Skip to main content

Storage Virtualization: Q&As

What does storage virtualisation do for me?

Storage virtualisation is a technique used throughout IT environments to simplify what tends to be a relatively complex underlying infrastructure.

The idea is to separate the logical presentation of a resource from its physical implementation — presenting a simplified, seamless virtual view
of the resource to applications and administrators.

Where should storage virtualisation live?

The software that virtualises storage can be run in a variety of locations.
Generally, the three most common locations are on a server, on a storage
device or in the storage network.

The storage network is receiving the most focus because it has the advantage of being able to support any connected server platform and any connected
storage device. The next question that usually follows is...

Should I choose an in-band or out of band solution?

Some vendors want to make a big deal about the technical path they took to implement virtualisation. The more important question is “as a customer, what results do you expect to achieve from virtualisation?”

The answer will guide you to an implementation. Today, only in-band implementations have the ability to deliver this full set of virtualisation value. The smart thing to do is first decide what results you are looking for and then evaluate the solution based on how well they match your goals.

How can I avoid vendor lock-in?

The best way to avoid vendor lockin is to virtualise the complete disk experience. If a vendor can get you to integrate your disaster recovery procedures to his proprietary replication services, or get you to load his proprietary multi-path device driver on all of your servers, or train all your
administrators on his proprietary management interface, he knows your
switching costs will be high — and you are locked in.

If, however, you choose to virtualise your complete disk experience, you give yourself complete flexibility of choice in what underlying disk hardware you choose. And that flexibility will often result in lower
overall costs.


Popular posts from this blog

DeepLearningTrucker Part 1

Avastu Blog is migrating to; 1st Jan 2009 live


I will send out emails personally to those who are using my link(s) on their sites.

Thanks much for your co-operation and hope you enjoy the new site and its cool new features :-)

Not like the site is unlive or something..on the contrary, its beginning to get a lot of attention already. Well most of the work is done, you don't have to worry about anything though:

What won't change

Links/Referrals: I will be redirecting the links (all links which you may have cross-posted) to - so you don't have to do anything in all your posts and links. Although, I would urge however that you do change the permalinks, especially on your blogs etc yourselfThis blog is not going away anywhere but within a few months, I will consider discontinuing its usage. I won't obviously do …

Cloud Security: Eliminate humans from the "Information Supply Chain on the Web"

My upcoming article, part - 3 data center predictions for 2009, has a slideshot talking about the transition from the current age to the cloud computing age to eventually the ideation age- the age where you will have clouds that will emote but they will have no internal employees.

Biggest management disasters occur because internal folks are making a mess of the playground.

Om's blog is carrying an article about Cloud security and it is rather direct but also makes a lot of sense:

I don’t believe that clouds themselves will cause the security breaches and data theft they anticipate; in many ways, clouds will result in better security. Here’s why: Fewer humans –Most computer breaches are the result of human error; only 20-40 percent stem from technical malfunctions. Cloud operators that want to be profitable take humans out of the loop whenever possible.Better tools – Clouds can afford high-end data protection and security monitoring tools, as well as the experts to run them. I trust…