Hyper-V best practices document provides recommendations in three main areas:
1. Host server hardware configuration including standardized hardware, latest drivers, and optimized power settings.
2. Hyper-V installation and configuration including roles, features, paths, and antivirus exclusions.
3. Virtual machine configuration best practices such as Generation 2 VMs, optimized devices, and automatic stop settings.
Dynamic Wounds on Animated Characters in UE4Michał Kłoś
Talk describes the challenge of combining rich VFX with interaction of animated characters. During the presentation will give an overview on setup of materials, scripting and programming. Profiling and background of technical constraints will also be brought up. This talk covers technical art topics, but artists and programmers will also find interesting details. Best for people familiar with Unreal Engine 4 or for those who want to see how to create current state of the art VFX with UE4.
제가 메타버스 강연/컨설팅할 때 사용하는 기본 자료입니다.
<목차>
버즈워드 vs. 메가 트렌드
첫 번째 세상: 증강현실 세계
두 번째 세상: 라이프로깅 세계
세 번째 세상: 거울 세계
네 번째 세상: 가상 세계
누가, 어떻게 사는가?
메타버스가 일으키는 빅뱅
메타버스 진입 전략
메타버스 플랫폼 설계 원칙
매트릭스는 오는가?
날뛰는 기술의 뒷모습
Dynamic Wounds on Animated Characters in UE4Michał Kłoś
Talk describes the challenge of combining rich VFX with interaction of animated characters. During the presentation will give an overview on setup of materials, scripting and programming. Profiling and background of technical constraints will also be brought up. This talk covers technical art topics, but artists and programmers will also find interesting details. Best for people familiar with Unreal Engine 4 or for those who want to see how to create current state of the art VFX with UE4.
제가 메타버스 강연/컨설팅할 때 사용하는 기본 자료입니다.
<목차>
버즈워드 vs. 메가 트렌드
첫 번째 세상: 증강현실 세계
두 번째 세상: 라이프로깅 세계
세 번째 세상: 거울 세계
네 번째 세상: 가상 세계
누가, 어떻게 사는가?
메타버스가 일으키는 빅뱅
메타버스 진입 전략
메타버스 플랫폼 설계 원칙
매트릭스는 오는가?
날뛰는 기술의 뒷모습
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
Global Medical Cures™ | Blood disorders
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | HIV and AIDS Medicines
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | National Strategy for Combating Antibiotic Resistant ...Global Medical Cures™
Global Medical Cures™ | National Strategy for Combating Antibiotic Resistant Bacteria
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Get it Straight- The Facts about Drugs (STUDENT GUIDE) Global Medical Cures™
Global Medical Cures™ | Get it Straight- The Facts about Drugs (STUDENT GUIDE)
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Growing Up Drug Free- Parents Guide to PreventionGlobal Medical Cures™
Global Medical Cures™ | Growing Up Drug Free- Parents Guide to Prevention
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | What I Need To Know About BOWEL CONTROL
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Fast Facts- Hip Replacement
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Directory of Diabetes Organizations
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
This directory lists Government agencies and professional and voluntary associations that provide diabetes information and resources. Some of these diabetes organizations offer educational materials and support to people with diabetes and the general public, while others serve primarily health care providers.
Global Medical Cures™ | Health and Retirement Study
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | African American Men & High Blood Pressure ControlGlobal Medical Cures™
Global Medical Cures™ | African American Men & High Blood Pressure Control
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Your Guide to Lowering High Blood Pressure
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Overweight and Obesity Statistics (USA)
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Global Medical Cures™ | Post Traumatic Stress Disorder (PTSD)
DISCLAIMER-
Global Medical Cures™ does not offer any medical advice, diagnosis, treatment or recommendations. Only your healthcare provider/physician can offer you information and recommendations for you to decide about your healthcare choices.
Virtual, Faster, Better! How to Virtualize IBM Notes V10panagenda
Virtualizing IBM Notes V10 (incl. Language Packs, Feature Packs, IBM Connections Plugins for Notes and more) is an effective way to standardize your client infrastructure, reduce costs for workstation hardware and give your users a consistent experience. Learn how to implement, configure and tune IBM Notes V10 on platforms like Citrix XenApp/XenDesktop and get the most out of it by dramatically reducing start-up times (up to 70%) and more. Beside a live demo you'll also get some worst practices stories as Chris shares his experiences from real-world client virtualization projects and a recipe, how to run the Installation and initial configuration in the best possible way.
The following slides were part of a company meeting where I was giving a VMware 101 lesson for our engineers who work outside of data center technologies. It's a high level overview.
CollabSphere2018 - Virtual, Faster, Better! How to virtualize IBM Notes V10Christoph Adler
Virtualizing IBM Notes V10 (incl. Language Packs, Feature Packs, IBM Connections Plugins for Notes and more) is an effective way to standardize your client infrastructure, reduce costs for workstation hardware and give your users a consistent experience. Learn how to implement, configure and tune IBM Notes V10 on platforms like Citrix XenApp/XenDesktop and get the most out of it by dramatically reducing start-up times (up to 70%) and more. Beside a live demo you'll also get some worst practices stories as Chris shares his experiences from real-world client virtualization projects and a recipe, how to run the Installation and initial configuration in the best possible way.
PCI Pass-through - FreeBSD VM on Hyper-V (MeetBSD California 2016)iXsystems
The slides for Kylie Liang's presentation, “PCI Pass-through - FreeBSD VM on Hyper-V”, given at MeetBSD California 2016 in Berkeley, CA.
A recording of the talk can be viewed at: http://bit.ly/2hteton.
Definition of virtualization, Reason for using virtualization, Adopting virtualization, Types of virtualization, Server virtualization, Storage virtualization, Network virtualization, Virtualization clustering, Grid, Cloud& Virtualization,
AdminCamp 2018 - Virtuell - schneller und besser! Notes V10 auf Citrix & VMWareChristoph Adler
Für die Bereitstellung von IBM Notes V10 (Beta-2) in einer virtuellen Umgebung (Citrix XenApp/XenDesktop und/oder VMWare Horizon), müssen einige Punkte beachtet werden, die ausschlaggebend für Performance und Stabilität sind. In dieser Session wird von der Installation bis hin zu automatischen Konfiguration alle relevanten Punkte behandelt um IBM Notes V10 (Beta-2) bestmöglich betreiben zu können. Als Bonus zeigt Ihnen Christoph Adler wie man die Startzeit des Clients um bis zu 70% reduizieren kann. Neben Live-Demos erhalten Sie eine Schritt-fürSchritt - Anleitung um IBM Notes V10 (Beta-2) vollautomatisiert zu installieren und zu konfigurieren.
OpenStack Summit 2013 Hong Kong - OpenStack and WindowsAlessandro Pilotti
OpenStack summit session about how to deploy Windows instances using Cloudbase-Init and Heat!
The session takes care of explaining all the issues you might encounter, for example how to choose the rioght KVM VirtIO drivers.
Von A bis Z-itrix: Installieren Sie den stabilsten und schnellsten HCL Notes-...panagenda
Aufnahme: https://pan.news/20191105de
Abstract: Notes auf Citrix. Sie wollten es haben um Ihr Leben und das Ihrer Endbenutzer einfacher zu machen. Aber wie so oft stellt sich heraus, dass alles seine Nachteile hat. Es gibt eine ganze Reihe von Fallstricken und Problemen beim Installieren und Konfigurieren des Clients. Im Betrieb zeigen sich dann lange Startzeiten und ein langsames UI als echte Produktivitätskiller - dank Datenverzeichnissen auf Netzlaufwerken scheint dies unvermeidbar.
Kein Grund zur Verzweiflung! Sie können all diese Themen in den Griff bekommen!
In diesem Webinar zeigen wir Ihnen Schritt für Schritt wie sie den perfekten Notesclient auf Citrix installieren und konfigurieren. Befehlszeileneinstellungen für die Installation, NotesShareClasses, jvm.properties/rcp-install.properties, stub-notes.ini, config-file und mehr - alles wird detailliert erklärt.
Sie werden auch sehen, wie sie MarvelClient Roaming einsetzen können, um Startzeiten und UI-Performance drastisch verbessern. Es ist möglich: Zentrale Installation mit Datenverzeichnis auf Netzlaufwerken, aber so schnell wie ein lokal installierter Client!
Wenn Sie fertig sind, haben Sie das ultimative Rezept für Notes auf Citrix in Ihren Händen. Worauf warten Sie noch?
AdminCamp 2018 - IBM Notes V10 Performance BoostChristoph Adler
IBM Notes mit einer besseren Performance auszustatten, muss nicht kompliziert sein. In einer bereits für IBM Notes V10 (Beta-2) aktualisierten Version, zeigt Christoph Adler Ihnen, was eingestellt werden muss, um die bestmögliche Performance zu erreichen. In diesem Zuge werden Themen wie ClientClocking, ODS, Netzwerk-Latenzen und gesteigerte Applikations-Performance behandelt. BestPractices bzgl. Arbeitsumgebungs- und Verbindungsdokumente und warum die catalog.nsf so wichtig ist. Verbessern Sie Ihre IBM Notes 10 (Beta-2) Installation so, um Benutzer (wieder) glücklich zu machen. Denn "glückliche Benutzer == glückliche Admins".
2689 - Exploring IBM PureApplication System and IBM Workload Deployer Best Pr...Hendrik van Run
IBM IMPACT 2013 presentation
This lecture will provide an overview of a combination of design, development, configuration and deployment best practices for IBM PureApplication System and IBM Workload Deployer captured from customer engagement experiences.
Configuration Manager: zero-touch & Windows 8.1 (MS NetWork 4)Tomica Kaniski
Presentation about zero-touch Windows 8.1 deployment using System Center 2012 R2: Configuration Manager product, delivered at Microsoft NetWork 4 conference in Bosnia and Herzegovina.
Configuration Manager: zero-touch & Windows 8.1 (WinDays14)Tomica Kaniski
Presentation about zero-touch Windows 8.1 deployment using System Center 2012 R2: Configuration Manager product, delivered at Microsoft WinDays14 conference in Croatia.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
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!
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.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
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.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
5. HOST (HARDWARE)
• use standardized hardware (easier to manage)
• use Windows Server certified hardware (https://www.windowsservercatalog.com/)
• CPU
– server virtualization (Intel VT/AMD-V) and Data Execution Prevention (XD/NX) - Enabled
– SLAT-capable with large cache
– don’t mix vendors (mixed CPU vendors = NO Live Migration)
– Hyper-Threading – enabled
– „compatible”
• performance impact if not using same instruction set
– „best buy” (12-cores per socket?)
• RAM
– ECC-capable
– the more, the better (how many VMs can go down in case of disaster? 30? )
• HDD (local)
– RAID-1 (of two SSDs or HDDs)
6. POWER OPTIONS
• full power or green IT?
• power settings:
– BIOS/UEFI level
– host OS level
– guest OS level
• easy to set:
– POWERCFG.EXE /S SCHEME_MIN (High performance)
– POWERCFG.EXE /S SCHEME_BALANCED (Balanced (recommended))
7. HOST (SOFTWARE) (1)
• Hyper-V host is a Hyper-V host (and nothing else)!
• install the latest drivers & firmware versions (that work)
– use driver/firmware bundles (like SPP for HP servers) to standardize BIOS, NIC,
storage controllers and HBA versions in your environment
• http://h17007.www1.hpe.com/us/en/enterprise/servers/products/service_pack/spp/index.aspx
• install only the necessary (Hyper-V role, Failover Clustering, MPIO + DSM)
– use MinShell or Core (or even Nano ) installation options
– or full GUI, configure and then „downgrade” to Core
– or just full GUI…
• updates & hotfixes
– Cluster – https://support.microsoft.com/en-us/kb/2920151
– Hyper-V – https://support.microsoft.com/en-us/kb/3135020
– support will first ask if you’ve installed all the latest and greatest…
8. HOST (SOFTWARE) (2)
• install backup and monitoring agents
• install antivirus if necessary (company policy)
– don’t forget to set exclusions!
• don’t forget to modify Hyper-V settings after the installation
– default paths are on the system drive!
• Set-VMHost -ComputerName localhost -VirtualHardDiskPath 'D:VMs'
• Set-VMHost -ComputerName localhost -VirtualMachinePath 'D:VMs'
• sign out from Hyper-V hosts when finished working
– we are admins… we love PowerShell… we don’t need RDP
sessions to hosts
• remember to close remote PS sessions as well
10. INSTALLATION
• manual or automatic installation
• speed-up the deployment
– unattend.xml (one-time prepare, many-time use )
– DEMO
– bare-metal host deployment (SCVMM)
– MDT/SCCM deployments
• which version?
– Standard, Datacenter (AVMA)
• which option?
– full GUI, MinShell, Core, Nano?
– full GUI then „downgrade” to Core?
• Remove-WindowsFeature Server-Gui-Shell, Server-Gui-Mgmt-Infra
11. MANAGEMENT TOOLS
• although „real (wo)men” use PowerShell for everything, there are
some other tools that can help you: ()
– Server Manager console
• Best Practices Analyzer (BPA) – useful tool!
– Hyper-V console
• don’t use this one for managing clustered VMs… please
– Failover Cluster console
• Cluster Validation Wizard – VERY useful tool! (ask Microsoft
Support! )
– System Center VMM
• it works… just fine… but not every time… ()
– 3rd party solutions (5nine, SysInternals, …)
12. VIRTUAL MACHINES (1)
• use/convert to Generation 2 VMs where possible
– https://blogs.technet.microsoft.com/jhoward/2013/11/1
4/hyper-v-generation-2-virtual-machines-part-10/
– Convert-VMGeneration tool
• https://code.msdn.microsoft.com/ConvertVMGeneration
• use only supported guest OSes/versions
– https://technet.microsoft.com/en-
us/library/dn792027(v=ws.11).aspx
• update Integration Components regularly
– some OS hotfixes bring new versions of ICs as well!
13. VIRTUAL MACHINES (2)
• don’t use screen savers inside VMs and sign out of VMs
• templates – use the „smarter” sysprep:
– %systemroot%SysprepSysprep.exe /OOBE /Generalize /Shutdown /Mode:VM
– faster sysprep, a lot less hardware recognizing
– don’t use this templates for multiple virtualization platforms
– Convert-WindowsImage
• https://gallery.technet.microsoft.com/scriptcenter/Conv
ert-WindowsImageps1-0fe23a8f
– offline patching – Apply-WindowsUpdate
• https://gallery.technet.microsoft.com/Offline-Servicing-
of-VHDs-df776bda
14. VIRTUAL MACHINES (3)
• devices:
– don’t use Legacy Network Adapter if it’s not absolutely necessary
– the same goes for virtual HBAs
– remove devices you’re not using
• Automatic Stop Action
– do not leave „Save” – change to either Shut Down or Turn Off
• disable unnecessary background „things”:
– SuperFetch
– Windows Search
– Scheduled Tasks (disk defragmentation, …)
– Aero (optimize for performance)
15. ACTIVE DIRECTORY/GPO
• should I join Hyper-V hosts to Active Directory domain?
– YES (existing or the separate „management” domain – little added
security, but huge management overhead; in highly-secured
environments)
– Hyper-V will work if domain is not available (but Live Migration won’t!)
• should I disable Windows Firewall?
– NO (fine-tune it rather!)
– Group Policy is a great tool, and your host is domain-joined already, so…
• GPO – disable RDP Printer Mapping
– Computer Confguration | Policies | Administrative Templates | Windows
Components | Remote Desktop Services | Remote Desktop Session Host |
Printer Redirection | Do not allow client printer redirection | Enable
16. VIRTUAL MEMORY/PAGING FILE
(PAGEFILE.SYS)
• size – leave it on (automatic) at host level
• move it to separate disk
– for VM – SCSI disk
– exclude this disk from Hyper-V Replica
• you can use the following:
$computer = Get-WmiObject Win32_ComputerSystem -EnableAllPrivileges
$computer.AutomaticManagedPagefile = $false
$computer.Put()
$CurrentPageFile = Get-WmiObject -Query "select * from Win32_PageFileSetting where
name='C:pagefile.sys'"
$CurrentPageFile.delete()
Set-WMIInstance -Class Win32_PageFileSetting -Arguments @{name="D:pagefile.sys";InitialSize = 0;
MaximumSize = 0}
17. CLUSTER
• Hyper-V cluster is a Hyper-V cluster (and nothing else)!
• start with at least 3 nodes
• separate network communication
– Corporate, Storage, LiveMigration, vSwitch, Backup
• use teaming where it seems appropriate
• rename cluster resources (networks, disks) and set network
„roles” & priority in cluster
• Cluster Aware Updating
– use it if it makes sense and don’t use it with SCCM
– http://www.altaro.com/hyper-v/cluster-aware-updating-
hyper-v-basics/
18. NETWORKING (1)
• (re)name your NICs (and NIC teams and vSwitches)
– „Local Area Connection 23” is a great name, but…
• use teaming (it’s free and it works!)
– should you use Active/Actives?
• it depends (on underlying network… switches and connections
among them – possible link saturation)
• using 1 NIC in Stand-by is just dumb… or not?
– Dynamic and Switch Independent is the way to go!
• if you have issues with a load balancer, go with Hyper-V port
• which architecture should you use? (converged or not?)
– http://www.hyper-v.nu/archives/hvredevoort/2014/02/definitive-
guide-to-hyper-v-r2-network-architectures/
19. NETWORKING (2)
• no need for a dedicated heartbeat network in cluster
– all cluster networks communicate „heartbeat” signals
• don’t disable VMQ… if you don’t have problems with it
(Broadcom?)
– http://www.dell.com/support/article/us/en/04/SLN132131
• create virtual switches
– … and name them the same (use the convention that works
for you, but same on all hosts)!
– how many vSwitches do I need?
• smallest number that makes sense (use VLANs!)
• (how many NICs? teamed or not? )
20. NETWORKING (3)
• networking optimizations:
– set the right networking order – Corporate network first
(ncpa.cpl – Advanced – Advanced Settings – Adapters and Bindings)
– disable unnecessary network services
• Live Migration – leave only Client for Microsoft Networks, File and
Printer Sharing, TCP/IPv4 and TCP/IPv6 (NetBIOS is disabled)
• iSCSI – leave only TCP/IPv4 and TCP/IPv6 (NetBIOS is disabled)
– choose which networks will register in DNS (Corporate only)
– set cluster network priorities and roles
– choose Live Migration network(s)
– iSCSI network – use MPIO, not teaming… on separate NICs
21. NETWORKING (4)
• DHCP guard (filtering unsolicited DHCP Server offers)
– enable for all VMs, and disable for the ones that need it
– small performance impact
• Router Guard (filtering ICMP Router Advertisements and
redirect messages)
– not used so much
• implement IPAM for addressing
– instead of those old, boring Excel files
• do not share adapter with physical OS
• enable Jumbo Frames for CSV, iSCSI and LM networks
22. STORAGE (1)
• single LUN per VM?
– no need… CSVs work just fine
• SAN or SOFS/SMB3?
– if there is SAN in your environment (and it’s supported for Hyper-V), use it
– if you want a „cheaper” solution (and there is no reason against it), try using
SOFS/SMB3
– or a combo (SOFS for SMB3 on SAN LUNs)?
• use 4K native disks and 64K allocation unit size for drives hosting VHD(X)
• avoid vIDE for data disks (Generation 1 VMs)
• use virtual HBAs only if needed
• use Storage QoS if you need it
23. STORAGE (2)
• should I use the „witness” disk in cluster? Yes.
• install MPIO, latest DSMs (usually requires restart) and drivers
• rename the CSV „mount point” (C:ClusterStorageVolume1)”
• put VHD(X)s on CSV into folders!
– access-related errors if there are VHD(X)s in a CSV root!
• NTFS or ReFS?
– NTFS – 64k for VHD(X)s for optimal performance
– ReFS – with Windows Server 2016
• measure IOPS
– http://blog.workinghardinit.work/2014/01/08/how-to-measure-iops-
of-a-virtual-machine-with-resource-metering-and-measurevm/
24. VIRTUAL DISKS
• use/convert to VHDX
• fixed/dynamic/differencing/pass-through?
– VHDX – dynamic
– VHD – fixed-size
• don’t forget to ensure enough free space for dynamic disks!
– the same goes to using thin-provisioned LUNs!
• one-liner:
– Convert-VHD -Path D:VM01.vhd -DestinationPath D:VM01.vhdx -VHDType Dynamic
• don’t use pass-through disks (no point anymore – dynamic disks are
as performant as it gets, and their mobility/manageability is not
questionable
• convert pass-through disk to VHDX
– New-VHD -Path "D:VMSConverted.vhdx" -Dynamic –SourceDisk 5
25. CLUSTER SHARED VOLUMES (1)
• how many and how big?
– minimum of 2 (to utilize two different storage controllers, …)
– < 8 cluster nodes = 1 CSV per 1 node
– > 8 cluster nodes = 1 CSV per 2-4 nodes
• how many VMs per CSV?
– up to 50 (server VMs)
– up to 100 (client VMs in VDI environment)
• IOPS are all that matters!
• enable CSV cache to improve read operations
– (Get-Cluster).BlockCacheSize = 2048
• metadata changes can only occur on the CSV coordinator (owner node)
• please… rename CSVs before you use them!
– C:ClusterStorageVolume1 and C:ClusterStorageVolume2 are great
names, but…
26. CLUSTER SHARED VOLUMES (2)
• set the automatic stop action to anything other than „Save”
• fill up your CSVs with a maximum of 75 percent of its capacity to allow
growth of all these files
• how much space is available on your CSVs?
– http://www.powershellmagazine.com/2014/02/28/reporting-cluster-
shared-volume-csv-disk-space-utilization/
• encrypt CSV with BitLocker – performance impact of 20-30%
• network adapters used for CSVs should have the Client for Microsoft
Networks and File and Printer Sharing for Microsoft Networks enabled
– activate Microsoft Failover Cluster Virtual Adapter Performance Filter (not if
you are using Guest Cluster in your virtual machine – then it should be
disabled on the host level)
27. LIVE MIGRATION (1)
• don't forget to set the live migration network and options
• use Kerberos constrained delegation instead of CredSSP
(need to log on to the server to start live migration)
• enabling KCD for two node cluster is quite easy ():
– HYP1 delegates credentials to HYP2
• $hvhost = "HYP2"
• $domain = "sun.tklabs.eu"
• Get-ADComputer HYP1 | Set-ADObject -Add @{"msDS-
AllowedToDelegateTo"="Microsoft Virtual System Migration
Service/$hvhost.$domain", "cifs/$hvhost.$domain","Microsoft Virtual System
Migration Service/$hvhost", "cifs/$hvhost"}
28. LIVE MIGRATION (2)
– HYP2 delegates credentials to HYP1
• $hvhost = "HYP1"
• $domain = "sun.tklabs.eu"
• Get-ADComputer HYP2 | Set-ADObject -Add @{"msDS-
AllowedToDelegateTo"="Microsoft Virtual System Migration
Service/$hvhost.$domain", "cifs/$hvhost.$domain","Microsoft
Virtual System Migration Service/$hvhost", "cifs/$hvhost"}
• enable live migration
– Enable-VMMigration -Computername HYP1, HYP2
– Set-VMHost -Computername HYP1, HYP2 -
VirtualMachineMigrationAuthenticationType Kerberos
• yes, it can be done through GUI as well!
29. GUEST CLUSTERING
• use Anti-Affinity rules to make sure nodes don’t end up on the
same physical host
– either VMM or PowerShell
• not available through Failover Clustering console!
• (Get-ClusterGroup KULEN1).AntiAffinityClassNames = "GuestClusterKULEN"
• (Get-ClusterGroup KULEN2).AntiAffinityClassNames = "GuestClusterKULEN"
• Get-ClusterGroup KULEN1 | fl Anti*
• change default failover-triggering heartbeat times (to allow live migrations on
host, without failover actions in guest – default is 10 seconds)
– (Get-Cluster).CrossSubnetThreshold = 25
– (Get-Cluster).SameSubnetThreshold = 25
30. CHECKPOINTS
• Windows Server 2012 R2
– don’t use checkpoints (snapshots) in production
• Windows Server 2016
– use Production checkpoints
• tips:
– use them as rarely as possible
– checkpoints are no substitution for backups
– delete checkpoints as soon as possible
– don’t delete a checkpoint file on the file level!
• console/PowerShell is the only way to go
– use them with caution on domain controllers and database servers
31. BACKUP AND DISASTER RECOVERY
• backup
– poor man’s backup solution – Windows Server Backup
– other solutions like SC DPM, Veeam, Altaro, …
• no real need to backup Hyper-V hosts
– except maybe for faster recovery, but…
• use Hyper-V Replica if you need disaster recovery
– it’s included anyway
– exclude Paging file disks from replication
32. PERFORMANCE (PERFMON.EXE) (1)
• storage
– it’s all about the IOPS!
– counters:
• Logical Disk(*)Avg. Disk sec/Read
• Logical Disk(*)Avg. Disk sec/Write
– thresholds:
• up to 15 ms should be OK
• 15-25 ms may cause negative impact on workloads
• > 25 ms will cause negative impact on workloads
33. PERFORMANCE (PERFMON.EXE) (2)
• memory
– there has to be enough memory available inside a VM (or a Hyper-V host)!
– counters:
• MemoryAvailable Mbytes
– RAM available for running the active processes
– 15% (or more) is OK
• MemoryPages/sec
– how often the disk is accessed to resolve hard page faults
– < 500 pages per second is OK
– > 500 pages per second – machine just needs more RAM (don’t be cheap!)
34. PERFORMANCE (PERFMON.EXE) (3)
• network
– counters
• Network Interface(*)Bytes Total/sec
– shows current network utilization
– 20% (or more) free is OK
• Network Interface(*)Output Queue Length
– shows latency in sending network packets (threads that wait on the NIC)
– 0 is OK
– 1 or more is a sign of degraded network performance
• Hyper-V Virtual Network Adapter(*)Bytes/sec
– shows which virtual network adapters are consuming the most bandwidth
35. PERFORMANCE (PERFMON.EXE) (4)
• processor
– counters
• Processor(*)% Processor Time
– overall CPU utilization (at host level)
– < 80% is always OK ()
• Hyper-V Hypervisor Logical Processor(_Total)% Total Run Time
– at host level, but to evaluate guest utilization
• Hyper-V Hypervisor Root Virtual Processor% Total Run Time
– CPU of the root partition
• Hyper-V Hypervisor Virtual Processor(_Total)% Total Run Time
– total time of the virtual processors
• Hyper-V Hypervisor Virtual Processor(*)%Guest Run Time
– CPU of the guest partitions
– always measure the CPU usage of the physical system by using the Hyper-V Hypervisor
Processor performance counters
36. PAL IS YOUR NEW (BEST) PAL!
• PAL (a.k.a. Performance Analysis of Logs Tool)
– reads a performance monitor counter logs and analyzes them using
known thresholds
– for Hyper-V, SQL, IIS, Exchange, SharePoint, …
– you can get it at https://pal.codeplex.com/
– free!
– (P.S. use en-US regional formatting
– (P.P.S. Set-Culture en-US )
– DEMO
37. A FEW MORE THINGS...
• vCPU allocation (Microsoft recommendation)
– no more than 8 virtual CPUs per physical CPU core for server workloads
– no more than 12 virtual CPUs per physical CPU core for VDI workloads
• be careful with thin-provisioned disks (running out of storage space), dynamic memory
(don’t use it for SQL or Exchange)
• Generation 1 VMs – create bigger VHD(X) and smaller partition
– you don’t need to shutdown VM to resize
• don’t forget common tools like defrag and chkdsk
• set up a naming convention (and stick to it )
• cluster log is your friend… when things go bad (increase sensitivity logging level)
– (Get-Cluster).ClusterLogLevel = 5
– Get-ClusterLog -Destination C:Logs -UseLocalTime
• DOCUMENT EVERYTHING.