Users asking VMware for storage live migration

Posted by virtualization.info Staff   |   Wednesday, May 17th, 2006   |  

Quoting from a very interesting SearchStorage article:

VMware Inc. is all the rage among users at the Storage Decisions conference, as evidenced by the hundreds who packed a session on VMware data recovery Tuesday afternoon. However some users said they hope VMware’s migration tool, VMotion, will be enhanced soon — specifically to support dynamic migration of data between storage systems.

“When I’m upgrading those arrays, there’s no way for me to use VMotion to point VMware guests at the new storage box without turning them off,” he said.

He’s not the only user confronting this issue. “For now, we think VMware is great for server consolidation, but it really only works locally,” said Chris Macsurak, storage administrator for MWH Global.

Users said they were waiting to see if VMware version 3.0, due to be released at the end of this quarter, would contain the capability.

VMware spokesperson Amber Rowland declined to comment on what would specifically be supported in version 3.0, slated for release at the end of this quarter, but said, “This is an interesting direction that VMotion can go. It doesn’t support [live data migration] today, but a cold migration can be used to move a virtual machine from system to system, and it only takes a few minutes.”

Jancewicz said he is considering a two-step process of his own: installing IBM’s Storage Volume Controller (SVC) between his servers and back-end storage so that the VMware servers never know the difference between back ends. VMware’s parent company, EMC Corp., also offers a storage virtualization product, called InVista, but Jancewicz said he felt SVC is more mature, and that he generally prefers IBM.

Read the whole article at source.



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