VMware vSphere® 6.0 permet aux utilisateurs de virtualiser leurs applications verticales et horizontales en toute sécurité, redéfinit les besoins en disponibilité et simplifie la gestion du datacenter virtuel. Cette version majeure offre une infrastructure à la demande, hautement disponible et fiable qui constitue la base idéale pour tout environnement de Cloud Computing.
Horizon 6, la suite logicielle VDI de VMware, ajoute le support des postes de travail virtuels Linux, en plus de l’environnement Windows de Microsoft. L’éditeur de Palo Alto a lancé un programme d'accès précoce pour les clients désirant tester en avant-première Horizon 6 avec les distributions Linux de Red Hat et Ubuntu sur des ordinateurs distants et des terminaux mobiles.
vCloudXperts provides Instructor Led Online Live vmware vsphere vcp 7 Datacenter Virtualization Training and Advanced Cloud Professional Training.
https://www.vcloudxperts.com
Demo Session registration: https://www.vcloudxperts.com/index.php#download-syllabus
This Intensive Training with Hands On Labs and Certification Exam Prep will help you Master The Most Demanding Technologies
1. VMware Datacenter Virtualization: vSphere 7 VCP - VMware Certified Professional
2. AWS Cloud Solutions Architect Associate
3. AWS Cloud Solutions Architect Professional
4. AWS Cloud Network Specialty
5. Azure Cloud Administration
6. Google Cloud Professional
7. RedHat Linux Administration
8. Python Programing for System Administrators (Windows / Linux Admins)
9. Docker Certified Administrator
9. Kubernetes
How to Optimize Microsoft Hyper-V Failover Cluster and Double PerformanceStarWind Software
High availability in a virtualized workload may require to sacrifice failover cluster performance. Using an optimized for virtualization approach on data storage and virtual machines placement and protection will give you desired boost of performance.
The presentation shows how to:
- Achieve true Hyper-V cluster high availability with just 2 Hyper-V hosts and zero storage hardware
- Boost Hyper-V cluster performance by configuring automatic dynamic optimization
- Effectively track VMs resources usage
- Save an extra 30% of Hyper-V cluster resources by utilizing agentless antivirus
Management tools and techniques for controlling, customizing, and managing your VMware ESXi infrastructure without the use of the Linux-based Service Console.
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.
XenServer, Hyper-V, and ESXi - Architecture, API, and Coding_Humair_Ahmed_
XenServer, Hyper-V, and ESXi hypervisor comparison in regards to market share, architecture/installation, and APIs/coding. Technical details, demos, and code provided. Visit my blog at http://humairahmed.com/blog/.
White Paper: Using VMware Storage APIs for Array Integration with EMC Symmetr...EMC
This white paper discusses how VMware's vSphere Storage APIs for Array Integration, also known as VAAI, can be used to offload perform various virtual machine operations on the EMC Symmetrix.
20 Tips to Help Job Seekers Prepare for an Interview at VMwareVMware
There are many resources out there to prepare. It's important to get a holistic and comprehensive view to prep yourself for an interview. We asked our recruiters what they would recommend for job seekers, and here is what we heard.
VMware vSphere® 6.0 permet aux utilisateurs de virtualiser leurs applications verticales et horizontales en toute sécurité, redéfinit les besoins en disponibilité et simplifie la gestion du datacenter virtuel. Cette version majeure offre une infrastructure à la demande, hautement disponible et fiable qui constitue la base idéale pour tout environnement de Cloud Computing.
Horizon 6, la suite logicielle VDI de VMware, ajoute le support des postes de travail virtuels Linux, en plus de l’environnement Windows de Microsoft. L’éditeur de Palo Alto a lancé un programme d'accès précoce pour les clients désirant tester en avant-première Horizon 6 avec les distributions Linux de Red Hat et Ubuntu sur des ordinateurs distants et des terminaux mobiles.
vCloudXperts provides Instructor Led Online Live vmware vsphere vcp 7 Datacenter Virtualization Training and Advanced Cloud Professional Training.
https://www.vcloudxperts.com
Demo Session registration: https://www.vcloudxperts.com/index.php#download-syllabus
This Intensive Training with Hands On Labs and Certification Exam Prep will help you Master The Most Demanding Technologies
1. VMware Datacenter Virtualization: vSphere 7 VCP - VMware Certified Professional
2. AWS Cloud Solutions Architect Associate
3. AWS Cloud Solutions Architect Professional
4. AWS Cloud Network Specialty
5. Azure Cloud Administration
6. Google Cloud Professional
7. RedHat Linux Administration
8. Python Programing for System Administrators (Windows / Linux Admins)
9. Docker Certified Administrator
9. Kubernetes
How to Optimize Microsoft Hyper-V Failover Cluster and Double PerformanceStarWind Software
High availability in a virtualized workload may require to sacrifice failover cluster performance. Using an optimized for virtualization approach on data storage and virtual machines placement and protection will give you desired boost of performance.
The presentation shows how to:
- Achieve true Hyper-V cluster high availability with just 2 Hyper-V hosts and zero storage hardware
- Boost Hyper-V cluster performance by configuring automatic dynamic optimization
- Effectively track VMs resources usage
- Save an extra 30% of Hyper-V cluster resources by utilizing agentless antivirus
Management tools and techniques for controlling, customizing, and managing your VMware ESXi infrastructure without the use of the Linux-based Service Console.
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.
XenServer, Hyper-V, and ESXi - Architecture, API, and Coding_Humair_Ahmed_
XenServer, Hyper-V, and ESXi hypervisor comparison in regards to market share, architecture/installation, and APIs/coding. Technical details, demos, and code provided. Visit my blog at http://humairahmed.com/blog/.
White Paper: Using VMware Storage APIs for Array Integration with EMC Symmetr...EMC
This white paper discusses how VMware's vSphere Storage APIs for Array Integration, also known as VAAI, can be used to offload perform various virtual machine operations on the EMC Symmetrix.
20 Tips to Help Job Seekers Prepare for an Interview at VMwareVMware
There are many resources out there to prepare. It's important to get a holistic and comprehensive view to prep yourself for an interview. We asked our recruiters what they would recommend for job seekers, and here is what we heard.
• Windows 7, Windows 2008 R2 and 2012 R2 server installation, configuration and troubleshooting.
• Group Policy Object, Active Directory Roles installations and configuration.
• Hyper V, VMware Workstaion9, ESXi, vCenter, VM Ware products, Experience with VM Ware ESXi Clustering, Vm ware Troubleshooting, Configuration, VM Templates , cloning, upgrades etc DRS and HA.
• DFS, DHCP, DNS, WDS, WSUS, Migration, Backup & Restore.
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
This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area on the exam. http://www.allpass4sure.com/microsoft-pdf-70-410.html
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Enhancing Performance with Globus and the Science DMZGlobus
ESnet has led the way in helping national facilities—and many other institutions in the research community—configure Science DMZs and troubleshoot network issues to maximize data transfer performance. In this talk we will present a summary of approaches and tips for getting the most out of your network infrastructure using Globus Connect Server.
Le nuove frontiere dell'AI nell'RPA con UiPath Autopilot™UiPathCommunity
In questo evento online gratuito, organizzato dalla Community Italiana di UiPath, potrai esplorare le nuove funzionalità di Autopilot, il tool che integra l'Intelligenza Artificiale nei processi di sviluppo e utilizzo delle Automazioni.
📕 Vedremo insieme alcuni esempi dell'utilizzo di Autopilot in diversi tool della Suite UiPath:
Autopilot per Studio Web
Autopilot per Studio
Autopilot per Apps
Clipboard AI
GenAI applicata alla Document Understanding
👨🏫👨💻 Speakers:
Stefano Negro, UiPath MVPx3, RPA Tech Lead @ BSP Consultant
Flavio Martinelli, UiPath MVP 2023, Technical Account Manager @UiPath
Andrei Tasca, RPA Solutions Team Lead @NTT Data
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Welcome to the first live UiPath Community Day Dubai! Join us for this unique occasion to meet our local and global UiPath Community and leaders. You will get a full view of the MEA region's automation landscape and the AI Powered automation technology capabilities of UiPath. Also, hosted by our local partners Marc Ellis, you will enjoy a half-day packed with industry insights and automation peers networking.
📕 Curious on our agenda? Wait no more!
10:00 Welcome note - UiPath Community in Dubai
Lovely Sinha, UiPath Community Chapter Leader, UiPath MVPx3, Hyper-automation Consultant, First Abu Dhabi Bank
10:20 A UiPath cross-region MEA overview
Ashraf El Zarka, VP and Managing Director MEA, UiPath
10:35: Customer Success Journey
Deepthi Deepak, Head of Intelligent Automation CoE, First Abu Dhabi Bank
11:15 The UiPath approach to GenAI with our three principles: improve accuracy, supercharge productivity, and automate more
Boris Krumrey, Global VP, Automation Innovation, UiPath
12:15 To discover how Marc Ellis leverages tech-driven solutions in recruitment and managed services.
Brendan Lingam, Director of Sales and Business Development, Marc Ellis
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
The Metaverse and AI: how can decision-makers harness the Metaverse for their...Jen Stirrup
The Metaverse is popularized in science fiction, and now it is becoming closer to being a part of our daily lives through the use of social media and shopping companies. How can businesses survive in a world where Artificial Intelligence is becoming the present as well as the future of technology, and how does the Metaverse fit into business strategy when futurist ideas are developing into reality at accelerated rates? How do we do this when our data isn't up to scratch? How can we move towards success with our data so we are set up for the Metaverse when it arrives?
How can you help your company evolve, adapt, and succeed using Artificial Intelligence and the Metaverse to stay ahead of the competition? What are the potential issues, complications, and benefits that these technologies could bring to us and our organizations? In this session, Jen Stirrup will explain how to start thinking about these technologies as an organisation.
The Metaverse and AI: how can decision-makers harness the Metaverse for their...
Vmware inter
1. Interview Questions: VMware L3 Administrator
December 29, 2010gunnalagLeave a commentGo to comments
This is an attempt to make a list of typical questions you can expect in the initial technical round for
VMware administrator L3 positions. Apparently most people can answer these questions just by
preparation but it makes to the interviewer about how strong the candidate in basic overview.
1. What will be your daily activities in VMware
2. What is the difference between VMware and Hyper-V, when do you use one over the other
3. When you encounter PSOD, what steps do you follow
4. What do you do when you encounter “Failed to load, swap file not found” error
5. What port does P2V uses
6. What is the command to format and mount a file system
7. What is dvSwitch and why do you need it
8. What is the command you use for reading vm dump file and where does dump file reside
9. Explain the process you follow for Physical to Virtual conversion
10. What is P2V Cleanup and explain it
11. What do you do when the VC becomes frozen/not responding
12. What is ballooning and explain it
13. What is DRS
14. What is HA and how frequent it checks the hosts connectivity
15. what is AAM (Always Available Manager, Active Alert Manager) and it’s role
16. What is Forged Traffic and what is the default value it’s set to
17. What is Promiscuous mode
18. What is RDM and when do you use it
19. What is ks.conf file
20. How do you expand root/C: drive of a VM
21. What are the features of VMFS
22. How do you restart the services of ESX and vCenter
23. Which port vCenter server listens on or uses
24. What is traffic shaping/filtering/prioritization, NIC teaming
25. Suppose I select 1 mb block size what is the maximum file size I can have?
26. What are Networking Policies
27. What network types available in VMWare?
I’ll prepare a list for questions in next rounds as well when I find some time again.
Vmware interview questions third round of technical interview in IBM
1. Explain the physical topology of Virtual Infrastructure 3 Data Centre ?
2. How do you configure Clusters,Hosts,Resource Pools in VI3 ?
3. What are resource pools & whats the advantage of implementing them ?
4. Explain why Vmware ESX Server is preferred over Virtual Server or Workstation for enterprise
implementation ?
5. In what different scenarios or methods can you manage a VI3 ?
6. Explain the difference between access through Virtual Infrastructure Client (vi client), Web access,
Service Console access(ssh) ?
2. 7. Explain advantages or features of Vmware Virtual Machine File System (VMFS) ?
8. What are the types of datastores supported in ESX3.0 ?
9. How can you configure these different types of datastores on ESX2.5 ?
10.What is Vmware Consolidate Backup (VCB) ? Explain your work exposure in this area ?
11.How do you configure Vmware Virtual Centre Management Server for HA & DRS ? What are the
conditions to be satisfied for this setup ?
12.Explain your work related to below terms :
VM Provisioning:
Alarms & Even Management:
Task Scheduler:
Hardware Compatibility List:
13.What SAN or NAS boxes have you configured VMware with ? How did you do that ?
14.What kind of applications or setups you have on you Virtual Machines ?
15.Have you ever faced ESX server crashing and Virtual Centre Server crash? How do you know the
cause of these crashes in these cases ?
Increasing VMware VMFS Volume
April 17, 2011gunnalagLeave a comment
With vSphere-4, you have option to increase the VMFS Volume similar to the way you expand
the disk using Snap Drive/DiskPart on Window servers.
Here are the steps for doing this:
1. Increase the LUN (and Volume if applicable) size to new size on Neap Side.
2. Select a particular host that has access to this Shared VMFS Volume -> Configuration -> Storage
-> Properties
3. Verify that the „Device Capacity‟ and „Primary Partitions Capacity‟ shows the difference in size
that‟s increased above.
4. Choose „Increase‟ -> select the desired Volume to be expanded and ensure its showing that free
space will be added to expand the disk.
5. Perform Storage Refresh on other hosts in the Cluster to get the new disk size reflected (can use
Get-VMHostStorage –Refresh cmdlet to do this task)
These steps can only be done by directly connecting to any of the hosts in the cluster.
Categories:VMware
Administering ESXi 4.1
January 3, 2011gunnalagLeave a comment
1. Choose the right version
1. ESXi free – unlimited use but with features limitations
2. ESXi Installable – commercial version of ESXi and supports all advanced features. Can be
installed on any choosen server.
3. 3. ESXi Embedded – preinstalled as firmware so that you don‟t have to install it again. The
downside is you can‟t transfer the license to other physical hardware.
2. Requirements (for ESX Installable version called VMware VMvisor)
1. With x64 bit x86 processor (i.e., x86-64). x86-64 is an extension of the x86 instruction set.
Examples: AMD Opteron‟s and Intel Xenon and Nehalem processors. With VT enabled.
2. Minimum of 2 GB RAM. For upgrades, 3GB RAM is required if the ESXi host is managed by
vCenter Server.
3. One or More 1 Gb network adapter.
4. Create the DNS entry for the static IP with host A record entry. Note IPv6 is not supported for
ESXi “PXE” installation.
5. Hardware Storage Controllers (Basic SCSI Adapter, FC Adapter, Internal RAID Controller,
SAS, or SATA)
6. Storage/Disk space
1. Basic SCSI Controller or SCSI disk drives
2. SATA disk through supported SAS contollers, or RAID LUN with unpartitioned space.
3. SAS disk drives
4. FC or iSCSI
7. Download ESXi Installable version bootable image (ISO/CD)
3. Installation
1. Insert the ESXi bootable CD or connect the ISO via server remote management applications like
1. HP Integrated Lights-Out (iLO),
2. Dell Remote Access Card (DRAC),
3. IBM management module (MM), and IBM Remote Supervisor Adapter II (RSA II), etc.,
2. Boot the server to start the ESXi bootable device
3. Choose the boot image from the VMware VMvisor Boot Menu
1. ESXi Installer (enter by default with in 10 seconds)
2. Boot from the Local Disk
3. Press [Tab] to edit Options
4. Choose the Install option from the Welcome screen options
1. [ESC] to Cancel
2. (R) Repair
3. (Enter) Install
4.
5. g
5. Press F11 to “Accept EULA and Continue”
6. Select a Disk
7. Choose the right disk from the displayed list and press Enter
8. Press F11 to confirm the selection
9. Installation Proceeds and once it‟s done
1. ESXi will be installed in Evaluation mode
2. There is no Host based Licensing for ESXi
10. Removable the install disk and Press Enter to reboot
11. Once server/hypervisor boots up, Press F2 to “Customize System” from “Direct Console Mode”
12. F
4. Post Install Configuration
1. Configure Password (Default Not Set)
4. 2. Configure Lockdown Mode (Default Disabled)
1. Prevents remote users from logging on to host using “root” user (like disable SSH)
3. Network Configuration Options
1. Configure Management Network
1. Network Adapters
2. VLAN
3. IP Configuration (Default gets a IP address from DHCP, you have to set a Static IP here)
4. IPv6 Configuration
1. In case if IPv6 is enabled or disabled it‟s will restart the HOST
5. DNS Configuration
1. Type Primary and Secondary DNS servers
2. Provide the ESX host name in FQDN format
6. Custom DNS Suffixes
7. Confirm the network changes by press <Y> yes to “Apply changes and restart management
network?”. You may notice a brief network outage on for that host and it‟s guests.
8.
2. Restart Management Network
1. May be required to restore networking or to renew DHCP lease.
2. If DHCP renew results in a new identity, the remote management software will be disconnected
3. Test Management Network
1. Ping the configured Default Gateway
2. Ping the configured Primary and Secondary DNS servers
3. Resolve the configured host name
4. Disable Management Network
5. Restore Standard Switch
4. Configure keyboard
5. View Support Information
1. Server serial number
2. License serial number
3. SSL Thumbprint
4. VMware Global Support Services URL
5.
6. View System logs
1. <1> Messages
2. <2> Config
3. <3> Management Agent (hostd)
7. Restart Management Agents
1. Are the programs that allow remote management software to monitor and control this host
2. This will disconnect all the remote management software
8. Reset System Configuration
1. All the system parameters will be reverted to their software defaults. Including any parameters
customized by the hardware manufacturer.
2. The root password will be reset to nothing
3. All Virtual Machines will be unregistered
4. This operation requires a HOST restart so migrate your VMs to other hosts if needed
9. Remove Custom Extensions
5. 10. Press Alt+F12 to view the real time Kernel Logs/Activities use Alt+F2 to return to Direct
Console User Interface
11. Login to Tech Support mode: (which unsupported if run without VMware support consultation)
1. Press Alt+F1 to go to Text mode console (unsupported Tech support mode) from Direct Console
User Interface
2. You don‟t get a login prompt there and none of the keys will be echo‟ed back
3. Type unsupported
4. Then type root account password at the Password prompt
5. Type Exit to exit
6. Then Press Alt+F2 to return to Direct Console User Interface
7.
12.
13.
14. h
Categories:VMware
Administering ESX 4
January 3, 2011gunnalagLeave a comment
1. Requirements
1. With x64 bit x86 processor (i.e., x86-64). x86-64 is an extension of the x86 instruction set.
Examples: AMD Opteron‟s and Intel Xenon and Nehalem processors. With VT enabled.
2. Minimum of 2 GB RAM
3. One or More network adapter. The ESX installer needs a live network connection to properly
detect certain network settings, such as the host name under DHCP.
4. IPv4 static IP address. Create the DNS entry for the static IP with host A record entry. IPv6 is
not supported for ESX installation.
5. Hardware Storage Controllers (SCSI Adapter, FC Adapter, or Internal RAID Controller)
6. Storage/Disk space
1. SCSI disk, FC LUN, or RAID LUN with unpartitioned space.
2. A hardware iSCSI, a disk attached to an iSCSI controller, such as the QLogic qla405x. Software
iSCSI is not supported for booting or installing ESX.
3. The service console must be installed on a VMFS datastore that is resident on a host‟s local disk
or on a SAN disk that is masked and zoned to that particular host only. The datastore cannot be
shared between hosts.
4. ESX at least requires 1.25 GB. If the service console is installed on the same machine at least 9.5
GB is required.
5. Must be at least 10GB if you install the components on a single disk.
7. Download ESX bootable image (ISO/DVD) (Note that it‟s a DVD image not a CD, if you have
to burn it use DVD only)
2. Installation
1. Insert the ESX bootable CD or connect the ISO via server remote management applications like
1. HP Integrated Lights-Out (iLO),
2. Dell Remote Access Card (DRAC),
3. IBM management module (MM), and IBM Remote Supervisor Adapter II (RSA II), etc.,
2. Boot the server to start the ESX bootable device
3. Choose the install mode from below options
1. Install ESX in graphical mode
6. 2. Install ESX in text mode
3. ESX Scripted Install using USB ks.cfg file
4. ESX Scripted Install to first disk
5. ESX Scripted Install to first disk (overwrite VMFS)
6. Boot from first hard disk
7. F2 to other options
4. Choose the Keyboard layout (Required)
5. Install Custom drivers (Optional). In case, if you have any hardware that is not on VMware‟s
hardware compatibility list, then you should install the respective device drivers provided by the
device vendor for ESX platform. You can install the custom drivers via CLI later.
6. ESX will load the default and specified drivers
7. vSphere license key (Optional). Primarily for Host based Licensing. For centralized licensing
select later and activate the host via vSphere. If not provided ESX will be installed in Eval mode
and you need to activate the host by valid license within 60 days period.
8. Choose the Network Adapter. (Required)
9. Specify VLAN ID (Optional) if you want the host to be in a specific vLAN. Use MAC address
to verify which adapter it‟s referring to.
10. Configure Network Adapter. You can allow DHCP to configure the network during installation.
After installation, you can change the network settings. Thus below details are Optional if you
use DHCP.
1. IP address
2. Subnet mask
3. Gateway
4. Primary DNS
5. Secondary DNS
6. Host name (provide a FQDN )
11. Use “Test these settings” tab to verify the network accessibility
12. Choose the Setup type
1. Standard Setup (Setup ESX on a single hard drive or LUN)
2. Advanced Setup
1. Virtual disk partitions. View and customize the individual ESX partitions
2. The installer creates three basic partitions: /boot, vmkcore, and VMFS.
3. The service console VMDK file (The name of this file is esxconsole-<system-
uuid>/esxconsole.vmdk) resides on the VMFS partition. The service console VMDK file
contains /, swap, and /var/ log, by default, and any other partitions that you specify.
4. Configure bootloader automatically (leave checked if unsure)
1. Bootloader kernel options
2. Bootloader password
13. Select the Install location (Required)
1. By default lists Local Storage
2. If you have hardware iSCSI target attached disk then you will see the Remote Storage Location
14. Choose Datastore. Specify if you already have a datastore created for the host or let the installer
create the new Datastore by specifying the name for the new datastore to be created.
15. Create on the same device as ESX
16. Then configure the Service Console virtual disk image
17. Increase the /var/log partition size to a good number say 5 GB instead of default 2 GB
7. 18. Time zone
19. Configure Date and Time
1. Use Automatically and specify the NTP server.
1. Specify your internal NTP server name
2. You can use the global NTP server pool.ntp.org
3. Then click Synchronize to get the date and time automatically set
2. Manually. Specify the right time
20. Set Administrator (Root) password. Password must be at least 6 character long
21. Additional user accounts. This is required if you want to immediately REMOTE into the ESX
host via ssh since default root account will be denied for remote ssh.
22. Review the Summary of Installation Settings
23. Click Finish to reboot the server and start ESX
24. Use URL via browser to manage the server
25. After the server boot up, verify that all the boot checks passed with status OK
26. Press „I‟ to enter the interactive startup
27. Press Alt+F1 for console login and Alt+F11 to return back to standard server console
28.
3. Patching
4. Upgrading
5. Retiring
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Categories:VMware
Software vs. hardware iSCSI for VMware ESX
January 1, 2011gunnalagLeave a comment
1. Hardware iSCSI Features and Limitations
Below are some items to consider if you are planning to use the iSCSI hardware intitiator.
1. ESX Server host booting from iSCSI SAN is possible only with hardware iSCSI initiator
2. Multipathing support for failover only, no load-balancing by using multiple QLA4010s
3. Support for VMotion, VMware HA, and VMware DRS
4. Support for RDMs
5. No support for Microsoft Cluster Server
6. No VMware Consolidated Backup over iSCSI
2. Software iSCSI Features and Limitations
Below are some items to consider if you are planning to use the iSCSI software intitiator.
1. No support for booting ESX Server from software iSCSI
2. Software initiator supports only a single storage interface (vmhba40)
3. Multipathing support for failover only, no load balancing by using multiple physical network
adapters (NIC teaming)
4. Support for VMotion, VMware HA, and VMware DRS
5. Support for RDMs
6. No support for Microsoft Cluster Server
7. No VMware Consolidated Backup over iSCSI
3. Step to enable MultiPath failover for iSCSI storage
If you plan to use NIC teaming to increase the availability of your network access to the iSCSI
storage
8. array, you must turn off port security on the switch for the two ports on which the virtual IP
address is shared.
The purpose of this port security setting is to prevent spoofing of IP addresses. Thus many
network
administrators enable this setting. However, if you do not change it, the port security setting
prevents failover
of the virtual IP from one switch port to another and NIC teaming cannot fail over from one path
to another.
For most LAN switches, the port security is enabled on a port level and thus can be set on or off
for each port.
Categories:VMware
iSCSI SAN Design Considerations
January 1, 2011gunnalagLeave a comment
1. A basic difference between iSCSI and Fibre Channel is that when an iSCSI path is overloaded,
the TCP/IP protocol drops packets and requires them to be resent. Fibre Channel
communications over a dedicated path are not at risk of being overloaded. When a network path
carrying iSCSI storage traffic is oversubscribed, a bad situation quickly grows worse and
performance further degrades as dropped packets must be resent.
2. Another potential disadvantage with implementing software-initiator iSCSI (but not hardware-
initiator iSCSI) is that standard 10/100 Ethernet interfaces do not have enough throughput for
practical iSCSI work. Gigabit Ethernet interfaces are required, and those interfaces tend to
consume large amounts of CPU time. One way of overcoming this demand for CPU resources is
to use TOEs (TCP/IP offload engines).
3. TCP/IP offload engines shift TCP packet processing tasks from the server CPU to specialized
TCP processors on the network adapter or storage device. The QLA4050 hardware initiator,
which is supported on ESX Server 3.0, uses a TOE.
4. iSCSI does not work well over most shared wide area networks. one should consider iSCSI a
local-area technology, not a wide-area technology, because of latency issues and security
concerns.
5. One should also segregate iSCSI traffic from general traffic. Layer 2 VLANs are a particularly
good way to implement this segregation.
6. Best practice is to have a dedicated LAN for iSCSI traffic and not share the network with other
network traffic.
It is also best practice not to oversubscribe the dedicated LAN.
7. f
Categories:VMware
VMware HA
December 31, 2010gunnalagLeave a comment
HA stands for one of the critical enterprise cluster feature of VMware called “High Availability”.
It can be configured on a VMware cluster to auto recover VM‟s from a ESX host failure.
1. When you configure HA via vCenter Server on VMware cluster, it
1. installs Automated Availability Manager (AAM) (VMware HA agent) on individual ESX host
9. 2. The HA agent (AAM) runs a heartbeat mechanism on each host in a cluster to signal that the host
is running and is a part of the cluster.
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Categories:VMware
KickStart automated ESX install
December 31, 2010gunnalagLeave a comment
1. Extract the ESX media from the bootable ISO/DVD received from VMware
2. Copy them to a network location and make them accessible
3. Create the ks.cfg (kickstart configuration file) answer file with custom values to installation
options. The main sections of the ks.cfg file are as below
1. accepteula or vmaccepteula (required)
2. autopart (required)
3. clearpart (optional)
4. dryrun (optional)
5. install (required)
6. keyboard (optional)
7. serialnum or vmserialnum (optional)
8. network (optional)
9. paranoid (optional)
10. part or partition (optional)
11. rootpw (required)
12. %include or include
13. %pre (optional)
14. %post (optional)
15. %firstboot
4. The previous version to 4.0 of ESX server used to support incomplete ks.cfg file by which it uses
the defined values for settings in the ks.cfg and prompt user for configuring the rest. This is now
changed from ESX[i] 4.0 where you should have all the responses specified in ks.cfg or don‟t
have the ks.cfg at all. So ESXi only allows a zero-touch builds via ks.cfg.
5. To have readily setup solution, refer to Virtaul Applicances “ESX Deployment Appliance
(EDA)“
6. References:
1. http://communities.vmware.com/blogs/vmwareinsmb/2010/07/13/esxi-41-scripted-installation-
via-pxe-and-kickstart
2. http://www.virtuallyghetto.com/2010/09/automating-esxi-41-kickstart-tips.html for ks.cfg setup
tips
3. http://www.kendrickcoleman.com/index.php?/Tech-Blog/esxi-41-kickstart-install-wip.html
4. autodeploy_fling.pdf (application/pdf Object)
5. h
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10. Categories:VMware
Setting up Virtual Infrastructure using VMware
December 30, 2010gunnalagLeave a comment
1. ESX server
1. Administering ESX 4
2.
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2. ESXi server
1. Virtual Center (vCenter) server (is the centralized management server for complete
infrastructure)
1. Installed on a Windows server that is part of AD domain
2. vSphere client (VMware-viclient.exe)
1. Download from any of ESX server URL, vCenter server or ISO from VMware
2. Install on vCenter server or any workstation
3. Choose to install “Host Update Utility 4.0″
1. This tool allows you to upgrade ESX 3.x to ESX 4.0 and ESXi 3.5 to ESXi 4.0. The utility also
allows you to patch and update ESXi hosts.
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3. Using Software
1. vSphere Client is a single GUI application to
1. Connect to specific ESX host and administer
2. Connect to vCenter server to manage multiple ESX hosts
3. You can to the remote server using
1. IP Address or host name
2. Logon using
1. vCenter administrator logon credentials or
2. loggedon Windows session credentials if it has all permissions
3. Configure AD security group and assign permission to your Windows logon account and use that
account
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Categories:VMware
Virtualization
December 30, 2010gunnalagLeave a comment
Definition in simple terms referring to practical understanding:
Process of separating physical components of computing infrastructure from the logical
components that demand the resources.
1. Types of Virtualization:
1. Server : Where you use Virtual machines to separate hardware from virtual operating systems,
allowing you to run the multiple operating systems on a single machine, all at the same time.
2. Storage: Removing physical mapping of storage and moving storage into logical objects, which
can be easily managed
3. Network: process of combining hardware and software network resources and network
functionality into a single, software-based administrative entity, a virtual network. There two
types of N/W Virtualizations
1. Internal: Network functionality provided by software
2. External: combining multiple network functions into one unit
4. Application: Process of encapsulating applications to be able to run on another system without
actually installing them, allowing applications to run without conflicts
5. Desktop: consolidation of desktop computers into virtualized server systems
6. d
2. How server virtualization can help?….
1. Consolidate data center servers, desktops,
2. efficient h/W resources utilization,
3. less energy and cooling,
4. less IT staff to maintain and increased IT productivity
5. respond faster to business needs by faster server deployments
6. HA and load-balancing
Categories:VMware
PXE booting to RIS servers after migrating to WDS PXE in VM infrastructure
December 29, 2010gunnalagLeave a comment
1. Create a new VDI with
a. Latest NIC VMXNET3, you need latest version in order to boot to WDS server. The
default NIC „Flexible‟ doesn‟t work
b. Use SCSI controller of BUS logic. None of the latest LSI logic SCSI controller work with
RIS builds
2. Boot the VDI to Win7 build
3. Have a computer account created with all the required options (through pre-setup.bat)
12. 4. Change the netbootMachineFilePath attribute to point to RIS build servers (say
buildserver1.org.com).
a. AD object „Attribute Editor‟ tab is not visible via dsa.msc, use adsiedit instead.
b. Move computer to respective AD site OU.
5. Remove the latest version NIC
6. Add a Flexible NIC to let the computer to boot to RIS server
7. Build computer with Automatic setup in RIS. Custom setup doesn‟t work.
Categories:VMware
Let’s troubleshoot VMware
December 29, 2010gunnalagLeave a comment
1. Scenario#1: Logon to Virtual Center Server Fails with generic error “Unable to connect to remote
server”
1. Isolate if it’s a Networking issue
1. adfind – Ensure the server name is typed correctly and is a valid Windows server in AD using adfind
2. ping – Ensure the remote vCenter server is reachable using ping
3. nslookup – Ensure the DNS entries are correct for the server by doing a nslo0kup
4. FQDN – use FQDN JIC if some DNS Zones entries issues is around causing the network connectivity
2. Isolate if it’s a Windows server issue
1. telnet to 443 – Check the connectivity to the vCenter web service to ensure web service at least
responding
2. sc query “vmware virtualcentre server” – Ensure that the VMware virtualcentre server service is
running fine
3. eventvwr – check if there are any vcenter errors in application log or service/system errors in system
log
4. vpxd.exe – check the vpxd log file %ALLUSERSPROFILE%VMwarevmware virtualcentreLogsvpxd-
#.log”
5. Attempt to start the service if it’s not running
6. If service fails with error, correlate it with the log statements in vpxd log files
3. Isolate if it’s a DB connectivity issue
1. In case if there are any ODBC errors in vpxd log file follow below steps according to the error
message “usually authentication errors”
2. if the DB used is a locally installed SQlExpress version or Access DB, verify that the SQL Server DB
service is running fine
3. If the DB is a remote SQL/Oracle DB, check the reachability to the server
4. Open the ODBC Manager and very the DSN entry and test the connectivity to the server
5. In case of authentication issues, try to use
1. the other login account or
2. attempt with “Integrated Windows authentication”
6. If still there is any issue, correlate the issue with SQL authentication/security and DB logging
7. Once all the issues are isolated and if it’s indeed DB connection issues that got fixed, then attempt to
start the “vmware virtualcentre server” service on vCenter server.
Categories:VMware
Interview Questions: VMWare L3 Administrator
13. December 29, 2010gunnalag4 comments
This is an attempt to make a list of typical questions you can expect in the initial technical round for
VMWare administrator L3 positions. Apparently most people can answer these questions just by
preparation but it makes to the interviewer about how strong the candidate in basic overview.
1. What will be your daily activities in VMWare
2. What is the difference between VMWare and Hyper-V, when do you use one over the other
3. When you encounter PSOD, what steps do you follow
4. What do you do when you encounter “Failed to load, swap file not found” error
5. What port does P2V uses
6. What is the command to format and mount a file system
7. What is dvSwitch and why do you need it
8. What is the command you use for reading vm dump file and where does dump file reside
9. Explain the process you follow for Physical to Virtual conversion
10. What is P2V Cleanup and explain it
11. What do you do when the VC becomes frozen/not responding
12. What is ballooning and explain it
13. What is DRS
14. What is HA and how frequent it checks the hosts connectivity
15. what is AAM (Always Available Manager, Active Alert Manager) and it’s role
16. What is Forged Traffic and what is the default value it’s set to
17. What is Promiscuous mode
18. What is RDM and when do you use it
19. What is ks.conf file
20. How do you expand root/C: drive of a VM
21. What are the features of VMFS
22. How do you restart the services of ESX and vCenter
23. Which port vCenter server listens on or uses
24. What is traffic shaping/filtering/prioritization, NIC teaming
25. Suppose I select 1 mb block size what is the maximum file size I can have?
26. What are Networking Policies
27. What network types available in VMWare?
I’ll prepare a list for questions in next rounds as well when I find some time again.
Check the health of all Hosts and VM objects in vCenter. Are there any active alarms in
vCenter? Have you set up any alarms in the first place? Do the alarms automatically
trigger notification or any type of incident tracking mechanism?
Are all vCenter plug-ins functioning properly?
Do you have any Host Hardware issues? Alarms, bad memory, power supply or capacity
issues?
Are all Hosts in compliance with Host Profiles?
Are there any resource bottlenecks? Memory, CPU, Disk, Network? Do you have any,
or need any, additional tools to have a better handle on this?
Are you running at your optimum resource levels? In other words, is the load properly
distributed?
Are you running out of resources anywhere? LUNs with low disk space, etc. Do you
need to start looking at budgeting for additional capacity?
Check for Firmware updates on Host hardware
Check for ESX Patches
14. Check for VM Patches
Check VMware Tools version
Run scripts to identify the existence of VMs with snapshots and follow up to see if they
are still needed.
Have you schmoozed with your Storage Admins lately? A good idea since you cannot
get very far without them.