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Vol. 6 No. 4 June 2007

Virtualization and green storage dominate SNW

Virtualization and power/cooling issues dominated the discussions at Storage Networking World (SNW) in April, which was surprising as neither of these topics has bothered storage pros too much until recently. Of the 144 presentations at the show, at least a third mentioned virtualization, in particular VMware. The impact of VMware on storage, and interoperability issues associated with virtual machine (VM) technology, was top of mind for many storage pros. With the flexibility to run VMs anywhere in a grid of servers, organizations are realizing that storage can't be captive to any one server within that grid. Because of the way Fibre Channel (FC) SAN security works by zoning at the physical port level, all VMs on a single physical server have to be in the same zone, which opens up security concerns and contradicts SAN best practices. Several users at the show said they'd implemented masking within the server itself for each VM, by way of the hypervisor's file system, but it was a manual and cumbersome process. "There are ...

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