A vSAN administrator is designing a new all-flash vSAN cluster. The cluster will host read intensive applications. Which factor should be included in the design to improve read performance?
A is the correct answer.
Breaking up the disk groups has the following advantages:
• Redundancy: In example one, a single disk groups can result in a host failure.
• Flexibility: Scale up or scale out are both viable options.
• Performance: More cache devices means more I/O paths.
Taken from vSAN 6.7 Deploy and Manage Lecture Manual - Design: One or Multiple Disk Groups Per Host Section
In all flash mode, there is no read cache and directly read to capacity disks.
So, Adding or Spliting cache don't improve read performance.
I choose B.
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