Module 11: Scalability Lesson 6: VMware DPM

Question 1

What does DPM do?

Answer 1

Monitors resource requirements and power consumption across a DRS cluster. It consolidates workloads and powers down unused hosts

Question 2

What three power management protocols can DPM use?

Answer 2

Intelligent Platform Management Interface (IPMI)
Hewlett-Packard Integrated Lights-Out (iLO)
Wake on LAN (WOL)

Question 3

In what order of protocols will DPM attempt to use

Answer 3

IMPI
iLO
WOL

Question 4

How are powered off hosts by DPM marked by vCenter?

Answer 4

Standby mode

Question 5

How does DPM wake a host?

Answer 5

By sending a WOL packet over the vMotion network interface

Question 6

How can you test WOL on a host before enabling DPM?

Answer 6

Manually test the “exit standby” procedure with the vSphere Client

Question 7

DPM does power off hosts even if doing so ______ ______ ______.

Answer 7

DPM does power off hosts even if doing so violates failover requirements.

Question 8

What is DVFS?

Answer 8

Dynamic voltage frequency scaling such as AMD PowerNow! and Intel SpeedStep

Question 9

What are the three automation levels for DPM?

Answer 9

Off, Manual (makes recommendations) or Automatic (applies recommendations)