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There are numerous ways to embed virtualization into your storage infrastructure. Here are the pros and cons of the various approaches.
Where to embed virtualization and when to use it depends on the size of the infrastructure, the type of apps running in it, and the levels of control and visibility required by admins.
Today, storage managers need to balance the benefits of virtualization against the complexity it brings. We'll look at seven of the largest storage virtualization providers in North America. Each vendor offers storage virtualization at one or more layers in the storage infrastructure, as well as complementary storage resource management (SRM) software that provides visibility, reporting and management across the multiple layers of the virtual storage infrastructure (see "
|Storage virtualization and SRM software, (PDF)" and "Virtualization guidelines,"next page).
There's no right answer regarding the best place to implement virtualization, or at what layer and how much to virtualize. Basically, users have a choice of three approaches to address their combined storage virtualization and SRM software needs:
This was first published in January 2008