Probably inaccurate pricing for azure managed disks

[sayap]

From the report:

Azure does not provide a 2500 GB option; we used the average cost of a 2TB option and scaled it to 2.5TB.

If I understand correctly, on azure, a 2.5TB premium disk will cost the same as a 4TB premium disk, while a 2.5TB ultra disk will cost the same as a 3TB ultra disk. The former is the disk size as presented to the virtual machine, the latter is the actual disk size. In this case, it so happens that there is no performance difference between a 2TB and a 4TB premium disk, nor between a 2TB and a 3TB ultra disk, thus the performance numbers should be still fair to other providers. However, the pricing calculation as quoted above can still be misleading.

Going forward, the best approach is probably to use either a 2TB disk or a 4TB disk, to cater to azure.