Hyper-V – AgileOps

Get Started with VMware New Certifications VCA – DCV, Cloud and Workforce Mobility

Ibrahim Quraishi — Mon, 25 Nov 2013 22:44:10 +0000

VMware Crtified Associate and they have restructured the Certifications and renamed the VCP to VMware Certified Professional – Data Center Virtulization ( VCP -DCV ) The new VCA certifications are: VCA – DVC VCA – Cloud VCA – Workforce Mobility You can find more information Certification Roadmap: Source: https://mylearn.vmware.com/lcms/web/portals/certification/roadmaps/Cert_Datasheet_Flyer%208.16.13.pdf https://mylearn.vmware.com/mgrReg/plan.cfm?plan=32567&ui=www_cert I recently started preparing for VCP -Cloud and I have recently taken the VCA – Cloud and passed it. The option for all the VCP5 Certified Professionals is you can directly take VCA -IAAS which has the prerequisite of VCP 5. And for those who are not a VCP 5 has to take the VCP -Cloud exam however they will need to take the 5 days training from VMware Certified Partners or VMware directly. Also click the above link Get Started with VMware New Certifications for Free !! here: https://quraishi.wordpress.com/get-started-with-vmware-new-certifications-for-free/

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Virtualization Technologies used today and its benefits!

Ibrahim Quraishi — Thu, 14 Jun 2012 02:18:51 +0000

Reduce power and space requirement in data centres

Fast application and service provisioning

Improved manageability

Business continuity

When these factors are measured by a survey taken by f5 few years a go we got the following results. This clearly explains that the Businesses are focused to do server consolidation and reduction of power and space requirement which is the driving factors even today. The types of virtualization do we currently have ? as discussed this on my previous post, I am going to compare them today. According to surveys taken recently we have the following stats. This clearly explains us that most of the Virtualization technologies are been used today, however still the most popular one is Server virtualization. Never the less this is taken on a different level today to get the Desktop virtualization for the end users companies like Citrix and VMware have got a lot of powerful products for this.

Finally I would like to discuss the products which are used in the industry and to what extent. The most widely used product is VMware ESX and then comes Microsoft Hyper-V. As we can see from the table below.

I will be disscussing VMware and Hyper-V Technologies and theire benifites over one and outher in detail in my next post.

Source: https://www.f5.com/pdf/reports/enterprise-virtualization.pd https://www.vmworld.com/community/conferences/2008/ https://communities.vmware.com/community/vmug/us_northeast/boston httpss://2008.msteched.com/itpro/public/precons.aspx www.microsoft.com/virtualization/default.mspx

www.f5.com/solutions/resources/white-papers/

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Consolidating IT Infrastructure by Virtualization

Ibrahim Quraishi — Tue, 12 Jun 2012 05:02:48 +0000

Full Virtualization

Hypervisor contains the Virtual Machine Monitor (VMM)
Guest OS unchanged, Host can be any kind of hardware
Guest uses generic device drivers

Hardware Virtualization (a.k.a. Hardware Assisted)

VMM moved to hardware
Requires VT hardware
Guest OS unchanged, uses generic device drivers

Paravirtualization

Guest OS requires paravirtualized drivers
Thin layer for hypervisor, guest has access to Host hardware
Host any kind of hardware

in gernal we have two famous methods of Virtualizaiton : Hosted Virtualization ( installing the virtualization software VMM on a host server ie. Windows Server 2008 or Linux etc. Bare Metal Virtualization ( installing the virtualization software on physical machine directly which gives super performance eg. VMware vSphear) aka Hardware emulation Further we can classify the virtualization in three important categories Storage Virtualization: This is achieved by consolidating all the storage in a single location which makes the network admins to easily manage the storage resource. Network Virtualization This is accomplished by combining all the network bandwidth and then splitting it into channels for users. this allows the Administrator allow resources as and when they require. This allows each user to access all of the network resources, which can be files and folders on the computer, printers or hard drives etc. This streamlined approach makes the life of the network administrator much easier. Server Virtualization This is the most popular virtualization method used today to consolidate multiple virtual machines on a single high spec physical server, This will save processing power , space in DC and more importantly cost.

Virtualization of old physical servers to a virtual server also known as P2V (Physical to Virtual)
Setup new servers only on virtual infrastructure (unless there is a mandatory requirement of having a physical server )

Although there are a lot of products available in the market to achieve this the ones that are hugely popular is VMware and Hyper –V. both of the software does the job although there is always a big debate on which is better one. I have always been a big supporter of VMware products, with their new range of products complementing one and other. I will dig these two deeper on my next post … Thanks for reading.

Sources : VMware: https://www.vmware.com/files/pdf/VMware_paravirtualization.pdf

Dell: https://www.dell.com/downloads/global/power/ps3q05-20050191-Abels.pdf

Microsoft: https://www.microsoft.com/en-us/server-cloud/hyper-v-server/benefits.aspx]]>