Category Archives: Enterprise Edition

Consolidating IT Infrastructure by Virtualization

As we all know today the main priority is cost savings in every organizations. Keeping this in mind majority of companies are seeking alternative method of saving cost.

One of the way which has become most popular today is consolidating IT infrastructure.   That is by getting rid of old, crapey hardware that has been running for donkeys years!  which keeps braking every fortnight.  Also another concerning factor is space in the Data Center are already filled up, and companies cannot invest in setting up a new data centres, as it will involve huge investments.

So, most of the companys are looking into different types of virtualizations. They are 3 types of virtualizations which are avalable today.

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)

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Memory Support in Windows – Kernal v User Virtual Addressing

Last week I was on a workshop by Microsoft it was for troubleshooting performance issues on Servers.

One of the interesting thing which I came across in the workshop was about the memory management  and the way Windows handles the memory.

By default Windows allocate’s virtual address space to User mode and Kernal mode, Windows assumes that it has 4 gb of virtual address space and it splits it into two half.

ie. 2 GB virtual address space to Kernal and 2 GB virtual address space to User

We can tweak it and  allocate virtual address space to programs 1 GB to the kernel and to executive component.

This is how you can do it:

First un-hide the hidden files and folder make sure you unhidden the Operating system files too.

on the root directory ie C drive you will find boot.ini file take a backup of it on keep it safe.

Edit boot.ini and add \3GB at the end Read the rest of this entry

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