Choosing a disk type

When you create volumes for ONTAP Cloud systems, you need to choose the underlying AWS or Azure disk type. Each disk type is designed for different workloads. You should choose the disk that meets your requirements for both performance and cost.

AWS disk types

At a high level, the differences between AWS disk types are as follows:

Note: Cold HDD disks are not supported with ONTAP Cloud HA configurations.

For additional details about the use cases for these disks, refer to AWS documentation.

AWS Documentation: EBS Volume Types

Azure disk types

The underlying disk type for Azure is either Premium Storage or Standard Storage:

  • Premium Storage disks store data on solid state drives (SSDs). The SSD disks provide high performance for I/O-intensive workloads at a higher cost.
  • If you do not need high IOPS, you can limit your costs by using Standard Storage disks which are backed by hard disk drives (HDD).

For additional details about the use cases for these disks, refer to Azure documentation.

Microsoft Azure Documentation: Introduction to Microsoft Azure Storage