A database performs small random reads. Its data disk supports 20,000 IOPS, but the VM aggregate limit is 8,000 IOPS. What should the architect investigate first?

Choose the single best answer.

A.Increase disk IOPS to 40,000 while retaining the same VM
B.Move the database to the temporary disk for durability
C.Select a VM size with sufficient aggregate I/O capacity and validate the complete disk path
D.Use disk throughput in MB/s as the only sizing measure

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✓ Correct answer

Select a VM size with sufficient aggregate I/O capacity and validate the complete disk path

The VM's aggregate IOPS cap can limit the disk path, so VM and disk sizing must be evaluated together. More disk IOPS cannot remove that VM cap, temporary storage is not durable business storage, and MB/s alone does not characterize small random I/O demand. Source guide: PDF page(s) 44.

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