For an8-node vSAN OSA cluster, the administrator needs a storage policy that:

Tolerates2 host failures, and

Providesmaximum usable capacity.

RAID-5/6 (erasure coding)is more capacity-efficient than RAID-1 mirroring.

To tolerate2 failures, the correct policy isRAID-5 with FTT=2.

RAID-1 (mirroring) would consume far more capacity, reducing usable space.

Other options:

A. 1 failure - RAID-1→ Only tolerates one failure.

C. 3 failures - RAID-1→ Provides higher resilience but uses much more capacity, not maximum efficiency.

D. 1 failure - RAID-5→ Tolerates only one failure.