IBM hasn't even officially announced SAN Volume Controller, but competitors are already disparaging it as suffering from poor performance. "It's like a 0.5 release," says Ken Horner, VP of marketing at DataCore Software Corp. "It's nowhere near the scaleability and support that DataCore supports."
Interestingly, DataCore was an erstwhile partner of IBM, which briefly resold DataCore's Windows-based SANsymphony software. Now the two are confirmed competitors: "It's as if IBM looked at DataCore and said, 'This is cool, but let's go build it on Linux,' " says Horner (see IBM Signs Sneaky DataCore Deal).
IBM spokeswoman Sandra Dressel wouldn't discuss details of SAN Volume Controller, but she claims it won't have the performance issues of out-of-band systems. "With some unique things we've done with the in-band approach, we believe the IBM solution will not have latency issues that out-of-band offerings have, [because] we won't have to borrow CPUs off the application server."
For now, though, IBM's virtualization product remains in the realm of the virtual.
Todd Spangler, US Editor, Byte and Switch
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