Azure disks
There are two types of Azure disks: managed disks and unmanaged disks. Before Azure managed disks, users had to create storage accounts to use unmanaged disks. A storage account might exceed the scalability target (https://docs.microsoft.com/en-us/azure/storage/common/storage-scalability-targets) and impact the performance of I/O. With managed disks, we don't need to create storage accounts by ourselves; Azure manages the accounts behind the scene. There are different types of performance tiers: standard HDD disks, standard SSD disks, and Premium SSD disks. HDD disks (https://en.wikipedia.org/wiki/Hard_disk_drive) are a cost-effective option, while SSDs (https://en.wikipedia.org/wiki/Solid-state_drive) have better performance. ...
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