Frequently asked questions - Storage VirtualizationStorage virtualization implications <<previous|next>> :How does storage capacity planning and management play into storage virtualization?
Where should storage virtualization be done -- Host, network, array?
The only example of controller-based storage virtualization is from Hitachi Data Systems (HDS). There are pros and cons. Virtualization is being done inside the storage system (e.g., an HDS TagmaStore), so a customer committed to a homogeneous HDS environment may see that as a great advantage. Just remember that all storage traffic, from an HDS or non-HDS box, has to flow through the virtualized storage array controller.
Check out the entire Storage Virtualization FAQ guide.
22 Aug 2007