Issues to Consider Before Moving VMs Over the WAN

By ServerWatch Staff (Send Email)
Posted May 25, 2010

One compelling reasons why organizations implement server virtualization is the ability to move virtual machines between physical servers. This Network World article, however, suggests that moving VMs between physical machines may not work if the VMs have to traverse the WAN.

Moving virtual machines between physical systems may not work over the WAN.

"However, according to Cisco, VMware and NetApp if you want to move VMs over the WAN you need at least 622Mbps of bandwidth.

"While that is a lot of capacity, that is not our primary concern relative to transmitting VMs over a WAN. Our primary concern is that those vendors also state that the maximum round-trip latency between the source and destination VMware ESX servers cannot exceed 5 milliseconds."

Read the Full Story at Network World

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