August 2018
Intermediate to advanced
598 pages
13h 22m
English
Content preview from Data Center Virtualization Certification: VCP6.5-DCV Exam Guide
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Understanding network DRS
Virtual network-aware DRS is a new feature introduced in vSphere 6.5, where DRS now also considers network utilization when it generates migration recommendations. If a host has Tx and Rx rate utilization of connected physical uplinks greater than 80%, the virtual machine won't be placed on that host.
Network utilization is an additional check to evaluate whether a specific host is suitable for the VM and has sufficient network resources available. This additional input improves DRS placement decisions, which results in better VM performance.
The initial placement is performed by DRS in two stages:
- ESXi host members of the cluster are ranked based on cluster constraints and compute resource availability
- The host ...
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