This document provides a summary of ESXi 5.0 commands and their equivalents in different ESXi shells and APIs. It maps VMware ESXCFG and VICFG commands to their corresponding ESXCLI 5.0 commands, PowerCLI cmdlets, and CIM/API methods. It also provides examples of common tasks like configuration of networking, storage, security and other host settings.
Toward a practical “HPC Cloud”: Performance tuning of a virtualized HPC clusterRyousei Takano
1) Performance tuning methods for HPC Cloud include PCI passthrough, NUMA affinity, and reducing VMM noise to improve performance and close the gap with bare metal machines.
2) Evaluation of MPI and HPC applications on a 16-node cluster showed PCI passthrough improved MPI bandwidth close to bare metal, and NUMA affinity improved performance up to 2%.
3) Parallel efficiency of coarse-grained applications was comparable to bare metal, but fine-grained applications saw up to 22% degradation due to communication overhead and virtualization.
Toward a practical “HPC Cloud”: Performance tuning of a virtualized HPC clusterRyousei Takano
This document evaluates the performance of a virtualized HPC cluster using the HPC Challenge benchmark suite. It investigates three performance tuning techniques: PCI passthrough to bypass virtualization overhead for the network interface card, NUMA affinity to improve memory access performance, and reducing "VMM noise" like unnecessary services on the host OS. The results show these techniques can improve performance of the virtualized cluster to be close to that of a non-virtualized or "bare metal" system, realizing a more practical "true HPC Cloud."
The document provides an overview of VMware vSphere 4 documentation, including:
- Main topics covered in the documentation set such as vCompute, vStorage, vNetworking, Fault Tolerance, and more.
- Details about installing and configuring ESX servers and vCenter Server such as hardware requirements, installation options, required firewall ports, and database support.
- Notes on managing software updates, licenses, and joining multiple vCenter Server instances in a Linked Mode configuration.
This document discusses modifications made to the Xen code to create Xenon, a high-assurance version of Xen. It describes simplifying and refactoring the code based on complexity metrics and modularity guidelines. Construction guidelines for Xenon include adding comments, pseudocode design language files, readme files, formatting tools, and limits on complexity, abstraction, and coding practices. The goal is to develop a separation hypervisor with an evidence package for high assurance.
Secure Xen on ARM source code is being released. The code adds around 20,000 lines to Xen 3.0.2 for ARM support and security features. New hypercalls are introduced for security and ARM features. Future roadmap includes releasing para-virtualized Linux, catching up Xen versions, and adding ARM11 and power management support. An early demo showed suspending a guest domain on one ARM board and resuming it on another identical board using a saved checkpoint file.
Next-Generation Best Practices for VMware and StorageScott Lowe
This is the opening keynote presentation, focusing on VMware and storage best practices, from the Midwest Regional VMUG in Kansas City on December 6, 2010.
System Center 2012 SP1 Virtual Machine Manager provides:
1) Enhanced capabilities for automating bare metal deployment and configuring logical networks.
2) Improved storage allocation and management including support for VHDX and SMB 3.0 file shares.
3) Extended cloud abstractions allowing for standardized application deployment and tenant administration in software-defined private clouds.
Toward a practical “HPC Cloud”: Performance tuning of a virtualized HPC clusterRyousei Takano
1) Performance tuning methods for HPC Cloud include PCI passthrough, NUMA affinity, and reducing VMM noise to improve performance and close the gap with bare metal machines.
2) Evaluation of MPI and HPC applications on a 16-node cluster showed PCI passthrough improved MPI bandwidth close to bare metal, and NUMA affinity improved performance up to 2%.
3) Parallel efficiency of coarse-grained applications was comparable to bare metal, but fine-grained applications saw up to 22% degradation due to communication overhead and virtualization.
Toward a practical “HPC Cloud”: Performance tuning of a virtualized HPC clusterRyousei Takano
This document evaluates the performance of a virtualized HPC cluster using the HPC Challenge benchmark suite. It investigates three performance tuning techniques: PCI passthrough to bypass virtualization overhead for the network interface card, NUMA affinity to improve memory access performance, and reducing "VMM noise" like unnecessary services on the host OS. The results show these techniques can improve performance of the virtualized cluster to be close to that of a non-virtualized or "bare metal" system, realizing a more practical "true HPC Cloud."
The document provides an overview of VMware vSphere 4 documentation, including:
- Main topics covered in the documentation set such as vCompute, vStorage, vNetworking, Fault Tolerance, and more.
- Details about installing and configuring ESX servers and vCenter Server such as hardware requirements, installation options, required firewall ports, and database support.
- Notes on managing software updates, licenses, and joining multiple vCenter Server instances in a Linked Mode configuration.
This document discusses modifications made to the Xen code to create Xenon, a high-assurance version of Xen. It describes simplifying and refactoring the code based on complexity metrics and modularity guidelines. Construction guidelines for Xenon include adding comments, pseudocode design language files, readme files, formatting tools, and limits on complexity, abstraction, and coding practices. The goal is to develop a separation hypervisor with an evidence package for high assurance.
Secure Xen on ARM source code is being released. The code adds around 20,000 lines to Xen 3.0.2 for ARM support and security features. New hypercalls are introduced for security and ARM features. Future roadmap includes releasing para-virtualized Linux, catching up Xen versions, and adding ARM11 and power management support. An early demo showed suspending a guest domain on one ARM board and resuming it on another identical board using a saved checkpoint file.
Next-Generation Best Practices for VMware and StorageScott Lowe
This is the opening keynote presentation, focusing on VMware and storage best practices, from the Midwest Regional VMUG in Kansas City on December 6, 2010.
System Center 2012 SP1 Virtual Machine Manager provides:
1) Enhanced capabilities for automating bare metal deployment and configuring logical networks.
2) Improved storage allocation and management including support for VHDX and SMB 3.0 file shares.
3) Extended cloud abstractions allowing for standardized application deployment and tenant administration in software-defined private clouds.
This document summarizes a presentation on memory overcommitment in virtualization given by Dan Magenheimer at the 2008 Xen Summit. It discusses why Xen currently does not support memory overcommitment while other virtualization platforms like VMware do. It then explores possible techniques for implementing memory overcommitment in Xen, such as ballooning, page sharing, and demand paging. The goal would be to allow more efficient memory utilization and higher server consolidation ratios.
The document provides best practices for storage and VMware as of 2010-2011. It discusses protocols like iSCSI and Fibre Channel, configuring multipathing, using plugins and VAAI, tracking alignment, and keeping storage layouts simple. The key recommendations are to pick protocols based on your needs, leverage vendor documentation, configure multipathing properly, use free vCenter plugins to automate best practices, and leverage thin provisioning and large datastores for simplicity.
This is a level 200 - 300 presentation.
It assumes:
Good understanding of vCenter 4, ESX 4, ESXi 4.
Preferably hands-on
We will only cover the delta between 4.1 and 4.0
Overview understanding of related products like VUM, Data Recovery, SRM, View, Nexus, Chargeback, CapacityIQ, vShieldZones, etc
Good understanding of related storage, server, network technology
Target audience
VMware Specialist: SE + Delivery from partners
Containerization allows running multiple isolated Linux instances called containers on a single host. Containers leverage features like namespaces and cgroups in the Linux kernel to isolate CPU, memory, storage and networking access for each container. Docker is a popular containerization tool that packages applications and dependencies into lightweight Linux containers that can run on any infrastructure. Containers are more lightweight than virtual machines and allow higher density and lower overhead.
vSphere provides tools like vCenter, ESXTOP, and PowerCLI to monitor the performance of CPU, memory, network, and storage. Key metrics include CPU and memory usage, network packet drops, storage latency, and swap rates. Issues like oversubscription, capacity limitations, and configuration errors can be identified by watching for saturated resources, dropped packets, and high latency or queueing. External monitoring of physical infrastructure can also provide useful visibility.
This document provides an overview of Xen virtualization and the Xen community. It discusses the goals of Xen, including paravirtualization and hardware virtualization techniques. It also summarizes recent work done to improve FreeBSD support in Xen, including PVHVM support in FreeBSD 10.x and ongoing work to support PVH domains in FreeBSD HEAD. Finally, it introduces the Xen toolstack.
XenServer 6.0 includes enhancements to simplify management, improve performance and scale, and integrate additional high availability and disaster recovery capabilities. Key features include integrated StorageLink for storage management, workload balancing via a virtual appliance, vApps for controlling VM startup order in HA and DR scenarios, and support for Microsoft SCVMM and SCOM. GPU pass-through and IntelliCache are optimized for XenDesktop deployments.
Visão geral sobre Citrix XenServer 6 - Ferramentas e LicenciamentoLorscheider Santiago
This document provides an overview of Citrix XenServer, including:
- Why use XenServer over VMware, with XenServer having leadership in the market share and lower costs.
- An overview of XenServer's key features like virtual memory licensing, clusters and pools, live migration, snapshots, and high availability.
- A comparison of XenServer and VMware features around licensing, importing VMs, backup solutions, and more.
- Details on newer versions of XenServer that include integrated disaster recovery, provisioning services, and monitoring solutions.
- Xen can now run on ARM hardware thanks to its rearchitecting to exploit ARM hardware virtualization extensions and remove unnecessary code like QEMU and shadow pagetables.
- It supports booting Linux as the dom0 and domUs. PV interfaces are used for I/O and there is no need for multiple guest types.
- Current status supports booting on ARMv7 hardware and some features on ARMv8 64-bit. Future work includes more platform support, ACPI, and enabling full ARMv8 virtualization.
Securing Your Cloud With the Xen Hypervisor by Russell Pavlicekbuildacloud
This document provides an overview of securing cloud infrastructure using the Xen hypervisor. It begins with introducing Xen security features like driver domains and PVgrub that isolate different components of the system. It then analyzes various attack surfaces like the network path, PyGrub bootloader, and Qemu device model. For each, it discusses what a successful exploit could achieve and how Xen features like driver domains and stub domains constrain the impact. The document concludes with recommendations to use the Xen security module FLASK to further restrict privileges and provides examples of applying it.
Linuxcon EU : Virtualization in the Cloud featuring Xen and XCPThe Linux Foundation
The Xen Hypervisor was built for the Cloud from the outset: when Xen was designed, we anticipated a world, which today is known as cloud computing. Today, Xen powers the largest clouds in production. This talk explores success criteria, architecture, trade-offs and challenges for cloudy hypervisors.
It is intended for users and developers and starts with a brief introduction to Xen and XCP, their architecture, shine some light on common challenges for KVM and Xen, such as the NUMA performance tax and securing the cloud. It will introduce the concept of domain disaggregation as an approach to increase security, robustness and scalability: all important factors for building clouds at scale. The talk will conclude with an update on Xen support in Linux, Xen for ARM servers and other exciting developments in the Xen community and their implications for building open source clouds.
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.
1. A distributed switch functions as a single virtual switch across all associated hosts and is configured in vCenter Server at the data center level. It consists of a control plane in vCenter Server and I/O planes in the VMkernel of each ESXi host.
2. Key components of a distributed switch include distributed ports, uplinks, and port groups. Distributed ports can connect VMs or VMkernel interfaces. Uplinks associate physical NICs across hosts. Port groups define connection configurations.
3. Configuring a distributed switch involves adding the switch in vCenter Server, creating distributed port groups, and defining properties like uplink ports and multicast filtering mode. This provides a consistent network configuration template across
Windows Azure + PHP, Java, MySQL, LOLCODE?
This session explores the interop possiblities Windows Azure has to offer starting from the architecture that leverages The Freedom of Choice and ending up with relevant examples and usage scenarios.
This document summarizes a Xen Summit that took place in Boston in 2008. It provides details on:
- The 160+ attendees from 12 countries and 14 universities
- The agenda which included talks on applications of Xen, virtualization techniques, and performance optimizations
- Social events like a lunch and evening party for attendees
- Logistical information for attendees on the wireless network, breakout rooms, and getting event t-shirts and USB drives
- The Xen project status and roadmap with details on recent and upcoming releases
The needs for immediate responsiveness of VMs in the virtualized environments have been on the rise. Several services in SKT also require soft realtime support for virtual machines to substitute the physical machines to achieve high utilization and adaptability. However, consolidated multiple OSes and irregular external events might render the hypervisor infringe on a VM's promptitude. As a solution of this problem, we are improving Xen's credit scheduler by introducing the RT_PRIORITY that guarantees a VM's running at any given point in time as long as credits remains to be burn. It would increase the quality of service and make a VM's behavior predictable on the consolidated environment. In addition, we extend our suggestion to the multi-core environment and even a large number of physical machines by using live migrations.
This document describes SIOEMU, a self-IO emulation technique that allows non-x86 operating systems like OpenVMS to run on Xen/ia64 virtual machines. It does so by having a firmware within the domain handle all IO emulation instead of relying on Qemu in the control domain. This makes the domains more flexible and improves performance by avoiding domain scheduling for IO operations. The firmware emulates devices like IDE and network interfaces to provide full system emulation. Initial results show it can run Linux and OpenVMS domains, but ongoing work is needed to support SMP, save/restore, and add support for devices like VGA.
Xen is a mature enterprise-grade virtual machine with many advanced security features which are unique to Xen. For this reason it's the hypervisor of choice for the NSA, the DoD, and the new QubesOS Secure Desktop project. However, while much of the security of Xen is inherent in its design, many of the advanced security features, such as stub domains, driver domains, XSM, and so on are not enabled by default. This session will describe all of the advanced security features of Xen, and the best way to configure them for the Cloud environment.
Bi-directional RPC communications on dynamic TCP ports are required between all vCenters in Linked Mode. Connections and ports are required between vCenter Server, Site Recovery Manager, and other VMware products for monitoring, management, and communication. Common ports include TCP ports 80, 443, 389, 902, and 8443.
This document outlines the modules and objectives of a comprehensive training course on designing, implementing, and protecting a VMware datacenter. The 14 main modules cover topics like ESXi installation, vCenter configuration, networking, storage, security appliances, and backup solutions. Additional modules address virtual storage appliances, monitoring, management tools, and multi-site backup for failover. Upon completing the course, students will be able to design, deploy, secure, manage, and backup all aspects of a VMware virtual infrastructure.
This document summarizes a presentation on memory overcommitment in virtualization given by Dan Magenheimer at the 2008 Xen Summit. It discusses why Xen currently does not support memory overcommitment while other virtualization platforms like VMware do. It then explores possible techniques for implementing memory overcommitment in Xen, such as ballooning, page sharing, and demand paging. The goal would be to allow more efficient memory utilization and higher server consolidation ratios.
The document provides best practices for storage and VMware as of 2010-2011. It discusses protocols like iSCSI and Fibre Channel, configuring multipathing, using plugins and VAAI, tracking alignment, and keeping storage layouts simple. The key recommendations are to pick protocols based on your needs, leverage vendor documentation, configure multipathing properly, use free vCenter plugins to automate best practices, and leverage thin provisioning and large datastores for simplicity.
This is a level 200 - 300 presentation.
It assumes:
Good understanding of vCenter 4, ESX 4, ESXi 4.
Preferably hands-on
We will only cover the delta between 4.1 and 4.0
Overview understanding of related products like VUM, Data Recovery, SRM, View, Nexus, Chargeback, CapacityIQ, vShieldZones, etc
Good understanding of related storage, server, network technology
Target audience
VMware Specialist: SE + Delivery from partners
Containerization allows running multiple isolated Linux instances called containers on a single host. Containers leverage features like namespaces and cgroups in the Linux kernel to isolate CPU, memory, storage and networking access for each container. Docker is a popular containerization tool that packages applications and dependencies into lightweight Linux containers that can run on any infrastructure. Containers are more lightweight than virtual machines and allow higher density and lower overhead.
vSphere provides tools like vCenter, ESXTOP, and PowerCLI to monitor the performance of CPU, memory, network, and storage. Key metrics include CPU and memory usage, network packet drops, storage latency, and swap rates. Issues like oversubscription, capacity limitations, and configuration errors can be identified by watching for saturated resources, dropped packets, and high latency or queueing. External monitoring of physical infrastructure can also provide useful visibility.
This document provides an overview of Xen virtualization and the Xen community. It discusses the goals of Xen, including paravirtualization and hardware virtualization techniques. It also summarizes recent work done to improve FreeBSD support in Xen, including PVHVM support in FreeBSD 10.x and ongoing work to support PVH domains in FreeBSD HEAD. Finally, it introduces the Xen toolstack.
XenServer 6.0 includes enhancements to simplify management, improve performance and scale, and integrate additional high availability and disaster recovery capabilities. Key features include integrated StorageLink for storage management, workload balancing via a virtual appliance, vApps for controlling VM startup order in HA and DR scenarios, and support for Microsoft SCVMM and SCOM. GPU pass-through and IntelliCache are optimized for XenDesktop deployments.
Visão geral sobre Citrix XenServer 6 - Ferramentas e LicenciamentoLorscheider Santiago
This document provides an overview of Citrix XenServer, including:
- Why use XenServer over VMware, with XenServer having leadership in the market share and lower costs.
- An overview of XenServer's key features like virtual memory licensing, clusters and pools, live migration, snapshots, and high availability.
- A comparison of XenServer and VMware features around licensing, importing VMs, backup solutions, and more.
- Details on newer versions of XenServer that include integrated disaster recovery, provisioning services, and monitoring solutions.
- Xen can now run on ARM hardware thanks to its rearchitecting to exploit ARM hardware virtualization extensions and remove unnecessary code like QEMU and shadow pagetables.
- It supports booting Linux as the dom0 and domUs. PV interfaces are used for I/O and there is no need for multiple guest types.
- Current status supports booting on ARMv7 hardware and some features on ARMv8 64-bit. Future work includes more platform support, ACPI, and enabling full ARMv8 virtualization.
Securing Your Cloud With the Xen Hypervisor by Russell Pavlicekbuildacloud
This document provides an overview of securing cloud infrastructure using the Xen hypervisor. It begins with introducing Xen security features like driver domains and PVgrub that isolate different components of the system. It then analyzes various attack surfaces like the network path, PyGrub bootloader, and Qemu device model. For each, it discusses what a successful exploit could achieve and how Xen features like driver domains and stub domains constrain the impact. The document concludes with recommendations to use the Xen security module FLASK to further restrict privileges and provides examples of applying it.
Linuxcon EU : Virtualization in the Cloud featuring Xen and XCPThe Linux Foundation
The Xen Hypervisor was built for the Cloud from the outset: when Xen was designed, we anticipated a world, which today is known as cloud computing. Today, Xen powers the largest clouds in production. This talk explores success criteria, architecture, trade-offs and challenges for cloudy hypervisors.
It is intended for users and developers and starts with a brief introduction to Xen and XCP, their architecture, shine some light on common challenges for KVM and Xen, such as the NUMA performance tax and securing the cloud. It will introduce the concept of domain disaggregation as an approach to increase security, robustness and scalability: all important factors for building clouds at scale. The talk will conclude with an update on Xen support in Linux, Xen for ARM servers and other exciting developments in the Xen community and their implications for building open source clouds.
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.
1. A distributed switch functions as a single virtual switch across all associated hosts and is configured in vCenter Server at the data center level. It consists of a control plane in vCenter Server and I/O planes in the VMkernel of each ESXi host.
2. Key components of a distributed switch include distributed ports, uplinks, and port groups. Distributed ports can connect VMs or VMkernel interfaces. Uplinks associate physical NICs across hosts. Port groups define connection configurations.
3. Configuring a distributed switch involves adding the switch in vCenter Server, creating distributed port groups, and defining properties like uplink ports and multicast filtering mode. This provides a consistent network configuration template across
Windows Azure + PHP, Java, MySQL, LOLCODE?
This session explores the interop possiblities Windows Azure has to offer starting from the architecture that leverages The Freedom of Choice and ending up with relevant examples and usage scenarios.
This document summarizes a Xen Summit that took place in Boston in 2008. It provides details on:
- The 160+ attendees from 12 countries and 14 universities
- The agenda which included talks on applications of Xen, virtualization techniques, and performance optimizations
- Social events like a lunch and evening party for attendees
- Logistical information for attendees on the wireless network, breakout rooms, and getting event t-shirts and USB drives
- The Xen project status and roadmap with details on recent and upcoming releases
The needs for immediate responsiveness of VMs in the virtualized environments have been on the rise. Several services in SKT also require soft realtime support for virtual machines to substitute the physical machines to achieve high utilization and adaptability. However, consolidated multiple OSes and irregular external events might render the hypervisor infringe on a VM's promptitude. As a solution of this problem, we are improving Xen's credit scheduler by introducing the RT_PRIORITY that guarantees a VM's running at any given point in time as long as credits remains to be burn. It would increase the quality of service and make a VM's behavior predictable on the consolidated environment. In addition, we extend our suggestion to the multi-core environment and even a large number of physical machines by using live migrations.
This document describes SIOEMU, a self-IO emulation technique that allows non-x86 operating systems like OpenVMS to run on Xen/ia64 virtual machines. It does so by having a firmware within the domain handle all IO emulation instead of relying on Qemu in the control domain. This makes the domains more flexible and improves performance by avoiding domain scheduling for IO operations. The firmware emulates devices like IDE and network interfaces to provide full system emulation. Initial results show it can run Linux and OpenVMS domains, but ongoing work is needed to support SMP, save/restore, and add support for devices like VGA.
Xen is a mature enterprise-grade virtual machine with many advanced security features which are unique to Xen. For this reason it's the hypervisor of choice for the NSA, the DoD, and the new QubesOS Secure Desktop project. However, while much of the security of Xen is inherent in its design, many of the advanced security features, such as stub domains, driver domains, XSM, and so on are not enabled by default. This session will describe all of the advanced security features of Xen, and the best way to configure them for the Cloud environment.
Bi-directional RPC communications on dynamic TCP ports are required between all vCenters in Linked Mode. Connections and ports are required between vCenter Server, Site Recovery Manager, and other VMware products for monitoring, management, and communication. Common ports include TCP ports 80, 443, 389, 902, and 8443.
This document outlines the modules and objectives of a comprehensive training course on designing, implementing, and protecting a VMware datacenter. The 14 main modules cover topics like ESXi installation, vCenter configuration, networking, storage, security appliances, and backup solutions. Additional modules address virtual storage appliances, monitoring, management tools, and multi-site backup for failover. Upon completing the course, students will be able to design, deploy, secure, manage, and backup all aspects of a VMware virtual infrastructure.
The document discusses designing, deploying, and optimizing SharePoint 2010 on VMware. It covers topics such as performance of SharePoint on vSphere, capacity planning including workload modeling and SQL server capacity, and high availability, disaster recovery, and backup of SharePoint on vSphere. A case study with EMC is also mentioned.
This document outlines the curriculum for a comprehensive training course on designing, implementing, and protecting a VMware datacenter. The course covers key topics like high availability, storage, security, backup, and monitoring over 14 classes and 12 modules. It includes hands-on labs for setting up ESXi hosts, vCenter, storage solutions like Open-E DSS, networking, HA clusters, backups with VDR, and monitoring with vOPS. The goal is to provide advanced professionals with the practical skills needed to successfully manage medium to large VMware environments.
VMware Monitoring-Discover And Monitor Your Virtual EnvironmentSite24x7
Gain a holistic view of your VMware infrastructure. Monitor VMware vSphere hosts and virtual machines (VMs). Get graphical views, alarms and thresholds, out-of-the-box reports, comprehensive fault management and maximum ESX server uptime. Site24x7 vCenter servers allow you to take control of your virtual resources and VMware infrastructure.
Here are the key differences between vSphere 5.0 and earlier vSphere versions that affect installation and setup:
- ESXi no longer includes a Service Console. Configuration is done through ESXi Shell, vCLI, and PowerCLI commands.
- ESXi uses a single text-based installer for fresh installations and upgrades.
- vSphere Auto Deploy and ESXi Image Builder CLI allow deploying ESXi directly to memory.
- Partitions use GPT format for new installations over 2TB instead of MSDOS. VMFS5 is used.
- The vCenter Server Appliance provides an alternative to Windows-based vCenter Server.
- The vSphere Web Client provides browser-based
This document provides an overview and agenda for discussing what's new in vSphere 5 and Heartbeat 6.4. It first recaps vSphere and introduces vSphere 5's new infrastructure and application services for compute, storage, network, availability, security and scalability. Specific enhancements discussed include ESXi convergence, auto deploy, storage DRS, I/O controls, larger VMs, and the vCenter appliance. It then summarizes vCenter Heartbeat 6.4's high availability capabilities for vCenter Server and integration with vSphere 5.
Presentation1VMware EsxI Short PresentationBarcamp Cork
VMware Server requires an underlying operating system like Windows Server 2003 but has no hypervisor. It has its own virtual switch and is fairly secure for single server installs. ESXi has a hypervisor so no underlying OS is needed, and it has better fault tolerance, faster recovery, and allows for higher server consolidation compared to VMware Server. Storage area networks provide faster connectivity than traditional setups, use less cabling and equipment, and offer redundancy and cost efficiency over traditional networking. Cloud computing optimizes infrastructure for virtualization, allows outsourcing of maintenance, consolidation of data and voice services, and reduces costs, carbon footprint and improves security compared to traditional IT systems.
vSphere defines VMware's virtualization product suite, including the ESXi hypervisor, vCenter management server, and vSphere Client interface. ESXi uses a proprietary kernel called vmkernel along with some open source components. Key features of vSphere include VMware HA, vMotion, and DRS for managing and migrating VMs across hosts. Troubleshooting performance issues involves tools like esxtop to monitor CPU, memory, and swap usage on ESXi hosts and VMs.
VMware ESX Server provides a bare-metal virtualization platform for running multiple virtual machines on a single physical server. It allows for high utilization of server resources and isolation of virtual machines. ESX Server provides tools for granular management of CPU, memory, storage and network resources for virtual machines. It also includes features for remote management, availability, live migration of virtual machines, and support for many operating systems and hardware configurations.
Introduction - vSphere 5 High Availability (HA)Eric Sloof
VMware HA clusters enable a collection of ESXi hosts to work together so that, as a group, they provide higher levels of availability for virtual machines than each ESXi host could provide individually. When you plan the creation and usage of a new VMware HA cluster, the options you select affect the way that cluster responds
to failures of hosts or virtual machines.
This document provides an overview of VMware virtualization solutions including ESXi, vSphere, and vCenter. It describes what virtualization and hypervisors are, lists VMware's product lines, and summarizes key features and capabilities of ESXi, vSphere, and vCenter such as centralized management, monitoring, high availability, and scalability.
Virtualization allows multiple operating systems and applications to run on the same physical server at the same time. This increases hardware utilization and flexibility while reducing IT costs. VMware virtualization solutions can reduce energy costs by 80% through server consolidation and powering down unused servers without affecting applications or users. Virtualization makes hardware resources independent of operating systems and applications, treating them as single unified units that can be more easily deployed, maintained, and supported.
This document provides an introduction to virtualization. It defines virtualization as running multiple operating systems simultaneously on the same machine in isolation. A hypervisor is a software layer that sits between hardware and guest operating systems, allowing resources to be shared. There are two main types of hypervisors - bare-metal and hosted. Virtualization provides benefits like consolidation, redundancy, legacy system support, migration and centralized management. Key types of virtualization include server, desktop, application, memory, storage and network virtualization. Popular virtualization vendors for each type are also listed.
The document discusses several new and upcoming plug-ins for vCenter from NetApp and EMC that are aimed at improving storage management and operations when using their respective storage arrays with vSphere. It provides brief overviews of capabilities and screenshots of some of the plug-ins in action, including Rapid Clone Utility, Storage Views, SnapManager for VMware, and Virtual Storage Console for cloning, monitoring storage and backups. The document serves to highlight and demo the latest plug-ins and tools available from NetApp and EMC for integrating their storage with vSphere managed by vCenter.
This document provides a summary of commands and configuration files for managing VMware ESX servers. It lists esxcfg commands for configuring services, hardware, and storage. It also lists vmware commands for virtual machines, debugging, and the web interface. Configuration files and log files are documented. The document is intended as a quick reference for administrators of ESX servers.
This document summarizes enhancements being made to the VMware Nova Compute Driver. It outlines key areas for improvement like launching OVF disk images, VNC console support, attaching/detaching iSCSI volumes, guest info, host operations, VLAN support, live and cold migration. It then provides details on specific driver enhancements like supporting sparse/streamOptimized disks, power on/off, getting VNC console, injecting network info, volume attachment/detachment, host resource info, and live migration functions. The document also discusses linked clones, custom image properties in Glance for VMware adapter/disk types and guest OS, and VNC configuration flags. Lastly, it includes a diagram showing the relationship between
The document provides a summary of all ESXCLI commands organized by category and includes brief descriptions of ESXCLI usage and examples of common ESXCLI commands. It also lists related tools for managing and troubleshooting VMware vSphere environments like PowerCLI, vMA, and vCLI.
This document provides an overview of new features in vSphere 5 including:
- ESXi only architecture with no service console and smaller security footprint.
- New ESXi shell and vCLI commands for simplified management.
- Enhancements to features like vMotion, DRS, HA, and new features like Auto Deploy, Storage DRS, and ESXi firewall.
- Performance improvements and support for new hardware like USB 3.0 and larger VMs.
- Summary of changes to management tools including new vSphere Web Client.
Automating Your CloudStack Cloud with Puppetbuildacloud
This document discusses automating the deployment and configuration of virtual machines (VMs) created with Apache CloudStack using Puppet. It provides an overview of CloudStack and its architecture before explaining how Puppet can be used to classify and configure VMs at launch based on custom facts extracted from metadata passed to the VM. The document recommends minimizing templates and configuring all VMs via Puppet for easy management at scale. It also describes how the CloudStack API can be used to programmatically deploy VMs that are then automatically configured by Puppet.
The document discusses the evolution of XenServer architecture to address scalability limitations. The current architecture works well now but will hit bottlenecks on larger servers. The new "Windsor" architecture uses domain 0 disaggregation to move virtualization functions out of domain 0 and into separate domains for improved performance, scalability, and isolation. Key benefits include better VM density, use of hardware resources, stability, availability, and extensibility. It provides a flexible platform that can scale-out across servers.
Automating CloudStack with Puppet - David NalleyPuppet
This document discusses using Puppet to automate the deployment and configuration of virtual machines (VMs) in an Apache CloudStack infrastructure. It describes how Puppet can be used to deploy and configure CloudStack VMs according to their roles by parsing userdata passed to the VMs at launch. Custom Puppet facts can extract role information from the userdata to classify nodes and apply the appropriate configuration. The CloudStack and Puppet APIs can be combined to fully automate the provisioning and configuration of VMs from a clean state using Puppet manifests and resources.
Rearchitecting Storage for Server VirtualizationStephen Foskett
This document summarizes a presentation on rearchitecting storage for server virtualization. It discusses how server virtualization impacts storage by increasing random I/O, challenges of shared storage, and various hypervisor storage approaches like shared storage on SAN/NAS, raw device mapping, and their pros and cons. It also covers storage connectivity options, features in vSphere like thin provisioning and storage I/O control, and technologies like NPIV that are important for virtualization.
Hardware support for virtualization originated in the 1970s with goals of running multiple virtual machines on a single physical machine. A key requirement was virtualization allowing equivalent execution of programs in a virtual environment as running natively. The x86 architecture posed challenges to virtualization due to sensitive instructions. Intel Virtualization Technology (VT-x) added hardware support for virtualization on x86 by introducing a new CPU operation mode called VMX non-root, and transitions between it and VMX root mode. This reduced the need for software emulation of sensitive instructions and improved virtualization performance.
Nova for Physicalization and Virtualization compute modelsopenstackindia
This document discusses Nova, OpenStack's compute service, and provides an overview of:
1) Different compute models Nova supports including physical servers, virtualized servers using technologies like ESX, Hyper-V, KVM, Xen server, and container-based virtualization using LXC and OpenVZ.
2) Nova uses a driver-based approach to support different hypervisor technologies with drivers for KVM, ESX, Hyper-V, and others.
3) An example multi-hypervisor OpenStack cloud is shown supporting images, controllers, services, and compute hosts running Hyper-V, KVM, and ESXi.
4) Key features like physical bare-metal provisioning are supported across different
- The document discusses the author's experience adopting Hyper-V for virtualization and shares lessons learned along the journey. It addresses common myths and fears about Hyper-V and compares it to VMware.
- Key topics covered include choosing server hardware, storage, networking, deploying Hyper-V hosts and VMs, management tools like System Center VMM 2008, and tips for evaluating virtualization solutions.
- The author encourages trying products like Hyper-V and VMware in a lab to document findings before production deployment and not trusting opinions without own hands-on experience.
This is the presentation on VMware integration points, given on October 26, 2010, to the Eastern TN VMUG/EMC User Group at their meeting in Knoxville, TN.
Windows Server 2008 Web Workload OverviewDavid Chou
The document provides an overview of Windows Server 2008 and Internet Information Services 7.0. It discusses new features like improved virtualization support, enhanced security and management tools, and more flexible application hosting capabilities. It also summarizes the architecture and administration improvements in IIS 7.0, including its modular and customizable design.
This document discusses hardware-assisted virtualization and related security issues. It provides a history of virtualization technologies from 1960 to present day, including full virtualization, para-virtualization, and hardware-assisted virtualization using AMD-V, VT-x, and VT-d. It also summarizes how a VMM is programmed using VMX instructions to initialize and handle VM exits, and explains attacks that have targeted various virtualization methods like binary translation, para-virtualization, and hardware-assisted virtualization.
The document discusses new features in Windows Server 2012 Hyper-V and System Center 2012 Virtual Machine Manager (VMM) SP1 for implementing private clouds, including increased scalability for VMs and hosts in a cluster, live storage migration capabilities, enhanced networking functionality through Hyper-V Network Virtualization, improved storage allocation and management, and expanded self-service user and delegated administration roles.
VMware ESXi is a compact hypervisor architecture that operates independently without a general-purpose operating system. It comprises the VMkernel operating system, which manages hardware resources and runs processes like the virtual machine monitor. ESXi eliminates the need for a service console through new remote command line interfaces and adherence to management standards. The streamlined design focuses on rapid deployment and simplified management of virtual infrastructure.
The document discusses IP storage concepts including iSCSI, NFS, SMB3, and configurations for VMware and Windows environments. Key points covered include iSCSI architecture, naming conventions, multipathing, masking, ALUA, and best practices for VMware and Windows configurations using software or hardware iSCSI.
CloudStack vs OpenStack vs Eucalyptus: IaaS Private Cloud Brief Comparisonbizalgo
This document compares the architectures, installation processes, administration tools, security features, and high availability capabilities of CloudStack, Eucalyptus, and OpenStack. CloudStack has a monolithic controller architecture and the easiest installation process. Eucalyptus closely mimics AWS but has a more difficult multi-component installation. OpenStack is the most fragmented with many interdependent pieces and a challenging installation. All three provide basic security through VLANs and firewalls, with Eucalyptus and OpenStack adding additional authentication. High availability varies by platform, with CloudStack using a load-balanced controller, Eucalyptus relying on component failover, and OpenStack's Swift storage using replication across its ring topology.
Windows server 2012 R2 private cloud virtualization and storageSathishkumar A
Windows Server 2012 R2 improves storage and virtualization capabilities including:
1. Scale-out file servers allow storage of virtual machine files on file shares with high performance similar to a SAN.
2. Storage Spaces provides storage virtualization using storage pools and virtual disks (storage spaces) with attributes like resiliency and tiers.
3. Failover clustering now detects physical storage and network failures for virtual machines even if the storage is not cluster managed, and moves VMs to maintain access and connectivity.
This document outlines career paths and certifications in IT networking from Cisco. It provides a chart showing different networking roles and the certifications recommended to enhance skills and knowledge in areas like routing, switching, security, wireless, voice, and more. The certifications range from entry-level like CCENT to expert-level like CCIE and include exams, recommended training courses, and experience requirements for each.
Windows server 2008 active directory componentsSathishkumar A
Active Directory Lightweight Directory Services (AD LDS) provides directory services for directory-enabled applications without requiring Active Directory domains or forests. Active Directory Federation Services (AD FS) enables single sign-on for authenticating users to access multiple web applications. Active Directory Rights Management Services (AD RMS) protects digital information from unauthorized use both online and offline inside and outside an organization using AD RMS-enabled applications.
The VCP5 blueprint covers planning, installing, configuring and upgrading vCenter Server and VMware ESXi, as well as securing, networking and storing vSphere environments. Key topics include installing vCenter Server and ESXi, configuring vSphere networking using vSS and vDS, planning and configuring vSphere storage, deploying and administering virtual machines and vApps, and establishing and maintaining service levels through clusters, fault tolerance and resource pools. The VCP4 blueprint focuses on similar ESXi and vSphere configuration and management topics.
Footprinting is the process of gathering public information about a computer system and its owning organization in order to learn as much as possible without accessing the system directly. The document provides an overview of open source footprinting techniques like whois lookups and examining a website's HTML, as well as port scanning and DNS interrogation. As an example, the author footprints the website 2600slc.org, discovering its IP address, admin contact details from the whois record, and open ports including FTP, SSH, SMTP, and HTTP. The information gathered through footprinting can be used to better attack or protect a system.
GlobalLogic Java Community Webinar #18 “How to Improve Web Application Perfor...GlobalLogic Ukraine
Під час доповіді відповімо на питання, навіщо потрібно підвищувати продуктивність аплікації і які є найефективніші способи для цього. А також поговоримо про те, що таке кеш, які його види бувають та, основне — як знайти performance bottleneck?
Відео та деталі заходу: https://bit.ly/45tILxj
From Natural Language to Structured Solr Queries using LLMsSease
This talk draws on experimentation to enable AI applications with Solr. One important use case is to use AI for better accessibility and discoverability of the data: while User eXperience techniques, lexical search improvements, and data harmonization can take organizations to a good level of accessibility, a structural (or “cognitive” gap) remains between the data user needs and the data producer constraints.
That is where AI – and most importantly, Natural Language Processing and Large Language Model techniques – could make a difference. This natural language, conversational engine could facilitate access and usage of the data leveraging the semantics of any data source.
The objective of the presentation is to propose a technical approach and a way forward to achieve this goal.
The key concept is to enable users to express their search queries in natural language, which the LLM then enriches, interprets, and translates into structured queries based on the Solr index’s metadata.
This approach leverages the LLM’s ability to understand the nuances of natural language and the structure of documents within Apache Solr.
The LLM acts as an intermediary agent, offering a transparent experience to users automatically and potentially uncovering relevant documents that conventional search methods might overlook. The presentation will include the results of this experimental work, lessons learned, best practices, and the scope of future work that should improve the approach and make it production-ready.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
In our second session, we shall learn all about the main features and fundamentals of UiPath Studio that enable us to use the building blocks for any automation project.
📕 Detailed agenda:
Variables and Datatypes
Workflow Layouts
Arguments
Control Flows and Loops
Conditional Statements
💻 Extra training through UiPath Academy:
Variables, Constants, and Arguments in Studio
Control Flow in Studio
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
AI in the Workplace Reskilling, Upskilling, and Future Work.pptxSunil Jagani
Discover how AI is transforming the workplace and learn strategies for reskilling and upskilling employees to stay ahead. This comprehensive guide covers the impact of AI on jobs, essential skills for the future, and successful case studies from industry leaders. Embrace AI-driven changes, foster continuous learning, and build a future-ready workforce.
Read More - https://bit.ly/3VKly70
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation F...AlexanderRichford
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation Functions to Prevent Interaction with Malicious QR Codes.
Aim of the Study: The goal of this research was to develop a robust hybrid approach for identifying malicious and insecure URLs derived from QR codes, ensuring safe interactions.
This is achieved through:
Machine Learning Model: Predicts the likelihood of a URL being malicious.
Security Validation Functions: Ensures the derived URL has a valid certificate and proper URL format.
This innovative blend of technology aims to enhance cybersecurity measures and protect users from potential threats hidden within QR codes 🖥 🔒
This study was my first introduction to using ML which has shown me the immense potential of ML in creating more secure digital environments!
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Introducing BoxLang : A new JVM language for productivity and modularity!Ortus Solutions, Corp
Just like life, our code must adapt to the ever changing world we live in. From one day coding for the web, to the next for our tablets or APIs or for running serverless applications. Multi-runtime development is the future of coding, the future is to be dynamic. Let us introduce you to BoxLang.
Dynamic. Modular. Productive.
BoxLang redefines development with its dynamic nature, empowering developers to craft expressive and functional code effortlessly. Its modular architecture prioritizes flexibility, allowing for seamless integration into existing ecosystems.
Interoperability at its Core
With 100% interoperability with Java, BoxLang seamlessly bridges the gap between traditional and modern development paradigms, unlocking new possibilities for innovation and collaboration.
Multi-Runtime
From the tiny 2m operating system binary to running on our pure Java web server, CommandBox, Jakarta EE, AWS Lambda, Microsoft Functions, Web Assembly, Android and more. BoxLang has been designed to enhance and adapt according to it's runnable runtime.
The Fusion of Modernity and Tradition
Experience the fusion of modern features inspired by CFML, Node, Ruby, Kotlin, Java, and Clojure, combined with the familiarity of Java bytecode compilation, making BoxLang a language of choice for forward-thinking developers.
Empowering Transition with Transpiler Support
Transitioning from CFML to BoxLang is seamless with our JIT transpiler, facilitating smooth migration and preserving existing code investments.
Unlocking Creativity with IDE Tools
Unleash your creativity with powerful IDE tools tailored for BoxLang, providing an intuitive development experience and streamlining your workflow. Join us as we embark on a journey to redefine JVM development. Welcome to the era of BoxLang.
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.