An administrator is attempting to migrate a large Hadoop virtual machine using vMotion. The administrator notices a delay when the machine is quiesced. The Hadoop virtual machine is processing many…

Using multiple NICs for the vMotion vmkernel port enables NIC teaming and aggregates available bandwidth, allowing the large volume of in-flight memory pages from the high-transaction Hadoop VM to be transferred faster and shortening the quiesce (stun) phase.

A 10Gbps NIC provides up to 10x the throughput of a 1Gbps NIC, which directly reduces the time required to transfer memory state during vMotion and minimizes the duration of the quiesce phase for a VM with a high memory write rate.

The management network handles vCenter-to-host control traffic and has no role in transferring vMotion memory data, so adding a management network does not improve vMotion throughput.

Fault Tolerance prevents vMotion entirely rather than causing a delay - if FT were enabled, the migration attempt described in the question would not be possible at all, not merely slow.