root cause of the observed problem. The key objective of this document is to clearly document and collect NIC information on two specific Network Adapters and do a comparison to find the difference or at least root cause hypothesis for further troubleshooting.
Troubleshooting Strategies for CloudStack Installations by Kirk Kosinski buildacloud
The document provides troubleshooting strategies for CloudStack installations, including network issues, security groups, host connectivity, virtual routers, templates, and log analysis. It discusses common problems such as VLAN misconfigurations, security group rules not being applied, hosts showing in the "avoid set", template preparation errors, and exceptions in the logs. It emphasizes analyzing logs at the management server, hypervisor, and job levels to find the root cause of failures.
[KubeConEU] Building images efficiently and securely on Kubernetes with BuildKitAkihiro Suda
https://sched.co/MPX5
BuildKit is a modern container image builder that focuses on efficiency and security, mostly known as the backend of Docker 18.06+ and Jessie Frazelle's `img`. (But it is even useful as a standalone tool!)
In this talk, Akihiro Suda, one of founding maintainers of BuildKit, shows practical tips for running BuildKit on Kubernetes clusters.
The document discusses SUMA, a tool that automates the download of maintenance and technology levels from a fix server on AIX systems. It provides examples of using SUMA to list configuration settings, schedule periodic downloads of the latest fixes, and download specific fixes like APARs or filesets. SUMA allows flexibility in configuring fix types, actions, scheduling, logging and generating reports for download tasks.
This document discusses VMware performance troubleshooting. It covers topics like root cause analysis, performance characteristics of CPU, memory, disk and networking, and tools like ESXTop, vm-support and the service console. It provides guidelines on capacity planning, virtual machine optimization and design best practices.
OpenStack Glance provides image discovery, registration, and retrieval services. It has a RESTful API and supports storing images on various backends like filesystems and OpenStack Swift. Glance components include the Glance API, registry, and database. It supports many disk and container formats and has a caching mechanism. Images can be managed through the Glance API and used to launch instances.
2018년 10월 19일 금요일, 오픈스택 한국 커뮤니티 정기 세미나에서 발표주셨던 자료입니다.
- 행사 정보: http://festa.io/events/118
- 발표자: 김용기 부장님
> Sr. Solution Architect, Red Hat
> Administrator, Ansible Facebook Usergroup
Credential store using HashiCorp VaultMayank Patel
The document discusses HashiCorp Vault, which is a tool for securely managing secrets and sensitive data. It provides secure credential management and features like dynamic secrets, data encryption, leasing and key rotation, revocation, and audit controls. It integrates with databases, tools, and other systems. The presentation covers common challenges Vault aims to address, use cases, features, and includes a demo.
Hyper-Converged Infrastructure: ConceptsNick Scuola
This document provides an overview of various appliance and software offerings from different vendors. It lists vendors that provide niche offerings for specific uses like VDI or video surveillance. It also outlines standard appliance options from vendors like Dell, HP, and Lenovo that are optimized for Hyper-V or KVM, as well as software-defined storage solutions and reference architectures from vendors including VMware, HP, Cisco, and Lenovo. Reference architectures provide validated designs and support and some solutions include subscription models for software. The document covers a wide range of preconfigured hardware and software options from major IT vendors.
(Draft) Kubernetes - A Comprehensive OverviewBob Killen
Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery called pods. Its main components include a master node that manages the cluster and worker nodes that run the applications. It uses labels to organize resources and selectors to group related objects. Common concepts include pods, services for discovery/load balancing, replica controllers for scaling, and namespaces for isolation. It provides mechanisms for configuration, storage, security, and networking out of the box to ensure containers can run reliably and be easily managed at scale.
CEPH can be used as both primary and secondary storage with Apache Cloudstack. CEPH allows for selective VM snapshots to be available across different zones for backup and disaster recovery purposes. Snapshots can be synced selectively within zones and backups can be performed across different regions for DR.
Checking in your deployment configuration as code
Helm is a tool that streamlines the creation, deployment and management of your Kubernetes-native applications. In this talk, we take a look at how Helm enables you to manage your deployment configurations as code, and demonstrate how it can be used to power your continuous delivery (CI/CD) pipeline.
This document provides an overview of the Red Hat Ansible Automation Platform. It begins with discussing why automation is important, citing industry analysts and research showing that automation is a strategic priority. It then discusses why the Red Hat Ansible platform specifically, noting its leadership position in Forrester evaluations. The rest of the document discusses what makes a platform, covering the key elements of creating, operating, and consuming automation. It details the various components of the Ansible platform that address the automation lifecycle.
Kubernetes Concepts And Architecture Powerpoint Presentation SlidesSlideTeam
The document provides an overview of Kubernetes concepts and architecture. It begins with an introduction to containers and microservices architecture. It then discusses what Kubernetes is and why organizations should use it. The remainder of the document outlines Kubernetes components, nodes, development processes, networking, and security measures. It provides descriptions and diagrams explaining key aspects of Kubernetes such as architecture, components like Kubelet and Kubectl, node types, and networking models.
Este documento presenta un proyecto de virtualización de servidores utilizando VMware vSphere 6.0 para probar características de alta disponibilidad y rendimiento. El proyecto incluye la instalación y configuración de ESXi, vCenter Server, almacenamiento compartido iSCSI, y la configuración y prueba de vMotion, Storage vMotion, HA, DRS y Fault Tolerance. El objetivo es simular un pequeño centro de datos virtualizado con estas funcionalidades.
The content of this document is translated by Google. If there are any errors, the original text will be used.
COPYRIGHT by ITZIK REICH AND TEAM
volumes.blog
VxRail 7.0.240 introduced Dynamic Node architecture which allows compute nodes to be deployed without local storage drives. Storage is provided by external arrays connected via Fibre Channel or using HCI Mesh. The document provides release notes on Dynamic Node support in subsequent VxRail releases, including protocols supported and integration with PowerStore, PowerMax, and Unity storage arrays. It also describes the differences in deployment process compared to standard VxRail clusters, such as not requiring vSAN licensing and using an external vCenter Server. The initial deployment is similar except certain settings like storage type and vCenter configuration must be customized.
The document provides instructions for shutting down a vSAN 7 cluster. It involves right clicking on the cluster in the vCenter interface and selecting shutdown cluster. This initiates a pre-check and prompts the user to enter a shutdown reason. It then monitors the status as the nodes transition to maintenance mode and power off, with the final status being all nodes in the cluster have powered off.