I really have not seen storage virtualization driving storage area network (SAN) deployment. For example, if you...
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look at IBM's SVC software, IBM estimates 2,100 plus installs (and growing), and those installs do involve a SAN of some type. What's not clear is whether a SAN was installed to support the SVC installs, or SVC was just added to address a particular issue. SANs are about connectivity -- not intelligence. Most SAN adoptions have been to simplify connectivity and improve storage sharing, so storage virtualization has been more of a complementary technology rather than a driving technology. [For more relevant product details, see the All-In-One Buying Guide to Storage Virtualization.]
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