Category Archive: VMware

Nov 09 2015

Adding a Raw Device Mapping (RDM) to a Virtual Machine

As you might know, in a VMware virtual machine besides of the traditional virtual disk (VMDK) you can also add a so called RAW Device Mapping (RDM). This type of disk is used in special situations where SAN snapshots are required, VMFS virtual disk(s) become to large, applications that need to make direct calls to …

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Jun 22 2015

Installing and configuring VMware vSphere Data Protection (VDP)

You might think that your machines are safe and that you have nothing to worry about once you virtualize your infrastructure, but that’s not true. Virtual machines need backups, the same as physical machines do. This is not necessarily because of a host crash or any other hardware problem,

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Apr 14 2015

Installing and Configuring VMware vSphere 5.x Syslog Collector

Starting with vCenter 5.0 VMware introduced the vSphere Syslog Collector tool. This was made in order for admins to centralize their ESXi systems logs in one place, since these logs by default sit locally on the hypervisor system partition or on a datastore. You could use

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Jan 13 2015

Deploying and Configuring VMware vCenter Server Appliance 5.x

VMware vCenter Server Appliance or vCSA for short, has greatly improved compared to previous versions, and in version 5.5 which I’ll discuss in this article some most wanted limitations were lifted. Now it can support up to 100 vSphere/ESXi hosts and 3.000 virtual machines with the integrated vPostgress database, which is more than enough for …

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Jan 06 2015

Add a vCenter Single Sign On (SSO) Active Directory (AD) Identity Source

Starting with version 5.1 VMware introduced a new service in the vCenter Infrastructure suite called vCenter Single Sign On (SSO). The addition of this new service greatly improved the security of VMware’s cloud services by allowing them to communicate to each other trough a secure token exchange mechanism. The other benefit is that users will …

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Dec 03 2014

How to add drivers to a VMware ESXi 5.x ISO

How many times you needed to inject drivers in your ESXi image because they are missing for your specific component? A lot of times I bet, especially if you have new hardware or servers build using custom components in order to make a home lab. Usually the storage and the network drivers are the problem …

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Oct 29 2014

Configure Syslog on ESXi 5.x Hosts

No matter how small or how big your VMware infrastructure is, you still want to know what’s happening on your hosts, and most of the time for security reasons. You also need to be alerted in case something goes wrong or might go wrong, who’s logging in and logging out etc. All those actions I …

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Jul 13 2014

Creating and Using VMware Guest Customization Specification

I know many of you deploy a lot of  VMs in you VMware Infrastructure. Been there, and still doing that. I also know that most of you are using PowerCLI to automate the deployments to make time for some reading; but there are things that need to be done in the guest OS during the …

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Dec 24 2013

Creating a persistent scratch location on ESXi

When you install your ESXi host(s) on a flash drive, which is pretty common in an enterprise environment you will get a message on the Summary tab in your vSphere client or Web client interface “System logs on <ESXi host> are stored on non-persistent storage“.

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Dec 01 2013

Configuring VMware High Availability (VMHA)

OK, you created your VMware cluster but the VM’s are not protected from hosts failure, and by not protected I mean your VM’s will not be automatically migrated to a working ESXi host and automatically powered on. They will be left in a powered off and not available state. The second bad thing about this …

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