Exam 5V0-21.19 topic 1 question 59 discussion

Actual exam question from VMware's 5V0-21.19

Question #: 59
Topic #: 1

An administrator is implementing deduplication and compression on a vSAN all-flash cluster.
-There are 4 nodes in the vSAN cluster.
-Existing VMs use a RAID-5 storage policy
How can deduplication and compression be enabled while permitting the VMs to remain operational?

A. Enable vSAN datastore encryption.
B. Use explicit fault domains.
C. Use the Allow Reduced Redundancy option.
D. Enable TRIM/UNMAP.

Show Suggested Answer

Suggested Answer: C 🗳️

by LFC at May 17, 2020, 3:15 p.m.

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Lazylinux

3 years, 5 months ago

Selected Answer: C

Agreed with masses

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diegof1

4 years, 4 months ago

C is the corret answer. In certain environments, the vSAN cluster might not have enough resources for the disk group to be fully evacuated. Examples environments include: • A three-node cluster with no resources to evacuate the replica or witness while maintaining full protection • A four-node cluster with RAID-5 objects already deployed In these cases, deduplication and compression can be enabled using the Allow Reduced Redundancy option. This option keeps the VMs running, but the VMs might be unable to tolerate the full level of failures defined in the VM storage policy. In certain cases, you might need to reduce the level of protection for your VMs. When you enable deduplication and compression in certain cases, you might need to reduce the level of protection for your VMs. Taken from vSAN 6.7 Deploy and Manage Lecture Manual - Enabling Deduplication and Compression section

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bnic

4 years, 5 months ago

agreed

upvoted 1 times

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adelbelkis2

5 years ago

It's C https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C.html#GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C

upvoted 1 times

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LCOJ

5 years ago

Correct answer is C: as per infomation below: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C.html#GUID-125B2B04-FBB9-43AB-8AF9-E7179734BC7C

upvoted 1 times

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