A vSAN administrator needs to build a vSAN ESA cluster with RAID-5/FTT 1 adaptive storage policy. What is the absolute minimum number of hosts that need to be part of that vSAN ESA cluster?

The correct answer is D. 3 hosts3. Option #2: FTT=1 using RAID-5 in a 2+1 scheme As shown in Figure 3, this writes the data in a VM as a stripe consisting of 2 data bits and 1 parity bit, across a minimum of 3 hosts. It consumes 1.5x the capacity of the primary data, delivering guaranteed space efficiency of…

Planning and Designing VMware vSAN Implementations

Question

Options

A6 hosts
B4 hosts
C5 hosts
D3 hosts3

How the community answered

(18 responses)

A
17% (3)
B
6% (1)
C
6% (1)
D
72% (13)

Explanation

Option #2: FTT=1 using RAID-5 in a 2+1 scheme As shown in Figure 3, this writes the data in a VM as a stripe consisting of 2 data bits and 1 parity bit, across a minimum of 3 hosts. It consumes 1.5x the capacity of the primary data, delivering guaranteed space efficiency of resilient data across just 3 hosts https://core.vmware.com/blog/adaptive-raid-5-erasure-coding-express-storage-architecture-vsan-

Topics

#vSAN ESA#RAID-5 adaptive#FTT=1 minimum hosts#ESA host requirements

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