
Explanation:
Storage Type: Premium SSD that uses zone-redundant storage (ZRS)
Host Caching: Read-only
The reasons for this recommendation are:
Premium SSD disks provide the lowest latency and the highest performance among the available disk types12.
Zone-redundant storage (ZRS) provides data resiliency in the event of a datacenter outage by replicating the data across three availability zones in the same region12.
Read-only host caching can improve the read performance of the disk by using the VM's RAM and local SSD as a cache13. This can also reduce the impact of a host failure on the disk data, as the cached data is not lost4.
Read/write host caching is not recommended for Premium SSD disks, as it can introduce additional latency and reduce the durability guarantees of the disk13.