Virtualization Technology News and Information
VMware and NetApp in cahoots?

TechTarget's recently wrote an interesting article about VMware and NetApp possibly working together on some snapshot capability.

Sources close to VMware Inc. and Network Appliance Inc. say that engineers at the two firms are working closely to improve integration between VMware's ESX virtualization platform and NetApp's storage software, specifically its snapshot capabilities.


"They are basically developing a SnapManager for VMware, just like they have for SQL Server or Exchange," said a systems integrator familiar with the companies' roadmaps. Right now, NetApp storage can do a snapshot of virtual machines at the logical unit number (LUN) level, he explained, but "NetApp can't directly quiesce a virtual machine today."

That's not to say that people don't use NetApp snapshot technologies in VMware environments today; they do. But in order to get a consistent copy of a VMware virtual machine, they need to use VMware's own snapshot function, which consumes resources on the host. In contrast, NetApp performs its snapshots on the array, consuming no CPU resources.

Today, integrating the two technologies also requires some VMware scripting prowess. For example, in the NetApp bulletin "Five ways to use NetApp SnapShot copies and VMware VI3," NetApp professional services consultant Mike Slisinger describes one joint customer, Loyola Marymount University, which uses NetApp Snapshots to protect its VMware environment. To do so, "LMU developed its own script to automate backups and is working with NetApp to document its implementation," Slisinger wrote. "This script uses the VMware snapshot capability to quiesce the virtual machine so that a consistent NetApp Snapshot copy can be created."


Read the rest of this article, here, to find out the rest of the story.

Published Friday, July 20, 2007 6:03 AM by David Marshall
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