An architect is tasked with deploying a new VI Workload Domain cluster to support the HR system.
The default storage policy must satisfy the following requirements:
Support two host failures -
Use the least amount of hosts -
Maximize user capacity -
Which configuration will satisfy these requirements?
To satisfy the requirements of supporting two host failures, using the least amount of hosts, and maximizing user capacity, the best configuration is 4 Hosts, FTT=2, RAID 1. RAID 1 (mirroring) requires fewer hosts compared to RAID 5/6 when FTT=2 (Failures to Tolerate), which needs at least six hosts. Therefore, although RAID 1 will use more storage overhead for mirroring, it will utilize fewer hosts compared to RAID 5/6 while still achieving the required fault tolerance.
to use RAID 5/6 with FTT=2 you need 6 hosts
https://docs.vmware.com/en/VMware-Cloud-on-AWS/services/com.vmware.vsphere.vmc-aws-manage-data-center-vms.doc/GUID-EDBB551B-51B0-421B-9C44-6ECB66ED660B.html
Table "RAID Configurations, FTT, and Host Requirements" https://docs.vmware.com/en/VMware-Cloud-on-AWS/services/com.vmware.vsphere.vmc-aws-manage-data-center-vms.doc/GUID-EDBB551B-51B0-421B-9C44-6ECB66ED660B.html
the best answer is A. 5 Hosts, FFT=2, RAID 5/6.
For Christs sake, to use RAID 5/6 with FTT=2 you need 6 hosts and there is no such option in the answers. Right answer is D.
FTT=2 R5/6 needs 6 hosts
the best answer is D. 5 Hosts, FFT=2, RAID 5/6.
D. FTT=2, RAID 1 you mean.