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Guest operating system’s memory usage might be overestimated on VMware ESX 4
After installing or upgrading to VMware ESX 4, the Guest operating system’s memory usage might be overestimated on Intel systems that support EPT technology or AMD systems that support RVI technology. This issue might cause the memory alarms in vCenter to go off spuriously even if the guest is not actively accessing a lot of…
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Running vCenter in a virtual machine within a distributed switch is not supported
Update: This post has been updated on Feb 23, 2011 as I have been kicked right and left by my colleagues at VMware, as this post used to be titled “Running vCenter in a virtual machine within a distributed switch is not supported”, where its actually supported. Unfortunately, this info was communicated to me by…
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Are Microsoft really better at virtualizing their own products?
As our company is a partner of VMware, Citrix, & Microsoft. Yop, you heard it all of them at one shop. I get to visit many customers & try to help them find the best virtualization product for their enviornment. Lately, I have noticed a tendancy of many customers saying, “I will go Hyper-V as…
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VirtualizationTeam New Design
We have finally just finished the face left to our blog. We hope you like it better than the earlier design. Below are few of the improvement in the design: 1- Faster Load time. 2- Better search functionality. 3- Compatible with more web browsers. 4- Eliminated the html errors we had with the earlier design.…
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Configured DSN is pointing to an unsupported ODBC driver error while upgrading to vCenter 4.0
One of the errors my customers repeatly complain about while upgrading to vCenter Server 4 or even when trying to install it from scratch is the following error: “The DSN is pointing to an unsupported ODBC driver. Please re-configure your DSN to use one of the supported drivers.” If you face this problem the first…
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Be Smart & Save huge on Microsoft Licensing with Virtualization
As a start don’t let the title fool you this is not related only to Microsoft virtualization, but to every virtualization platform out there. Don’t let vendors mislead you as the saving can be higher on Microsoft Licenses with non Microsoft Hyper-visor like VMware where you can put more virtual machines on the same hardware…
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Tolly Common Test Plan for Virtual Server Performance
I have been contacted by Kevin Tolly the founder of http://CommonTestPlan.org to evaluate their Virtual Server Performance Test Plan & provide suggestions in that regard about two weeks ago. Kevin & his team were kind enough to provide me with a one year license to their Virtual Server Performance Test Plan Document for my own…
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How do I choose the right virtualization solution?
Being on the vendor side & visiting many customers a day who is looking to find out which virtualization solution fit them best has made me used to the question: “Which virtualization solution is the right one for me?” I wish there was an easy answer, where I can say this solution or that solution…
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Red Hat Enterprise Virtualization RHEV-M Demo
It seems Red Had is shifting their focus from Xen as their virtualization platform to KVM. Their new Red Hat Enterprise Virtualizaiton solution is based on KVM. It seems that Red Hat Enterprise Virtualizaiton Solution, when combined with their new management tool called RHEV-M will offer many advanced features. Red Hat Enterprise Virtualization Solution seems…
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MY VMWare Certified Professional on vSphere 4 VCP-410 Tips
I know I have been pushing back my vSphere exam for a while due to the amount of projects I am working on this year. I have finally passed my exam two days back with a blazing score of 494(haha thought it would be quite lower than this, but I guess the elimination process of…
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Another Secret reason why you should purchase VMware Storage VMotion
As most of you already know VMware Storage VMotion is the ability to live migrate a virtual machine from one storage to another without any downtime. The usage most IT Professional relate to VMware Storage VMotion is the following: The ability to move your virtual machines from a storage or datastore to another for maintenance…
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VMware ESX 4 Reclaiming Thin Provisioned disk Unused Space
Disk Thin Provisioning & its ease of use in VMware vSphere has been one of the most used features. Although Thin provisioning has allowed customers to avoid allocating space upfront & saved them tons of space, it does not unallocate space when files are deleted from the Virtual Machine, this is due to the way…
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Veeam Backup & Replication 4.1 with full support for replication to ESXi hosts!
Today I have received an e-mail from Veeam, announcing that Veeam Backup & Replication 4.1 is fully supporting VMware ESXi including the replication to VMware ESXi host as a target. Below is the body of Veeam announcement e-mail: ======= Veeam Announcement ========= Veeam proudly announces the upcoming release of Veeam Backup & Replication 4.1 with…
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IF I was VMware CEO, ……
Don’t get me wrong. I am happy with the current VMware CEO as well the VMware team as over all. My post is more of a message to the VMware Team & specially the CEO. I believe this below tip can help VMware crush the competition, though they have to study it carefully as it…
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VMware vSphere Virtual Machine still show old datastore after storage vMotion
Before I start with the article, I have to point out this is not a VMware bug. Its the VMware admins doing what they are not suppose to do. VMware ESX 3 & VMware ESX 4 Administration Guides mention clearly that you should not VMotion or Storage vMotion a Virtual machine before disconnecting it from…