Refer to the exhibit. What is the minimum number of data nodes across all sites in a vSAN stretched cluster configuration with the above storage policy?
Answer C is correct: http://www.yellow-bricks.com/2017/05/30/sizing-vsan-stretched-cluster/#:~:text=RAID%2D5%20is%20a%203,%3A%204%2B4%2B1.
Raid 5 is a 3+1 configuration for one site.
C is correct
Sorry error i mean to say C and NOT D as it is asking ONLY for DATA NODES, the witness node only holds the witness components of VMs not any data
The correct answer is D
For RAID 5 with FTT=1 is required 2n+2 host per site, this is 4 hosts.
Thus each site is built as follow:
Prefered site = 4 host
non-prefered site = 4 hosts
witness site = 1
Total is required 9 hosts across ALL sites.
The nomenclature used
to describe a Virtual SAN Stretched Cluster configuration is X+Y+Z, where X is
the number of ESXi hosts at data site A, Y is the number of ESXi hosts at data
site B, and Z is the number of witness hosts at site C
in stretched design, we use a witness in virtualization mode and low for the minimum host for rais -5 reduce to 3 Host per site. I think the correct answer is B
"Failure to tolerate" field defines the protection into the site. In this case we have two sites, so each site will have a RAID 5 and 8 hosts (4 per site) will be required.
C is the right answer.
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