Showing posts with label Techies Lounge. Show all posts
Showing posts with label Techies Lounge. Show all posts

Tuesday, October 21, 2008

R U Virtualized..??

If you thought that "Existence" is THE THING, then you might be little outdated according to some existing living beings with brains. With computer hardware and software industry booming and breaking all limits, virtualization has become the next buzz word. Just imagine on the same hardware you can have any operating system you want to run without uninstalling/installing operating software every time. Its like you have different machines on the same hardware and you can power up anyone you want or you can even power up more than one machine depending on the hardware you have.

One of the companies making hay while the concept of virtualization shines is Vmware. They are closely followed by Micorosoft. I personally have had a chance to work on Vmware products, namely Vmware Workstation, Vmware ESX Server, Vmware Virtual Center and Vmware Lab Manager. I am not into lab administration but some how I have this love for computer hardware and labs.

I will describe how to resolve common errors which Vmware users face but at a later point of the time. First for the benift of those who don't know much about this technology, let me explain you in a nut shell what different products do.

Vmware workstation: You can install this software on your personal desktop or laptop which has some or the other operating system already installed, say Windows. Now using vmware workstation you can creat a virtual machine which will live on your host operating system (windows). In this virtual machine, you can have any other OS you want, for example linux. This Virtual machine works as a seprate machine in it self. You decide how much hardware resources you want to allocate to this virtual machine. This is a very good way for people who seldom require working on two different operating systems.

Vmware ESX server: This is a better and much advanced version of Vmware workstation. This is mainly usefull for organizations and not much for individual users. Unlike Vmware workstation, VMware ESX server does not need any host operating system. it installs directly on the hardware. Once the ESX server is installed, you can create "n" number of Virtual machines on it, with different operating systems of you choice. The number of virtual machines will but off course depend on your hardware and the performance you want from the virtual machine. However, it is very easy to increase RAM and CPU allocation in a virtual machine at any point. I have a server with 16 GB RAM, and on that I am hosting more than 12 Virtual machines at any given point of time. All you need is some extra GBs of hard disk.

Vmware Virtual Center and Vmware Lab Manager:
These two software are basically used by lab admins to administer the virtual lab infrastructure. One can do anything and everything from these softwares like creating, deleting, cloning, migrating virtual machines, License management, etc.

The most amazing feature Vmware products offer is the snap shot feature. If you thought that you cannot go back in time, then Vmware has some other thoughts for you. I just love these feature. Once I have my virtual machines with all the softwares and settings I need, I just take a snapshot of the same. After that I can revert to this snapshot any time I want to, even if I get BSOD on my virtual machine. This feature has made me some what fearless at work. I know, that even if I screw up, I can get back to the last stable check point anytime I want to. I just need to keep taking snapshots at regular/correct time.

Another feature I looooooovvveee in Vmware is of cloning. It makes life so simple. You can clone any virtual machine or create templates of virtual machines and then deploy any number of virtual machines you want to from these templates. It hardly takes 15 minutes for me to get a new virtual machine using cloning.

As of now, I will leave you guys to play around with vmware products and get virtualized.  My next post will be for those who use Vmware produts, some do's and don'ts...

Incase you have some specific scenario you want me to talk about then just leave a comment on the post..

Asta lavista..! :)

Wednesday, June 18, 2008

Sometimes Rice can be the ultimate Savior

A sheer coincidence, as I was wondering that it has been quite a while since I myself visited my own blog (I think it would qualify for height of laziness), I came across this interesting article which tells us about a last effort we can make to save our gadgets after they have taken a refreshing bath.

Imagine a $300 Apple Ipod or your fancy mobile phones or PDAs just happen to be too thirsty and decide to take a dip in water. Is it the end of life for them..?? In this case I am quite sure that you will try what ever it takes to revive back the gadget. In case it comes alive, good for you and you can stop reading the article and utilize your time in something else. Just in case you don't care about your drenched gadget (Hard hearted person) then you should also stop wasting your time in reading this article.

Now since you have already reached here, I won't waste much of your time and come to the point directly. Most of us know about Rice as one of the primary edible item. But there is more than this. Rice is known to be a very got absorbent of water. All you need to do is take a bowl of uncooked rice and put your gadget in it. Make sure that you power off the gadget and if possible dis mantel it (i.e. remove the battery, cover, etc). Dis mantel only to the extent from which you can re-assemble it. Leave the gadget inside the bowl, covered with rice for at least 48 hours. You might get lucky, if rice successfully absorbs all the moisture from the gadget.

I am not too sure of the success rate of this method. But again, if there is no other way, then this is at least worth a shot. Piece of advice, keep the electronic gadgets away from moisture and water.