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Broadcom-VMware

5V0-21.20 · Question #40

An All-Flash vSAN cluster has 4-nodes with this disk group composition on each host: - 1 x 800 GB SAS SSD - 6 x 3.84 TB SATA SSD An administrator observes that in an All-Flash cluster, the Write…

The correct answer is B. Add a second cache device to the same disk group to increase the caching size. See the full explanation below for the reasoning.

Question

An All-Flash vSAN cluster has 4-nodes with this disk group composition on each host:

  • 1 x 800 GB SAS SSD
  • 6 x 3.84 TB SATA SSD

An administrator observes that in an All-Flash cluster, the Write Buffer Free Percentage is consistently low. As a result there is increased latency experienced by the workloads. Which remediation steps will resolve this issue?

Options

  • AAdd a second disk group with a new cache device and distribute the capacity disks equally.
  • BAdd a second cache device to the same disk group to increase the caching size.
  • CReplace the existing cache device with a larger cache device.
  • DModify advanced vSAN configuration parameters to utilize the complete 800 GB for caching.

How the community answered

(30 responses)
  • A
    10% (3)
  • B
    80% (24)
  • C
    7% (2)
  • D
    3% (1)

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