Category Archive: VMware vCenter

Jan 05 2013

Installing VMware vCenter 5.1 on Windows Server 2008 R2

VMware released the new version of vCenter server which is 5.1, with new improvements and features. I’m not going to write them here to bore you, but if you want to read about what’s new you can read this paper. The vCenter server 5.1 installation in this article will use a remote SQL server for …

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Dec 01 2012

Creating a vSphere 5 Datastore Cluster

This is a great feature in vSphere 5 because you don’t have to keep an eye on the datastores anymore to balance the space for your VMs. Besides this Datastore Clusters minimizes I/O load on those datastores. Long story-short, it provides load balancing mechanisms based on I/O, space capacity, and smart virtual machine placement. To …

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Nov 18 2012

Upgrade from VMFS-3 Datastores to VMFS-5

After you upgraded your vCenter and ESX servers some things are not updated automatically. Besides VMware Tools and machine’s hardware you also need to upgrade the file system to benefit of the new enhancements and features. If you want to upgrade to the newer version of the file system all your hosts must be running …

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Nov 02 2012

Register virtual machines in vCenter inventory

After reinstalling or upgrading one or more of your ESX server(s) you need to register the virtual machines that you preserve in the Datastore back in to the vCenter inventory. If you have just a few machines to register in inventory you can user the graphical interface to do that, but if you have hundreds of …

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Oct 21 2012

Working with VMware vCenter permissions

I wanted to extend my previous post and get in to some deep stuff with permissions in vCenter. It’s an important topic because there are a lot of times that users or some developers need access to their VMs but you don’t want them to mess with the all infrastructure.

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Oct 20 2012

Extending a VMware Virtual Machine disk (VMDK) in ESXi

There are times when the virtual disks of your VMs needs to be increased. The operation is simple and most of the times the server does not need to be shut down; but it depends on the OS running on that VM. And yes…you can add another disk to the VM and create spanned disks, …

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Sep 16 2012

Upgrading from ESX 4.x to ESXi 5.x using VMware Update Manager

Upgrading ESX 4.x hosts to ESXi 5 is a straight forward process, if you have just a few hosts. You just put the ESXi 5 installer CD in the server DVD drive and do an in-place upgrade. This changes if you have a big number of ESX hosts, because you can’t just go to every …

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Aug 19 2012

Configuring iSCSI Multipathing (MPIO) in VMware vSphere 5

If you want your iSCSI storage that is connected to your ESXi hosts to be highly available you will need to configure multipathing. With multipathing if one network component such as a switch, cable, or network adapter fails the traffic is redirected to another path. Besides path failover, multipathing provides load balancing, meaning it will …

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Jul 29 2012

Creating/Configuring iSCSI in VMware vSphere/ESXi 5

Sooner or later we all need to increase the space on our ESX/ESXi host(s). Let’s say you work for a small company that can’t afford a SAN, and right now your ESXi hosts are running on DAS (Direct Attached Storage) which is getting low on space. The best and cheaper option is to use iSCSI …

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Jun 30 2012

Patching ESX/ESXi hosts using VMware Update Manager

Even if you like it or not, ESX/ESXi hosts needs patching, to correct software errors, bugs, security holes or maybe to add some new features present in an update. That’s why patching VMware hosts is vital. In this guide I’ll show you how to patch your ESX/ESXi hosts that are not part of a VMware …

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