What is the purpose of host rebuild reserve in vSAN?

The correct answer is B. Reserves space in case of single host failure. The "Host Rebuild Reserve" (HRR) setting accounts for the capacity needed to absorb a sustained failure of a single host in a vSAN cluster - to support an N+1 cluster design strategy. https://core.vmware.com/blog/understanding-reserved-capacity-concepts…

VMware vSAN Platform and Architecture

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AReserves space for internal operations
BReserves space in case of single host failure
CStores vSphere HA heartbeats
DAllocates capacity for vCLS

How the community answered

(56 responses)

A
2% (1)
B
89% (50)
C
4% (2)
D
5% (3)

Explanation

The "Host Rebuild Reserve" (HRR) setting accounts for the capacity needed to absorb a sustained failure of a single host in a vSAN cluster - to support an N+1 cluster design strategy. https://core.vmware.com/blog/understanding-reserved-capacity-concepts- vsan#:~:text=The%20%22Host%20Rebuild%20Reserve%22%20(,N%2B1%20cluster%20design

Topics

#host rebuild reserve#capacity reservation#host failure#slack space

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